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6b04fdc0b6
Module generators are using standard *_add_instance() methods which helps with testing, it also updates grades and calendar events if used.
8179 lines
292 KiB
PHP
8179 lines
292 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* @package mod
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* @subpackage forum
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* @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die();
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/** Include required files */
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require_once($CFG->libdir.'/filelib.php');
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require_once($CFG->libdir.'/eventslib.php');
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require_once($CFG->dirroot.'/user/selector/lib.php');
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/// CONSTANTS ///////////////////////////////////////////////////////////
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define('FORUM_MODE_FLATOLDEST', 1);
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define('FORUM_MODE_FLATNEWEST', -1);
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define('FORUM_MODE_THREADED', 2);
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define('FORUM_MODE_NESTED', 3);
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define('FORUM_CHOOSESUBSCRIBE', 0);
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define('FORUM_FORCESUBSCRIBE', 1);
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define('FORUM_INITIALSUBSCRIBE', 2);
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define('FORUM_DISALLOWSUBSCRIBE',3);
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define('FORUM_TRACKING_OFF', 0);
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define('FORUM_TRACKING_OPTIONAL', 1);
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define('FORUM_TRACKING_ON', 2);
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/// STANDARD FUNCTIONS ///////////////////////////////////////////////////////////
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/**
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* Given an object containing all the necessary data,
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* (defined by the form in mod_form.php) this function
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* will create a new instance and return the id number
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* of the new instance.
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*
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* @param stdClass $forum add forum instance
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* @param mod_forum_mod_form $mform
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* @return int intance id
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*/
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function forum_add_instance($forum, $mform = null) {
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global $CFG, $DB;
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$forum->timemodified = time();
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if (empty($forum->assessed)) {
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$forum->assessed = 0;
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}
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if (empty($forum->ratingtime) or empty($forum->assessed)) {
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$forum->assesstimestart = 0;
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$forum->assesstimefinish = 0;
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}
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$forum->id = $DB->insert_record('forum', $forum);
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$modcontext = get_context_instance(CONTEXT_MODULE, $forum->coursemodule);
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if ($forum->type == 'single') { // Create related discussion.
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$discussion = new stdClass();
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$discussion->course = $forum->course;
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$discussion->forum = $forum->id;
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$discussion->name = $forum->name;
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$discussion->assessed = $forum->assessed;
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$discussion->message = $forum->intro;
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$discussion->messageformat = $forum->introformat;
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$discussion->messagetrust = trusttext_trusted(get_context_instance(CONTEXT_COURSE, $forum->course));
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$discussion->mailnow = false;
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$discussion->groupid = -1;
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$message = '';
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$discussion->id = forum_add_discussion($discussion, null, $message);
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if ($mform and $draftid = file_get_submitted_draft_itemid('introeditor')) {
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// ugly hack - we need to copy the files somehow
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$discussion = $DB->get_record('forum_discussions', array('id'=>$discussion->id), '*', MUST_EXIST);
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$post = $DB->get_record('forum_posts', array('id'=>$discussion->firstpost), '*', MUST_EXIST);
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$post->message = file_save_draft_area_files($draftid, $modcontext->id, 'mod_forum', 'post', $post->id, array('subdirs'=>true), $post->message);
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$DB->set_field('forum_posts', 'message', $post->message, array('id'=>$post->id));
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}
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}
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if ($forum->forcesubscribe == FORUM_INITIALSUBSCRIBE) {
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/// all users should be subscribed initially
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/// Note: forum_get_potential_subscribers should take the forum context,
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/// but that does not exist yet, becuase the forum is only half build at this
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/// stage. However, because the forum is brand new, we know that there are
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/// no role assignments or overrides in the forum context, so using the
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/// course context gives the same list of users.
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$users = forum_get_potential_subscribers($modcontext, 0, 'u.id, u.email', '');
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foreach ($users as $user) {
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forum_subscribe($user->id, $forum->id);
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}
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}
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forum_grade_item_update($forum);
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return $forum->id;
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}
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/**
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* Given an object containing all the necessary data,
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* (defined by the form in mod_form.php) this function
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* will update an existing instance with new data.
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*
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* @global object
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* @param object $forum forum instance (with magic quotes)
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* @return bool success
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*/
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function forum_update_instance($forum, $mform) {
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global $DB, $OUTPUT, $USER;
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$forum->timemodified = time();
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$forum->id = $forum->instance;
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if (empty($forum->assessed)) {
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$forum->assessed = 0;
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}
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if (empty($forum->ratingtime) or empty($forum->assessed)) {
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$forum->assesstimestart = 0;
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$forum->assesstimefinish = 0;
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}
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$oldforum = $DB->get_record('forum', array('id'=>$forum->id));
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// MDL-3942 - if the aggregation type or scale (i.e. max grade) changes then recalculate the grades for the entire forum
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// if scale changes - do we need to recheck the ratings, if ratings higher than scale how do we want to respond?
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// for count and sum aggregation types the grade we check to make sure they do not exceed the scale (i.e. max score) when calculating the grade
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if (($oldforum->assessed<>$forum->assessed) or ($oldforum->scale<>$forum->scale)) {
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forum_update_grades($forum); // recalculate grades for the forum
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}
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if ($forum->type == 'single') { // Update related discussion and post.
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$discussions = $DB->get_records('forum_discussions', array('forum'=>$forum->id), 'timemodified ASC');
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if (!empty($discussions)) {
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if (count($discussions) > 1) {
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echo $OUTPUT->notification(get_string('warnformorepost', 'forum'));
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}
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$discussion = array_pop($discussions);
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} else {
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// try to recover by creating initial discussion - MDL-16262
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$discussion = new stdClass();
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$discussion->course = $forum->course;
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$discussion->forum = $forum->id;
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$discussion->name = $forum->name;
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$discussion->assessed = $forum->assessed;
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$discussion->message = $forum->intro;
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$discussion->messageformat = $forum->introformat;
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$discussion->messagetrust = true;
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$discussion->mailnow = false;
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$discussion->groupid = -1;
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$message = '';
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forum_add_discussion($discussion, null, $message);
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if (! $discussion = $DB->get_record('forum_discussions', array('forum'=>$forum->id))) {
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print_error('cannotadd', 'forum');
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}
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}
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if (! $post = $DB->get_record('forum_posts', array('id'=>$discussion->firstpost))) {
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print_error('cannotfindfirstpost', 'forum');
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}
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$cm = get_coursemodule_from_instance('forum', $forum->id);
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$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id, MUST_EXIST);
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if ($mform and $draftid = file_get_submitted_draft_itemid('introeditor')) {
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// ugly hack - we need to copy the files somehow
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$discussion = $DB->get_record('forum_discussions', array('id'=>$discussion->id), '*', MUST_EXIST);
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$post = $DB->get_record('forum_posts', array('id'=>$discussion->firstpost), '*', MUST_EXIST);
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$post->message = file_save_draft_area_files($draftid, $modcontext->id, 'mod_forum', 'post', $post->id, array('subdirs'=>true), $post->message);
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}
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$post->subject = $forum->name;
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$post->message = $forum->intro;
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$post->messageformat = $forum->introformat;
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$post->messagetrust = trusttext_trusted($modcontext);
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$post->modified = $forum->timemodified;
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$post->userid = $USER->id; // MDL-18599, so that current teacher can take ownership of activities
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$DB->update_record('forum_posts', $post);
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$discussion->name = $forum->name;
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$DB->update_record('forum_discussions', $discussion);
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}
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$DB->update_record('forum', $forum);
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forum_grade_item_update($forum);
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return true;
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}
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/**
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* Given an ID of an instance of this module,
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* this function will permanently delete the instance
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* and any data that depends on it.
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*
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* @global object
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* @param int $id forum instance id
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* @return bool success
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*/
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function forum_delete_instance($id) {
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global $DB;
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if (!$forum = $DB->get_record('forum', array('id'=>$id))) {
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return false;
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}
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if (!$cm = get_coursemodule_from_instance('forum', $forum->id)) {
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return false;
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}
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if (!$course = $DB->get_record('course', array('id'=>$cm->course))) {
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return false;
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}
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$context = get_context_instance(CONTEXT_MODULE, $cm->id);
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// now get rid of all files
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$fs = get_file_storage();
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$fs->delete_area_files($context->id);
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$result = true;
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if ($discussions = $DB->get_records('forum_discussions', array('forum'=>$forum->id))) {
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foreach ($discussions as $discussion) {
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if (!forum_delete_discussion($discussion, true, $course, $cm, $forum)) {
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$result = false;
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}
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}
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}
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if (!$DB->delete_records('forum_subscriptions', array('forum'=>$forum->id))) {
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$result = false;
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}
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forum_tp_delete_read_records(-1, -1, -1, $forum->id);
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if (!$DB->delete_records('forum', array('id'=>$forum->id))) {
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$result = false;
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}
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forum_grade_item_delete($forum);
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return $result;
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}
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/**
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* Indicates API features that the forum supports.
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*
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* @uses FEATURE_GROUPS
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* @uses FEATURE_GROUPINGS
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* @uses FEATURE_GROUPMEMBERSONLY
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* @uses FEATURE_MOD_INTRO
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* @uses FEATURE_COMPLETION_TRACKS_VIEWS
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* @uses FEATURE_COMPLETION_HAS_RULES
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* @uses FEATURE_GRADE_HAS_GRADE
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* @uses FEATURE_GRADE_OUTCOMES
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* @param string $feature
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* @return mixed True if yes (some features may use other values)
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*/
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function forum_supports($feature) {
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switch($feature) {
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case FEATURE_GROUPS: return true;
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case FEATURE_GROUPINGS: return true;
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case FEATURE_GROUPMEMBERSONLY: return true;
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case FEATURE_MOD_INTRO: return true;
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case FEATURE_COMPLETION_TRACKS_VIEWS: return true;
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case FEATURE_COMPLETION_HAS_RULES: return true;
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case FEATURE_GRADE_HAS_GRADE: return true;
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case FEATURE_GRADE_OUTCOMES: return true;
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case FEATURE_RATE: return true;
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case FEATURE_BACKUP_MOODLE2: return true;
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case FEATURE_SHOW_DESCRIPTION: return true;
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default: return null;
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}
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}
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/**
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* Obtains the automatic completion state for this forum based on any conditions
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* in forum settings.
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*
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* @global object
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* @global object
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* @param object $course Course
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* @param object $cm Course-module
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* @param int $userid User ID
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* @param bool $type Type of comparison (or/and; can be used as return value if no conditions)
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* @return bool True if completed, false if not. (If no conditions, then return
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* value depends on comparison type)
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*/
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function forum_get_completion_state($course,$cm,$userid,$type) {
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global $CFG,$DB;
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// Get forum details
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if (!($forum=$DB->get_record('forum',array('id'=>$cm->instance)))) {
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throw new Exception("Can't find forum {$cm->instance}");
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}
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$result=$type; // Default return value
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$postcountparams=array('userid'=>$userid,'forumid'=>$forum->id);
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$postcountsql="
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SELECT
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COUNT(1)
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FROM
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{forum_posts} fp
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INNER JOIN {forum_discussions} fd ON fp.discussion=fd.id
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WHERE
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fp.userid=:userid AND fd.forum=:forumid";
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if ($forum->completiondiscussions) {
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$value = $forum->completiondiscussions <=
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$DB->count_records('forum_discussions',array('forum'=>$forum->id,'userid'=>$userid));
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if ($type == COMPLETION_AND) {
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$result = $result && $value;
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} else {
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$result = $result || $value;
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}
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}
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if ($forum->completionreplies) {
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$value = $forum->completionreplies <=
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$DB->get_field_sql( $postcountsql.' AND fp.parent<>0',$postcountparams);
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if ($type==COMPLETION_AND) {
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$result = $result && $value;
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} else {
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$result = $result || $value;
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}
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}
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if ($forum->completionposts) {
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$value = $forum->completionposts <= $DB->get_field_sql($postcountsql,$postcountparams);
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if ($type == COMPLETION_AND) {
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$result = $result && $value;
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} else {
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$result = $result || $value;
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}
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}
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return $result;
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}
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/**
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* Create a message-id string to use in the custom headers of forum notification emails
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*
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* message-id is used by email clients to identify emails and to nest conversations
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*
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* @param int $postid The ID of the forum post we are notifying the user about
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* @param int $usertoid The ID of the user being notified
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* @param string $hostname The server's hostname
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* @return string A unique message-id
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*/
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function forum_get_email_message_id($postid, $usertoid, $hostname) {
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return '<'.hash('sha256',$postid.'to'.$usertoid.'@'.$hostname).'>';
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}
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/**
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* Function to be run periodically according to the moodle cron
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* Finds all posts that have yet to be mailed out, and mails them
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* out to all subscribers
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*
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* @global object
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* @global object
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* @global object
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* @uses CONTEXT_MODULE
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* @uses CONTEXT_COURSE
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* @uses SITEID
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* @uses FORMAT_PLAIN
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* @return void
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*/
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function forum_cron() {
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global $CFG, $USER, $DB;
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$site = get_site();
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// all users that are subscribed to any post that needs sending
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$users = array();
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// status arrays
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$mailcount = array();
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$errorcount = array();
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// caches
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$discussions = array();
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$forums = array();
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$courses = array();
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$coursemodules = array();
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$subscribedusers = array();
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// Posts older than 2 days will not be mailed. This is to avoid the problem where
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// cron has not been running for a long time, and then suddenly people are flooded
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// with mail from the past few weeks or months
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$timenow = time();
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$endtime = $timenow - $CFG->maxeditingtime;
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$starttime = $endtime - 48 * 3600; // Two days earlier
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if ($posts = forum_get_unmailed_posts($starttime, $endtime, $timenow)) {
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// Mark them all now as being mailed. It's unlikely but possible there
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// might be an error later so that a post is NOT actually mailed out,
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// but since mail isn't crucial, we can accept this risk. Doing it now
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// prevents the risk of duplicated mails, which is a worse problem.
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if (!forum_mark_old_posts_as_mailed($endtime)) {
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mtrace('Errors occurred while trying to mark some posts as being mailed.');
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return false; // Don't continue trying to mail them, in case we are in a cron loop
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}
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// checking post validity, and adding users to loop through later
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foreach ($posts as $pid => $post) {
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$discussionid = $post->discussion;
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if (!isset($discussions[$discussionid])) {
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if ($discussion = $DB->get_record('forum_discussions', array('id'=> $post->discussion))) {
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$discussions[$discussionid] = $discussion;
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} else {
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mtrace('Could not find discussion '.$discussionid);
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unset($posts[$pid]);
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continue;
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}
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}
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$forumid = $discussions[$discussionid]->forum;
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if (!isset($forums[$forumid])) {
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if ($forum = $DB->get_record('forum', array('id' => $forumid))) {
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$forums[$forumid] = $forum;
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} else {
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mtrace('Could not find forum '.$forumid);
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unset($posts[$pid]);
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continue;
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}
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}
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$courseid = $forums[$forumid]->course;
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if (!isset($courses[$courseid])) {
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if ($course = $DB->get_record('course', array('id' => $courseid))) {
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$courses[$courseid] = $course;
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} else {
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mtrace('Could not find course '.$courseid);
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unset($posts[$pid]);
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continue;
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}
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}
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if (!isset($coursemodules[$forumid])) {
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if ($cm = get_coursemodule_from_instance('forum', $forumid, $courseid)) {
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$coursemodules[$forumid] = $cm;
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} else {
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mtrace('Could not find course module for forum '.$forumid);
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unset($posts[$pid]);
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continue;
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}
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}
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// caching subscribed users of each forum
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if (!isset($subscribedusers[$forumid])) {
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$modcontext = get_context_instance(CONTEXT_MODULE, $coursemodules[$forumid]->id);
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if ($subusers = forum_subscribed_users($courses[$courseid], $forums[$forumid], 0, $modcontext, "u.*")) {
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foreach ($subusers as $postuser) {
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unset($postuser->description); // not necessary
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// this user is subscribed to this forum
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$subscribedusers[$forumid][$postuser->id] = $postuser->id;
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// this user is a user we have to process later
|
|
$users[$postuser->id] = $postuser;
|
|
}
|
|
unset($subusers); // release memory
|
|
}
|
|
}
|
|
|
|
$mailcount[$pid] = 0;
|
|
$errorcount[$pid] = 0;
|
|
}
|
|
}
|
|
|
|
if ($users && $posts) {
|
|
|
|
$urlinfo = parse_url($CFG->wwwroot);
|
|
$hostname = $urlinfo['host'];
|
|
|
|
foreach ($users as $userto) {
|
|
|
|
@set_time_limit(120); // terminate if processing of any account takes longer than 2 minutes
|
|
|
|
// set this so that the capabilities are cached, and environment matches receiving user
|
|
cron_setup_user($userto);
|
|
|
|
mtrace('Processing user '.$userto->id);
|
|
|
|
// init caches
|
|
$userto->viewfullnames = array();
|
|
$userto->canpost = array();
|
|
$userto->markposts = array();
|
|
|
|
// reset the caches
|
|
foreach ($coursemodules as $forumid=>$unused) {
|
|
$coursemodules[$forumid]->cache = new stdClass();
|
|
$coursemodules[$forumid]->cache->caps = array();
|
|
unset($coursemodules[$forumid]->uservisible);
|
|
}
|
|
|
|
foreach ($posts as $pid => $post) {
|
|
|
|
// Set up the environment for the post, discussion, forum, course
|
|
$discussion = $discussions[$post->discussion];
|
|
$forum = $forums[$discussion->forum];
|
|
$course = $courses[$forum->course];
|
|
$cm =& $coursemodules[$forum->id];
|
|
|
|
// Do some checks to see if we can bail out now
|
|
// Only active enrolled users are in the list of subscribers
|
|
if (!isset($subscribedusers[$forum->id][$userto->id])) {
|
|
continue; // user does not subscribe to this forum
|
|
}
|
|
|
|
// Don't send email if the forum is Q&A and the user has not posted
|
|
// Initial topics are still mailed
|
|
if ($forum->type == 'qanda' && !forum_get_user_posted_time($discussion->id, $userto->id) && $pid != $discussion->firstpost) {
|
|
mtrace('Did not email '.$userto->id.' because user has not posted in discussion');
|
|
continue;
|
|
}
|
|
|
|
// Get info about the sending user
|
|
if (array_key_exists($post->userid, $users)) { // we might know him/her already
|
|
$userfrom = $users[$post->userid];
|
|
} else if ($userfrom = $DB->get_record('user', array('id' => $post->userid))) {
|
|
unset($userfrom->description); // not necessary
|
|
$users[$userfrom->id] = $userfrom; // fetch only once, we can add it to user list, it will be skipped anyway
|
|
} else {
|
|
mtrace('Could not find user '.$post->userid);
|
|
continue;
|
|
}
|
|
|
|
//if we want to check that userto and userfrom are not the same person this is probably the spot to do it
|
|
|
|
// setup global $COURSE properly - needed for roles and languages
|
|
cron_setup_user($userto, $course);
|
|
|
|
// Fill caches
|
|
if (!isset($userto->viewfullnames[$forum->id])) {
|
|
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
$userto->viewfullnames[$forum->id] = has_capability('moodle/site:viewfullnames', $modcontext);
|
|
}
|
|
if (!isset($userto->canpost[$discussion->id])) {
|
|
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
$userto->canpost[$discussion->id] = forum_user_can_post($forum, $discussion, $userto, $cm, $course, $modcontext);
|
|
}
|
|
if (!isset($userfrom->groups[$forum->id])) {
|
|
if (!isset($userfrom->groups)) {
|
|
$userfrom->groups = array();
|
|
$users[$userfrom->id]->groups = array();
|
|
}
|
|
$userfrom->groups[$forum->id] = groups_get_all_groups($course->id, $userfrom->id, $cm->groupingid);
|
|
$users[$userfrom->id]->groups[$forum->id] = $userfrom->groups[$forum->id];
|
|
}
|
|
|
|
// Make sure groups allow this user to see this email
|
|
if ($discussion->groupid > 0 and $groupmode = groups_get_activity_groupmode($cm, $course)) { // Groups are being used
|
|
if (!groups_group_exists($discussion->groupid)) { // Can't find group
|
|
continue; // Be safe and don't send it to anyone
|
|
}
|
|
|
|
if (!groups_is_member($discussion->groupid) and !has_capability('moodle/site:accessallgroups', $modcontext)) {
|
|
// do not send posts from other groups when in SEPARATEGROUPS or VISIBLEGROUPS
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// Make sure we're allowed to see it...
|
|
if (!forum_user_can_see_post($forum, $discussion, $post, NULL, $cm)) {
|
|
mtrace('user '.$userto->id. ' can not see '.$post->id);
|
|
continue;
|
|
}
|
|
|
|
// OK so we need to send the email.
|
|
|
|
// Does the user want this post in a digest? If so postpone it for now.
|
|
if ($userto->maildigest > 0) {
|
|
// This user wants the mails to be in digest form
|
|
$queue = new stdClass();
|
|
$queue->userid = $userto->id;
|
|
$queue->discussionid = $discussion->id;
|
|
$queue->postid = $post->id;
|
|
$queue->timemodified = $post->created;
|
|
$DB->insert_record('forum_queue', $queue);
|
|
continue;
|
|
}
|
|
|
|
|
|
// Prepare to actually send the post now, and build up the content
|
|
|
|
$cleanforumname = str_replace('"', "'", strip_tags(format_string($forum->name)));
|
|
|
|
$userfrom->customheaders = array ( // Headers to make emails easier to track
|
|
'Precedence: Bulk',
|
|
'List-Id: "'.$cleanforumname.'" <moodleforum'.$forum->id.'@'.$hostname.'>',
|
|
'List-Help: '.$CFG->wwwroot.'/mod/forum/view.php?f='.$forum->id,
|
|
'Message-ID: '.forum_get_email_message_id($post->id, $userto->id, $hostname),
|
|
'X-Course-Id: '.$course->id,
|
|
'X-Course-Name: '.format_string($course->fullname, true)
|
|
);
|
|
|
|
if ($post->parent) { // This post is a reply, so add headers for threading (see MDL-22551)
|
|
$userfrom->customheaders[] = 'In-Reply-To: '.forum_get_email_message_id($post->parent, $userto->id, $hostname);
|
|
$userfrom->customheaders[] = 'References: '.forum_get_email_message_id($post->parent, $userto->id, $hostname);
|
|
}
|
|
|
|
$shortname = format_string($course->shortname, true, array('context' => get_context_instance(CONTEXT_COURSE, $course->id)));
|
|
|
|
$postsubject = "$shortname: ".format_string($post->subject,true);
|
|
$posttext = forum_make_mail_text($course, $cm, $forum, $discussion, $post, $userfrom, $userto);
|
|
$posthtml = forum_make_mail_html($course, $cm, $forum, $discussion, $post, $userfrom, $userto);
|
|
|
|
// Send the post now!
|
|
|
|
mtrace('Sending ', '');
|
|
|
|
$eventdata = new stdClass();
|
|
$eventdata->component = 'mod_forum';
|
|
$eventdata->name = 'posts';
|
|
$eventdata->userfrom = $userfrom;
|
|
$eventdata->userto = $userto;
|
|
$eventdata->subject = $postsubject;
|
|
$eventdata->fullmessage = $posttext;
|
|
$eventdata->fullmessageformat = FORMAT_PLAIN;
|
|
$eventdata->fullmessagehtml = $posthtml;
|
|
$eventdata->notification = 1;
|
|
|
|
$smallmessagestrings = new stdClass();
|
|
$smallmessagestrings->user = fullname($userfrom);
|
|
$smallmessagestrings->forumname = "$shortname: ".format_string($forum->name,true).": ".$discussion->name;
|
|
$smallmessagestrings->message = $post->message;
|
|
//make sure strings are in message recipients language
|
|
$eventdata->smallmessage = get_string_manager()->get_string('smallmessage', 'forum', $smallmessagestrings, $userto->lang);
|
|
|
|
$eventdata->contexturl = "{$CFG->wwwroot}/mod/forum/discuss.php?d={$discussion->id}#p{$post->id}";
|
|
$eventdata->contexturlname = $discussion->name;
|
|
|
|
$mailresult = message_send($eventdata);
|
|
if (!$mailresult){
|
|
mtrace("Error: mod/forum/lib.php forum_cron(): Could not send out mail for id $post->id to user $userto->id".
|
|
" ($userto->email) .. not trying again.");
|
|
add_to_log($course->id, 'forum', 'mail error', "discuss.php?d=$discussion->id#p$post->id",
|
|
substr(format_string($post->subject,true),0,30), $cm->id, $userto->id);
|
|
$errorcount[$post->id]++;
|
|
} else {
|
|
$mailcount[$post->id]++;
|
|
|
|
// Mark post as read if forum_usermarksread is set off
|
|
if (!$CFG->forum_usermarksread) {
|
|
$userto->markposts[$post->id] = $post->id;
|
|
}
|
|
}
|
|
|
|
mtrace('post '.$post->id. ': '.$post->subject);
|
|
}
|
|
|
|
// mark processed posts as read
|
|
forum_tp_mark_posts_read($userto, $userto->markposts);
|
|
}
|
|
}
|
|
|
|
if ($posts) {
|
|
foreach ($posts as $post) {
|
|
mtrace($mailcount[$post->id]." users were sent post $post->id, '$post->subject'");
|
|
if ($errorcount[$post->id]) {
|
|
$DB->set_field("forum_posts", "mailed", "2", array("id" => "$post->id"));
|
|
}
|
|
}
|
|
}
|
|
|
|
// release some memory
|
|
unset($subscribedusers);
|
|
unset($mailcount);
|
|
unset($errorcount);
|
|
|
|
cron_setup_user();
|
|
|
|
$sitetimezone = $CFG->timezone;
|
|
|
|
// Now see if there are any digest mails waiting to be sent, and if we should send them
|
|
|
|
mtrace('Starting digest processing...');
|
|
|
|
@set_time_limit(300); // terminate if not able to fetch all digests in 5 minutes
|
|
|
|
if (!isset($CFG->digestmailtimelast)) { // To catch the first time
|
|
set_config('digestmailtimelast', 0);
|
|
}
|
|
|
|
$timenow = time();
|
|
$digesttime = usergetmidnight($timenow, $sitetimezone) + ($CFG->digestmailtime * 3600);
|
|
|
|
// Delete any really old ones (normally there shouldn't be any)
|
|
$weekago = $timenow - (7 * 24 * 3600);
|
|
$DB->delete_records_select('forum_queue', "timemodified < ?", array($weekago));
|
|
mtrace ('Cleaned old digest records');
|
|
|
|
if ($CFG->digestmailtimelast < $digesttime and $timenow > $digesttime) {
|
|
|
|
mtrace('Sending forum digests: '.userdate($timenow, '', $sitetimezone));
|
|
|
|
$digestposts_rs = $DB->get_recordset_select('forum_queue', "timemodified < ?", array($digesttime));
|
|
|
|
if ($digestposts_rs->valid()) {
|
|
|
|
// We have work to do
|
|
$usermailcount = 0;
|
|
|
|
//caches - reuse the those filled before too
|
|
$discussionposts = array();
|
|
$userdiscussions = array();
|
|
|
|
foreach ($digestposts_rs as $digestpost) {
|
|
if (!isset($users[$digestpost->userid])) {
|
|
if ($user = $DB->get_record('user', array('id' => $digestpost->userid))) {
|
|
$users[$digestpost->userid] = $user;
|
|
} else {
|
|
continue;
|
|
}
|
|
}
|
|
$postuser = $users[$digestpost->userid];
|
|
|
|
if (!isset($posts[$digestpost->postid])) {
|
|
if ($post = $DB->get_record('forum_posts', array('id' => $digestpost->postid))) {
|
|
$posts[$digestpost->postid] = $post;
|
|
} else {
|
|
continue;
|
|
}
|
|
}
|
|
$discussionid = $digestpost->discussionid;
|
|
if (!isset($discussions[$discussionid])) {
|
|
if ($discussion = $DB->get_record('forum_discussions', array('id' => $discussionid))) {
|
|
$discussions[$discussionid] = $discussion;
|
|
} else {
|
|
continue;
|
|
}
|
|
}
|
|
$forumid = $discussions[$discussionid]->forum;
|
|
if (!isset($forums[$forumid])) {
|
|
if ($forum = $DB->get_record('forum', array('id' => $forumid))) {
|
|
$forums[$forumid] = $forum;
|
|
} else {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
$courseid = $forums[$forumid]->course;
|
|
if (!isset($courses[$courseid])) {
|
|
if ($course = $DB->get_record('course', array('id' => $courseid))) {
|
|
$courses[$courseid] = $course;
|
|
} else {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (!isset($coursemodules[$forumid])) {
|
|
if ($cm = get_coursemodule_from_instance('forum', $forumid, $courseid)) {
|
|
$coursemodules[$forumid] = $cm;
|
|
} else {
|
|
continue;
|
|
}
|
|
}
|
|
$userdiscussions[$digestpost->userid][$digestpost->discussionid] = $digestpost->discussionid;
|
|
$discussionposts[$digestpost->discussionid][$digestpost->postid] = $digestpost->postid;
|
|
}
|
|
$digestposts_rs->close(); /// Finished iteration, let's close the resultset
|
|
|
|
// Data collected, start sending out emails to each user
|
|
foreach ($userdiscussions as $userid => $thesediscussions) {
|
|
|
|
@set_time_limit(120); // terminate if processing of any account takes longer than 2 minutes
|
|
|
|
cron_setup_user();
|
|
|
|
mtrace(get_string('processingdigest', 'forum', $userid), '... ');
|
|
|
|
// First of all delete all the queue entries for this user
|
|
$DB->delete_records_select('forum_queue', "userid = ? AND timemodified < ?", array($userid, $digesttime));
|
|
$userto = $users[$userid];
|
|
|
|
// Override the language and timezone of the "current" user, so that
|
|
// mail is customised for the receiver.
|
|
cron_setup_user($userto);
|
|
|
|
// init caches
|
|
$userto->viewfullnames = array();
|
|
$userto->canpost = array();
|
|
$userto->markposts = array();
|
|
|
|
$postsubject = get_string('digestmailsubject', 'forum', format_string($site->shortname, true));
|
|
|
|
$headerdata = new stdClass();
|
|
$headerdata->sitename = format_string($site->fullname, true);
|
|
$headerdata->userprefs = $CFG->wwwroot.'/user/edit.php?id='.$userid.'&course='.$site->id;
|
|
|
|
$posttext = get_string('digestmailheader', 'forum', $headerdata)."\n\n";
|
|
$headerdata->userprefs = '<a target="_blank" href="'.$headerdata->userprefs.'">'.get_string('digestmailprefs', 'forum').'</a>';
|
|
|
|
$posthtml = "<head>";
|
|
/* foreach ($CFG->stylesheets as $stylesheet) {
|
|
//TODO: MDL-21120
|
|
$posthtml .= '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'" />'."\n";
|
|
}*/
|
|
$posthtml .= "</head>\n<body id=\"email\">\n";
|
|
$posthtml .= '<p>'.get_string('digestmailheader', 'forum', $headerdata).'</p><br /><hr size="1" noshade="noshade" />';
|
|
|
|
foreach ($thesediscussions as $discussionid) {
|
|
|
|
@set_time_limit(120); // to be reset for each post
|
|
|
|
$discussion = $discussions[$discussionid];
|
|
$forum = $forums[$discussion->forum];
|
|
$course = $courses[$forum->course];
|
|
$cm = $coursemodules[$forum->id];
|
|
|
|
//override language
|
|
cron_setup_user($userto, $course);
|
|
|
|
// Fill caches
|
|
if (!isset($userto->viewfullnames[$forum->id])) {
|
|
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
$userto->viewfullnames[$forum->id] = has_capability('moodle/site:viewfullnames', $modcontext);
|
|
}
|
|
if (!isset($userto->canpost[$discussion->id])) {
|
|
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
$userto->canpost[$discussion->id] = forum_user_can_post($forum, $discussion, $userto, $cm, $course, $modcontext);
|
|
}
|
|
|
|
$strforums = get_string('forums', 'forum');
|
|
$canunsubscribe = ! forum_is_forcesubscribed($forum);
|
|
$canreply = $userto->canpost[$discussion->id];
|
|
$shortname = format_string($course->shortname, true, array('context' => get_context_instance(CONTEXT_COURSE, $course->id)));
|
|
|
|
$posttext .= "\n \n";
|
|
$posttext .= '=====================================================================';
|
|
$posttext .= "\n \n";
|
|
$posttext .= "$shortname -> $strforums -> ".format_string($forum->name,true);
|
|
if ($discussion->name != $forum->name) {
|
|
$posttext .= " -> ".format_string($discussion->name,true);
|
|
}
|
|
$posttext .= "\n";
|
|
|
|
$posthtml .= "<p><font face=\"sans-serif\">".
|
|
"<a target=\"_blank\" href=\"$CFG->wwwroot/course/view.php?id=$course->id\">$shortname</a> -> ".
|
|
"<a target=\"_blank\" href=\"$CFG->wwwroot/mod/forum/index.php?id=$course->id\">$strforums</a> -> ".
|
|
"<a target=\"_blank\" href=\"$CFG->wwwroot/mod/forum/view.php?f=$forum->id\">".format_string($forum->name,true)."</a>";
|
|
if ($discussion->name == $forum->name) {
|
|
$posthtml .= "</font></p>";
|
|
} else {
|
|
$posthtml .= " -> <a target=\"_blank\" href=\"$CFG->wwwroot/mod/forum/discuss.php?d=$discussion->id\">".format_string($discussion->name,true)."</a></font></p>";
|
|
}
|
|
$posthtml .= '<p>';
|
|
|
|
$postsarray = $discussionposts[$discussionid];
|
|
sort($postsarray);
|
|
|
|
foreach ($postsarray as $postid) {
|
|
$post = $posts[$postid];
|
|
|
|
if (array_key_exists($post->userid, $users)) { // we might know him/her already
|
|
$userfrom = $users[$post->userid];
|
|
} else if ($userfrom = $DB->get_record('user', array('id' => $post->userid))) {
|
|
$users[$userfrom->id] = $userfrom; // fetch only once, we can add it to user list, it will be skipped anyway
|
|
} else {
|
|
mtrace('Could not find user '.$post->userid);
|
|
continue;
|
|
}
|
|
|
|
if (!isset($userfrom->groups[$forum->id])) {
|
|
if (!isset($userfrom->groups)) {
|
|
$userfrom->groups = array();
|
|
$users[$userfrom->id]->groups = array();
|
|
}
|
|
$userfrom->groups[$forum->id] = groups_get_all_groups($course->id, $userfrom->id, $cm->groupingid);
|
|
$users[$userfrom->id]->groups[$forum->id] = $userfrom->groups[$forum->id];
|
|
}
|
|
|
|
$userfrom->customheaders = array ("Precedence: Bulk");
|
|
|
|
if ($userto->maildigest == 2) {
|
|
// Subjects only
|
|
$by = new stdClass();
|
|
$by->name = fullname($userfrom);
|
|
$by->date = userdate($post->modified);
|
|
$posttext .= "\n".format_string($post->subject,true).' '.get_string("bynameondate", "forum", $by);
|
|
$posttext .= "\n---------------------------------------------------------------------";
|
|
|
|
$by->name = "<a target=\"_blank\" href=\"$CFG->wwwroot/user/view.php?id=$userfrom->id&course=$course->id\">$by->name</a>";
|
|
$posthtml .= '<div><a target="_blank" href="'.$CFG->wwwroot.'/mod/forum/discuss.php?d='.$discussion->id.'#p'.$post->id.'">'.format_string($post->subject,true).'</a> '.get_string("bynameondate", "forum", $by).'</div>';
|
|
|
|
} else {
|
|
// The full treatment
|
|
$posttext .= forum_make_mail_text($course, $cm, $forum, $discussion, $post, $userfrom, $userto, true);
|
|
$posthtml .= forum_make_mail_post($course, $cm, $forum, $discussion, $post, $userfrom, $userto, false, $canreply, true, false);
|
|
|
|
// Create an array of postid's for this user to mark as read.
|
|
if (!$CFG->forum_usermarksread) {
|
|
$userto->markposts[$post->id] = $post->id;
|
|
}
|
|
}
|
|
}
|
|
if ($canunsubscribe) {
|
|
$posthtml .= "\n<div class='mdl-right'><font size=\"1\"><a href=\"$CFG->wwwroot/mod/forum/subscribe.php?id=$forum->id\">".get_string("unsubscribe", "forum")."</a></font></div>";
|
|
} else {
|
|
$posthtml .= "\n<div class='mdl-right'><font size=\"1\">".get_string("everyoneissubscribed", "forum")."</font></div>";
|
|
}
|
|
$posthtml .= '<hr size="1" noshade="noshade" /></p>';
|
|
}
|
|
$posthtml .= '</body>';
|
|
|
|
if (empty($userto->mailformat) || $userto->mailformat != 1) {
|
|
// This user DOESN'T want to receive HTML
|
|
$posthtml = '';
|
|
}
|
|
|
|
$attachment = $attachname='';
|
|
$usetrueaddress = true;
|
|
//directly email forum digests rather than sending them via messaging
|
|
$mailresult = email_to_user($userto, $site->shortname, $postsubject, $posttext, $posthtml, $attachment, $attachname, $usetrueaddress, $CFG->forum_replytouser);
|
|
|
|
if (!$mailresult) {
|
|
mtrace("ERROR!");
|
|
echo "Error: mod/forum/cron.php: Could not send out digest mail to user $userto->id ($userto->email)... not trying again.\n";
|
|
add_to_log($course->id, 'forum', 'mail digest error', '', '', $cm->id, $userto->id);
|
|
} else {
|
|
mtrace("success.");
|
|
$usermailcount++;
|
|
|
|
// Mark post as read if forum_usermarksread is set off
|
|
forum_tp_mark_posts_read($userto, $userto->markposts);
|
|
}
|
|
}
|
|
}
|
|
/// We have finishied all digest emails, update $CFG->digestmailtimelast
|
|
set_config('digestmailtimelast', $timenow);
|
|
}
|
|
|
|
cron_setup_user();
|
|
|
|
if (!empty($usermailcount)) {
|
|
mtrace(get_string('digestsentusers', 'forum', $usermailcount));
|
|
}
|
|
|
|
if (!empty($CFG->forum_lastreadclean)) {
|
|
$timenow = time();
|
|
if ($CFG->forum_lastreadclean + (24*3600) < $timenow) {
|
|
set_config('forum_lastreadclean', $timenow);
|
|
mtrace('Removing old forum read tracking info...');
|
|
forum_tp_clean_read_records();
|
|
}
|
|
} else {
|
|
set_config('forum_lastreadclean', time());
|
|
}
|
|
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Builds and returns the body of the email notification in plain text.
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @uses CONTEXT_MODULE
|
|
* @param object $course
|
|
* @param object $cm
|
|
* @param object $forum
|
|
* @param object $discussion
|
|
* @param object $post
|
|
* @param object $userfrom
|
|
* @param object $userto
|
|
* @param boolean $bare
|
|
* @return string The email body in plain text format.
|
|
*/
|
|
function forum_make_mail_text($course, $cm, $forum, $discussion, $post, $userfrom, $userto, $bare = false) {
|
|
global $CFG, $USER;
|
|
|
|
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
|
|
if (!isset($userto->viewfullnames[$forum->id])) {
|
|
$viewfullnames = has_capability('moodle/site:viewfullnames', $modcontext, $userto->id);
|
|
} else {
|
|
$viewfullnames = $userto->viewfullnames[$forum->id];
|
|
}
|
|
|
|
if (!isset($userto->canpost[$discussion->id])) {
|
|
$canreply = forum_user_can_post($forum, $discussion, $userto, $cm, $course, $modcontext);
|
|
} else {
|
|
$canreply = $userto->canpost[$discussion->id];
|
|
}
|
|
|
|
$by = New stdClass;
|
|
$by->name = fullname($userfrom, $viewfullnames);
|
|
$by->date = userdate($post->modified, "", $userto->timezone);
|
|
|
|
$strbynameondate = get_string('bynameondate', 'forum', $by);
|
|
|
|
$strforums = get_string('forums', 'forum');
|
|
|
|
$canunsubscribe = ! forum_is_forcesubscribed($forum);
|
|
|
|
$posttext = '';
|
|
|
|
if (!$bare) {
|
|
$shortname = format_string($course->shortname, true, array('context' => get_context_instance(CONTEXT_COURSE, $course->id)));
|
|
$posttext = "$shortname -> $strforums -> ".format_string($forum->name,true);
|
|
|
|
if ($discussion->name != $forum->name) {
|
|
$posttext .= " -> ".format_string($discussion->name,true);
|
|
}
|
|
}
|
|
|
|
// add absolute file links
|
|
$post->message = file_rewrite_pluginfile_urls($post->message, 'pluginfile.php', $modcontext->id, 'mod_forum', 'post', $post->id);
|
|
|
|
$posttext .= "\n---------------------------------------------------------------------\n";
|
|
$posttext .= format_string($post->subject,true);
|
|
if ($bare) {
|
|
$posttext .= " ($CFG->wwwroot/mod/forum/discuss.php?d=$discussion->id#p$post->id)";
|
|
}
|
|
$posttext .= "\n".$strbynameondate."\n";
|
|
$posttext .= "---------------------------------------------------------------------\n";
|
|
$posttext .= format_text_email($post->message, $post->messageformat);
|
|
$posttext .= "\n\n";
|
|
$posttext .= forum_print_attachments($post, $cm, "text");
|
|
|
|
if (!$bare && $canreply) {
|
|
$posttext .= "---------------------------------------------------------------------\n";
|
|
$posttext .= get_string("postmailinfo", "forum", $shortname)."\n";
|
|
$posttext .= "$CFG->wwwroot/mod/forum/post.php?reply=$post->id\n";
|
|
}
|
|
if (!$bare && $canunsubscribe) {
|
|
$posttext .= "\n---------------------------------------------------------------------\n";
|
|
$posttext .= get_string("unsubscribe", "forum");
|
|
$posttext .= ": $CFG->wwwroot/mod/forum/subscribe.php?id=$forum->id\n";
|
|
}
|
|
|
|
return $posttext;
|
|
}
|
|
|
|
/**
|
|
* Builds and returns the body of the email notification in html format.
|
|
*
|
|
* @global object
|
|
* @param object $course
|
|
* @param object $cm
|
|
* @param object $forum
|
|
* @param object $discussion
|
|
* @param object $post
|
|
* @param object $userfrom
|
|
* @param object $userto
|
|
* @return string The email text in HTML format
|
|
*/
|
|
function forum_make_mail_html($course, $cm, $forum, $discussion, $post, $userfrom, $userto) {
|
|
global $CFG;
|
|
|
|
if ($userto->mailformat != 1) { // Needs to be HTML
|
|
return '';
|
|
}
|
|
|
|
if (!isset($userto->canpost[$discussion->id])) {
|
|
$canreply = forum_user_can_post($forum, $discussion, $userto, $cm, $course);
|
|
} else {
|
|
$canreply = $userto->canpost[$discussion->id];
|
|
}
|
|
|
|
$strforums = get_string('forums', 'forum');
|
|
$canunsubscribe = ! forum_is_forcesubscribed($forum);
|
|
$shortname = format_string($course->shortname, true, array('context' => get_context_instance(CONTEXT_COURSE, $course->id)));
|
|
|
|
$posthtml = '<head>';
|
|
/* foreach ($CFG->stylesheets as $stylesheet) {
|
|
//TODO: MDL-21120
|
|
$posthtml .= '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'" />'."\n";
|
|
}*/
|
|
$posthtml .= '</head>';
|
|
$posthtml .= "\n<body id=\"email\">\n\n";
|
|
|
|
$posthtml .= '<div class="navbar">'.
|
|
'<a target="_blank" href="'.$CFG->wwwroot.'/course/view.php?id='.$course->id.'">'.$shortname.'</a> » '.
|
|
'<a target="_blank" href="'.$CFG->wwwroot.'/mod/forum/index.php?id='.$course->id.'">'.$strforums.'</a> » '.
|
|
'<a target="_blank" href="'.$CFG->wwwroot.'/mod/forum/view.php?f='.$forum->id.'">'.format_string($forum->name,true).'</a>';
|
|
if ($discussion->name == $forum->name) {
|
|
$posthtml .= '</div>';
|
|
} else {
|
|
$posthtml .= ' » <a target="_blank" href="'.$CFG->wwwroot.'/mod/forum/discuss.php?d='.$discussion->id.'">'.
|
|
format_string($discussion->name,true).'</a></div>';
|
|
}
|
|
$posthtml .= forum_make_mail_post($course, $cm, $forum, $discussion, $post, $userfrom, $userto, false, $canreply, true, false);
|
|
|
|
if ($canunsubscribe) {
|
|
$posthtml .= '<hr /><div class="mdl-align unsubscribelink">
|
|
<a href="'.$CFG->wwwroot.'/mod/forum/subscribe.php?id='.$forum->id.'">'.get_string('unsubscribe', 'forum').'</a>
|
|
<a href="'.$CFG->wwwroot.'/mod/forum/unsubscribeall.php">'.get_string('unsubscribeall', 'forum').'</a></div>';
|
|
}
|
|
|
|
$posthtml .= '</body>';
|
|
|
|
return $posthtml;
|
|
}
|
|
|
|
|
|
/**
|
|
*
|
|
* @param object $course
|
|
* @param object $user
|
|
* @param object $mod TODO this is not used in this function, refactor
|
|
* @param object $forum
|
|
* @return object A standard object with 2 variables: info (number of posts for this user) and time (last modified)
|
|
*/
|
|
function forum_user_outline($course, $user, $mod, $forum) {
|
|
global $CFG;
|
|
require_once("$CFG->libdir/gradelib.php");
|
|
$grades = grade_get_grades($course->id, 'mod', 'forum', $forum->id, $user->id);
|
|
if (empty($grades->items[0]->grades)) {
|
|
$grade = false;
|
|
} else {
|
|
$grade = reset($grades->items[0]->grades);
|
|
}
|
|
|
|
$count = forum_count_user_posts($forum->id, $user->id);
|
|
|
|
if ($count && $count->postcount > 0) {
|
|
$result = new stdClass();
|
|
$result->info = get_string("numposts", "forum", $count->postcount);
|
|
$result->time = $count->lastpost;
|
|
if ($grade) {
|
|
$result->info .= ', ' . get_string('grade') . ': ' . $grade->str_long_grade;
|
|
}
|
|
return $result;
|
|
} else if ($grade) {
|
|
$result = new stdClass();
|
|
$result->info = get_string('grade') . ': ' . $grade->str_long_grade;
|
|
|
|
//datesubmitted == time created. dategraded == time modified or time overridden
|
|
//if grade was last modified by the user themselves use date graded. Otherwise use date submitted
|
|
//TODO: move this copied & pasted code somewhere in the grades API. See MDL-26704
|
|
if ($grade->usermodified == $user->id || empty($grade->datesubmitted)) {
|
|
$result->time = $grade->dategraded;
|
|
} else {
|
|
$result->time = $grade->datesubmitted;
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/**
|
|
* @global object
|
|
* @global object
|
|
* @param object $coure
|
|
* @param object $user
|
|
* @param object $mod
|
|
* @param object $forum
|
|
*/
|
|
function forum_user_complete($course, $user, $mod, $forum) {
|
|
global $CFG,$USER, $OUTPUT;
|
|
require_once("$CFG->libdir/gradelib.php");
|
|
|
|
$grades = grade_get_grades($course->id, 'mod', 'forum', $forum->id, $user->id);
|
|
if (!empty($grades->items[0]->grades)) {
|
|
$grade = reset($grades->items[0]->grades);
|
|
echo $OUTPUT->container(get_string('grade').': '.$grade->str_long_grade);
|
|
if ($grade->str_feedback) {
|
|
echo $OUTPUT->container(get_string('feedback').': '.$grade->str_feedback);
|
|
}
|
|
}
|
|
|
|
if ($posts = forum_get_user_posts($forum->id, $user->id)) {
|
|
|
|
if (!$cm = get_coursemodule_from_instance('forum', $forum->id, $course->id)) {
|
|
print_error('invalidcoursemodule');
|
|
}
|
|
$discussions = forum_get_user_involved_discussions($forum->id, $user->id);
|
|
|
|
foreach ($posts as $post) {
|
|
if (!isset($discussions[$post->discussion])) {
|
|
continue;
|
|
}
|
|
$discussion = $discussions[$post->discussion];
|
|
|
|
forum_print_post($post, $discussion, $forum, $cm, $course, false, false, false);
|
|
}
|
|
} else {
|
|
echo "<p>".get_string("noposts", "forum")."</p>";
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
* @param array $courses
|
|
* @param array $htmlarray
|
|
*/
|
|
function forum_print_overview($courses,&$htmlarray) {
|
|
global $USER, $CFG, $DB, $SESSION;
|
|
|
|
if (empty($courses) || !is_array($courses) || count($courses) == 0) {
|
|
return array();
|
|
}
|
|
|
|
if (!$forums = get_all_instances_in_courses('forum',$courses)) {
|
|
return;
|
|
}
|
|
|
|
|
|
// get all forum logs in ONE query (much better!)
|
|
$params = array();
|
|
$sql = "SELECT instance,cmid,l.course,COUNT(l.id) as count FROM {log} l "
|
|
." JOIN {course_modules} cm ON cm.id = cmid "
|
|
." WHERE (";
|
|
foreach ($courses as $course) {
|
|
$sql .= '(l.course = ? AND l.time > ?) OR ';
|
|
$params[] = $course->id;
|
|
$params[] = $course->lastaccess;
|
|
}
|
|
$sql = substr($sql,0,-3); // take off the last OR
|
|
|
|
$sql .= ") AND l.module = 'forum' AND action = 'add post' "
|
|
." AND userid != ? GROUP BY cmid,l.course,instance";
|
|
|
|
$params[] = $USER->id;
|
|
|
|
if (!$new = $DB->get_records_sql($sql, $params)) {
|
|
$new = array(); // avoid warnings
|
|
}
|
|
|
|
// also get all forum tracking stuff ONCE.
|
|
$trackingforums = array();
|
|
foreach ($forums as $forum) {
|
|
if (forum_tp_can_track_forums($forum)) {
|
|
$trackingforums[$forum->id] = $forum;
|
|
}
|
|
}
|
|
|
|
if (count($trackingforums) > 0) {
|
|
$cutoffdate = isset($CFG->forum_oldpostdays) ? (time() - ($CFG->forum_oldpostdays*24*60*60)) : 0;
|
|
$sql = 'SELECT d.forum,d.course,COUNT(p.id) AS count '.
|
|
' FROM {forum_posts} p '.
|
|
' JOIN {forum_discussions} d ON p.discussion = d.id '.
|
|
' LEFT JOIN {forum_read} r ON r.postid = p.id AND r.userid = ? WHERE (';
|
|
$params = array($USER->id);
|
|
|
|
foreach ($trackingforums as $track) {
|
|
$sql .= '(d.forum = ? AND (d.groupid = -1 OR d.groupid = 0 OR d.groupid = ?)) OR ';
|
|
$params[] = $track->id;
|
|
if (isset($SESSION->currentgroup[$track->course])) {
|
|
$groupid = $SESSION->currentgroup[$track->course];
|
|
} else {
|
|
$groupid = groups_get_all_groups($track->course, $USER->id);
|
|
if (is_array($groupid)) {
|
|
$groupid = array_shift(array_keys($groupid));
|
|
$SESSION->currentgroup[$track->course] = $groupid;
|
|
} else {
|
|
$groupid = 0;
|
|
}
|
|
}
|
|
$params[] = $groupid;
|
|
}
|
|
$sql = substr($sql,0,-3); // take off the last OR
|
|
$sql .= ') AND p.modified >= ? AND r.id is NULL GROUP BY d.forum,d.course';
|
|
$params[] = $cutoffdate;
|
|
|
|
if (!$unread = $DB->get_records_sql($sql, $params)) {
|
|
$unread = array();
|
|
}
|
|
} else {
|
|
$unread = array();
|
|
}
|
|
|
|
if (empty($unread) and empty($new)) {
|
|
return;
|
|
}
|
|
|
|
$strforum = get_string('modulename','forum');
|
|
$strnumunread = get_string('overviewnumunread','forum');
|
|
$strnumpostssince = get_string('overviewnumpostssince','forum');
|
|
|
|
foreach ($forums as $forum) {
|
|
$str = '';
|
|
$count = 0;
|
|
$thisunread = 0;
|
|
$showunread = false;
|
|
// either we have something from logs, or trackposts, or nothing.
|
|
if (array_key_exists($forum->id, $new) && !empty($new[$forum->id])) {
|
|
$count = $new[$forum->id]->count;
|
|
}
|
|
if (array_key_exists($forum->id,$unread)) {
|
|
$thisunread = $unread[$forum->id]->count;
|
|
$showunread = true;
|
|
}
|
|
if ($count > 0 || $thisunread > 0) {
|
|
$str .= '<div class="overview forum"><div class="name">'.$strforum.': <a title="'.$strforum.'" href="'.$CFG->wwwroot.'/mod/forum/view.php?f='.$forum->id.'">'.
|
|
$forum->name.'</a></div>';
|
|
$str .= '<div class="info"><span class="postsincelogin">';
|
|
$str .= $count.' '.$strnumpostssince."</span>";
|
|
if (!empty($showunread)) {
|
|
$str .= '<div class="unreadposts">'.$thisunread .' '.$strnumunread.'</div>';
|
|
}
|
|
$str .= '</div></div>';
|
|
}
|
|
if (!empty($str)) {
|
|
if (!array_key_exists($forum->course,$htmlarray)) {
|
|
$htmlarray[$forum->course] = array();
|
|
}
|
|
if (!array_key_exists('forum',$htmlarray[$forum->course])) {
|
|
$htmlarray[$forum->course]['forum'] = ''; // initialize, avoid warnings
|
|
}
|
|
$htmlarray[$forum->course]['forum'] .= $str;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Given a course and a date, prints a summary of all the new
|
|
* messages posted in the course since that date
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
* @uses CONTEXT_MODULE
|
|
* @uses VISIBLEGROUPS
|
|
* @param object $course
|
|
* @param bool $viewfullnames capability
|
|
* @param int $timestart
|
|
* @return bool success
|
|
*/
|
|
function forum_print_recent_activity($course, $viewfullnames, $timestart) {
|
|
global $CFG, $USER, $DB, $OUTPUT;
|
|
|
|
// do not use log table if possible, it may be huge and is expensive to join with other tables
|
|
|
|
if (!$posts = $DB->get_records_sql("SELECT p.*, f.type AS forumtype, d.forum, d.groupid,
|
|
d.timestart, d.timeend, d.userid AS duserid,
|
|
u.firstname, u.lastname, u.email, u.picture
|
|
FROM {forum_posts} p
|
|
JOIN {forum_discussions} d ON d.id = p.discussion
|
|
JOIN {forum} f ON f.id = d.forum
|
|
JOIN {user} u ON u.id = p.userid
|
|
WHERE p.created > ? AND f.course = ?
|
|
ORDER BY p.id ASC", array($timestart, $course->id))) { // order by initial posting date
|
|
return false;
|
|
}
|
|
|
|
$modinfo = get_fast_modinfo($course);
|
|
|
|
$groupmodes = array();
|
|
$cms = array();
|
|
|
|
$strftimerecent = get_string('strftimerecent');
|
|
|
|
$printposts = array();
|
|
foreach ($posts as $post) {
|
|
if (!isset($modinfo->instances['forum'][$post->forum])) {
|
|
// not visible
|
|
continue;
|
|
}
|
|
$cm = $modinfo->instances['forum'][$post->forum];
|
|
if (!$cm->uservisible) {
|
|
continue;
|
|
}
|
|
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
|
|
if (!has_capability('mod/forum:viewdiscussion', $context)) {
|
|
continue;
|
|
}
|
|
|
|
if (!empty($CFG->forum_enabletimedposts) and $USER->id != $post->duserid
|
|
and (($post->timestart > 0 and $post->timestart > time()) or ($post->timeend > 0 and $post->timeend < time()))) {
|
|
if (!has_capability('mod/forum:viewhiddentimedposts', $context)) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
$groupmode = groups_get_activity_groupmode($cm, $course);
|
|
|
|
if ($groupmode) {
|
|
if ($post->groupid == -1 or $groupmode == VISIBLEGROUPS or has_capability('moodle/site:accessallgroups', $context)) {
|
|
// oki (Open discussions have groupid -1)
|
|
} else {
|
|
// separate mode
|
|
if (isguestuser()) {
|
|
// shortcut
|
|
continue;
|
|
}
|
|
|
|
if (is_null($modinfo->groups)) {
|
|
$modinfo->groups = groups_get_user_groups($course->id); // load all my groups and cache it in modinfo
|
|
}
|
|
|
|
if (!array_key_exists($post->groupid, $modinfo->groups[0])) {
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
$printposts[] = $post;
|
|
}
|
|
unset($posts);
|
|
|
|
if (!$printposts) {
|
|
return false;
|
|
}
|
|
|
|
echo $OUTPUT->heading(get_string('newforumposts', 'forum').':', 3);
|
|
echo "\n<ul class='unlist'>\n";
|
|
|
|
foreach ($printposts as $post) {
|
|
$subjectclass = empty($post->parent) ? ' bold' : '';
|
|
|
|
echo '<li><div class="head">'.
|
|
'<div class="date">'.userdate($post->modified, $strftimerecent).'</div>'.
|
|
'<div class="name">'.fullname($post, $viewfullnames).'</div>'.
|
|
'</div>';
|
|
echo '<div class="info'.$subjectclass.'">';
|
|
if (empty($post->parent)) {
|
|
echo '"<a href="'.$CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.'">';
|
|
} else {
|
|
echo '"<a href="'.$CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.'&parent='.$post->parent.'#p'.$post->id.'">';
|
|
}
|
|
$post->subject = break_up_long_words(format_string($post->subject, true));
|
|
echo $post->subject;
|
|
echo "</a>\"</div></li>\n";
|
|
}
|
|
|
|
echo "</ul>\n";
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Return grade for given user or all users.
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param object $forum
|
|
* @param int $userid optional user id, 0 means all users
|
|
* @return array array of grades, false if none
|
|
*/
|
|
function forum_get_user_grades($forum, $userid = 0) {
|
|
global $CFG;
|
|
|
|
require_once($CFG->dirroot.'/rating/lib.php');
|
|
|
|
$ratingoptions = new stdClass;
|
|
$ratingoptions->component = 'mod_forum';
|
|
$ratingoptions->ratingarea = 'post';
|
|
|
|
//need these to work backwards to get a context id. Is there a better way to get contextid from a module instance?
|
|
$ratingoptions->modulename = 'forum';
|
|
$ratingoptions->moduleid = $forum->id;
|
|
$ratingoptions->userid = $userid;
|
|
$ratingoptions->aggregationmethod = $forum->assessed;
|
|
$ratingoptions->scaleid = $forum->scale;
|
|
$ratingoptions->itemtable = 'forum_posts';
|
|
$ratingoptions->itemtableusercolumn = 'userid';
|
|
|
|
$rm = new rating_manager();
|
|
return $rm->get_user_grades($ratingoptions);
|
|
}
|
|
|
|
/**
|
|
* Update activity grades
|
|
*
|
|
* @category grade
|
|
* @param object $forum
|
|
* @param int $userid specific user only, 0 means all
|
|
* @param boolean $nullifnone return null if grade does not exist
|
|
* @return void
|
|
*/
|
|
function forum_update_grades($forum, $userid=0, $nullifnone=true) {
|
|
global $CFG, $DB;
|
|
require_once($CFG->libdir.'/gradelib.php');
|
|
|
|
if (!$forum->assessed) {
|
|
forum_grade_item_update($forum);
|
|
|
|
} else if ($grades = forum_get_user_grades($forum, $userid)) {
|
|
forum_grade_item_update($forum, $grades);
|
|
|
|
} else if ($userid and $nullifnone) {
|
|
$grade = new stdClass();
|
|
$grade->userid = $userid;
|
|
$grade->rawgrade = NULL;
|
|
forum_grade_item_update($forum, $grade);
|
|
|
|
} else {
|
|
forum_grade_item_update($forum);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Update all grades in gradebook.
|
|
* @global object
|
|
*/
|
|
function forum_upgrade_grades() {
|
|
global $DB;
|
|
|
|
$sql = "SELECT COUNT('x')
|
|
FROM {forum} f, {course_modules} cm, {modules} m
|
|
WHERE m.name='forum' AND m.id=cm.module AND cm.instance=f.id";
|
|
$count = $DB->count_records_sql($sql);
|
|
|
|
$sql = "SELECT f.*, cm.idnumber AS cmidnumber, f.course AS courseid
|
|
FROM {forum} f, {course_modules} cm, {modules} m
|
|
WHERE m.name='forum' AND m.id=cm.module AND cm.instance=f.id";
|
|
$rs = $DB->get_recordset_sql($sql);
|
|
if ($rs->valid()) {
|
|
$pbar = new progress_bar('forumupgradegrades', 500, true);
|
|
$i=0;
|
|
foreach ($rs as $forum) {
|
|
$i++;
|
|
upgrade_set_timeout(60*5); // set up timeout, may also abort execution
|
|
forum_update_grades($forum, 0, false);
|
|
$pbar->update($i, $count, "Updating Forum grades ($i/$count).");
|
|
}
|
|
}
|
|
$rs->close();
|
|
}
|
|
|
|
/**
|
|
* Create/update grade item for given forum
|
|
*
|
|
* @category grade
|
|
* @uses GRADE_TYPE_NONE
|
|
* @uses GRADE_TYPE_VALUE
|
|
* @uses GRADE_TYPE_SCALE
|
|
* @param stdClass $forum Forum object with extra cmidnumber
|
|
* @param mixed $grades Optional array/object of grade(s); 'reset' means reset grades in gradebook
|
|
* @return int 0 if ok
|
|
*/
|
|
function forum_grade_item_update($forum, $grades=NULL) {
|
|
global $CFG;
|
|
if (!function_exists('grade_update')) { //workaround for buggy PHP versions
|
|
require_once($CFG->libdir.'/gradelib.php');
|
|
}
|
|
|
|
$params = array('itemname'=>$forum->name, 'idnumber'=>$forum->cmidnumber);
|
|
|
|
if (!$forum->assessed or $forum->scale == 0) {
|
|
$params['gradetype'] = GRADE_TYPE_NONE;
|
|
|
|
} else if ($forum->scale > 0) {
|
|
$params['gradetype'] = GRADE_TYPE_VALUE;
|
|
$params['grademax'] = $forum->scale;
|
|
$params['grademin'] = 0;
|
|
|
|
} else if ($forum->scale < 0) {
|
|
$params['gradetype'] = GRADE_TYPE_SCALE;
|
|
$params['scaleid'] = -$forum->scale;
|
|
}
|
|
|
|
if ($grades === 'reset') {
|
|
$params['reset'] = true;
|
|
$grades = NULL;
|
|
}
|
|
|
|
return grade_update('mod/forum', $forum->course, 'mod', 'forum', $forum->id, 0, $grades, $params);
|
|
}
|
|
|
|
/**
|
|
* Delete grade item for given forum
|
|
*
|
|
* @category grade
|
|
* @param stdClass $forum Forum object
|
|
* @return grade_item
|
|
*/
|
|
function forum_grade_item_delete($forum) {
|
|
global $CFG;
|
|
require_once($CFG->libdir.'/gradelib.php');
|
|
|
|
return grade_update('mod/forum', $forum->course, 'mod', 'forum', $forum->id, 0, NULL, array('deleted'=>1));
|
|
}
|
|
|
|
|
|
/**
|
|
* Returns the users with data in one forum
|
|
* (users with records in forum_subscriptions, forum_posts, students)
|
|
*
|
|
* @todo: deprecated - to be deleted in 2.2
|
|
*
|
|
* @param int $forumid
|
|
* @return mixed array or false if none
|
|
*/
|
|
function forum_get_participants($forumid) {
|
|
|
|
global $CFG, $DB;
|
|
|
|
$params = array('forumid' => $forumid);
|
|
|
|
//Get students from forum_subscriptions
|
|
$sql = "SELECT DISTINCT u.id, u.id
|
|
FROM {user} u,
|
|
{forum_subscriptions} s
|
|
WHERE s.forum = :forumid AND
|
|
u.id = s.userid";
|
|
$st_subscriptions = $DB->get_records_sql($sql, $params);
|
|
|
|
//Get students from forum_posts
|
|
$sql = "SELECT DISTINCT u.id, u.id
|
|
FROM {user} u,
|
|
{forum_discussions} d,
|
|
{forum_posts} p
|
|
WHERE d.forum = :forumid AND
|
|
p.discussion = d.id AND
|
|
u.id = p.userid";
|
|
$st_posts = $DB->get_records_sql($sql, $params);
|
|
|
|
//Get students from the ratings table
|
|
$sql = "SELECT DISTINCT r.userid, r.userid AS id
|
|
FROM {forum_discussions} d
|
|
JOIN {forum_posts} p ON p.discussion = d.id
|
|
JOIN {rating} r on r.itemid = p.id
|
|
WHERE d.forum = :forumid AND
|
|
r.component = 'mod_forum' AND
|
|
r.ratingarea = 'post'";
|
|
$st_ratings = $DB->get_records_sql($sql, $params);
|
|
|
|
//Add st_posts to st_subscriptions
|
|
if ($st_posts) {
|
|
foreach ($st_posts as $st_post) {
|
|
$st_subscriptions[$st_post->id] = $st_post;
|
|
}
|
|
}
|
|
//Add st_ratings to st_subscriptions
|
|
if ($st_ratings) {
|
|
foreach ($st_ratings as $st_rating) {
|
|
$st_subscriptions[$st_rating->id] = $st_rating;
|
|
}
|
|
}
|
|
//Return st_subscriptions array (it contains an array of unique users)
|
|
return ($st_subscriptions);
|
|
}
|
|
|
|
/**
|
|
* This function returns if a scale is being used by one forum
|
|
*
|
|
* @global object
|
|
* @param int $forumid
|
|
* @param int $scaleid negative number
|
|
* @return bool
|
|
*/
|
|
function forum_scale_used ($forumid,$scaleid) {
|
|
global $DB;
|
|
$return = false;
|
|
|
|
$rec = $DB->get_record("forum",array("id" => "$forumid","scale" => "-$scaleid"));
|
|
|
|
if (!empty($rec) && !empty($scaleid)) {
|
|
$return = true;
|
|
}
|
|
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Checks if scale is being used by any instance of forum
|
|
*
|
|
* This is used to find out if scale used anywhere
|
|
*
|
|
* @global object
|
|
* @param $scaleid int
|
|
* @return boolean True if the scale is used by any forum
|
|
*/
|
|
function forum_scale_used_anywhere($scaleid) {
|
|
global $DB;
|
|
if ($scaleid and $DB->record_exists('forum', array('scale' => -$scaleid))) {
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// SQL FUNCTIONS ///////////////////////////////////////////////////////////
|
|
|
|
/**
|
|
* Gets a post with all info ready for forum_print_post
|
|
* Most of these joins are just to get the forum id
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param int $postid
|
|
* @return mixed array of posts or false
|
|
*/
|
|
function forum_get_post_full($postid) {
|
|
global $CFG, $DB;
|
|
|
|
return $DB->get_record_sql("SELECT p.*, d.forum, u.firstname, u.lastname, u.email, u.picture, u.imagealt
|
|
FROM {forum_posts} p
|
|
JOIN {forum_discussions} d ON p.discussion = d.id
|
|
LEFT JOIN {user} u ON p.userid = u.id
|
|
WHERE p.id = ?", array($postid));
|
|
}
|
|
|
|
/**
|
|
* Gets posts with all info ready for forum_print_post
|
|
* We pass forumid in because we always know it so no need to make a
|
|
* complicated join to find it out.
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @return mixed array of posts or false
|
|
*/
|
|
function forum_get_discussion_posts($discussion, $sort, $forumid) {
|
|
global $CFG, $DB;
|
|
|
|
return $DB->get_records_sql("SELECT p.*, $forumid AS forum, u.firstname, u.lastname, u.email, u.picture, u.imagealt
|
|
FROM {forum_posts} p
|
|
LEFT JOIN {user} u ON p.userid = u.id
|
|
WHERE p.discussion = ?
|
|
AND p.parent > 0 $sort", array($discussion));
|
|
}
|
|
|
|
/**
|
|
* Gets all posts in discussion including top parent.
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
* @param int $discussionid
|
|
* @param string $sort
|
|
* @param bool $tracking does user track the forum?
|
|
* @return array of posts
|
|
*/
|
|
function forum_get_all_discussion_posts($discussionid, $sort, $tracking=false) {
|
|
global $CFG, $DB, $USER;
|
|
|
|
$tr_sel = "";
|
|
$tr_join = "";
|
|
$params = array();
|
|
|
|
if ($tracking) {
|
|
$now = time();
|
|
$cutoffdate = $now - ($CFG->forum_oldpostdays * 24 * 3600);
|
|
$tr_sel = ", fr.id AS postread";
|
|
$tr_join = "LEFT JOIN {forum_read} fr ON (fr.postid = p.id AND fr.userid = ?)";
|
|
$params[] = $USER->id;
|
|
}
|
|
|
|
$params[] = $discussionid;
|
|
if (!$posts = $DB->get_records_sql("SELECT p.*, u.firstname, u.lastname, u.email, u.picture, u.imagealt $tr_sel
|
|
FROM {forum_posts} p
|
|
LEFT JOIN {user} u ON p.userid = u.id
|
|
$tr_join
|
|
WHERE p.discussion = ?
|
|
ORDER BY $sort", $params)) {
|
|
return array();
|
|
}
|
|
|
|
foreach ($posts as $pid=>$p) {
|
|
if ($tracking) {
|
|
if (forum_tp_is_post_old($p)) {
|
|
$posts[$pid]->postread = true;
|
|
}
|
|
}
|
|
if (!$p->parent) {
|
|
continue;
|
|
}
|
|
if (!isset($posts[$p->parent])) {
|
|
continue; // parent does not exist??
|
|
}
|
|
if (!isset($posts[$p->parent]->children)) {
|
|
$posts[$p->parent]->children = array();
|
|
}
|
|
$posts[$p->parent]->children[$pid] =& $posts[$pid];
|
|
}
|
|
|
|
return $posts;
|
|
}
|
|
|
|
/**
|
|
* Gets posts with all info ready for forum_print_post
|
|
* We pass forumid in because we always know it so no need to make a
|
|
* complicated join to find it out.
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param int $parent
|
|
* @param int $forumid
|
|
* @return array
|
|
*/
|
|
function forum_get_child_posts($parent, $forumid) {
|
|
global $CFG, $DB;
|
|
|
|
return $DB->get_records_sql("SELECT p.*, $forumid AS forum, u.firstname, u.lastname, u.email, u.picture, u.imagealt
|
|
FROM {forum_posts} p
|
|
LEFT JOIN {user} u ON p.userid = u.id
|
|
WHERE p.parent = ?
|
|
ORDER BY p.created ASC", array($parent));
|
|
}
|
|
|
|
/**
|
|
* An array of forum objects that the user is allowed to read/search through.
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
* @param int $userid
|
|
* @param int $courseid if 0, we look for forums throughout the whole site.
|
|
* @return array of forum objects, or false if no matches
|
|
* Forum objects have the following attributes:
|
|
* id, type, course, cmid, cmvisible, cmgroupmode, accessallgroups,
|
|
* viewhiddentimedposts
|
|
*/
|
|
function forum_get_readable_forums($userid, $courseid=0) {
|
|
|
|
global $CFG, $DB, $USER;
|
|
require_once($CFG->dirroot.'/course/lib.php');
|
|
|
|
if (!$forummod = $DB->get_record('modules', array('name' => 'forum'))) {
|
|
print_error('notinstalled', 'forum');
|
|
}
|
|
|
|
if ($courseid) {
|
|
$courses = $DB->get_records('course', array('id' => $courseid));
|
|
} else {
|
|
// If no course is specified, then the user can see SITE + his courses.
|
|
$courses1 = $DB->get_records('course', array('id' => SITEID));
|
|
$courses2 = enrol_get_users_courses($userid, true, array('modinfo'));
|
|
$courses = array_merge($courses1, $courses2);
|
|
}
|
|
if (!$courses) {
|
|
return array();
|
|
}
|
|
|
|
$readableforums = array();
|
|
|
|
foreach ($courses as $course) {
|
|
|
|
$modinfo = get_fast_modinfo($course);
|
|
if (is_null($modinfo->groups)) {
|
|
$modinfo->groups = groups_get_user_groups($course->id, $userid);
|
|
}
|
|
|
|
if (empty($modinfo->instances['forum'])) {
|
|
// hmm, no forums?
|
|
continue;
|
|
}
|
|
|
|
$courseforums = $DB->get_records('forum', array('course' => $course->id));
|
|
|
|
foreach ($modinfo->instances['forum'] as $forumid => $cm) {
|
|
if (!$cm->uservisible or !isset($courseforums[$forumid])) {
|
|
continue;
|
|
}
|
|
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
$forum = $courseforums[$forumid];
|
|
$forum->context = $context;
|
|
$forum->cm = $cm;
|
|
|
|
if (!has_capability('mod/forum:viewdiscussion', $context)) {
|
|
continue;
|
|
}
|
|
|
|
/// group access
|
|
if (groups_get_activity_groupmode($cm, $course) == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $context)) {
|
|
if (is_null($modinfo->groups)) {
|
|
$modinfo->groups = groups_get_user_groups($course->id, $USER->id);
|
|
}
|
|
if (isset($modinfo->groups[$cm->groupingid])) {
|
|
$forum->onlygroups = $modinfo->groups[$cm->groupingid];
|
|
$forum->onlygroups[] = -1;
|
|
} else {
|
|
$forum->onlygroups = array(-1);
|
|
}
|
|
}
|
|
|
|
/// hidden timed discussions
|
|
$forum->viewhiddentimedposts = true;
|
|
if (!empty($CFG->forum_enabletimedposts)) {
|
|
if (!has_capability('mod/forum:viewhiddentimedposts', $context)) {
|
|
$forum->viewhiddentimedposts = false;
|
|
}
|
|
}
|
|
|
|
/// qanda access
|
|
if ($forum->type == 'qanda'
|
|
&& !has_capability('mod/forum:viewqandawithoutposting', $context)) {
|
|
|
|
// We need to check whether the user has posted in the qanda forum.
|
|
$forum->onlydiscussions = array(); // Holds discussion ids for the discussions
|
|
// the user is allowed to see in this forum.
|
|
if ($discussionspostedin = forum_discussions_user_has_posted_in($forum->id, $USER->id)) {
|
|
foreach ($discussionspostedin as $d) {
|
|
$forum->onlydiscussions[] = $d->id;
|
|
}
|
|
}
|
|
}
|
|
|
|
$readableforums[$forum->id] = $forum;
|
|
}
|
|
|
|
unset($modinfo);
|
|
|
|
} // End foreach $courses
|
|
|
|
return $readableforums;
|
|
}
|
|
|
|
/**
|
|
* Returns a list of posts found using an array of search terms.
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
* @param array $searchterms array of search terms, e.g. word +word -word
|
|
* @param int $courseid if 0, we search through the whole site
|
|
* @param int $limitfrom
|
|
* @param int $limitnum
|
|
* @param int &$totalcount
|
|
* @param string $extrasql
|
|
* @return array|bool Array of posts found or false
|
|
*/
|
|
function forum_search_posts($searchterms, $courseid=0, $limitfrom=0, $limitnum=50,
|
|
&$totalcount, $extrasql='') {
|
|
global $CFG, $DB, $USER;
|
|
require_once($CFG->libdir.'/searchlib.php');
|
|
|
|
$forums = forum_get_readable_forums($USER->id, $courseid);
|
|
|
|
if (count($forums) == 0) {
|
|
$totalcount = 0;
|
|
return false;
|
|
}
|
|
|
|
$now = round(time(), -2); // db friendly
|
|
|
|
$fullaccess = array();
|
|
$where = array();
|
|
$params = array();
|
|
|
|
foreach ($forums as $forumid => $forum) {
|
|
$select = array();
|
|
|
|
if (!$forum->viewhiddentimedposts) {
|
|
$select[] = "(d.userid = :userid{$forumid} OR (d.timestart < :timestart{$forumid} AND (d.timeend = 0 OR d.timeend > :timeend{$forumid})))";
|
|
$params = array_merge($params, array('userid'.$forumid=>$USER->id, 'timestart'.$forumid=>$now, 'timeend'.$forumid=>$now));
|
|
}
|
|
|
|
$cm = $forum->cm;
|
|
$context = $forum->context;
|
|
|
|
if ($forum->type == 'qanda'
|
|
&& !has_capability('mod/forum:viewqandawithoutposting', $context)) {
|
|
if (!empty($forum->onlydiscussions)) {
|
|
list($discussionid_sql, $discussionid_params) = $DB->get_in_or_equal($forum->onlydiscussions, SQL_PARAMS_NAMED, 'qanda'.$forumid.'_');
|
|
$params = array_merge($params, $discussionid_params);
|
|
$select[] = "(d.id $discussionid_sql OR p.parent = 0)";
|
|
} else {
|
|
$select[] = "p.parent = 0";
|
|
}
|
|
}
|
|
|
|
if (!empty($forum->onlygroups)) {
|
|
list($groupid_sql, $groupid_params) = $DB->get_in_or_equal($forum->onlygroups, SQL_PARAMS_NAMED, 'grps'.$forumid.'_');
|
|
$params = array_merge($params, $groupid_params);
|
|
$select[] = "d.groupid $groupid_sql";
|
|
}
|
|
|
|
if ($select) {
|
|
$selects = implode(" AND ", $select);
|
|
$where[] = "(d.forum = :forum{$forumid} AND $selects)";
|
|
$params['forum'.$forumid] = $forumid;
|
|
} else {
|
|
$fullaccess[] = $forumid;
|
|
}
|
|
}
|
|
|
|
if ($fullaccess) {
|
|
list($fullid_sql, $fullid_params) = $DB->get_in_or_equal($fullaccess, SQL_PARAMS_NAMED, 'fula');
|
|
$params = array_merge($params, $fullid_params);
|
|
$where[] = "(d.forum $fullid_sql)";
|
|
}
|
|
|
|
$selectdiscussion = "(".implode(" OR ", $where).")";
|
|
|
|
$messagesearch = '';
|
|
$searchstring = '';
|
|
|
|
// Need to concat these back together for parser to work.
|
|
foreach($searchterms as $searchterm){
|
|
if ($searchstring != '') {
|
|
$searchstring .= ' ';
|
|
}
|
|
$searchstring .= $searchterm;
|
|
}
|
|
|
|
// We need to allow quoted strings for the search. The quotes *should* be stripped
|
|
// by the parser, but this should be examined carefully for security implications.
|
|
$searchstring = str_replace("\\\"","\"",$searchstring);
|
|
$parser = new search_parser();
|
|
$lexer = new search_lexer($parser);
|
|
|
|
if ($lexer->parse($searchstring)) {
|
|
$parsearray = $parser->get_parsed_array();
|
|
// Experimental feature under 1.8! MDL-8830
|
|
// Use alternative text searches if defined
|
|
// This feature only works under mysql until properly implemented for other DBs
|
|
// Requires manual creation of text index for forum_posts before enabling it:
|
|
// CREATE FULLTEXT INDEX foru_post_tix ON [prefix]forum_posts (subject, message)
|
|
// Experimental feature under 1.8! MDL-8830
|
|
if (!empty($CFG->forum_usetextsearches)) {
|
|
list($messagesearch, $msparams) = search_generate_text_SQL($parsearray, 'p.message', 'p.subject',
|
|
'p.userid', 'u.id', 'u.firstname',
|
|
'u.lastname', 'p.modified', 'd.forum');
|
|
} else {
|
|
list($messagesearch, $msparams) = search_generate_SQL($parsearray, 'p.message', 'p.subject',
|
|
'p.userid', 'u.id', 'u.firstname',
|
|
'u.lastname', 'p.modified', 'd.forum');
|
|
}
|
|
$params = array_merge($params, $msparams);
|
|
}
|
|
|
|
$fromsql = "{forum_posts} p,
|
|
{forum_discussions} d,
|
|
{user} u";
|
|
|
|
$selectsql = " $messagesearch
|
|
AND p.discussion = d.id
|
|
AND p.userid = u.id
|
|
AND $selectdiscussion
|
|
$extrasql";
|
|
|
|
$countsql = "SELECT COUNT(*)
|
|
FROM $fromsql
|
|
WHERE $selectsql";
|
|
|
|
$searchsql = "SELECT p.*,
|
|
d.forum,
|
|
u.firstname,
|
|
u.lastname,
|
|
u.email,
|
|
u.picture,
|
|
u.imagealt,
|
|
u.email
|
|
FROM $fromsql
|
|
WHERE $selectsql
|
|
ORDER BY p.modified DESC";
|
|
|
|
$totalcount = $DB->count_records_sql($countsql, $params);
|
|
|
|
return $DB->get_records_sql($searchsql, $params, $limitfrom, $limitnum);
|
|
}
|
|
|
|
/**
|
|
* Returns a list of ratings for a particular post - sorted.
|
|
*
|
|
* TODO: Check if this function is actually used anywhere.
|
|
* Up until the fix for MDL-27471 this function wasn't even returning.
|
|
*
|
|
* @param stdClass $context
|
|
* @param int $postid
|
|
* @param string $sort
|
|
* @return array Array of ratings or false
|
|
*/
|
|
function forum_get_ratings($context, $postid, $sort = "u.firstname ASC") {
|
|
$options = new stdClass;
|
|
$options->context = $context;
|
|
$options->component = 'mod_forum';
|
|
$options->ratingarea = 'post';
|
|
$options->itemid = $postid;
|
|
$options->sort = "ORDER BY $sort";
|
|
|
|
$rm = new rating_manager();
|
|
return $rm->get_all_ratings_for_item($options);
|
|
}
|
|
|
|
/**
|
|
* Returns a list of all new posts that have not been mailed yet
|
|
*
|
|
* @param int $starttime posts created after this time
|
|
* @param int $endtime posts created before this
|
|
* @param int $now used for timed discussions only
|
|
* @return array
|
|
*/
|
|
function forum_get_unmailed_posts($starttime, $endtime, $now=null) {
|
|
global $CFG, $DB;
|
|
|
|
$params = array($starttime, $endtime);
|
|
if (!empty($CFG->forum_enabletimedposts)) {
|
|
if (empty($now)) {
|
|
$now = time();
|
|
}
|
|
$timedsql = "AND (d.timestart < ? AND (d.timeend = 0 OR d.timeend > ?))";
|
|
$params[] = $now;
|
|
$params[] = $now;
|
|
} else {
|
|
$timedsql = "";
|
|
}
|
|
|
|
return $DB->get_records_sql("SELECT p.*, d.course, d.forum
|
|
FROM {forum_posts} p
|
|
JOIN {forum_discussions} d ON d.id = p.discussion
|
|
WHERE p.mailed = 0
|
|
AND p.created >= ?
|
|
AND (p.created < ? OR p.mailnow = 1)
|
|
$timedsql
|
|
ORDER BY p.modified ASC", $params);
|
|
}
|
|
|
|
/**
|
|
* Marks posts before a certain time as being mailed already
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param int $endtime
|
|
* @param int $now Defaults to time()
|
|
* @return bool
|
|
*/
|
|
function forum_mark_old_posts_as_mailed($endtime, $now=null) {
|
|
global $CFG, $DB;
|
|
if (empty($now)) {
|
|
$now = time();
|
|
}
|
|
|
|
if (empty($CFG->forum_enabletimedposts)) {
|
|
return $DB->execute("UPDATE {forum_posts}
|
|
SET mailed = '1'
|
|
WHERE (created < ? OR mailnow = 1)
|
|
AND mailed = 0", array($endtime));
|
|
|
|
} else {
|
|
return $DB->execute("UPDATE {forum_posts}
|
|
SET mailed = '1'
|
|
WHERE discussion NOT IN (SELECT d.id
|
|
FROM {forum_discussions} d
|
|
WHERE d.timestart > ?)
|
|
AND (created < ? OR mailnow = 1)
|
|
AND mailed = 0", array($now, $endtime));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get all the posts for a user in a forum suitable for forum_print_post
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @uses CONTEXT_MODULE
|
|
* @return array
|
|
*/
|
|
function forum_get_user_posts($forumid, $userid) {
|
|
global $CFG, $DB;
|
|
|
|
$timedsql = "";
|
|
$params = array($forumid, $userid);
|
|
|
|
if (!empty($CFG->forum_enabletimedposts)) {
|
|
$cm = get_coursemodule_from_instance('forum', $forumid);
|
|
if (!has_capability('mod/forum:viewhiddentimedposts' , get_context_instance(CONTEXT_MODULE, $cm->id))) {
|
|
$now = time();
|
|
$timedsql = "AND (d.timestart < ? AND (d.timeend = 0 OR d.timeend > ?))";
|
|
$params[] = $now;
|
|
$params[] = $now;
|
|
}
|
|
}
|
|
|
|
return $DB->get_records_sql("SELECT p.*, d.forum, u.firstname, u.lastname, u.email, u.picture, u.imagealt
|
|
FROM {forum} f
|
|
JOIN {forum_discussions} d ON d.forum = f.id
|
|
JOIN {forum_posts} p ON p.discussion = d.id
|
|
JOIN {user} u ON u.id = p.userid
|
|
WHERE f.id = ?
|
|
AND p.userid = ?
|
|
$timedsql
|
|
ORDER BY p.modified ASC", $params);
|
|
}
|
|
|
|
/**
|
|
* Get all the discussions user participated in
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @uses CONTEXT_MODULE
|
|
* @param int $forumid
|
|
* @param int $userid
|
|
* @return array Array or false
|
|
*/
|
|
function forum_get_user_involved_discussions($forumid, $userid) {
|
|
global $CFG, $DB;
|
|
|
|
$timedsql = "";
|
|
$params = array($forumid, $userid);
|
|
if (!empty($CFG->forum_enabletimedposts)) {
|
|
$cm = get_coursemodule_from_instance('forum', $forumid);
|
|
if (!has_capability('mod/forum:viewhiddentimedposts' , get_context_instance(CONTEXT_MODULE, $cm->id))) {
|
|
$now = time();
|
|
$timedsql = "AND (d.timestart < ? AND (d.timeend = 0 OR d.timeend > ?))";
|
|
$params[] = $now;
|
|
$params[] = $now;
|
|
}
|
|
}
|
|
|
|
return $DB->get_records_sql("SELECT DISTINCT d.*
|
|
FROM {forum} f
|
|
JOIN {forum_discussions} d ON d.forum = f.id
|
|
JOIN {forum_posts} p ON p.discussion = d.id
|
|
WHERE f.id = ?
|
|
AND p.userid = ?
|
|
$timedsql", $params);
|
|
}
|
|
|
|
/**
|
|
* Get all the posts for a user in a forum suitable for forum_print_post
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param int $forumid
|
|
* @param int $userid
|
|
* @return array of counts or false
|
|
*/
|
|
function forum_count_user_posts($forumid, $userid) {
|
|
global $CFG, $DB;
|
|
|
|
$timedsql = "";
|
|
$params = array($forumid, $userid);
|
|
if (!empty($CFG->forum_enabletimedposts)) {
|
|
$cm = get_coursemodule_from_instance('forum', $forumid);
|
|
if (!has_capability('mod/forum:viewhiddentimedposts' , get_context_instance(CONTEXT_MODULE, $cm->id))) {
|
|
$now = time();
|
|
$timedsql = "AND (d.timestart < ? AND (d.timeend = 0 OR d.timeend > ?))";
|
|
$params[] = $now;
|
|
$params[] = $now;
|
|
}
|
|
}
|
|
|
|
return $DB->get_record_sql("SELECT COUNT(p.id) AS postcount, MAX(p.modified) AS lastpost
|
|
FROM {forum} f
|
|
JOIN {forum_discussions} d ON d.forum = f.id
|
|
JOIN {forum_posts} p ON p.discussion = d.id
|
|
JOIN {user} u ON u.id = p.userid
|
|
WHERE f.id = ?
|
|
AND p.userid = ?
|
|
$timedsql", $params);
|
|
}
|
|
|
|
/**
|
|
* Given a log entry, return the forum post details for it.
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param object $log
|
|
* @return array|null
|
|
*/
|
|
function forum_get_post_from_log($log) {
|
|
global $CFG, $DB;
|
|
|
|
if ($log->action == "add post") {
|
|
|
|
return $DB->get_record_sql("SELECT p.*, f.type AS forumtype, d.forum, d.groupid,
|
|
u.firstname, u.lastname, u.email, u.picture
|
|
FROM {forum_discussions} d,
|
|
{forum_posts} p,
|
|
{forum} f,
|
|
{user} u
|
|
WHERE p.id = ?
|
|
AND d.id = p.discussion
|
|
AND p.userid = u.id
|
|
AND u.deleted <> '1'
|
|
AND f.id = d.forum", array($log->info));
|
|
|
|
|
|
} else if ($log->action == "add discussion") {
|
|
|
|
return $DB->get_record_sql("SELECT p.*, f.type AS forumtype, d.forum, d.groupid,
|
|
u.firstname, u.lastname, u.email, u.picture
|
|
FROM {forum_discussions} d,
|
|
{forum_posts} p,
|
|
{forum} f,
|
|
{user} u
|
|
WHERE d.id = ?
|
|
AND d.firstpost = p.id
|
|
AND p.userid = u.id
|
|
AND u.deleted <> '1'
|
|
AND f.id = d.forum", array($log->info));
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Given a discussion id, return the first post from the discussion
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param int $dicsussionid
|
|
* @return array
|
|
*/
|
|
function forum_get_firstpost_from_discussion($discussionid) {
|
|
global $CFG, $DB;
|
|
|
|
return $DB->get_record_sql("SELECT p.*
|
|
FROM {forum_discussions} d,
|
|
{forum_posts} p
|
|
WHERE d.id = ?
|
|
AND d.firstpost = p.id ", array($discussionid));
|
|
}
|
|
|
|
/**
|
|
* Returns an array of counts of replies to each discussion
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param int $forumid
|
|
* @param string $forumsort
|
|
* @param int $limit
|
|
* @param int $page
|
|
* @param int $perpage
|
|
* @return array
|
|
*/
|
|
function forum_count_discussion_replies($forumid, $forumsort="", $limit=-1, $page=-1, $perpage=0) {
|
|
global $CFG, $DB;
|
|
|
|
if ($limit > 0) {
|
|
$limitfrom = 0;
|
|
$limitnum = $limit;
|
|
} else if ($page != -1) {
|
|
$limitfrom = $page*$perpage;
|
|
$limitnum = $perpage;
|
|
} else {
|
|
$limitfrom = 0;
|
|
$limitnum = 0;
|
|
}
|
|
|
|
if ($forumsort == "") {
|
|
$orderby = "";
|
|
$groupby = "";
|
|
|
|
} else {
|
|
$orderby = "ORDER BY $forumsort";
|
|
$groupby = ", ".strtolower($forumsort);
|
|
$groupby = str_replace('desc', '', $groupby);
|
|
$groupby = str_replace('asc', '', $groupby);
|
|
}
|
|
|
|
if (($limitfrom == 0 and $limitnum == 0) or $forumsort == "") {
|
|
$sql = "SELECT p.discussion, COUNT(p.id) AS replies, MAX(p.id) AS lastpostid
|
|
FROM {forum_posts} p
|
|
JOIN {forum_discussions} d ON p.discussion = d.id
|
|
WHERE p.parent > 0 AND d.forum = ?
|
|
GROUP BY p.discussion";
|
|
return $DB->get_records_sql($sql, array($forumid));
|
|
|
|
} else {
|
|
$sql = "SELECT p.discussion, (COUNT(p.id) - 1) AS replies, MAX(p.id) AS lastpostid
|
|
FROM {forum_posts} p
|
|
JOIN {forum_discussions} d ON p.discussion = d.id
|
|
WHERE d.forum = ?
|
|
GROUP BY p.discussion $groupby
|
|
$orderby";
|
|
return $DB->get_records_sql("SELECT * FROM ($sql) sq", array($forumid), $limitfrom, $limitnum);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
* @staticvar array $cache
|
|
* @param object $forum
|
|
* @param object $cm
|
|
* @param object $course
|
|
* @return mixed
|
|
*/
|
|
function forum_count_discussions($forum, $cm, $course) {
|
|
global $CFG, $DB, $USER;
|
|
|
|
static $cache = array();
|
|
|
|
$now = round(time(), -2); // db cache friendliness
|
|
|
|
$params = array($course->id);
|
|
|
|
if (!isset($cache[$course->id])) {
|
|
if (!empty($CFG->forum_enabletimedposts)) {
|
|
$timedsql = "AND d.timestart < ? AND (d.timeend = 0 OR d.timeend > ?)";
|
|
$params[] = $now;
|
|
$params[] = $now;
|
|
} else {
|
|
$timedsql = "";
|
|
}
|
|
|
|
$sql = "SELECT f.id, COUNT(d.id) as dcount
|
|
FROM {forum} f
|
|
JOIN {forum_discussions} d ON d.forum = f.id
|
|
WHERE f.course = ?
|
|
$timedsql
|
|
GROUP BY f.id";
|
|
|
|
if ($counts = $DB->get_records_sql($sql, $params)) {
|
|
foreach ($counts as $count) {
|
|
$counts[$count->id] = $count->dcount;
|
|
}
|
|
$cache[$course->id] = $counts;
|
|
} else {
|
|
$cache[$course->id] = array();
|
|
}
|
|
}
|
|
|
|
if (empty($cache[$course->id][$forum->id])) {
|
|
return 0;
|
|
}
|
|
|
|
$groupmode = groups_get_activity_groupmode($cm, $course);
|
|
|
|
if ($groupmode != SEPARATEGROUPS) {
|
|
return $cache[$course->id][$forum->id];
|
|
}
|
|
|
|
if (has_capability('moodle/site:accessallgroups', get_context_instance(CONTEXT_MODULE, $cm->id))) {
|
|
return $cache[$course->id][$forum->id];
|
|
}
|
|
|
|
require_once($CFG->dirroot.'/course/lib.php');
|
|
|
|
$modinfo = get_fast_modinfo($course);
|
|
if (is_null($modinfo->groups)) {
|
|
$modinfo->groups = groups_get_user_groups($course->id, $USER->id);
|
|
}
|
|
|
|
if (array_key_exists($cm->groupingid, $modinfo->groups)) {
|
|
$mygroups = $modinfo->groups[$cm->groupingid];
|
|
} else {
|
|
$mygroups = false; // Will be set below
|
|
}
|
|
|
|
// add all groups posts
|
|
if (empty($mygroups)) {
|
|
$mygroups = array(-1=>-1);
|
|
} else {
|
|
$mygroups[-1] = -1;
|
|
}
|
|
|
|
list($mygroups_sql, $params) = $DB->get_in_or_equal($mygroups);
|
|
$params[] = $forum->id;
|
|
|
|
if (!empty($CFG->forum_enabletimedposts)) {
|
|
$timedsql = "AND d.timestart < $now AND (d.timeend = 0 OR d.timeend > $now)";
|
|
$params[] = $now;
|
|
$params[] = $now;
|
|
} else {
|
|
$timedsql = "";
|
|
}
|
|
|
|
$sql = "SELECT COUNT(d.id)
|
|
FROM {forum_discussions} d
|
|
WHERE d.groupid $mygroups_sql AND d.forum = ?
|
|
$timedsql";
|
|
|
|
return $DB->get_field_sql($sql, $params);
|
|
}
|
|
|
|
/**
|
|
* How many posts by other users are unrated by a given user in the given discussion?
|
|
*
|
|
* TODO: Is this function still used anywhere?
|
|
*
|
|
* @param int $discussionid
|
|
* @param int $userid
|
|
* @return mixed
|
|
*/
|
|
function forum_count_unrated_posts($discussionid, $userid) {
|
|
global $CFG, $DB;
|
|
|
|
$sql = "SELECT COUNT(*) as num
|
|
FROM {forum_posts}
|
|
WHERE parent > 0
|
|
AND discussion = :discussionid
|
|
AND userid <> :userid";
|
|
$params = array('discussionid' => $discussionid, 'userid' => $userid);
|
|
$posts = $DB->get_record_sql($sql, $params);
|
|
if ($posts) {
|
|
$sql = "SELECT count(*) as num
|
|
FROM {forum_posts} p,
|
|
{rating} r
|
|
WHERE p.discussion = :discussionid AND
|
|
p.id = r.itemid AND
|
|
r.userid = userid AND
|
|
r.component = 'mod_forum' AND
|
|
r.ratingarea = 'post'";
|
|
$rated = $DB->get_record_sql($sql, $params);
|
|
if ($rated) {
|
|
if ($posts->num > $rated->num) {
|
|
return $posts->num - $rated->num;
|
|
} else {
|
|
return 0; // Just in case there was a counting error
|
|
}
|
|
} else {
|
|
return $posts->num;
|
|
}
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get all discussions in a forum
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
* @uses CONTEXT_MODULE
|
|
* @uses VISIBLEGROUPS
|
|
* @param object $cm
|
|
* @param string $forumsort
|
|
* @param bool $fullpost
|
|
* @param int $unused
|
|
* @param int $limit
|
|
* @param bool $userlastmodified
|
|
* @param int $page
|
|
* @param int $perpage
|
|
* @return array
|
|
*/
|
|
function forum_get_discussions($cm, $forumsort="d.timemodified DESC", $fullpost=true, $unused=-1, $limit=-1, $userlastmodified=false, $page=-1, $perpage=0) {
|
|
global $CFG, $DB, $USER;
|
|
|
|
$timelimit = '';
|
|
|
|
$now = round(time(), -2);
|
|
$params = array($cm->instance);
|
|
|
|
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
|
|
if (!has_capability('mod/forum:viewdiscussion', $modcontext)) { /// User must have perms to view discussions
|
|
return array();
|
|
}
|
|
|
|
if (!empty($CFG->forum_enabletimedposts)) { /// Users must fulfill timed posts
|
|
|
|
if (!has_capability('mod/forum:viewhiddentimedposts', $modcontext)) {
|
|
$timelimit = " AND ((d.timestart <= ? AND (d.timeend = 0 OR d.timeend > ?))";
|
|
$params[] = $now;
|
|
$params[] = $now;
|
|
if (isloggedin()) {
|
|
$timelimit .= " OR d.userid = ?";
|
|
$params[] = $USER->id;
|
|
}
|
|
$timelimit .= ")";
|
|
}
|
|
}
|
|
|
|
if ($limit > 0) {
|
|
$limitfrom = 0;
|
|
$limitnum = $limit;
|
|
} else if ($page != -1) {
|
|
$limitfrom = $page*$perpage;
|
|
$limitnum = $perpage;
|
|
} else {
|
|
$limitfrom = 0;
|
|
$limitnum = 0;
|
|
}
|
|
|
|
$groupmode = groups_get_activity_groupmode($cm);
|
|
$currentgroup = groups_get_activity_group($cm);
|
|
|
|
if ($groupmode) {
|
|
if (empty($modcontext)) {
|
|
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
}
|
|
|
|
if ($groupmode == VISIBLEGROUPS or has_capability('moodle/site:accessallgroups', $modcontext)) {
|
|
if ($currentgroup) {
|
|
$groupselect = "AND (d.groupid = ? OR d.groupid = -1)";
|
|
$params[] = $currentgroup;
|
|
} else {
|
|
$groupselect = "";
|
|
}
|
|
|
|
} else {
|
|
//seprate groups without access all
|
|
if ($currentgroup) {
|
|
$groupselect = "AND (d.groupid = ? OR d.groupid = -1)";
|
|
$params[] = $currentgroup;
|
|
} else {
|
|
$groupselect = "AND d.groupid = -1";
|
|
}
|
|
}
|
|
} else {
|
|
$groupselect = "";
|
|
}
|
|
|
|
|
|
if (empty($forumsort)) {
|
|
$forumsort = "d.timemodified DESC";
|
|
}
|
|
if (empty($fullpost)) {
|
|
$postdata = "p.id,p.subject,p.modified,p.discussion,p.userid";
|
|
} else {
|
|
$postdata = "p.*";
|
|
}
|
|
|
|
if (empty($userlastmodified)) { // We don't need to know this
|
|
$umfields = "";
|
|
$umtable = "";
|
|
} else {
|
|
$umfields = ", um.firstname AS umfirstname, um.lastname AS umlastname";
|
|
$umtable = " LEFT JOIN {user} um ON (d.usermodified = um.id)";
|
|
}
|
|
|
|
$sql = "SELECT $postdata, d.name, d.timemodified, d.usermodified, d.groupid, d.timestart, d.timeend,
|
|
u.firstname, u.lastname, u.email, u.picture, u.imagealt $umfields
|
|
FROM {forum_discussions} d
|
|
JOIN {forum_posts} p ON p.discussion = d.id
|
|
JOIN {user} u ON p.userid = u.id
|
|
$umtable
|
|
WHERE d.forum = ? AND p.parent = 0
|
|
$timelimit $groupselect
|
|
ORDER BY $forumsort";
|
|
return $DB->get_records_sql($sql, $params, $limitfrom, $limitnum);
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
* @uses CONTEXT_MODULE
|
|
* @uses VISIBLEGROUPS
|
|
* @param object $cm
|
|
* @return array
|
|
*/
|
|
function forum_get_discussions_unread($cm) {
|
|
global $CFG, $DB, $USER;
|
|
|
|
$now = round(time(), -2);
|
|
$cutoffdate = $now - ($CFG->forum_oldpostdays*24*60*60);
|
|
|
|
$params = array();
|
|
$groupmode = groups_get_activity_groupmode($cm);
|
|
$currentgroup = groups_get_activity_group($cm);
|
|
|
|
if ($groupmode) {
|
|
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
|
|
if ($groupmode == VISIBLEGROUPS or has_capability('moodle/site:accessallgroups', $modcontext)) {
|
|
if ($currentgroup) {
|
|
$groupselect = "AND (d.groupid = :currentgroup OR d.groupid = -1)";
|
|
$params['currentgroup'] = $currentgroup;
|
|
} else {
|
|
$groupselect = "";
|
|
}
|
|
|
|
} else {
|
|
//separate groups without access all
|
|
if ($currentgroup) {
|
|
$groupselect = "AND (d.groupid = :currentgroup OR d.groupid = -1)";
|
|
$params['currentgroup'] = $currentgroup;
|
|
} else {
|
|
$groupselect = "AND d.groupid = -1";
|
|
}
|
|
}
|
|
} else {
|
|
$groupselect = "";
|
|
}
|
|
|
|
if (!empty($CFG->forum_enabletimedposts)) {
|
|
$timedsql = "AND d.timestart < :now1 AND (d.timeend = 0 OR d.timeend > :now2)";
|
|
$params['now1'] = $now;
|
|
$params['now2'] = $now;
|
|
} else {
|
|
$timedsql = "";
|
|
}
|
|
|
|
$sql = "SELECT d.id, COUNT(p.id) AS unread
|
|
FROM {forum_discussions} d
|
|
JOIN {forum_posts} p ON p.discussion = d.id
|
|
LEFT JOIN {forum_read} r ON (r.postid = p.id AND r.userid = $USER->id)
|
|
WHERE d.forum = {$cm->instance}
|
|
AND p.modified >= :cutoffdate AND r.id is NULL
|
|
$groupselect
|
|
$timedsql
|
|
GROUP BY d.id";
|
|
$params['cutoffdate'] = $cutoffdate;
|
|
|
|
if ($unreads = $DB->get_records_sql($sql, $params)) {
|
|
foreach ($unreads as $unread) {
|
|
$unreads[$unread->id] = $unread->unread;
|
|
}
|
|
return $unreads;
|
|
} else {
|
|
return array();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
* @uses CONEXT_MODULE
|
|
* @uses VISIBLEGROUPS
|
|
* @param object $cm
|
|
* @return array
|
|
*/
|
|
function forum_get_discussions_count($cm) {
|
|
global $CFG, $DB, $USER;
|
|
|
|
$now = round(time(), -2);
|
|
$params = array($cm->instance);
|
|
$groupmode = groups_get_activity_groupmode($cm);
|
|
$currentgroup = groups_get_activity_group($cm);
|
|
|
|
if ($groupmode) {
|
|
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
|
|
if ($groupmode == VISIBLEGROUPS or has_capability('moodle/site:accessallgroups', $modcontext)) {
|
|
if ($currentgroup) {
|
|
$groupselect = "AND (d.groupid = ? OR d.groupid = -1)";
|
|
$params[] = $currentgroup;
|
|
} else {
|
|
$groupselect = "";
|
|
}
|
|
|
|
} else {
|
|
//seprate groups without access all
|
|
if ($currentgroup) {
|
|
$groupselect = "AND (d.groupid = ? OR d.groupid = -1)";
|
|
$params[] = $currentgroup;
|
|
} else {
|
|
$groupselect = "AND d.groupid = -1";
|
|
}
|
|
}
|
|
} else {
|
|
$groupselect = "";
|
|
}
|
|
|
|
$cutoffdate = $now - ($CFG->forum_oldpostdays*24*60*60);
|
|
|
|
$timelimit = "";
|
|
|
|
if (!empty($CFG->forum_enabletimedposts)) {
|
|
|
|
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
|
|
if (!has_capability('mod/forum:viewhiddentimedposts', $modcontext)) {
|
|
$timelimit = " AND ((d.timestart <= ? AND (d.timeend = 0 OR d.timeend > ?))";
|
|
$params[] = $now;
|
|
$params[] = $now;
|
|
if (isloggedin()) {
|
|
$timelimit .= " OR d.userid = ?";
|
|
$params[] = $USER->id;
|
|
}
|
|
$timelimit .= ")";
|
|
}
|
|
}
|
|
|
|
$sql = "SELECT COUNT(d.id)
|
|
FROM {forum_discussions} d
|
|
JOIN {forum_posts} p ON p.discussion = d.id
|
|
WHERE d.forum = ? AND p.parent = 0
|
|
$groupselect $timelimit";
|
|
|
|
return $DB->get_field_sql($sql, $params);
|
|
}
|
|
|
|
|
|
/**
|
|
* Get all discussions started by a particular user in a course (or group)
|
|
* This function no longer used ...
|
|
*
|
|
* @todo Remove this function if no longer used
|
|
* @global object
|
|
* @global object
|
|
* @param int $courseid
|
|
* @param int $userid
|
|
* @param int $groupid
|
|
* @return array
|
|
*/
|
|
function forum_get_user_discussions($courseid, $userid, $groupid=0) {
|
|
global $CFG, $DB;
|
|
$params = array($courseid, $userid);
|
|
if ($groupid) {
|
|
$groupselect = " AND d.groupid = ? ";
|
|
$params[] = $groupid;
|
|
} else {
|
|
$groupselect = "";
|
|
}
|
|
|
|
return $DB->get_records_sql("SELECT p.*, d.groupid, u.firstname, u.lastname, u.email, u.picture, u.imagealt,
|
|
f.type as forumtype, f.name as forumname, f.id as forumid
|
|
FROM {forum_discussions} d,
|
|
{forum_posts} p,
|
|
{user} u,
|
|
{forum} f
|
|
WHERE d.course = ?
|
|
AND p.discussion = d.id
|
|
AND p.parent = 0
|
|
AND p.userid = u.id
|
|
AND u.id = ?
|
|
AND d.forum = f.id $groupselect
|
|
ORDER BY p.created DESC", $params);
|
|
}
|
|
|
|
/**
|
|
* Get the list of potential subscribers to a forum.
|
|
*
|
|
* @param object $forumcontext the forum context.
|
|
* @param integer $groupid the id of a group, or 0 for all groups.
|
|
* @param string $fields the list of fields to return for each user. As for get_users_by_capability.
|
|
* @param string $sort sort order. As for get_users_by_capability.
|
|
* @return array list of users.
|
|
*/
|
|
function forum_get_potential_subscribers($forumcontext, $groupid, $fields, $sort) {
|
|
global $DB;
|
|
|
|
// only active enrolled users or everybody on the frontpage
|
|
list($esql, $params) = get_enrolled_sql($forumcontext, '', $groupid, true);
|
|
|
|
$sql = "SELECT $fields
|
|
FROM {user} u
|
|
JOIN ($esql) je ON je.id = u.id";
|
|
if ($sort) {
|
|
$sql = "$sql ORDER BY $sort";
|
|
} else {
|
|
$sql = "$sql ORDER BY u.lastname ASC, u.firstname ASC";
|
|
}
|
|
|
|
return $DB->get_records_sql($sql, $params);
|
|
}
|
|
|
|
/**
|
|
* Returns list of user objects that are subscribed to this forum
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param object $course the course
|
|
* @param forum $forum the forum
|
|
* @param integer $groupid group id, or 0 for all.
|
|
* @param object $context the forum context, to save re-fetching it where possible.
|
|
* @param string $fields requested user fields (with "u." table prefix)
|
|
* @return array list of users.
|
|
*/
|
|
function forum_subscribed_users($course, $forum, $groupid=0, $context = null, $fields = null) {
|
|
global $CFG, $DB;
|
|
|
|
if (empty($fields)) {
|
|
$fields ="u.id,
|
|
u.username,
|
|
u.firstname,
|
|
u.lastname,
|
|
u.maildisplay,
|
|
u.mailformat,
|
|
u.maildigest,
|
|
u.imagealt,
|
|
u.email,
|
|
u.emailstop,
|
|
u.city,
|
|
u.country,
|
|
u.lastaccess,
|
|
u.lastlogin,
|
|
u.picture,
|
|
u.timezone,
|
|
u.theme,
|
|
u.lang,
|
|
u.trackforums,
|
|
u.mnethostid";
|
|
}
|
|
|
|
if (empty($context)) {
|
|
$cm = get_coursemodule_from_instance('forum', $forum->id, $course->id);
|
|
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
}
|
|
|
|
if (forum_is_forcesubscribed($forum)) {
|
|
$results = forum_get_potential_subscribers($context, $groupid, $fields, "u.email ASC");
|
|
|
|
} else {
|
|
// only active enrolled users or everybody on the frontpage
|
|
list($esql, $params) = get_enrolled_sql($context, '', $groupid, true);
|
|
$params['forumid'] = $forum->id;
|
|
$results = $DB->get_records_sql("SELECT $fields
|
|
FROM {user} u
|
|
JOIN ($esql) je ON je.id = u.id
|
|
JOIN {forum_subscriptions} s ON s.userid = u.id
|
|
WHERE s.forum = :forumid
|
|
ORDER BY u.email ASC", $params);
|
|
}
|
|
|
|
// Guest user should never be subscribed to a forum.
|
|
unset($results[$CFG->siteguest]);
|
|
|
|
return $results;
|
|
}
|
|
|
|
|
|
|
|
// OTHER FUNCTIONS ///////////////////////////////////////////////////////////
|
|
|
|
|
|
/**
|
|
* @global object
|
|
* @global object
|
|
* @param int $courseid
|
|
* @param string $type
|
|
*/
|
|
function forum_get_course_forum($courseid, $type) {
|
|
// How to set up special 1-per-course forums
|
|
global $CFG, $DB, $OUTPUT;
|
|
|
|
if ($forums = $DB->get_records_select("forum", "course = ? AND type = ?", array($courseid, $type), "id ASC")) {
|
|
// There should always only be ONE, but with the right combination of
|
|
// errors there might be more. In this case, just return the oldest one (lowest ID).
|
|
foreach ($forums as $forum) {
|
|
return $forum; // ie the first one
|
|
}
|
|
}
|
|
|
|
// Doesn't exist, so create one now.
|
|
$forum = new stdClass();
|
|
$forum->course = $courseid;
|
|
$forum->type = "$type";
|
|
switch ($forum->type) {
|
|
case "news":
|
|
$forum->name = get_string("namenews", "forum");
|
|
$forum->intro = get_string("intronews", "forum");
|
|
$forum->forcesubscribe = FORUM_FORCESUBSCRIBE;
|
|
$forum->assessed = 0;
|
|
if ($courseid == SITEID) {
|
|
$forum->name = get_string("sitenews");
|
|
$forum->forcesubscribe = 0;
|
|
}
|
|
break;
|
|
case "social":
|
|
$forum->name = get_string("namesocial", "forum");
|
|
$forum->intro = get_string("introsocial", "forum");
|
|
$forum->assessed = 0;
|
|
$forum->forcesubscribe = 0;
|
|
break;
|
|
case "blog":
|
|
$forum->name = get_string('blogforum', 'forum');
|
|
$forum->intro = get_string('introblog', 'forum');
|
|
$forum->assessed = 0;
|
|
$forum->forcesubscribe = 0;
|
|
break;
|
|
default:
|
|
echo $OUTPUT->notification("That forum type doesn't exist!");
|
|
return false;
|
|
break;
|
|
}
|
|
|
|
$forum->timemodified = time();
|
|
$forum->id = $DB->insert_record("forum", $forum);
|
|
|
|
if (! $module = $DB->get_record("modules", array("name" => "forum"))) {
|
|
echo $OUTPUT->notification("Could not find forum module!!");
|
|
return false;
|
|
}
|
|
$mod = new stdClass();
|
|
$mod->course = $courseid;
|
|
$mod->module = $module->id;
|
|
$mod->instance = $forum->id;
|
|
$mod->section = 0;
|
|
if (! $mod->coursemodule = add_course_module($mod) ) { // assumes course/lib.php is loaded
|
|
echo $OUTPUT->notification("Could not add a new course module to the course '" . $courseid . "'");
|
|
return false;
|
|
}
|
|
if (! $sectionid = add_mod_to_section($mod) ) { // assumes course/lib.php is loaded
|
|
echo $OUTPUT->notification("Could not add the new course module to that section");
|
|
return false;
|
|
}
|
|
$DB->set_field("course_modules", "section", $sectionid, array("id" => $mod->coursemodule));
|
|
|
|
include_once("$CFG->dirroot/course/lib.php");
|
|
rebuild_course_cache($courseid);
|
|
|
|
return $DB->get_record("forum", array("id" => "$forum->id"));
|
|
}
|
|
|
|
|
|
/**
|
|
* Given the data about a posting, builds up the HTML to display it and
|
|
* returns the HTML in a string. This is designed for sending via HTML email.
|
|
*
|
|
* @global object
|
|
* @param object $course
|
|
* @param object $cm
|
|
* @param object $forum
|
|
* @param object $discussion
|
|
* @param object $post
|
|
* @param object $userform
|
|
* @param object $userto
|
|
* @param bool $ownpost
|
|
* @param bool $reply
|
|
* @param bool $link
|
|
* @param bool $rate
|
|
* @param string $footer
|
|
* @return string
|
|
*/
|
|
function forum_make_mail_post($course, $cm, $forum, $discussion, $post, $userfrom, $userto,
|
|
$ownpost=false, $reply=false, $link=false, $rate=false, $footer="") {
|
|
|
|
global $CFG, $OUTPUT;
|
|
|
|
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
|
|
if (!isset($userto->viewfullnames[$forum->id])) {
|
|
$viewfullnames = has_capability('moodle/site:viewfullnames', $modcontext, $userto->id);
|
|
} else {
|
|
$viewfullnames = $userto->viewfullnames[$forum->id];
|
|
}
|
|
|
|
// add absolute file links
|
|
$post->message = file_rewrite_pluginfile_urls($post->message, 'pluginfile.php', $modcontext->id, 'mod_forum', 'post', $post->id);
|
|
|
|
// format the post body
|
|
$options = new stdClass();
|
|
$options->para = true;
|
|
$formattedtext = format_text($post->message, $post->messageformat, $options, $course->id);
|
|
|
|
$output = '<table border="0" cellpadding="3" cellspacing="0" class="forumpost">';
|
|
|
|
$output .= '<tr class="header"><td width="35" valign="top" class="picture left">';
|
|
$output .= $OUTPUT->user_picture($userfrom, array('courseid'=>$course->id));
|
|
$output .= '</td>';
|
|
|
|
if ($post->parent) {
|
|
$output .= '<td class="topic">';
|
|
} else {
|
|
$output .= '<td class="topic starter">';
|
|
}
|
|
$output .= '<div class="subject">'.format_string($post->subject).'</div>';
|
|
|
|
$fullname = fullname($userfrom, $viewfullnames);
|
|
$by = new stdClass();
|
|
$by->name = '<a href="'.$CFG->wwwroot.'/user/view.php?id='.$userfrom->id.'&course='.$course->id.'">'.$fullname.'</a>';
|
|
$by->date = userdate($post->modified, '', $userto->timezone);
|
|
$output .= '<div class="author">'.get_string('bynameondate', 'forum', $by).'</div>';
|
|
|
|
$output .= '</td></tr>';
|
|
|
|
$output .= '<tr><td class="left side" valign="top">';
|
|
|
|
if (isset($userfrom->groups)) {
|
|
$groups = $userfrom->groups[$forum->id];
|
|
} else {
|
|
$groups = groups_get_all_groups($course->id, $userfrom->id, $cm->groupingid);
|
|
}
|
|
|
|
if ($groups) {
|
|
$output .= print_group_picture($groups, $course->id, false, true, true);
|
|
} else {
|
|
$output .= ' ';
|
|
}
|
|
|
|
$output .= '</td><td class="content">';
|
|
|
|
$attachments = forum_print_attachments($post, $cm, 'html');
|
|
if ($attachments !== '') {
|
|
$output .= '<div class="attachments">';
|
|
$output .= $attachments;
|
|
$output .= '</div>';
|
|
}
|
|
|
|
$output .= $formattedtext;
|
|
|
|
// Commands
|
|
$commands = array();
|
|
|
|
if ($post->parent) {
|
|
$commands[] = '<a target="_blank" href="'.$CFG->wwwroot.'/mod/forum/discuss.php?d='.
|
|
$post->discussion.'&parent='.$post->parent.'">'.get_string('parent', 'forum').'</a>';
|
|
}
|
|
|
|
if ($reply) {
|
|
$commands[] = '<a target="_blank" href="'.$CFG->wwwroot.'/mod/forum/post.php?reply='.$post->id.'">'.
|
|
get_string('reply', 'forum').'</a>';
|
|
}
|
|
|
|
$output .= '<div class="commands">';
|
|
$output .= implode(' | ', $commands);
|
|
$output .= '</div>';
|
|
|
|
// Context link to post if required
|
|
if ($link) {
|
|
$output .= '<div class="link">';
|
|
$output .= '<a target="_blank" href="'.$CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.'#p'.$post->id.'">'.
|
|
get_string('postincontext', 'forum').'</a>';
|
|
$output .= '</div>';
|
|
}
|
|
|
|
if ($footer) {
|
|
$output .= '<div class="footer">'.$footer.'</div>';
|
|
}
|
|
$output .= '</td></tr></table>'."\n\n";
|
|
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Print a forum post
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @uses FORUM_MODE_THREADED
|
|
* @uses PORTFOLIO_FORMAT_PLAINHTML
|
|
* @uses PORTFOLIO_FORMAT_FILE
|
|
* @uses PORTFOLIO_FORMAT_RICHHTML
|
|
* @uses PORTFOLIO_ADD_TEXT_LINK
|
|
* @uses CONTEXT_MODULE
|
|
* @param object $post The post to print.
|
|
* @param object $discussion
|
|
* @param object $forum
|
|
* @param object $cm
|
|
* @param object $course
|
|
* @param boolean $ownpost Whether this post belongs to the current user.
|
|
* @param boolean $reply Whether to print a 'reply' link at the bottom of the message.
|
|
* @param boolean $link Just print a shortened version of the post as a link to the full post.
|
|
* @param string $footer Extra stuff to print after the message.
|
|
* @param string $highlight Space-separated list of terms to highlight.
|
|
* @param int $post_read true, false or -99. If we already know whether this user
|
|
* has read this post, pass that in, otherwise, pass in -99, and this
|
|
* function will work it out.
|
|
* @param boolean $dummyifcantsee When forum_user_can_see_post says that
|
|
* the current user can't see this post, if this argument is true
|
|
* (the default) then print a dummy 'you can't see this post' post.
|
|
* If false, don't output anything at all.
|
|
* @param bool|null $istracked
|
|
* @return void
|
|
*/
|
|
function forum_print_post($post, $discussion, $forum, &$cm, $course, $ownpost=false, $reply=false, $link=false,
|
|
$footer="", $highlight="", $postisread=null, $dummyifcantsee=true, $istracked=null, $return=false) {
|
|
global $USER, $CFG, $OUTPUT;
|
|
|
|
require_once($CFG->libdir . '/filelib.php');
|
|
|
|
// String cache
|
|
static $str;
|
|
|
|
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
|
|
$post->course = $course->id;
|
|
$post->forum = $forum->id;
|
|
$post->message = file_rewrite_pluginfile_urls($post->message, 'pluginfile.php', $modcontext->id, 'mod_forum', 'post', $post->id);
|
|
|
|
// caching
|
|
if (!isset($cm->cache)) {
|
|
$cm->cache = new stdClass;
|
|
}
|
|
|
|
if (!isset($cm->cache->caps)) {
|
|
$cm->cache->caps = array();
|
|
$cm->cache->caps['mod/forum:viewdiscussion'] = has_capability('mod/forum:viewdiscussion', $modcontext);
|
|
$cm->cache->caps['moodle/site:viewfullnames'] = has_capability('moodle/site:viewfullnames', $modcontext);
|
|
$cm->cache->caps['mod/forum:editanypost'] = has_capability('mod/forum:editanypost', $modcontext);
|
|
$cm->cache->caps['mod/forum:splitdiscussions'] = has_capability('mod/forum:splitdiscussions', $modcontext);
|
|
$cm->cache->caps['mod/forum:deleteownpost'] = has_capability('mod/forum:deleteownpost', $modcontext);
|
|
$cm->cache->caps['mod/forum:deleteanypost'] = has_capability('mod/forum:deleteanypost', $modcontext);
|
|
$cm->cache->caps['mod/forum:viewanyrating'] = has_capability('mod/forum:viewanyrating', $modcontext);
|
|
$cm->cache->caps['mod/forum:exportpost'] = has_capability('mod/forum:exportpost', $modcontext);
|
|
$cm->cache->caps['mod/forum:exportownpost'] = has_capability('mod/forum:exportownpost', $modcontext);
|
|
}
|
|
|
|
if (!isset($cm->uservisible)) {
|
|
$cm->uservisible = coursemodule_visible_for_user($cm);
|
|
}
|
|
|
|
if ($istracked && is_null($postisread)) {
|
|
$postisread = forum_tp_is_post_read($USER->id, $post);
|
|
}
|
|
|
|
if (!forum_user_can_see_post($forum, $discussion, $post, NULL, $cm)) {
|
|
$output = '';
|
|
if (!$dummyifcantsee) {
|
|
if ($return) {
|
|
return $output;
|
|
}
|
|
echo $output;
|
|
return;
|
|
}
|
|
$output .= html_writer::tag('a', '', array('id'=>'p'.$post->id));
|
|
$output .= html_writer::start_tag('div', array('class'=>'forumpost clearfix'));
|
|
$output .= html_writer::start_tag('div', array('class'=>'row header'));
|
|
$output .= html_writer::tag('div', '', array('class'=>'left picture')); // Picture
|
|
if ($post->parent) {
|
|
$output .= html_writer::start_tag('div', array('class'=>'topic'));
|
|
} else {
|
|
$output .= html_writer::start_tag('div', array('class'=>'topic starter'));
|
|
}
|
|
$output .= html_writer::tag('div', get_string('forumsubjecthidden','forum'), array('class'=>'subject')); // Subject
|
|
$output .= html_writer::tag('div', get_string('forumauthorhidden','forum'), array('class'=>'author')); // author
|
|
$output .= html_writer::end_tag('div');
|
|
$output .= html_writer::end_tag('div'); // row
|
|
$output .= html_writer::start_tag('div', array('class'=>'row'));
|
|
$output .= html_writer::tag('div', ' ', array('class'=>'left side')); // Groups
|
|
$output .= html_writer::tag('div', get_string('forumbodyhidden','forum'), array('class'=>'content')); // Content
|
|
$output .= html_writer::end_tag('div'); // row
|
|
$output .= html_writer::end_tag('div'); // forumpost
|
|
|
|
if ($return) {
|
|
return $output;
|
|
}
|
|
echo $output;
|
|
return;
|
|
}
|
|
|
|
if (empty($str)) {
|
|
$str = new stdClass;
|
|
$str->edit = get_string('edit', 'forum');
|
|
$str->delete = get_string('delete', 'forum');
|
|
$str->reply = get_string('reply', 'forum');
|
|
$str->parent = get_string('parent', 'forum');
|
|
$str->pruneheading = get_string('pruneheading', 'forum');
|
|
$str->prune = get_string('prune', 'forum');
|
|
$str->displaymode = get_user_preferences('forum_displaymode', $CFG->forum_displaymode);
|
|
$str->markread = get_string('markread', 'forum');
|
|
$str->markunread = get_string('markunread', 'forum');
|
|
}
|
|
|
|
$discussionlink = new moodle_url('/mod/forum/discuss.php', array('d'=>$post->discussion));
|
|
|
|
// Build an object that represents the posting user
|
|
$postuser = new stdClass;
|
|
$postuser->id = $post->userid;
|
|
$postuser->firstname = $post->firstname;
|
|
$postuser->lastname = $post->lastname;
|
|
$postuser->imagealt = $post->imagealt;
|
|
$postuser->picture = $post->picture;
|
|
$postuser->email = $post->email;
|
|
// Some handy things for later on
|
|
$postuser->fullname = fullname($postuser, $cm->cache->caps['moodle/site:viewfullnames']);
|
|
$postuser->profilelink = new moodle_url('/user/view.php', array('id'=>$post->userid, 'course'=>$course->id));
|
|
|
|
// Prepare the groups the posting user belongs to
|
|
if (isset($cm->cache->usersgroups)) {
|
|
$groups = array();
|
|
if (isset($cm->cache->usersgroups[$post->userid])) {
|
|
foreach ($cm->cache->usersgroups[$post->userid] as $gid) {
|
|
$groups[$gid] = $cm->cache->groups[$gid];
|
|
}
|
|
}
|
|
} else {
|
|
$groups = groups_get_all_groups($course->id, $post->userid, $cm->groupingid);
|
|
}
|
|
|
|
// Prepare the attachements for the post, files then images
|
|
list($attachments, $attachedimages) = forum_print_attachments($post, $cm, 'separateimages');
|
|
|
|
// Determine if we need to shorten this post
|
|
$shortenpost = ($link && (strlen(strip_tags($post->message)) > $CFG->forum_longpost));
|
|
|
|
|
|
// Prepare an array of commands
|
|
$commands = array();
|
|
|
|
// SPECIAL CASE: The front page can display a news item post to non-logged in users.
|
|
// Don't display the mark read / unread controls in this case.
|
|
if ($istracked && $CFG->forum_usermarksread && isloggedin()) {
|
|
$url = new moodle_url($discussionlink, array('postid'=>$post->id, 'mark'=>'unread'));
|
|
$text = $str->markunread;
|
|
if (!$postisread) {
|
|
$url->param('mark', 'read');
|
|
$text = $str->markread;
|
|
}
|
|
if ($str->displaymode == FORUM_MODE_THREADED) {
|
|
$url->param('parent', $post->parent);
|
|
} else {
|
|
$url->set_anchor('p'.$post->id);
|
|
}
|
|
$commands[] = array('url'=>$url, 'text'=>$text);
|
|
}
|
|
|
|
// Zoom in to the parent specifically
|
|
if ($post->parent) {
|
|
$url = new moodle_url($discussionlink);
|
|
if ($str->displaymode == FORUM_MODE_THREADED) {
|
|
$url->param('parent', $post->parent);
|
|
} else {
|
|
$url->set_anchor('p'.$post->parent);
|
|
}
|
|
$commands[] = array('url'=>$url, 'text'=>$str->parent);
|
|
}
|
|
|
|
// Hack for allow to edit news posts those are not displayed yet until they are displayed
|
|
$age = time() - $post->created;
|
|
if (!$post->parent && $forum->type == 'news' && $discussion->timestart > time()) {
|
|
$age = 0;
|
|
}
|
|
if (($ownpost && $age < $CFG->maxeditingtime) || $cm->cache->caps['mod/forum:editanypost']) {
|
|
$commands[] = array('url'=>new moodle_url('/mod/forum/post.php', array('edit'=>$post->id)), 'text'=>$str->edit);
|
|
}
|
|
|
|
if ($cm->cache->caps['mod/forum:splitdiscussions'] && $post->parent && $forum->type != 'single') {
|
|
$commands[] = array('url'=>new moodle_url('/mod/forum/post.php', array('prune'=>$post->id)), 'text'=>$str->prune, 'title'=>$str->pruneheading);
|
|
}
|
|
|
|
if (($ownpost && $age < $CFG->maxeditingtime && $cm->cache->caps['mod/forum:deleteownpost']) || $cm->cache->caps['mod/forum:deleteanypost']) {
|
|
$commands[] = array('url'=>new moodle_url('/mod/forum/post.php', array('delete'=>$post->id)), 'text'=>$str->delete);
|
|
}
|
|
|
|
if ($reply) {
|
|
$commands[] = array('url'=>new moodle_url('/mod/forum/post.php', array('reply'=>$post->id)), 'text'=>$str->reply);
|
|
}
|
|
|
|
if ($CFG->enableportfolios && ($cm->cache->caps['mod/forum:exportpost'] || ($ownpost && $cm->cache->caps['mod/forum:exportownpost']))) {
|
|
$p = array('postid' => $post->id);
|
|
require_once($CFG->libdir.'/portfoliolib.php');
|
|
$button = new portfolio_add_button();
|
|
$button->set_callback_options('forum_portfolio_caller', array('postid' => $post->id), '/mod/forum/locallib.php');
|
|
if (empty($attachments)) {
|
|
$button->set_formats(PORTFOLIO_FORMAT_PLAINHTML);
|
|
} else {
|
|
$button->set_formats(PORTFOLIO_FORMAT_RICHHTML);
|
|
}
|
|
|
|
$porfoliohtml = $button->to_html(PORTFOLIO_ADD_TEXT_LINK);
|
|
if (!empty($porfoliohtml)) {
|
|
$commands[] = $porfoliohtml;
|
|
}
|
|
}
|
|
// Finished building commands
|
|
|
|
|
|
// Begin output
|
|
|
|
$output = '';
|
|
|
|
if ($istracked) {
|
|
if ($postisread) {
|
|
$forumpostclass = ' read';
|
|
} else {
|
|
$forumpostclass = ' unread';
|
|
$output .= html_writer::tag('a', '', array('name'=>'unread'));
|
|
}
|
|
} else {
|
|
// ignore trackign status if not tracked or tracked param missing
|
|
$forumpostclass = '';
|
|
}
|
|
|
|
$topicclass = '';
|
|
if (empty($post->parent)) {
|
|
$topicclass = ' firstpost starter';
|
|
}
|
|
|
|
$output .= html_writer::tag('a', '', array('id'=>'p'.$post->id));
|
|
$output .= html_writer::start_tag('div', array('class'=>'forumpost clearfix'.$forumpostclass.$topicclass));
|
|
$output .= html_writer::start_tag('div', array('class'=>'row header clearfix'));
|
|
$output .= html_writer::start_tag('div', array('class'=>'left picture'));
|
|
$output .= $OUTPUT->user_picture($postuser, array('courseid'=>$course->id));
|
|
$output .= html_writer::end_tag('div');
|
|
|
|
|
|
$output .= html_writer::start_tag('div', array('class'=>'topic'.$topicclass));
|
|
|
|
$postsubject = $post->subject;
|
|
if (empty($post->subjectnoformat)) {
|
|
$postsubject = format_string($postsubject);
|
|
}
|
|
$output .= html_writer::tag('div', $postsubject, array('class'=>'subject'));
|
|
|
|
$by = new stdClass();
|
|
$by->name = html_writer::link($postuser->profilelink, $postuser->fullname);
|
|
$by->date = userdate($post->modified);
|
|
$output .= html_writer::tag('div', get_string('bynameondate', 'forum', $by), array('class'=>'author'));
|
|
|
|
$output .= html_writer::end_tag('div'); //topic
|
|
$output .= html_writer::end_tag('div'); //row
|
|
|
|
$output .= html_writer::start_tag('div', array('class'=>'row maincontent clearfix'));
|
|
$output .= html_writer::start_tag('div', array('class'=>'left'));
|
|
|
|
$groupoutput = '';
|
|
if ($groups) {
|
|
$groupoutput = print_group_picture($groups, $course->id, false, true, true);
|
|
}
|
|
if (empty($groupoutput)) {
|
|
$groupoutput = ' ';
|
|
}
|
|
$output .= html_writer::tag('div', $groupoutput, array('class'=>'grouppictures'));
|
|
|
|
$output .= html_writer::end_tag('div'); //left side
|
|
$output .= html_writer::start_tag('div', array('class'=>'no-overflow'));
|
|
$output .= html_writer::start_tag('div', array('class'=>'content'));
|
|
if (!empty($attachments)) {
|
|
$output .= html_writer::tag('div', $attachments, array('class'=>'attachments'));
|
|
}
|
|
|
|
$options = new stdClass;
|
|
$options->para = false;
|
|
$options->trusted = $post->messagetrust;
|
|
$options->context = $modcontext;
|
|
if ($shortenpost) {
|
|
// Prepare shortened version
|
|
$postclass = 'shortenedpost';
|
|
$postcontent = format_text(forum_shorten_post($post->message), $post->messageformat, $options, $course->id);
|
|
$postcontent .= html_writer::link($discussionlink, get_string('readtherest', 'forum'));
|
|
$postcontent .= html_writer::tag('span', '('.get_string('numwords', 'moodle', count_words(strip_tags($post->message))).')...', array('class'=>'post-word-count'));
|
|
} else {
|
|
// Prepare whole post
|
|
$postclass = 'fullpost';
|
|
$postcontent = format_text($post->message, $post->messageformat, $options, $course->id);
|
|
if (!empty($highlight)) {
|
|
$postcontent = highlight($highlight, $postcontent);
|
|
}
|
|
$postcontent .= html_writer::tag('div', $attachedimages, array('class'=>'attachedimages'));
|
|
}
|
|
// Output the post content
|
|
$output .= html_writer::tag('div', $postcontent, array('class'=>'posting '.$postclass));
|
|
$output .= html_writer::end_tag('div'); // Content
|
|
$output .= html_writer::end_tag('div'); // Content mask
|
|
$output .= html_writer::end_tag('div'); // Row
|
|
|
|
$output .= html_writer::start_tag('div', array('class'=>'row side'));
|
|
$output .= html_writer::tag('div',' ', array('class'=>'left'));
|
|
$output .= html_writer::start_tag('div', array('class'=>'options clearfix'));
|
|
|
|
// Output ratings
|
|
if (!empty($post->rating)) {
|
|
$output .= html_writer::tag('div', $OUTPUT->render($post->rating), array('class'=>'forum-post-rating'));
|
|
}
|
|
|
|
// Output the commands
|
|
$commandhtml = array();
|
|
foreach ($commands as $command) {
|
|
if (is_array($command)) {
|
|
$commandhtml[] = html_writer::link($command['url'], $command['text']);
|
|
} else {
|
|
$commandhtml[] = $command;
|
|
}
|
|
}
|
|
$output .= html_writer::tag('div', implode(' | ', $commandhtml), array('class'=>'commands'));
|
|
|
|
// Output link to post if required
|
|
if ($link) {
|
|
if ($post->replies == 1) {
|
|
$replystring = get_string('repliesone', 'forum', $post->replies);
|
|
} else {
|
|
$replystring = get_string('repliesmany', 'forum', $post->replies);
|
|
}
|
|
|
|
$output .= html_writer::start_tag('div', array('class'=>'link'));
|
|
$output .= html_writer::link($discussionlink, get_string('discussthistopic', 'forum'));
|
|
$output .= ' ('.$replystring.')';
|
|
$output .= html_writer::end_tag('div'); // link
|
|
}
|
|
|
|
// Output footer if required
|
|
if ($footer) {
|
|
$output .= html_writer::tag('div', $footer, array('class'=>'footer'));
|
|
}
|
|
|
|
// Close remaining open divs
|
|
$output .= html_writer::end_tag('div'); // content
|
|
$output .= html_writer::end_tag('div'); // row
|
|
$output .= html_writer::end_tag('div'); // forumpost
|
|
|
|
// Mark the forum post as read if required
|
|
if ($istracked && !$CFG->forum_usermarksread && !$postisread) {
|
|
forum_tp_mark_post_read($USER->id, $post, $forum->id);
|
|
}
|
|
|
|
if ($return) {
|
|
return $output;
|
|
}
|
|
echo $output;
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* Return rating related permissions
|
|
*
|
|
* @param string $options the context id
|
|
* @return array an associative array of the user's rating permissions
|
|
*/
|
|
function forum_rating_permissions($contextid, $component, $ratingarea) {
|
|
$context = get_context_instance_by_id($contextid, MUST_EXIST);
|
|
if ($component != 'mod_forum' || $ratingarea != 'post') {
|
|
// We don't know about this component/ratingarea so just return null to get the
|
|
// default restrictive permissions.
|
|
return null;
|
|
}
|
|
return array(
|
|
'view' => has_capability('mod/forum:viewrating', $context),
|
|
'viewany' => has_capability('mod/forum:viewanyrating', $context),
|
|
'viewall' => has_capability('mod/forum:viewallratings', $context),
|
|
'rate' => has_capability('mod/forum:rate', $context)
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Validates a submitted rating
|
|
* @param array $params submitted data
|
|
* context => object the context in which the rated items exists [required]
|
|
* component => The component for this module - should always be mod_forum [required]
|
|
* ratingarea => object the context in which the rated items exists [required]
|
|
* itemid => int the ID of the object being rated [required]
|
|
* scaleid => int the scale from which the user can select a rating. Used for bounds checking. [required]
|
|
* rating => int the submitted rating [required]
|
|
* rateduserid => int the id of the user whose items have been rated. NOT the user who submitted the ratings. 0 to update all. [required]
|
|
* aggregation => int the aggregation method to apply when calculating grades ie RATING_AGGREGATE_AVERAGE [required]
|
|
* @return boolean true if the rating is valid. Will throw rating_exception if not
|
|
*/
|
|
function forum_rating_validate($params) {
|
|
global $DB, $USER;
|
|
|
|
// Check the component is mod_forum
|
|
if ($params['component'] != 'mod_forum') {
|
|
throw new rating_exception('invalidcomponent');
|
|
}
|
|
|
|
// Check the ratingarea is post (the only rating area in forum)
|
|
if ($params['ratingarea'] != 'post') {
|
|
throw new rating_exception('invalidratingarea');
|
|
}
|
|
|
|
// Check the rateduserid is not the current user .. you can't rate your own posts
|
|
if ($params['rateduserid'] == $USER->id) {
|
|
throw new rating_exception('nopermissiontorate');
|
|
}
|
|
|
|
// Fetch all the related records ... we need to do this anyway to call forum_user_can_see_post
|
|
$post = $DB->get_record('forum_posts', array('id' => $params['itemid'], 'userid' => $params['rateduserid']), '*', MUST_EXIST);
|
|
$discussion = $DB->get_record('forum_discussions', array('id' => $post->discussion), '*', MUST_EXIST);
|
|
$forum = $DB->get_record('forum', array('id' => $discussion->forum), '*', MUST_EXIST);
|
|
$course = $DB->get_record('course', array('id' => $forum->course), '*', MUST_EXIST);
|
|
$cm = get_coursemodule_from_instance('forum', $forum->id, $course->id , false, MUST_EXIST);
|
|
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
|
|
// Make sure the context provided is the context of the forum
|
|
if ($context->id != $params['context']->id) {
|
|
throw new rating_exception('invalidcontext');
|
|
}
|
|
|
|
if ($forum->scale != $params['scaleid']) {
|
|
//the scale being submitted doesnt match the one in the database
|
|
throw new rating_exception('invalidscaleid');
|
|
}
|
|
|
|
// check the item we're rating was created in the assessable time window
|
|
if (!empty($forum->assesstimestart) && !empty($forum->assesstimefinish)) {
|
|
if ($post->created < $forum->assesstimestart || $post->created > $forum->assesstimefinish) {
|
|
throw new rating_exception('notavailable');
|
|
}
|
|
}
|
|
|
|
//check that the submitted rating is valid for the scale
|
|
|
|
// lower limit
|
|
if ($params['rating'] < 0 && $params['rating'] != RATING_UNSET_RATING) {
|
|
throw new rating_exception('invalidnum');
|
|
}
|
|
|
|
// upper limit
|
|
if ($forum->scale < 0) {
|
|
//its a custom scale
|
|
$scalerecord = $DB->get_record('scale', array('id' => -$forum->scale));
|
|
if ($scalerecord) {
|
|
$scalearray = explode(',', $scalerecord->scale);
|
|
if ($params['rating'] > count($scalearray)) {
|
|
throw new rating_exception('invalidnum');
|
|
}
|
|
} else {
|
|
throw new rating_exception('invalidscaleid');
|
|
}
|
|
} else if ($params['rating'] > $forum->scale) {
|
|
//if its numeric and submitted rating is above maximum
|
|
throw new rating_exception('invalidnum');
|
|
}
|
|
|
|
// Make sure groups allow this user to see the item they're rating
|
|
if ($discussion->groupid > 0 and $groupmode = groups_get_activity_groupmode($cm, $course)) { // Groups are being used
|
|
if (!groups_group_exists($discussion->groupid)) { // Can't find group
|
|
throw new rating_exception('cannotfindgroup');//something is wrong
|
|
}
|
|
|
|
if (!groups_is_member($discussion->groupid) and !has_capability('moodle/site:accessallgroups', $context)) {
|
|
// do not allow rating of posts from other groups when in SEPARATEGROUPS or VISIBLEGROUPS
|
|
throw new rating_exception('notmemberofgroup');
|
|
}
|
|
}
|
|
|
|
// perform some final capability checks
|
|
if (!forum_user_can_see_post($forum, $discussion, $post, $USER, $cm)) {
|
|
throw new rating_exception('nopermissiontorate');
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
/**
|
|
* This function prints the overview of a discussion in the forum listing.
|
|
* It needs some discussion information and some post information, these
|
|
* happen to be combined for efficiency in the $post parameter by the function
|
|
* that calls this one: forum_print_latest_discussions()
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param object $post The post object (passed by reference for speed).
|
|
* @param object $forum The forum object.
|
|
* @param int $group Current group.
|
|
* @param string $datestring Format to use for the dates.
|
|
* @param boolean $cantrack Is tracking enabled for this forum.
|
|
* @param boolean $forumtracked Is the user tracking this forum.
|
|
* @param boolean $canviewparticipants True if user has the viewparticipants permission for this course
|
|
*/
|
|
function forum_print_discussion_header(&$post, $forum, $group=-1, $datestring="",
|
|
$cantrack=true, $forumtracked=true, $canviewparticipants=true, $modcontext=NULL) {
|
|
|
|
global $USER, $CFG, $OUTPUT;
|
|
|
|
static $rowcount;
|
|
static $strmarkalldread;
|
|
|
|
if (empty($modcontext)) {
|
|
if (!$cm = get_coursemodule_from_instance('forum', $forum->id, $forum->course)) {
|
|
print_error('invalidcoursemodule');
|
|
}
|
|
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
}
|
|
|
|
if (!isset($rowcount)) {
|
|
$rowcount = 0;
|
|
$strmarkalldread = get_string('markalldread', 'forum');
|
|
} else {
|
|
$rowcount = ($rowcount + 1) % 2;
|
|
}
|
|
|
|
$post->subject = format_string($post->subject,true);
|
|
|
|
echo "\n\n";
|
|
echo '<tr class="discussion r'.$rowcount.'">';
|
|
|
|
// Topic
|
|
echo '<td class="topic starter">';
|
|
echo '<a href="'.$CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.'">'.$post->subject.'</a>';
|
|
echo "</td>\n";
|
|
|
|
// Picture
|
|
$postuser = new stdClass();
|
|
$postuser->id = $post->userid;
|
|
$postuser->firstname = $post->firstname;
|
|
$postuser->lastname = $post->lastname;
|
|
$postuser->imagealt = $post->imagealt;
|
|
$postuser->picture = $post->picture;
|
|
$postuser->email = $post->email;
|
|
|
|
echo '<td class="picture">';
|
|
echo $OUTPUT->user_picture($postuser, array('courseid'=>$forum->course));
|
|
echo "</td>\n";
|
|
|
|
// User name
|
|
$fullname = fullname($post, has_capability('moodle/site:viewfullnames', $modcontext));
|
|
echo '<td class="author">';
|
|
echo '<a href="'.$CFG->wwwroot.'/user/view.php?id='.$post->userid.'&course='.$forum->course.'">'.$fullname.'</a>';
|
|
echo "</td>\n";
|
|
|
|
// Group picture
|
|
if ($group !== -1) { // Groups are active - group is a group data object or NULL
|
|
echo '<td class="picture group">';
|
|
if (!empty($group->picture) and empty($group->hidepicture)) {
|
|
print_group_picture($group, $forum->course, false, false, true);
|
|
} else if (isset($group->id)) {
|
|
if($canviewparticipants) {
|
|
echo '<a href="'.$CFG->wwwroot.'/user/index.php?id='.$forum->course.'&group='.$group->id.'">'.$group->name.'</a>';
|
|
} else {
|
|
echo $group->name;
|
|
}
|
|
}
|
|
echo "</td>\n";
|
|
}
|
|
|
|
if (has_capability('mod/forum:viewdiscussion', $modcontext)) { // Show the column with replies
|
|
echo '<td class="replies">';
|
|
echo '<a href="'.$CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.'">';
|
|
echo $post->replies.'</a>';
|
|
echo "</td>\n";
|
|
|
|
if ($cantrack) {
|
|
echo '<td class="replies">';
|
|
if ($forumtracked) {
|
|
if ($post->unread > 0) {
|
|
echo '<span class="unread">';
|
|
echo '<a href="'.$CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.'#unread">';
|
|
echo $post->unread;
|
|
echo '</a>';
|
|
echo '<a title="'.$strmarkalldread.'" href="'.$CFG->wwwroot.'/mod/forum/markposts.php?f='.
|
|
$forum->id.'&d='.$post->discussion.'&mark=read&returnpage=view.php">' .
|
|
'<img src="'.$OUTPUT->pix_url('t/clear') . '" class="iconsmall" alt="'.$strmarkalldread.'" /></a>';
|
|
echo '</span>';
|
|
} else {
|
|
echo '<span class="read">';
|
|
echo $post->unread;
|
|
echo '</span>';
|
|
}
|
|
} else {
|
|
echo '<span class="read">';
|
|
echo '-';
|
|
echo '</span>';
|
|
}
|
|
echo "</td>\n";
|
|
}
|
|
}
|
|
|
|
echo '<td class="lastpost">';
|
|
$usedate = (empty($post->timemodified)) ? $post->modified : $post->timemodified; // Just in case
|
|
$parenturl = (empty($post->lastpostid)) ? '' : '&parent='.$post->lastpostid;
|
|
$usermodified = new stdClass();
|
|
$usermodified->id = $post->usermodified;
|
|
$usermodified->firstname = $post->umfirstname;
|
|
$usermodified->lastname = $post->umlastname;
|
|
echo '<a href="'.$CFG->wwwroot.'/user/view.php?id='.$post->usermodified.'&course='.$forum->course.'">'.
|
|
fullname($usermodified).'</a><br />';
|
|
echo '<a href="'.$CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.$parenturl.'">'.
|
|
userdate($usedate, $datestring).'</a>';
|
|
echo "</td>\n";
|
|
|
|
echo "</tr>\n\n";
|
|
|
|
}
|
|
|
|
|
|
/**
|
|
* Given a post object that we already know has a long message
|
|
* this function truncates the message nicely to the first
|
|
* sane place between $CFG->forum_longpost and $CFG->forum_shortpost
|
|
*
|
|
* @global object
|
|
* @param string $message
|
|
* @return string
|
|
*/
|
|
function forum_shorten_post($message) {
|
|
|
|
global $CFG;
|
|
|
|
$i = 0;
|
|
$tag = false;
|
|
$length = strlen($message);
|
|
$count = 0;
|
|
$stopzone = false;
|
|
$truncate = 0;
|
|
|
|
for ($i=0; $i<$length; $i++) {
|
|
$char = $message[$i];
|
|
|
|
switch ($char) {
|
|
case "<":
|
|
$tag = true;
|
|
break;
|
|
case ">":
|
|
$tag = false;
|
|
break;
|
|
default:
|
|
if (!$tag) {
|
|
if ($stopzone) {
|
|
if ($char == ".") {
|
|
$truncate = $i+1;
|
|
break 2;
|
|
}
|
|
}
|
|
$count++;
|
|
}
|
|
break;
|
|
}
|
|
if (!$stopzone) {
|
|
if ($count > $CFG->forum_shortpost) {
|
|
$stopzone = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!$truncate) {
|
|
$truncate = $i;
|
|
}
|
|
|
|
return substr($message, 0, $truncate);
|
|
}
|
|
|
|
/**
|
|
* Print the drop down that allows the user to select how they want to have
|
|
* the discussion displayed.
|
|
*
|
|
* @param int $id forum id if $forumtype is 'single',
|
|
* discussion id for any other forum type
|
|
* @param mixed $mode forum layout mode
|
|
* @param string $forumtype optional
|
|
*/
|
|
function forum_print_mode_form($id, $mode, $forumtype='') {
|
|
global $OUTPUT;
|
|
if ($forumtype == 'single') {
|
|
$select = new single_select(new moodle_url("/mod/forum/view.php", array('f'=>$id)), 'mode', forum_get_layout_modes(), $mode, null, "mode");
|
|
$select->class = "forummode";
|
|
} else {
|
|
$select = new single_select(new moodle_url("/mod/forum/discuss.php", array('d'=>$id)), 'mode', forum_get_layout_modes(), $mode, null, "mode");
|
|
}
|
|
echo $OUTPUT->render($select);
|
|
}
|
|
|
|
/**
|
|
* @global object
|
|
* @param object $course
|
|
* @param string $search
|
|
* @return string
|
|
*/
|
|
function forum_search_form($course, $search='') {
|
|
global $CFG, $OUTPUT;
|
|
|
|
$output = '<div class="forumsearch">';
|
|
$output .= '<form action="'.$CFG->wwwroot.'/mod/forum/search.php" style="display:inline">';
|
|
$output .= '<fieldset class="invisiblefieldset">';
|
|
$output .= $OUTPUT->help_icon('search');
|
|
$output .= '<label class="accesshide" for="search" >'.get_string('search', 'forum').'</label>';
|
|
$output .= '<input id="search" name="search" type="text" size="18" value="'.s($search, true).'" alt="search" />';
|
|
$output .= '<label class="accesshide" for="searchforums" >'.get_string('searchforums', 'forum').'</label>';
|
|
$output .= '<input id="searchforums" value="'.get_string('searchforums', 'forum').'" type="submit" />';
|
|
$output .= '<input name="id" type="hidden" value="'.$course->id.'" />';
|
|
$output .= '</fieldset>';
|
|
$output .= '</form>';
|
|
$output .= '</div>';
|
|
|
|
return $output;
|
|
}
|
|
|
|
|
|
/**
|
|
* @global object
|
|
* @global object
|
|
*/
|
|
function forum_set_return() {
|
|
global $CFG, $SESSION;
|
|
|
|
if (! isset($SESSION->fromdiscussion)) {
|
|
if (!empty($_SERVER['HTTP_REFERER'])) {
|
|
$referer = $_SERVER['HTTP_REFERER'];
|
|
} else {
|
|
$referer = "";
|
|
}
|
|
// If the referer is NOT a login screen then save it.
|
|
if (! strncasecmp("$CFG->wwwroot/login", $referer, 300)) {
|
|
$SESSION->fromdiscussion = $_SERVER["HTTP_REFERER"];
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* @global object
|
|
* @param string $default
|
|
* @return string
|
|
*/
|
|
function forum_go_back_to($default) {
|
|
global $SESSION;
|
|
|
|
if (!empty($SESSION->fromdiscussion)) {
|
|
$returnto = $SESSION->fromdiscussion;
|
|
unset($SESSION->fromdiscussion);
|
|
return $returnto;
|
|
} else {
|
|
return $default;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Given a discussion object that is being moved to $forumto,
|
|
* this function checks all posts in that discussion
|
|
* for attachments, and if any are found, these are
|
|
* moved to the new forum directory.
|
|
*
|
|
* @global object
|
|
* @param object $discussion
|
|
* @param int $forumfrom source forum id
|
|
* @param int $forumto target forum id
|
|
* @return bool success
|
|
*/
|
|
function forum_move_attachments($discussion, $forumfrom, $forumto) {
|
|
global $DB;
|
|
|
|
$fs = get_file_storage();
|
|
|
|
$newcm = get_coursemodule_from_instance('forum', $forumto);
|
|
$oldcm = get_coursemodule_from_instance('forum', $forumfrom);
|
|
|
|
$newcontext = get_context_instance(CONTEXT_MODULE, $newcm->id);
|
|
$oldcontext = get_context_instance(CONTEXT_MODULE, $oldcm->id);
|
|
|
|
// loop through all posts, better not use attachment flag ;-)
|
|
if ($posts = $DB->get_records('forum_posts', array('discussion'=>$discussion->id), '', 'id, attachment')) {
|
|
foreach ($posts as $post) {
|
|
$fs->move_area_files_to_new_context($oldcontext->id,
|
|
$newcontext->id, 'mod_forum', 'post', $post->id);
|
|
$attachmentsmoved = $fs->move_area_files_to_new_context($oldcontext->id,
|
|
$newcontext->id, 'mod_forum', 'attachment', $post->id);
|
|
if ($attachmentsmoved > 0 && $post->attachment != '1') {
|
|
// Weird - let's fix it
|
|
$post->attachment = '1';
|
|
$DB->update_record('forum_posts', $post);
|
|
} else if ($attachmentsmoved == 0 && $post->attachment != '') {
|
|
// Weird - let's fix it
|
|
$post->attachment = '';
|
|
$DB->update_record('forum_posts', $post);
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Returns attachments as formated text/html optionally with separate images
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
* @param object $post
|
|
* @param object $cm
|
|
* @param string $type html/text/separateimages
|
|
* @return mixed string or array of (html text withouth images and image HTML)
|
|
*/
|
|
function forum_print_attachments($post, $cm, $type) {
|
|
global $CFG, $DB, $USER, $OUTPUT;
|
|
|
|
if (empty($post->attachment)) {
|
|
return $type !== 'separateimages' ? '' : array('', '');
|
|
}
|
|
|
|
if (!in_array($type, array('separateimages', 'html', 'text'))) {
|
|
return $type !== 'separateimages' ? '' : array('', '');
|
|
}
|
|
|
|
if (!$context = get_context_instance(CONTEXT_MODULE, $cm->id)) {
|
|
return $type !== 'separateimages' ? '' : array('', '');
|
|
}
|
|
$strattachment = get_string('attachment', 'forum');
|
|
|
|
$fs = get_file_storage();
|
|
|
|
$imagereturn = '';
|
|
$output = '';
|
|
|
|
$canexport = !empty($CFG->enableportfolios) && (has_capability('mod/forum:exportpost', $context) || ($post->userid == $USER->id && has_capability('mod/forum:exportownpost', $context)));
|
|
|
|
if ($canexport) {
|
|
require_once($CFG->libdir.'/portfoliolib.php');
|
|
}
|
|
|
|
$files = $fs->get_area_files($context->id, 'mod_forum', 'attachment', $post->id, "timemodified", false);
|
|
if ($files) {
|
|
if ($canexport) {
|
|
$button = new portfolio_add_button();
|
|
}
|
|
foreach ($files as $file) {
|
|
$filename = $file->get_filename();
|
|
$mimetype = $file->get_mimetype();
|
|
$iconimage = '<img src="'.$OUTPUT->pix_url(file_mimetype_icon($mimetype)).'" class="icon" alt="'.$mimetype.'" />';
|
|
$path = file_encode_url($CFG->wwwroot.'/pluginfile.php', '/'.$context->id.'/mod_forum/attachment/'.$post->id.'/'.$filename);
|
|
|
|
if ($type == 'html') {
|
|
$output .= "<a href=\"$path\">$iconimage</a> ";
|
|
$output .= "<a href=\"$path\">".s($filename)."</a>";
|
|
if ($canexport) {
|
|
$button->set_callback_options('forum_portfolio_caller', array('postid' => $post->id, 'attachment' => $file->get_id()), '/mod/forum/locallib.php');
|
|
$button->set_format_by_file($file);
|
|
$output .= $button->to_html(PORTFOLIO_ADD_ICON_LINK);
|
|
}
|
|
$output .= "<br />";
|
|
|
|
} else if ($type == 'text') {
|
|
$output .= "$strattachment ".s($filename).":\n$path\n";
|
|
|
|
} else { //'returnimages'
|
|
if (in_array($mimetype, array('image/gif', 'image/jpeg', 'image/png'))) {
|
|
// Image attachments don't get printed as links
|
|
$imagereturn .= "<br /><img src=\"$path\" alt=\"\" />";
|
|
if ($canexport) {
|
|
$button->set_callback_options('forum_portfolio_caller', array('postid' => $post->id, 'attachment' => $file->get_id()), '/mod/forum/locallib.php');
|
|
$button->set_format_by_file($file);
|
|
$imagereturn .= $button->to_html(PORTFOLIO_ADD_ICON_LINK);
|
|
}
|
|
} else {
|
|
$output .= "<a href=\"$path\">$iconimage</a> ";
|
|
$output .= format_text("<a href=\"$path\">".s($filename)."</a>", FORMAT_HTML, array('context'=>$context));
|
|
if ($canexport) {
|
|
$button->set_callback_options('forum_portfolio_caller', array('postid' => $post->id, 'attachment' => $file->get_id()), '/mod/forum/locallib.php');
|
|
$button->set_format_by_file($file);
|
|
$output .= $button->to_html(PORTFOLIO_ADD_ICON_LINK);
|
|
}
|
|
$output .= '<br />';
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($type !== 'separateimages') {
|
|
return $output;
|
|
|
|
} else {
|
|
return array($output, $imagereturn);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Lists all browsable file areas
|
|
*
|
|
* @package mod_forum
|
|
* @category files
|
|
* @param stdClass $course course object
|
|
* @param stdClass $cm course module object
|
|
* @param stdClass $context context object
|
|
* @return array
|
|
*/
|
|
function forum_get_file_areas($course, $cm, $context) {
|
|
$areas = array();
|
|
return $areas;
|
|
}
|
|
|
|
/**
|
|
* File browsing support for forum module.
|
|
*
|
|
* @package mod_forum
|
|
* @category files
|
|
* @param stdClass $browser file browser object
|
|
* @param stdClass $areas file areas
|
|
* @param stdClass $course course object
|
|
* @param stdClass $cm course module
|
|
* @param stdClass $context context module
|
|
* @param string $filearea file area
|
|
* @param int $itemid item ID
|
|
* @param string $filepath file path
|
|
* @param string $filename file name
|
|
* @return file_info instance or null if not found
|
|
*/
|
|
function forum_get_file_info($browser, $areas, $course, $cm, $context, $filearea, $itemid, $filepath, $filename) {
|
|
global $CFG, $DB;
|
|
|
|
if ($context->contextlevel != CONTEXT_MODULE) {
|
|
return null;
|
|
}
|
|
|
|
$fileareas = array('attachment', 'post');
|
|
if (!in_array($filearea, $fileareas)) {
|
|
return null;
|
|
}
|
|
|
|
if (!$post = $DB->get_record('forum_posts', array('id' => $itemid))) {
|
|
return null;
|
|
}
|
|
|
|
if (!$discussion = $DB->get_record('forum_discussions', array('id' => $post->discussion))) {
|
|
return null;
|
|
}
|
|
|
|
if (!$forum = $DB->get_record('forum', array('id' => $cm->instance))) {
|
|
return null;
|
|
}
|
|
|
|
$fs = get_file_storage();
|
|
$filepath = is_null($filepath) ? '/' : $filepath;
|
|
$filename = is_null($filename) ? '.' : $filename;
|
|
if (!($storedfile = $fs->get_file($context->id, 'mod_forum', $filearea, $itemid, $filepath, $filename))) {
|
|
return null;
|
|
}
|
|
|
|
// Make sure groups allow this user to see this file
|
|
if ($discussion->groupid > 0 and $groupmode = groups_get_activity_groupmode($cm, $course)) { // Groups are being used
|
|
if (!groups_group_exists($discussion->groupid)) { // Can't find group
|
|
return null; // Be safe and don't send it to anyone
|
|
}
|
|
|
|
if (!groups_is_member($discussion->groupid) and !has_capability('moodle/site:accessallgroups', $context)) {
|
|
// do not send posts from other groups when in SEPARATEGROUPS or VISIBLEGROUPS
|
|
return null;
|
|
}
|
|
}
|
|
|
|
// Make sure we're allowed to see it...
|
|
if (!forum_user_can_see_post($forum, $discussion, $post, NULL, $cm)) {
|
|
return null;
|
|
}
|
|
|
|
$urlbase = $CFG->wwwroot.'/pluginfile.php';
|
|
return new file_info_stored($browser, $context, $storedfile, $urlbase, $filearea, $itemid, true, true, false);
|
|
}
|
|
|
|
/**
|
|
* Serves the forum attachments. Implements needed access control ;-)
|
|
*
|
|
* @package mod_forum
|
|
* @category files
|
|
* @param stdClass $course course object
|
|
* @param stdClass $cm course module object
|
|
* @param stdClass $context context object
|
|
* @param string $filearea file area
|
|
* @param array $args extra arguments
|
|
* @param bool $forcedownload whether or not force download
|
|
* @return bool false if file not found, does not return if found - justsend the file
|
|
*/
|
|
function forum_pluginfile($course, $cm, $context, $filearea, $args, $forcedownload) {
|
|
global $CFG, $DB;
|
|
|
|
if ($context->contextlevel != CONTEXT_MODULE) {
|
|
return false;
|
|
}
|
|
|
|
require_course_login($course, true, $cm);
|
|
|
|
$fileareas = array('attachment', 'post');
|
|
if (!in_array($filearea, $fileareas)) {
|
|
return false;
|
|
}
|
|
|
|
$postid = (int)array_shift($args);
|
|
|
|
if (!$post = $DB->get_record('forum_posts', array('id'=>$postid))) {
|
|
return false;
|
|
}
|
|
|
|
if (!$discussion = $DB->get_record('forum_discussions', array('id'=>$post->discussion))) {
|
|
return false;
|
|
}
|
|
|
|
if (!$forum = $DB->get_record('forum', array('id'=>$cm->instance))) {
|
|
return false;
|
|
}
|
|
|
|
$fs = get_file_storage();
|
|
$relativepath = implode('/', $args);
|
|
$fullpath = "/$context->id/mod_forum/$filearea/$postid/$relativepath";
|
|
if (!$file = $fs->get_file_by_hash(sha1($fullpath)) or $file->is_directory()) {
|
|
return false;
|
|
}
|
|
|
|
// Make sure groups allow this user to see this file
|
|
if ($discussion->groupid > 0 and $groupmode = groups_get_activity_groupmode($cm, $course)) { // Groups are being used
|
|
if (!groups_group_exists($discussion->groupid)) { // Can't find group
|
|
return false; // Be safe and don't send it to anyone
|
|
}
|
|
|
|
if (!groups_is_member($discussion->groupid) and !has_capability('moodle/site:accessallgroups', $context)) {
|
|
// do not send posts from other groups when in SEPARATEGROUPS or VISIBLEGROUPS
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Make sure we're allowed to see it...
|
|
if (!forum_user_can_see_post($forum, $discussion, $post, NULL, $cm)) {
|
|
return false;
|
|
}
|
|
|
|
|
|
// finally send the file
|
|
send_stored_file($file, 0, 0, true); // download MUST be forced - security!
|
|
}
|
|
|
|
/**
|
|
* If successful, this function returns the name of the file
|
|
*
|
|
* @global object
|
|
* @param object $post is a full post record, including course and forum
|
|
* @param object $forum
|
|
* @param object $cm
|
|
* @param mixed $mform
|
|
* @param string $message
|
|
* @return bool
|
|
*/
|
|
function forum_add_attachment($post, $forum, $cm, $mform=null, &$message=null) {
|
|
global $DB;
|
|
|
|
if (empty($mform)) {
|
|
return false;
|
|
}
|
|
|
|
if (empty($post->attachments)) {
|
|
return true; // Nothing to do
|
|
}
|
|
|
|
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
|
|
$info = file_get_draft_area_info($post->attachments);
|
|
$present = ($info['filecount']>0) ? '1' : '';
|
|
file_save_draft_area_files($post->attachments, $context->id, 'mod_forum', 'attachment', $post->id);
|
|
|
|
$DB->set_field('forum_posts', 'attachment', $present, array('id'=>$post->id));
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Add a new post in an existing discussion.
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
* @param object $post
|
|
* @param mixed $mform
|
|
* @param string $message
|
|
* @return int
|
|
*/
|
|
function forum_add_new_post($post, $mform, &$message) {
|
|
global $USER, $CFG, $DB;
|
|
|
|
$discussion = $DB->get_record('forum_discussions', array('id' => $post->discussion));
|
|
$forum = $DB->get_record('forum', array('id' => $discussion->forum));
|
|
$cm = get_coursemodule_from_instance('forum', $forum->id);
|
|
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
|
|
$post->created = $post->modified = time();
|
|
$post->mailed = "0";
|
|
$post->userid = $USER->id;
|
|
$post->attachment = "";
|
|
|
|
$post->id = $DB->insert_record("forum_posts", $post);
|
|
$post->message = file_save_draft_area_files($post->itemid, $context->id, 'mod_forum', 'post', $post->id, array('subdirs'=>true), $post->message);
|
|
$DB->set_field('forum_posts', 'message', $post->message, array('id'=>$post->id));
|
|
forum_add_attachment($post, $forum, $cm, $mform, $message);
|
|
|
|
// Update discussion modified date
|
|
$DB->set_field("forum_discussions", "timemodified", $post->modified, array("id" => $post->discussion));
|
|
$DB->set_field("forum_discussions", "usermodified", $post->userid, array("id" => $post->discussion));
|
|
|
|
if (forum_tp_can_track_forums($forum) && forum_tp_is_tracked($forum)) {
|
|
forum_tp_mark_post_read($post->userid, $post, $post->forum);
|
|
}
|
|
|
|
return $post->id;
|
|
}
|
|
|
|
/**
|
|
* Update a post
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
* @param object $post
|
|
* @param mixed $mform
|
|
* @param string $message
|
|
* @return bool
|
|
*/
|
|
function forum_update_post($post, $mform, &$message) {
|
|
global $USER, $CFG, $DB;
|
|
|
|
$discussion = $DB->get_record('forum_discussions', array('id' => $post->discussion));
|
|
$forum = $DB->get_record('forum', array('id' => $discussion->forum));
|
|
$cm = get_coursemodule_from_instance('forum', $forum->id);
|
|
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
|
|
$post->modified = time();
|
|
|
|
$DB->update_record('forum_posts', $post);
|
|
|
|
$discussion->timemodified = $post->modified; // last modified tracking
|
|
$discussion->usermodified = $post->userid; // last modified tracking
|
|
|
|
if (!$post->parent) { // Post is a discussion starter - update discussion title and times too
|
|
$discussion->name = $post->subject;
|
|
$discussion->timestart = $post->timestart;
|
|
$discussion->timeend = $post->timeend;
|
|
}
|
|
$post->message = file_save_draft_area_files($post->itemid, $context->id, 'mod_forum', 'post', $post->id, array('subdirs'=>true), $post->message);
|
|
$DB->set_field('forum_posts', 'message', $post->message, array('id'=>$post->id));
|
|
|
|
$DB->update_record('forum_discussions', $discussion);
|
|
|
|
forum_add_attachment($post, $forum, $cm, $mform, $message);
|
|
|
|
if (forum_tp_can_track_forums($forum) && forum_tp_is_tracked($forum)) {
|
|
forum_tp_mark_post_read($post->userid, $post, $post->forum);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Given an object containing all the necessary data,
|
|
* create a new discussion and return the id
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
* @param object $post
|
|
* @param mixed $mform
|
|
* @param string $message
|
|
* @param int $userid
|
|
* @return object
|
|
*/
|
|
function forum_add_discussion($discussion, $mform=null, &$message=null, $userid=null) {
|
|
global $USER, $CFG, $DB;
|
|
|
|
$timenow = time();
|
|
|
|
if (is_null($userid)) {
|
|
$userid = $USER->id;
|
|
}
|
|
|
|
// The first post is stored as a real post, and linked
|
|
// to from the discuss entry.
|
|
|
|
$forum = $DB->get_record('forum', array('id'=>$discussion->forum));
|
|
$cm = get_coursemodule_from_instance('forum', $forum->id);
|
|
|
|
$post = new stdClass();
|
|
$post->discussion = 0;
|
|
$post->parent = 0;
|
|
$post->userid = $userid;
|
|
$post->created = $timenow;
|
|
$post->modified = $timenow;
|
|
$post->mailed = 0;
|
|
$post->subject = $discussion->name;
|
|
$post->message = $discussion->message;
|
|
$post->messageformat = $discussion->messageformat;
|
|
$post->messagetrust = $discussion->messagetrust;
|
|
$post->attachments = isset($discussion->attachments) ? $discussion->attachments : null;
|
|
$post->forum = $forum->id; // speedup
|
|
$post->course = $forum->course; // speedup
|
|
$post->mailnow = $discussion->mailnow;
|
|
|
|
$post->id = $DB->insert_record("forum_posts", $post);
|
|
|
|
// TODO: Fix the calling code so that there always is a $cm when this function is called
|
|
if (!empty($cm->id) && !empty($discussion->itemid)) { // In "single simple discussions" this may not exist yet
|
|
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
$text = file_save_draft_area_files($discussion->itemid, $context->id, 'mod_forum', 'post', $post->id, array('subdirs'=>true), $post->message);
|
|
$DB->set_field('forum_posts', 'message', $text, array('id'=>$post->id));
|
|
}
|
|
|
|
// Now do the main entry for the discussion, linking to this first post
|
|
|
|
$discussion->firstpost = $post->id;
|
|
$discussion->timemodified = $timenow;
|
|
$discussion->usermodified = $post->userid;
|
|
$discussion->userid = $userid;
|
|
|
|
$post->discussion = $DB->insert_record("forum_discussions", $discussion);
|
|
|
|
// Finally, set the pointer on the post.
|
|
$DB->set_field("forum_posts", "discussion", $post->discussion, array("id"=>$post->id));
|
|
|
|
if (!empty($cm->id)) {
|
|
forum_add_attachment($post, $forum, $cm, $mform, $message);
|
|
}
|
|
|
|
if (forum_tp_can_track_forums($forum) && forum_tp_is_tracked($forum)) {
|
|
forum_tp_mark_post_read($post->userid, $post, $post->forum);
|
|
}
|
|
|
|
return $post->discussion;
|
|
}
|
|
|
|
|
|
/**
|
|
* Deletes a discussion and handles all associated cleanup.
|
|
*
|
|
* @global object
|
|
* @param object $discussion Discussion to delete
|
|
* @param bool $fulldelete True when deleting entire forum
|
|
* @param object $course Course
|
|
* @param object $cm Course-module
|
|
* @param object $forum Forum
|
|
* @return bool
|
|
*/
|
|
function forum_delete_discussion($discussion, $fulldelete, $course, $cm, $forum) {
|
|
global $DB, $CFG;
|
|
require_once($CFG->libdir.'/completionlib.php');
|
|
|
|
$result = true;
|
|
|
|
if ($posts = $DB->get_records("forum_posts", array("discussion" => $discussion->id))) {
|
|
foreach ($posts as $post) {
|
|
$post->course = $discussion->course;
|
|
$post->forum = $discussion->forum;
|
|
if (!forum_delete_post($post, 'ignore', $course, $cm, $forum, $fulldelete)) {
|
|
$result = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
forum_tp_delete_read_records(-1, -1, $discussion->id);
|
|
|
|
if (!$DB->delete_records("forum_discussions", array("id"=>$discussion->id))) {
|
|
$result = false;
|
|
}
|
|
|
|
// Update completion state if we are tracking completion based on number of posts
|
|
// But don't bother when deleting whole thing
|
|
if (!$fulldelete) {
|
|
$completion = new completion_info($course);
|
|
if ($completion->is_enabled($cm) == COMPLETION_TRACKING_AUTOMATIC &&
|
|
($forum->completiondiscussions || $forum->completionreplies || $forum->completionposts)) {
|
|
$completion->update_state($cm, COMPLETION_INCOMPLETE, $discussion->userid);
|
|
}
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
|
|
/**
|
|
* Deletes a single forum post.
|
|
*
|
|
* @global object
|
|
* @param object $post Forum post object
|
|
* @param mixed $children Whether to delete children. If false, returns false
|
|
* if there are any children (without deleting the post). If true,
|
|
* recursively deletes all children. If set to special value 'ignore', deletes
|
|
* post regardless of children (this is for use only when deleting all posts
|
|
* in a disussion).
|
|
* @param object $course Course
|
|
* @param object $cm Course-module
|
|
* @param object $forum Forum
|
|
* @param bool $skipcompletion True to skip updating completion state if it
|
|
* would otherwise be updated, i.e. when deleting entire forum anyway.
|
|
* @return bool
|
|
*/
|
|
function forum_delete_post($post, $children, $course, $cm, $forum, $skipcompletion=false) {
|
|
global $DB, $CFG;
|
|
require_once($CFG->libdir.'/completionlib.php');
|
|
|
|
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
|
|
if ($children !== 'ignore' && ($childposts = $DB->get_records('forum_posts', array('parent'=>$post->id)))) {
|
|
if ($children) {
|
|
foreach ($childposts as $childpost) {
|
|
forum_delete_post($childpost, true, $course, $cm, $forum, $skipcompletion);
|
|
}
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
//delete ratings
|
|
require_once($CFG->dirroot.'/rating/lib.php');
|
|
$delopt = new stdClass;
|
|
$delopt->contextid = $context->id;
|
|
$delopt->component = 'mod_forum';
|
|
$delopt->ratingarea = 'post';
|
|
$delopt->itemid = $post->id;
|
|
$rm = new rating_manager();
|
|
$rm->delete_ratings($delopt);
|
|
|
|
//delete attachments
|
|
$fs = get_file_storage();
|
|
$fs->delete_area_files($context->id, 'mod_forum', 'attachment', $post->id);
|
|
$fs->delete_area_files($context->id, 'mod_forum', 'post', $post->id);
|
|
|
|
if ($DB->delete_records("forum_posts", array("id" => $post->id))) {
|
|
|
|
forum_tp_delete_read_records(-1, $post->id);
|
|
|
|
// Just in case we are deleting the last post
|
|
forum_discussion_update_last_post($post->discussion);
|
|
|
|
// Update completion state if we are tracking completion based on number of posts
|
|
// But don't bother when deleting whole thing
|
|
|
|
if (!$skipcompletion) {
|
|
$completion = new completion_info($course);
|
|
if ($completion->is_enabled($cm) == COMPLETION_TRACKING_AUTOMATIC &&
|
|
($forum->completiondiscussions || $forum->completionreplies || $forum->completionposts)) {
|
|
$completion->update_state($cm, COMPLETION_INCOMPLETE, $post->userid);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @global object
|
|
* @param object $post
|
|
* @param bool $children
|
|
* @return int
|
|
*/
|
|
function forum_count_replies($post, $children=true) {
|
|
global $DB;
|
|
$count = 0;
|
|
|
|
if ($children) {
|
|
if ($childposts = $DB->get_records('forum_posts', array('parent' => $post->id))) {
|
|
foreach ($childposts as $childpost) {
|
|
$count ++; // For this child
|
|
$count += forum_count_replies($childpost, true);
|
|
}
|
|
}
|
|
} else {
|
|
$count += $DB->count_records('forum_posts', array('parent' => $post->id));
|
|
}
|
|
|
|
return $count;
|
|
}
|
|
|
|
|
|
/**
|
|
* @global object
|
|
* @param int $forumid
|
|
* @param mixed $value
|
|
* @return bool
|
|
*/
|
|
function forum_forcesubscribe($forumid, $value=1) {
|
|
global $DB;
|
|
return $DB->set_field("forum", "forcesubscribe", $value, array("id" => $forumid));
|
|
}
|
|
|
|
/**
|
|
* @global object
|
|
* @param object $forum
|
|
* @return bool
|
|
*/
|
|
function forum_is_forcesubscribed($forum) {
|
|
global $DB;
|
|
if (isset($forum->forcesubscribe)) { // then we use that
|
|
return ($forum->forcesubscribe == FORUM_FORCESUBSCRIBE);
|
|
} else { // Check the database
|
|
return ($DB->get_field('forum', 'forcesubscribe', array('id' => $forum)) == FORUM_FORCESUBSCRIBE);
|
|
}
|
|
}
|
|
|
|
function forum_get_forcesubscribed($forum) {
|
|
global $DB;
|
|
if (isset($forum->forcesubscribe)) { // then we use that
|
|
return $forum->forcesubscribe;
|
|
} else { // Check the database
|
|
return $DB->get_field('forum', 'forcesubscribe', array('id' => $forum));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @global object
|
|
* @param int $userid
|
|
* @param object $forum
|
|
* @return bool
|
|
*/
|
|
function forum_is_subscribed($userid, $forum) {
|
|
global $DB;
|
|
if (is_numeric($forum)) {
|
|
$forum = $DB->get_record('forum', array('id' => $forum));
|
|
}
|
|
if (forum_is_forcesubscribed($forum)) {
|
|
return true;
|
|
}
|
|
return $DB->record_exists("forum_subscriptions", array("userid" => $userid, "forum" => $forum->id));
|
|
}
|
|
|
|
function forum_get_subscribed_forums($course) {
|
|
global $USER, $CFG, $DB;
|
|
$sql = "SELECT f.id
|
|
FROM {forum} f
|
|
LEFT JOIN {forum_subscriptions} fs ON (fs.forum = f.id AND fs.userid = ?)
|
|
WHERE f.course = ?
|
|
AND f.forcesubscribe <> ".FORUM_DISALLOWSUBSCRIBE."
|
|
AND (f.forcesubscribe = ".FORUM_FORCESUBSCRIBE." OR fs.id IS NOT NULL)";
|
|
if ($subscribed = $DB->get_records_sql($sql, array($USER->id, $course->id))) {
|
|
foreach ($subscribed as $s) {
|
|
$subscribed[$s->id] = $s->id;
|
|
}
|
|
return $subscribed;
|
|
} else {
|
|
return array();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Adds user to the subscriber list
|
|
*
|
|
* @global object
|
|
* @param int $userid
|
|
* @param int $forumid
|
|
*/
|
|
function forum_subscribe($userid, $forumid) {
|
|
global $DB;
|
|
|
|
if ($DB->record_exists("forum_subscriptions", array("userid"=>$userid, "forum"=>$forumid))) {
|
|
return true;
|
|
}
|
|
|
|
$sub = new stdClass();
|
|
$sub->userid = $userid;
|
|
$sub->forum = $forumid;
|
|
|
|
return $DB->insert_record("forum_subscriptions", $sub);
|
|
}
|
|
|
|
/**
|
|
* Removes user from the subscriber list
|
|
*
|
|
* @global object
|
|
* @param int $userid
|
|
* @param int $forumid
|
|
*/
|
|
function forum_unsubscribe($userid, $forumid) {
|
|
global $DB;
|
|
return $DB->delete_records("forum_subscriptions", array("userid"=>$userid, "forum"=>$forumid));
|
|
}
|
|
|
|
/**
|
|
* Given a new post, subscribes or unsubscribes as appropriate.
|
|
* Returns some text which describes what happened.
|
|
*
|
|
* @global objec
|
|
* @param object $post
|
|
* @param object $forum
|
|
*/
|
|
function forum_post_subscription($post, $forum) {
|
|
|
|
global $USER;
|
|
|
|
$action = '';
|
|
$subscribed = forum_is_subscribed($USER->id, $forum);
|
|
|
|
if ($forum->forcesubscribe == FORUM_FORCESUBSCRIBE) { // database ignored
|
|
return "";
|
|
|
|
} elseif (($forum->forcesubscribe == FORUM_DISALLOWSUBSCRIBE)
|
|
&& !has_capability('moodle/course:manageactivities', get_context_instance(CONTEXT_COURSE, $forum->course), $USER->id)) {
|
|
if ($subscribed) {
|
|
$action = 'unsubscribe'; // sanity check, following MDL-14558
|
|
} else {
|
|
return "";
|
|
}
|
|
|
|
} else { // go with the user's choice
|
|
if (isset($post->subscribe)) {
|
|
// no change
|
|
if ((!empty($post->subscribe) && $subscribed)
|
|
|| (empty($post->subscribe) && !$subscribed)) {
|
|
return "";
|
|
|
|
} elseif (!empty($post->subscribe) && !$subscribed) {
|
|
$action = 'subscribe';
|
|
|
|
} elseif (empty($post->subscribe) && $subscribed) {
|
|
$action = 'unsubscribe';
|
|
}
|
|
}
|
|
}
|
|
|
|
$info = new stdClass();
|
|
$info->name = fullname($USER);
|
|
$info->forum = format_string($forum->name);
|
|
|
|
switch ($action) {
|
|
case 'subscribe':
|
|
forum_subscribe($USER->id, $post->forum);
|
|
return "<p>".get_string("nowsubscribed", "forum", $info)."</p>";
|
|
case 'unsubscribe':
|
|
forum_unsubscribe($USER->id, $post->forum);
|
|
return "<p>".get_string("nownotsubscribed", "forum", $info)."</p>";
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Generate and return the subscribe or unsubscribe link for a forum.
|
|
*
|
|
* @param object $forum the forum. Fields used are $forum->id and $forum->forcesubscribe.
|
|
* @param object $context the context object for this forum.
|
|
* @param array $messages text used for the link in its various states
|
|
* (subscribed, unsubscribed, forcesubscribed or cantsubscribe).
|
|
* Any strings not passed in are taken from the $defaultmessages array
|
|
* at the top of the function.
|
|
* @param bool $cantaccessagroup
|
|
* @param bool $fakelink
|
|
* @param bool $backtoindex
|
|
* @param array $subscribed_forums
|
|
* @return string
|
|
*/
|
|
function forum_get_subscribe_link($forum, $context, $messages = array(), $cantaccessagroup = false, $fakelink=true, $backtoindex=false, $subscribed_forums=null) {
|
|
global $CFG, $USER, $PAGE, $OUTPUT;
|
|
$defaultmessages = array(
|
|
'subscribed' => get_string('unsubscribe', 'forum'),
|
|
'unsubscribed' => get_string('subscribe', 'forum'),
|
|
'cantaccessgroup' => get_string('no'),
|
|
'forcesubscribed' => get_string('everyoneissubscribed', 'forum'),
|
|
'cantsubscribe' => get_string('disallowsubscribe','forum')
|
|
);
|
|
$messages = $messages + $defaultmessages;
|
|
|
|
if (forum_is_forcesubscribed($forum)) {
|
|
return $messages['forcesubscribed'];
|
|
} else if ($forum->forcesubscribe == FORUM_DISALLOWSUBSCRIBE && !has_capability('mod/forum:managesubscriptions', $context)) {
|
|
return $messages['cantsubscribe'];
|
|
} else if ($cantaccessagroup) {
|
|
return $messages['cantaccessgroup'];
|
|
} else {
|
|
if (!is_enrolled($context, $USER, '', true)) {
|
|
return '';
|
|
}
|
|
if (is_null($subscribed_forums)) {
|
|
$subscribed = forum_is_subscribed($USER->id, $forum);
|
|
} else {
|
|
$subscribed = !empty($subscribed_forums[$forum->id]);
|
|
}
|
|
if ($subscribed) {
|
|
$linktext = $messages['subscribed'];
|
|
$linktitle = get_string('subscribestop', 'forum');
|
|
} else {
|
|
$linktext = $messages['unsubscribed'];
|
|
$linktitle = get_string('subscribestart', 'forum');
|
|
}
|
|
|
|
$options = array();
|
|
if ($backtoindex) {
|
|
$backtoindexlink = '&backtoindex=1';
|
|
$options['backtoindex'] = 1;
|
|
} else {
|
|
$backtoindexlink = '';
|
|
}
|
|
$link = '';
|
|
|
|
if ($fakelink) {
|
|
$PAGE->requires->js('/mod/forum/forum.js');
|
|
$PAGE->requires->js_function_call('forum_produce_subscribe_link', array($forum->id, $backtoindexlink, $linktext, $linktitle));
|
|
$link = "<noscript>";
|
|
}
|
|
$options['id'] = $forum->id;
|
|
$options['sesskey'] = sesskey();
|
|
$url = new moodle_url('/mod/forum/subscribe.php', $options);
|
|
$link .= $OUTPUT->single_button($url, $linktext, 'get', array('title'=>$linktitle));
|
|
if ($fakelink) {
|
|
$link .= '</noscript>';
|
|
}
|
|
|
|
return $link;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Generate and return the track or no track link for a forum.
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
* @param object $forum the forum. Fields used are $forum->id and $forum->forcesubscribe.
|
|
* @param array $messages
|
|
* @param bool $fakelink
|
|
* @return string
|
|
*/
|
|
function forum_get_tracking_link($forum, $messages=array(), $fakelink=true) {
|
|
global $CFG, $USER, $PAGE, $OUTPUT;
|
|
|
|
static $strnotrackforum, $strtrackforum;
|
|
|
|
if (isset($messages['trackforum'])) {
|
|
$strtrackforum = $messages['trackforum'];
|
|
}
|
|
if (isset($messages['notrackforum'])) {
|
|
$strnotrackforum = $messages['notrackforum'];
|
|
}
|
|
if (empty($strtrackforum)) {
|
|
$strtrackforum = get_string('trackforum', 'forum');
|
|
}
|
|
if (empty($strnotrackforum)) {
|
|
$strnotrackforum = get_string('notrackforum', 'forum');
|
|
}
|
|
|
|
if (forum_tp_is_tracked($forum)) {
|
|
$linktitle = $strnotrackforum;
|
|
$linktext = $strnotrackforum;
|
|
} else {
|
|
$linktitle = $strtrackforum;
|
|
$linktext = $strtrackforum;
|
|
}
|
|
|
|
$link = '';
|
|
if ($fakelink) {
|
|
$PAGE->requires->js('/mod/forum/forum.js');
|
|
$PAGE->requires->js_function_call('forum_produce_tracking_link', Array($forum->id, $linktext, $linktitle));
|
|
// use <noscript> to print button in case javascript is not enabled
|
|
$link .= '<noscript>';
|
|
}
|
|
$url = new moodle_url('/mod/forum/settracking.php', array('id'=>$forum->id));
|
|
$link .= $OUTPUT->single_button($url, $linktext, 'get', array('title'=>$linktitle));
|
|
|
|
if ($fakelink) {
|
|
$link .= '</noscript>';
|
|
}
|
|
|
|
return $link;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Returns true if user created new discussion already
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param int $forumid
|
|
* @param int $userid
|
|
* @return bool
|
|
*/
|
|
function forum_user_has_posted_discussion($forumid, $userid) {
|
|
global $CFG, $DB;
|
|
|
|
$sql = "SELECT 'x'
|
|
FROM {forum_discussions} d, {forum_posts} p
|
|
WHERE d.forum = ? AND p.discussion = d.id AND p.parent = 0 and p.userid = ?";
|
|
|
|
return $DB->record_exists_sql($sql, array($forumid, $userid));
|
|
}
|
|
|
|
/**
|
|
* @global object
|
|
* @global object
|
|
* @param int $forumid
|
|
* @param int $userid
|
|
* @return array
|
|
*/
|
|
function forum_discussions_user_has_posted_in($forumid, $userid) {
|
|
global $CFG, $DB;
|
|
|
|
$haspostedsql = "SELECT d.id AS id,
|
|
d.*
|
|
FROM {forum_posts} p,
|
|
{forum_discussions} d
|
|
WHERE p.discussion = d.id
|
|
AND d.forum = ?
|
|
AND p.userid = ?";
|
|
|
|
return $DB->get_records_sql($haspostedsql, array($forumid, $userid));
|
|
}
|
|
|
|
/**
|
|
* @global object
|
|
* @global object
|
|
* @param int $forumid
|
|
* @param int $did
|
|
* @param int $userid
|
|
* @return bool
|
|
*/
|
|
function forum_user_has_posted($forumid, $did, $userid) {
|
|
global $DB;
|
|
|
|
if (empty($did)) {
|
|
// posted in any forum discussion?
|
|
$sql = "SELECT 'x'
|
|
FROM {forum_posts} p
|
|
JOIN {forum_discussions} d ON d.id = p.discussion
|
|
WHERE p.userid = :userid AND d.forum = :forumid";
|
|
return $DB->record_exists_sql($sql, array('forumid'=>$forumid,'userid'=>$userid));
|
|
} else {
|
|
return $DB->record_exists('forum_posts', array('discussion'=>$did,'userid'=>$userid));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns creation time of the first user's post in given discussion
|
|
* @global object $DB
|
|
* @param int $did Discussion id
|
|
* @param int $userid User id
|
|
* @return int|bool post creation time stamp or return false
|
|
*/
|
|
function forum_get_user_posted_time($did, $userid) {
|
|
global $DB;
|
|
|
|
$posttime = $DB->get_field('forum_posts', 'MIN(created)', array('userid'=>$userid, 'discussion'=>$did));
|
|
if (empty($posttime)) {
|
|
return false;
|
|
}
|
|
return $posttime;
|
|
}
|
|
|
|
/**
|
|
* @global object
|
|
* @param object $forum
|
|
* @param object $currentgroup
|
|
* @param int $unused
|
|
* @param object $cm
|
|
* @param object $context
|
|
* @return bool
|
|
*/
|
|
function forum_user_can_post_discussion($forum, $currentgroup=null, $unused=-1, $cm=NULL, $context=NULL) {
|
|
// $forum is an object
|
|
global $USER;
|
|
|
|
// shortcut - guest and not-logged-in users can not post
|
|
if (isguestuser() or !isloggedin()) {
|
|
return false;
|
|
}
|
|
|
|
if (!$cm) {
|
|
debugging('missing cm', DEBUG_DEVELOPER);
|
|
if (!$cm = get_coursemodule_from_instance('forum', $forum->id, $forum->course)) {
|
|
print_error('invalidcoursemodule');
|
|
}
|
|
}
|
|
|
|
if (!$context) {
|
|
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
}
|
|
|
|
if ($currentgroup === null) {
|
|
$currentgroup = groups_get_activity_group($cm);
|
|
}
|
|
|
|
$groupmode = groups_get_activity_groupmode($cm);
|
|
|
|
if ($forum->type == 'news') {
|
|
$capname = 'mod/forum:addnews';
|
|
} else if ($forum->type == 'qanda') {
|
|
$capname = 'mod/forum:addquestion';
|
|
} else {
|
|
$capname = 'mod/forum:startdiscussion';
|
|
}
|
|
|
|
if (!has_capability($capname, $context)) {
|
|
return false;
|
|
}
|
|
|
|
if ($forum->type == 'single') {
|
|
return false;
|
|
}
|
|
|
|
if ($forum->type == 'eachuser') {
|
|
if (forum_user_has_posted_discussion($forum->id, $USER->id)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (!$groupmode or has_capability('moodle/site:accessallgroups', $context)) {
|
|
return true;
|
|
}
|
|
|
|
if ($currentgroup) {
|
|
return groups_is_member($currentgroup);
|
|
} else {
|
|
// no group membership and no accessallgroups means no new discussions
|
|
// reverted to 1.7 behaviour in 1.9+, buggy in 1.8.0-1.9.0
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This function checks whether the user can reply to posts in a forum
|
|
* discussion. Use forum_user_can_post_discussion() to check whether the user
|
|
* can start discussions.
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @uses DEBUG_DEVELOPER
|
|
* @uses CONTEXT_MODULE
|
|
* @uses VISIBLEGROUPS
|
|
* @param object $forum forum object
|
|
* @param object $discussion
|
|
* @param object $user
|
|
* @param object $cm
|
|
* @param object $course
|
|
* @param object $context
|
|
* @return bool
|
|
*/
|
|
function forum_user_can_post($forum, $discussion, $user=NULL, $cm=NULL, $course=NULL, $context=NULL) {
|
|
global $USER, $DB;
|
|
if (empty($user)) {
|
|
$user = $USER;
|
|
}
|
|
|
|
// shortcut - guest and not-logged-in users can not post
|
|
if (isguestuser($user) or empty($user->id)) {
|
|
return false;
|
|
}
|
|
|
|
if (!isset($discussion->groupid)) {
|
|
debugging('incorrect discussion parameter', DEBUG_DEVELOPER);
|
|
return false;
|
|
}
|
|
|
|
if (!$cm) {
|
|
debugging('missing cm', DEBUG_DEVELOPER);
|
|
if (!$cm = get_coursemodule_from_instance('forum', $forum->id, $forum->course)) {
|
|
print_error('invalidcoursemodule');
|
|
}
|
|
}
|
|
|
|
if (!$course) {
|
|
debugging('missing course', DEBUG_DEVELOPER);
|
|
if (!$course = $DB->get_record('course', array('id' => $forum->course))) {
|
|
print_error('invalidcourseid');
|
|
}
|
|
}
|
|
|
|
if (!$context) {
|
|
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
}
|
|
|
|
// normal users with temporary guest access can not post, suspended users can not post either
|
|
if (!is_viewing($context, $user->id) and !is_enrolled($context, $user->id, '', true)) {
|
|
return false;
|
|
}
|
|
|
|
if ($forum->type == 'news') {
|
|
$capname = 'mod/forum:replynews';
|
|
} else {
|
|
$capname = 'mod/forum:replypost';
|
|
}
|
|
|
|
if (!has_capability($capname, $context, $user->id)) {
|
|
return false;
|
|
}
|
|
|
|
if (!$groupmode = groups_get_activity_groupmode($cm, $course)) {
|
|
return true;
|
|
}
|
|
|
|
if (has_capability('moodle/site:accessallgroups', $context)) {
|
|
return true;
|
|
}
|
|
|
|
if ($groupmode == VISIBLEGROUPS) {
|
|
if ($discussion->groupid == -1) {
|
|
// allow students to reply to all participants discussions - this was not possible in Moodle <1.8
|
|
return true;
|
|
}
|
|
return groups_is_member($discussion->groupid);
|
|
|
|
} else {
|
|
//separate groups
|
|
if ($discussion->groupid == -1) {
|
|
return false;
|
|
}
|
|
return groups_is_member($discussion->groupid);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* checks to see if a user can view a particular post
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @uses CONTEXT_MODULE
|
|
* @uses SEPARATEGROUPS
|
|
* @param object $post
|
|
* @param object $course
|
|
* @param object $cm
|
|
* @param object $forum
|
|
* @param object $discussion
|
|
* @param object $user
|
|
*/
|
|
function forum_user_can_view_post($post, $course, $cm, $forum, $discussion, $user=NULL){
|
|
|
|
global $CFG, $USER;
|
|
|
|
if (!$user){
|
|
$user = $USER;
|
|
}
|
|
|
|
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
if (!has_capability('mod/forum:viewdiscussion', $modcontext)) {
|
|
return false;
|
|
}
|
|
|
|
// If it's a grouped discussion, make sure the user is a member
|
|
if ($discussion->groupid > 0) {
|
|
$groupmode = groups_get_activity_groupmode($cm);
|
|
if ($groupmode == SEPARATEGROUPS) {
|
|
return groups_is_member($discussion->groupid) || has_capability('moodle/site:accessallgroups', $modcontext);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
/**
|
|
* @global object
|
|
* @global object
|
|
* @uses DEBUG_DEVELOPER
|
|
* @param object $forum
|
|
* @param object $discussion
|
|
* @param object $context
|
|
* @param object $user
|
|
* @return bool
|
|
*/
|
|
function forum_user_can_see_discussion($forum, $discussion, $context, $user=NULL) {
|
|
global $USER, $DB;
|
|
|
|
if (empty($user) || empty($user->id)) {
|
|
$user = $USER;
|
|
}
|
|
|
|
// retrieve objects (yuk)
|
|
if (is_numeric($forum)) {
|
|
debugging('missing full forum', DEBUG_DEVELOPER);
|
|
if (!$forum = $DB->get_record('forum',array('id'=>$forum))) {
|
|
return false;
|
|
}
|
|
}
|
|
if (is_numeric($discussion)) {
|
|
debugging('missing full discussion', DEBUG_DEVELOPER);
|
|
if (!$discussion = $DB->get_record('forum_discussions',array('id'=>$discussion))) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (!has_capability('mod/forum:viewdiscussion', $context)) {
|
|
return false;
|
|
}
|
|
|
|
if ($forum->type == 'qanda' &&
|
|
!forum_user_has_posted($forum->id, $discussion->id, $user->id) &&
|
|
!has_capability('mod/forum:viewqandawithoutposting', $context)) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
/**
|
|
* @global object
|
|
* @global object
|
|
* @param object $forum
|
|
* @param object $discussion
|
|
* @param object $post
|
|
* @param object $user
|
|
* @param object $cm
|
|
* @return bool
|
|
*/
|
|
function forum_user_can_see_post($forum, $discussion, $post, $user=NULL, $cm=NULL) {
|
|
global $CFG, $USER, $DB;
|
|
|
|
// retrieve objects (yuk)
|
|
if (is_numeric($forum)) {
|
|
debugging('missing full forum', DEBUG_DEVELOPER);
|
|
if (!$forum = $DB->get_record('forum',array('id'=>$forum))) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (is_numeric($discussion)) {
|
|
debugging('missing full discussion', DEBUG_DEVELOPER);
|
|
if (!$discussion = $DB->get_record('forum_discussions',array('id'=>$discussion))) {
|
|
return false;
|
|
}
|
|
}
|
|
if (is_numeric($post)) {
|
|
debugging('missing full post', DEBUG_DEVELOPER);
|
|
if (!$post = $DB->get_record('forum_posts',array('id'=>$post))) {
|
|
return false;
|
|
}
|
|
}
|
|
if (!isset($post->id) && isset($post->parent)) {
|
|
$post->id = $post->parent;
|
|
}
|
|
|
|
if (!$cm) {
|
|
debugging('missing cm', DEBUG_DEVELOPER);
|
|
if (!$cm = get_coursemodule_from_instance('forum', $forum->id, $forum->course)) {
|
|
print_error('invalidcoursemodule');
|
|
}
|
|
}
|
|
|
|
if (empty($user) || empty($user->id)) {
|
|
$user = $USER;
|
|
}
|
|
|
|
$canviewdiscussion = !empty($cm->cache->caps['mod/forum:viewdiscussion']) || has_capability('mod/forum:viewdiscussion', get_context_instance(CONTEXT_MODULE, $cm->id), $user->id);
|
|
if (!$canviewdiscussion && !has_all_capabilities(array('moodle/user:viewdetails', 'moodle/user:readuserposts'), get_context_instance(CONTEXT_USER, $post->userid))) {
|
|
return false;
|
|
}
|
|
|
|
if (isset($cm->uservisible)) {
|
|
if (!$cm->uservisible) {
|
|
return false;
|
|
}
|
|
} else {
|
|
if (!coursemodule_visible_for_user($cm, $user->id)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if ($forum->type == 'qanda') {
|
|
$firstpost = forum_get_firstpost_from_discussion($discussion->id);
|
|
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
$userfirstpost = forum_get_user_posted_time($discussion->id, $user->id);
|
|
|
|
return (($userfirstpost !== false && (time() - $userfirstpost >= $CFG->maxeditingtime)) ||
|
|
$firstpost->id == $post->id || $post->userid == $user->id || $firstpost->userid == $user->id ||
|
|
has_capability('mod/forum:viewqandawithoutposting', $modcontext, $user->id, false));
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
/**
|
|
* Prints the discussion view screen for a forum.
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param object $course The current course object.
|
|
* @param object $forum Forum to be printed.
|
|
* @param int $maxdiscussions .
|
|
* @param string $displayformat The display format to use (optional).
|
|
* @param string $sort Sort arguments for database query (optional).
|
|
* @param int $groupmode Group mode of the forum (optional).
|
|
* @param void $unused (originally current group)
|
|
* @param int $page Page mode, page to display (optional).
|
|
* @param int $perpage The maximum number of discussions per page(optional)
|
|
*
|
|
*/
|
|
function forum_print_latest_discussions($course, $forum, $maxdiscussions=-1, $displayformat='plain', $sort='',
|
|
$currentgroup=-1, $groupmode=-1, $page=-1, $perpage=100, $cm=NULL) {
|
|
global $CFG, $USER, $OUTPUT;
|
|
|
|
if (!$cm) {
|
|
if (!$cm = get_coursemodule_from_instance('forum', $forum->id, $forum->course)) {
|
|
print_error('invalidcoursemodule');
|
|
}
|
|
}
|
|
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
|
|
if (empty($sort)) {
|
|
$sort = "d.timemodified DESC";
|
|
}
|
|
|
|
$olddiscussionlink = false;
|
|
|
|
// Sort out some defaults
|
|
if ($perpage <= 0) {
|
|
$perpage = 0;
|
|
$page = -1;
|
|
}
|
|
|
|
if ($maxdiscussions == 0) {
|
|
// all discussions - backwards compatibility
|
|
$page = -1;
|
|
$perpage = 0;
|
|
if ($displayformat == 'plain') {
|
|
$displayformat = 'header'; // Abbreviate display by default
|
|
}
|
|
|
|
} else if ($maxdiscussions > 0) {
|
|
$page = -1;
|
|
$perpage = $maxdiscussions;
|
|
}
|
|
|
|
$fullpost = false;
|
|
if ($displayformat == 'plain') {
|
|
$fullpost = true;
|
|
}
|
|
|
|
|
|
// Decide if current user is allowed to see ALL the current discussions or not
|
|
|
|
// First check the group stuff
|
|
if ($currentgroup == -1 or $groupmode == -1) {
|
|
$groupmode = groups_get_activity_groupmode($cm, $course);
|
|
$currentgroup = groups_get_activity_group($cm);
|
|
}
|
|
|
|
$groups = array(); //cache
|
|
|
|
// If the user can post discussions, then this is a good place to put the
|
|
// button for it. We do not show the button if we are showing site news
|
|
// and the current user is a guest.
|
|
|
|
$canstart = forum_user_can_post_discussion($forum, $currentgroup, $groupmode, $cm, $context);
|
|
if (!$canstart and $forum->type !== 'news') {
|
|
if (isguestuser() or !isloggedin()) {
|
|
$canstart = true;
|
|
}
|
|
if (!is_enrolled($context) and !is_viewing($context)) {
|
|
// allow guests and not-logged-in to see the button - they are prompted to log in after clicking the link
|
|
// normal users with temporary guest access see this button too, they are asked to enrol instead
|
|
// do not show the button to users with suspended enrolments here
|
|
$canstart = enrol_selfenrol_available($course->id);
|
|
}
|
|
}
|
|
|
|
if ($canstart) {
|
|
echo '<div class="singlebutton forumaddnew">';
|
|
echo "<form id=\"newdiscussionform\" method=\"get\" action=\"$CFG->wwwroot/mod/forum/post.php\">";
|
|
echo '<div>';
|
|
echo "<input type=\"hidden\" name=\"forum\" value=\"$forum->id\" />";
|
|
switch ($forum->type) {
|
|
case 'news':
|
|
case 'blog':
|
|
$buttonadd = get_string('addanewtopic', 'forum');
|
|
break;
|
|
case 'qanda':
|
|
$buttonadd = get_string('addanewquestion', 'forum');
|
|
break;
|
|
default:
|
|
$buttonadd = get_string('addanewdiscussion', 'forum');
|
|
break;
|
|
}
|
|
echo '<input type="submit" value="'.$buttonadd.'" />';
|
|
echo '</div>';
|
|
echo '</form>';
|
|
echo "</div>\n";
|
|
|
|
} else if (isguestuser() or !isloggedin() or $forum->type == 'news') {
|
|
// no button and no info
|
|
|
|
} else if ($groupmode and has_capability('mod/forum:startdiscussion', $context)) {
|
|
// inform users why they can not post new discussion
|
|
if ($currentgroup) {
|
|
echo $OUTPUT->notification(get_string('cannotadddiscussion', 'forum'));
|
|
} else {
|
|
echo $OUTPUT->notification(get_string('cannotadddiscussionall', 'forum'));
|
|
}
|
|
}
|
|
|
|
// Get all the recent discussions we're allowed to see
|
|
|
|
$getuserlastmodified = ($displayformat == 'header');
|
|
|
|
if (! $discussions = forum_get_discussions($cm, $sort, $fullpost, null, $maxdiscussions, $getuserlastmodified, $page, $perpage) ) {
|
|
echo '<div class="forumnodiscuss">';
|
|
if ($forum->type == 'news') {
|
|
echo '('.get_string('nonews', 'forum').')';
|
|
} else if ($forum->type == 'qanda') {
|
|
echo '('.get_string('noquestions','forum').')';
|
|
} else {
|
|
echo '('.get_string('nodiscussions', 'forum').')';
|
|
}
|
|
echo "</div>\n";
|
|
return;
|
|
}
|
|
|
|
// If we want paging
|
|
if ($page != -1) {
|
|
///Get the number of discussions found
|
|
$numdiscussions = forum_get_discussions_count($cm);
|
|
|
|
///Show the paging bar
|
|
echo $OUTPUT->paging_bar($numdiscussions, $page, $perpage, "view.php?f=$forum->id");
|
|
if ($numdiscussions > 1000) {
|
|
// saves some memory on sites with very large forums
|
|
$replies = forum_count_discussion_replies($forum->id, $sort, $maxdiscussions, $page, $perpage);
|
|
} else {
|
|
$replies = forum_count_discussion_replies($forum->id);
|
|
}
|
|
|
|
} else {
|
|
$replies = forum_count_discussion_replies($forum->id);
|
|
|
|
if ($maxdiscussions > 0 and $maxdiscussions <= count($discussions)) {
|
|
$olddiscussionlink = true;
|
|
}
|
|
}
|
|
|
|
$canviewparticipants = has_capability('moodle/course:viewparticipants',$context);
|
|
|
|
$strdatestring = get_string('strftimerecentfull');
|
|
|
|
// Check if the forum is tracked.
|
|
if ($cantrack = forum_tp_can_track_forums($forum)) {
|
|
$forumtracked = forum_tp_is_tracked($forum);
|
|
} else {
|
|
$forumtracked = false;
|
|
}
|
|
|
|
if ($forumtracked) {
|
|
$unreads = forum_get_discussions_unread($cm);
|
|
} else {
|
|
$unreads = array();
|
|
}
|
|
|
|
if ($displayformat == 'header') {
|
|
echo '<table cellspacing="0" class="forumheaderlist">';
|
|
echo '<thead>';
|
|
echo '<tr>';
|
|
echo '<th class="header topic" scope="col">'.get_string('discussion', 'forum').'</th>';
|
|
echo '<th class="header author" colspan="2" scope="col">'.get_string('startedby', 'forum').'</th>';
|
|
if ($groupmode > 0) {
|
|
echo '<th class="header group" scope="col">'.get_string('group').'</th>';
|
|
}
|
|
if (has_capability('mod/forum:viewdiscussion', $context)) {
|
|
echo '<th class="header replies" scope="col">'.get_string('replies', 'forum').'</th>';
|
|
// If the forum can be tracked, display the unread column.
|
|
if ($cantrack) {
|
|
echo '<th class="header replies" scope="col">'.get_string('unread', 'forum');
|
|
if ($forumtracked) {
|
|
echo ' <a title="'.get_string('markallread', 'forum').
|
|
'" href="'.$CFG->wwwroot.'/mod/forum/markposts.php?f='.
|
|
$forum->id.'&mark=read&returnpage=view.php">'.
|
|
'<img src="'.$OUTPUT->pix_url('t/clear') . '" class="iconsmall" alt="'.get_string('markallread', 'forum').'" /></a>';
|
|
}
|
|
echo '</th>';
|
|
}
|
|
}
|
|
echo '<th class="header lastpost" scope="col">'.get_string('lastpost', 'forum').'</th>';
|
|
echo '</tr>';
|
|
echo '</thead>';
|
|
echo '<tbody>';
|
|
}
|
|
|
|
foreach ($discussions as $discussion) {
|
|
if (!empty($replies[$discussion->discussion])) {
|
|
$discussion->replies = $replies[$discussion->discussion]->replies;
|
|
$discussion->lastpostid = $replies[$discussion->discussion]->lastpostid;
|
|
} else {
|
|
$discussion->replies = 0;
|
|
}
|
|
|
|
// SPECIAL CASE: The front page can display a news item post to non-logged in users.
|
|
// All posts are read in this case.
|
|
if (!$forumtracked) {
|
|
$discussion->unread = '-';
|
|
} else if (empty($USER)) {
|
|
$discussion->unread = 0;
|
|
} else {
|
|
if (empty($unreads[$discussion->discussion])) {
|
|
$discussion->unread = 0;
|
|
} else {
|
|
$discussion->unread = $unreads[$discussion->discussion];
|
|
}
|
|
}
|
|
|
|
if (isloggedin()) {
|
|
$ownpost = ($discussion->userid == $USER->id);
|
|
} else {
|
|
$ownpost=false;
|
|
}
|
|
// Use discussion name instead of subject of first post
|
|
$discussion->subject = $discussion->name;
|
|
|
|
switch ($displayformat) {
|
|
case 'header':
|
|
if ($groupmode > 0) {
|
|
if (isset($groups[$discussion->groupid])) {
|
|
$group = $groups[$discussion->groupid];
|
|
} else {
|
|
$group = $groups[$discussion->groupid] = groups_get_group($discussion->groupid);
|
|
}
|
|
} else {
|
|
$group = -1;
|
|
}
|
|
forum_print_discussion_header($discussion, $forum, $group, $strdatestring, $cantrack, $forumtracked,
|
|
$canviewparticipants, $context);
|
|
break;
|
|
default:
|
|
$link = false;
|
|
|
|
if ($discussion->replies) {
|
|
$link = true;
|
|
} else {
|
|
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
$link = forum_user_can_post($forum, $discussion, $USER, $cm, $course, $modcontext);
|
|
}
|
|
|
|
$discussion->forum = $forum->id;
|
|
|
|
forum_print_post($discussion, $discussion, $forum, $cm, $course, $ownpost, 0, $link, false);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ($displayformat == "header") {
|
|
echo '</tbody>';
|
|
echo '</table>';
|
|
}
|
|
|
|
if ($olddiscussionlink) {
|
|
if ($forum->type == 'news') {
|
|
$strolder = get_string('oldertopics', 'forum');
|
|
} else {
|
|
$strolder = get_string('olderdiscussions', 'forum');
|
|
}
|
|
echo '<div class="forumolddiscuss">';
|
|
echo '<a href="'.$CFG->wwwroot.'/mod/forum/view.php?f='.$forum->id.'&showall=1">';
|
|
echo $strolder.'</a> ...</div>';
|
|
}
|
|
|
|
if ($page != -1) { ///Show the paging bar
|
|
echo $OUTPUT->paging_bar($numdiscussions, $page, $perpage, "view.php?f=$forum->id");
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Prints a forum discussion
|
|
*
|
|
* @uses CONTEXT_MODULE
|
|
* @uses FORUM_MODE_FLATNEWEST
|
|
* @uses FORUM_MODE_FLATOLDEST
|
|
* @uses FORUM_MODE_THREADED
|
|
* @uses FORUM_MODE_NESTED
|
|
* @param stdClass $course
|
|
* @param stdClass $cm
|
|
* @param stdClass $forum
|
|
* @param stdClass $discussion
|
|
* @param stdClass $post
|
|
* @param int $mode
|
|
* @param mixed $canreply
|
|
* @param bool $canrate
|
|
*/
|
|
function forum_print_discussion($course, $cm, $forum, $discussion, $post, $mode, $canreply=NULL, $canrate=false) {
|
|
global $USER, $CFG;
|
|
|
|
require_once($CFG->dirroot.'/rating/lib.php');
|
|
|
|
$ownpost = (isloggedin() && $USER->id == $post->userid);
|
|
|
|
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
if ($canreply === NULL) {
|
|
$reply = forum_user_can_post($forum, $discussion, $USER, $cm, $course, $modcontext);
|
|
} else {
|
|
$reply = $canreply;
|
|
}
|
|
|
|
// $cm holds general cache for forum functions
|
|
$cm->cache = new stdClass;
|
|
$cm->cache->groups = groups_get_all_groups($course->id, 0, $cm->groupingid);
|
|
$cm->cache->usersgroups = array();
|
|
|
|
$posters = array();
|
|
|
|
// preload all posts - TODO: improve...
|
|
if ($mode == FORUM_MODE_FLATNEWEST) {
|
|
$sort = "p.created DESC";
|
|
} else {
|
|
$sort = "p.created ASC";
|
|
}
|
|
|
|
$forumtracked = forum_tp_is_tracked($forum);
|
|
$posts = forum_get_all_discussion_posts($discussion->id, $sort, $forumtracked);
|
|
$post = $posts[$post->id];
|
|
|
|
foreach ($posts as $pid=>$p) {
|
|
$posters[$p->userid] = $p->userid;
|
|
}
|
|
|
|
// preload all groups of ppl that posted in this discussion
|
|
if ($postersgroups = groups_get_all_groups($course->id, $posters, $cm->groupingid, 'gm.id, gm.groupid, gm.userid')) {
|
|
foreach($postersgroups as $pg) {
|
|
if (!isset($cm->cache->usersgroups[$pg->userid])) {
|
|
$cm->cache->usersgroups[$pg->userid] = array();
|
|
}
|
|
$cm->cache->usersgroups[$pg->userid][$pg->groupid] = $pg->groupid;
|
|
}
|
|
unset($postersgroups);
|
|
}
|
|
|
|
//load ratings
|
|
if ($forum->assessed != RATING_AGGREGATE_NONE) {
|
|
$ratingoptions = new stdClass;
|
|
$ratingoptions->context = $modcontext;
|
|
$ratingoptions->component = 'mod_forum';
|
|
$ratingoptions->ratingarea = 'post';
|
|
$ratingoptions->items = $posts;
|
|
$ratingoptions->aggregate = $forum->assessed;//the aggregation method
|
|
$ratingoptions->scaleid = $forum->scale;
|
|
$ratingoptions->userid = $USER->id;
|
|
if ($forum->type == 'single' or !$discussion->id) {
|
|
$ratingoptions->returnurl = "$CFG->wwwroot/mod/forum/view.php?id=$cm->id";
|
|
} else {
|
|
$ratingoptions->returnurl = "$CFG->wwwroot/mod/forum/discuss.php?d=$discussion->id";
|
|
}
|
|
$ratingoptions->assesstimestart = $forum->assesstimestart;
|
|
$ratingoptions->assesstimefinish = $forum->assesstimefinish;
|
|
|
|
$rm = new rating_manager();
|
|
$posts = $rm->get_ratings($ratingoptions);
|
|
}
|
|
|
|
|
|
$post->forum = $forum->id; // Add the forum id to the post object, later used by forum_print_post
|
|
$post->forumtype = $forum->type;
|
|
|
|
$post->subject = format_string($post->subject);
|
|
|
|
$postread = !empty($post->postread);
|
|
|
|
forum_print_post($post, $discussion, $forum, $cm, $course, $ownpost, $reply, false,
|
|
'', '', $postread, true, $forumtracked);
|
|
|
|
switch ($mode) {
|
|
case FORUM_MODE_FLATOLDEST :
|
|
case FORUM_MODE_FLATNEWEST :
|
|
default:
|
|
forum_print_posts_flat($course, $cm, $forum, $discussion, $post, $mode, $reply, $forumtracked, $posts);
|
|
break;
|
|
|
|
case FORUM_MODE_THREADED :
|
|
forum_print_posts_threaded($course, $cm, $forum, $discussion, $post, 0, $reply, $forumtracked, $posts);
|
|
break;
|
|
|
|
case FORUM_MODE_NESTED :
|
|
forum_print_posts_nested($course, $cm, $forum, $discussion, $post, $reply, $forumtracked, $posts);
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* @global object
|
|
* @global object
|
|
* @uses FORUM_MODE_FLATNEWEST
|
|
* @param object $course
|
|
* @param object $cm
|
|
* @param object $forum
|
|
* @param object $discussion
|
|
* @param object $post
|
|
* @param object $mode
|
|
* @param bool $reply
|
|
* @param bool $forumtracked
|
|
* @param array $posts
|
|
* @return void
|
|
*/
|
|
function forum_print_posts_flat($course, &$cm, $forum, $discussion, $post, $mode, $reply, $forumtracked, $posts) {
|
|
global $USER, $CFG;
|
|
|
|
$link = false;
|
|
|
|
if ($mode == FORUM_MODE_FLATNEWEST) {
|
|
$sort = "ORDER BY created DESC";
|
|
} else {
|
|
$sort = "ORDER BY created ASC";
|
|
}
|
|
|
|
foreach ($posts as $post) {
|
|
if (!$post->parent) {
|
|
continue;
|
|
}
|
|
$post->subject = format_string($post->subject);
|
|
$ownpost = ($USER->id == $post->userid);
|
|
|
|
$postread = !empty($post->postread);
|
|
|
|
forum_print_post($post, $discussion, $forum, $cm, $course, $ownpost, $reply, $link,
|
|
'', '', $postread, true, $forumtracked);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @todo Document this function
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @uses CONTEXT_MODULE
|
|
* @return void
|
|
*/
|
|
function forum_print_posts_threaded($course, &$cm, $forum, $discussion, $parent, $depth, $reply, $forumtracked, $posts) {
|
|
global $USER, $CFG;
|
|
|
|
$link = false;
|
|
|
|
if (!empty($posts[$parent->id]->children)) {
|
|
$posts = $posts[$parent->id]->children;
|
|
|
|
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
$canviewfullnames = has_capability('moodle/site:viewfullnames', $modcontext);
|
|
|
|
foreach ($posts as $post) {
|
|
|
|
echo '<div class="indent">';
|
|
if ($depth > 0) {
|
|
$ownpost = ($USER->id == $post->userid);
|
|
$post->subject = format_string($post->subject);
|
|
|
|
$postread = !empty($post->postread);
|
|
|
|
forum_print_post($post, $discussion, $forum, $cm, $course, $ownpost, $reply, $link,
|
|
'', '', $postread, true, $forumtracked);
|
|
} else {
|
|
if (!forum_user_can_see_post($forum, $discussion, $post, NULL, $cm)) {
|
|
echo "</div>\n";
|
|
continue;
|
|
}
|
|
$by = new stdClass();
|
|
$by->name = fullname($post, $canviewfullnames);
|
|
$by->date = userdate($post->modified);
|
|
|
|
if ($forumtracked) {
|
|
if (!empty($post->postread)) {
|
|
$style = '<span class="forumthread read">';
|
|
} else {
|
|
$style = '<span class="forumthread unread">';
|
|
}
|
|
} else {
|
|
$style = '<span class="forumthread">';
|
|
}
|
|
echo $style."<a name=\"$post->id\"></a>".
|
|
"<a href=\"discuss.php?d=$post->discussion&parent=$post->id\">".format_string($post->subject,true)."</a> ";
|
|
print_string("bynameondate", "forum", $by);
|
|
echo "</span>";
|
|
}
|
|
|
|
forum_print_posts_threaded($course, $cm, $forum, $discussion, $post, $depth-1, $reply, $forumtracked, $posts);
|
|
echo "</div>\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @todo Document this function
|
|
* @global object
|
|
* @global object
|
|
* @return void
|
|
*/
|
|
function forum_print_posts_nested($course, &$cm, $forum, $discussion, $parent, $reply, $forumtracked, $posts) {
|
|
global $USER, $CFG;
|
|
|
|
$link = false;
|
|
|
|
if (!empty($posts[$parent->id]->children)) {
|
|
$posts = $posts[$parent->id]->children;
|
|
|
|
foreach ($posts as $post) {
|
|
|
|
echo '<div class="indent">';
|
|
if (!isloggedin()) {
|
|
$ownpost = false;
|
|
} else {
|
|
$ownpost = ($USER->id == $post->userid);
|
|
}
|
|
|
|
$post->subject = format_string($post->subject);
|
|
$postread = !empty($post->postread);
|
|
|
|
forum_print_post($post, $discussion, $forum, $cm, $course, $ownpost, $reply, $link,
|
|
'', '', $postread, true, $forumtracked);
|
|
forum_print_posts_nested($course, $cm, $forum, $discussion, $post, $reply, $forumtracked, $posts);
|
|
echo "</div>\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns all forum posts since a given time in specified forum.
|
|
*
|
|
* @todo Document this functions args
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
*/
|
|
function forum_get_recent_mod_activity(&$activities, &$index, $timestart, $courseid, $cmid, $userid=0, $groupid=0) {
|
|
global $CFG, $COURSE, $USER, $DB;
|
|
|
|
if ($COURSE->id == $courseid) {
|
|
$course = $COURSE;
|
|
} else {
|
|
$course = $DB->get_record('course', array('id' => $courseid));
|
|
}
|
|
|
|
$modinfo = get_fast_modinfo($course);
|
|
|
|
$cm = $modinfo->cms[$cmid];
|
|
$params = array($timestart, $cm->instance);
|
|
|
|
if ($userid) {
|
|
$userselect = "AND u.id = ?";
|
|
$params[] = $userid;
|
|
} else {
|
|
$userselect = "";
|
|
}
|
|
|
|
if ($groupid) {
|
|
$groupselect = "AND gm.groupid = ?";
|
|
$groupjoin = "JOIN {groups_members} gm ON gm.userid=u.id";
|
|
$params[] = $groupid;
|
|
} else {
|
|
$groupselect = "";
|
|
$groupjoin = "";
|
|
}
|
|
|
|
if (!$posts = $DB->get_records_sql("SELECT p.*, f.type AS forumtype, d.forum, d.groupid,
|
|
d.timestart, d.timeend, d.userid AS duserid,
|
|
u.firstname, u.lastname, u.email, u.picture, u.imagealt, u.email
|
|
FROM {forum_posts} p
|
|
JOIN {forum_discussions} d ON d.id = p.discussion
|
|
JOIN {forum} f ON f.id = d.forum
|
|
JOIN {user} u ON u.id = p.userid
|
|
$groupjoin
|
|
WHERE p.created > ? AND f.id = ?
|
|
$userselect $groupselect
|
|
ORDER BY p.id ASC", $params)) { // order by initial posting date
|
|
return;
|
|
}
|
|
|
|
$groupmode = groups_get_activity_groupmode($cm, $course);
|
|
$cm_context = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
$viewhiddentimed = has_capability('mod/forum:viewhiddentimedposts', $cm_context);
|
|
$accessallgroups = has_capability('moodle/site:accessallgroups', $cm_context);
|
|
|
|
if (is_null($modinfo->groups)) {
|
|
$modinfo->groups = groups_get_user_groups($course->id); // load all my groups and cache it in modinfo
|
|
}
|
|
|
|
$printposts = array();
|
|
foreach ($posts as $post) {
|
|
|
|
if (!empty($CFG->forum_enabletimedposts) and $USER->id != $post->duserid
|
|
and (($post->timestart > 0 and $post->timestart > time()) or ($post->timeend > 0 and $post->timeend < time()))) {
|
|
if (!$viewhiddentimed) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if ($groupmode) {
|
|
if ($post->groupid == -1 or $groupmode == VISIBLEGROUPS or $accessallgroups) {
|
|
// oki (Open discussions have groupid -1)
|
|
} else {
|
|
// separate mode
|
|
if (isguestuser()) {
|
|
// shortcut
|
|
continue;
|
|
}
|
|
|
|
if (!array_key_exists($post->groupid, $modinfo->groups[0])) {
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
$printposts[] = $post;
|
|
}
|
|
|
|
if (!$printposts) {
|
|
return;
|
|
}
|
|
|
|
$aname = format_string($cm->name,true);
|
|
|
|
foreach ($printposts as $post) {
|
|
$tmpactivity = new stdClass();
|
|
|
|
$tmpactivity->type = 'forum';
|
|
$tmpactivity->cmid = $cm->id;
|
|
$tmpactivity->name = $aname;
|
|
$tmpactivity->sectionnum = $cm->sectionnum;
|
|
$tmpactivity->timestamp = $post->modified;
|
|
|
|
$tmpactivity->content = new stdClass();
|
|
$tmpactivity->content->id = $post->id;
|
|
$tmpactivity->content->discussion = $post->discussion;
|
|
$tmpactivity->content->subject = format_string($post->subject);
|
|
$tmpactivity->content->parent = $post->parent;
|
|
|
|
$tmpactivity->user = new stdClass();
|
|
$tmpactivity->user->id = $post->userid;
|
|
$tmpactivity->user->firstname = $post->firstname;
|
|
$tmpactivity->user->lastname = $post->lastname;
|
|
$tmpactivity->user->picture = $post->picture;
|
|
$tmpactivity->user->imagealt = $post->imagealt;
|
|
$tmpactivity->user->email = $post->email;
|
|
|
|
$activities[$index++] = $tmpactivity;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* @todo Document this function
|
|
* @global object
|
|
*/
|
|
function forum_print_recent_mod_activity($activity, $courseid, $detail, $modnames, $viewfullnames) {
|
|
global $CFG, $OUTPUT;
|
|
|
|
if ($activity->content->parent) {
|
|
$class = 'reply';
|
|
} else {
|
|
$class = 'discussion';
|
|
}
|
|
|
|
echo '<table border="0" cellpadding="3" cellspacing="0" class="forum-recent">';
|
|
|
|
echo "<tr><td class=\"userpicture\" valign=\"top\">";
|
|
echo $OUTPUT->user_picture($activity->user, array('courseid'=>$courseid));
|
|
echo "</td><td class=\"$class\">";
|
|
|
|
echo '<div class="title">';
|
|
if ($detail) {
|
|
$aname = s($activity->name);
|
|
echo "<img src=\"" . $OUTPUT->pix_url('icon', $activity->type) . "\" ".
|
|
"class=\"icon\" alt=\"{$aname}\" />";
|
|
}
|
|
echo "<a href=\"$CFG->wwwroot/mod/forum/discuss.php?d={$activity->content->discussion}"
|
|
."#p{$activity->content->id}\">{$activity->content->subject}</a>";
|
|
echo '</div>';
|
|
|
|
echo '<div class="user">';
|
|
$fullname = fullname($activity->user, $viewfullnames);
|
|
echo "<a href=\"$CFG->wwwroot/user/view.php?id={$activity->user->id}&course=$courseid\">"
|
|
."{$fullname}</a> - ".userdate($activity->timestamp);
|
|
echo '</div>';
|
|
echo "</td></tr></table>";
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* recursively sets the discussion field to $discussionid on $postid and all its children
|
|
* used when pruning a post
|
|
*
|
|
* @global object
|
|
* @param int $postid
|
|
* @param int $discussionid
|
|
* @return bool
|
|
*/
|
|
function forum_change_discussionid($postid, $discussionid) {
|
|
global $DB;
|
|
$DB->set_field('forum_posts', 'discussion', $discussionid, array('id' => $postid));
|
|
if ($posts = $DB->get_records('forum_posts', array('parent' => $postid))) {
|
|
foreach ($posts as $post) {
|
|
forum_change_discussionid($post->id, $discussionid);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Prints the editing button on subscribers page
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param int $courseid
|
|
* @param int $forumid
|
|
* @return string
|
|
*/
|
|
function forum_update_subscriptions_button($courseid, $forumid) {
|
|
global $CFG, $USER;
|
|
|
|
if (!empty($USER->subscriptionsediting)) {
|
|
$string = get_string('turneditingoff');
|
|
$edit = "off";
|
|
} else {
|
|
$string = get_string('turneditingon');
|
|
$edit = "on";
|
|
}
|
|
|
|
return "<form method=\"get\" action=\"$CFG->wwwroot/mod/forum/subscribers.php\">".
|
|
"<input type=\"hidden\" name=\"id\" value=\"$forumid\" />".
|
|
"<input type=\"hidden\" name=\"edit\" value=\"$edit\" />".
|
|
"<input type=\"submit\" value=\"$string\" /></form>";
|
|
}
|
|
|
|
/**
|
|
* This function gets run whenever user is enrolled into course
|
|
*
|
|
* @param stdClass $cp
|
|
* @return void
|
|
*/
|
|
function forum_user_enrolled($cp) {
|
|
global $DB;
|
|
|
|
// NOTE: this has to be as fast as possible - we do not want to slow down enrolments!
|
|
// Originally there used to be 'mod/forum:initialsubscriptions' which was
|
|
// introduced because we did not have enrolment information in earlier versions...
|
|
|
|
$sql = "SELECT f.id
|
|
FROM {forum} f
|
|
LEFT JOIN {forum_subscriptions} fs ON (fs.forum = f.id AND fs.userid = :userid)
|
|
WHERE f.course = :courseid AND f.forcesubscribe = :initial AND fs.id IS NULL";
|
|
$params = array('courseid'=>$cp->courseid, 'userid'=>$cp->userid, 'initial'=>FORUM_INITIALSUBSCRIBE);
|
|
|
|
$forums = $DB->get_records_sql($sql, $params);
|
|
foreach ($forums as $forum) {
|
|
forum_subscribe($cp->userid, $forum->id);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This function gets run whenever user is unenrolled from course
|
|
*
|
|
* @param stdClass $cp
|
|
* @return void
|
|
*/
|
|
function forum_user_unenrolled($cp) {
|
|
global $DB;
|
|
|
|
// NOTE: this has to be as fast as possible!
|
|
|
|
if ($cp->lastenrol) {
|
|
$params = array('userid'=>$cp->userid, 'courseid'=>$cp->courseid);
|
|
$forumselect = "IN (SELECT f.id FROM {forum} f WHERE f.course = :courseid)";
|
|
|
|
$DB->delete_records_select('forum_subscriptions', "userid = :userid AND forum $forumselect", $params);
|
|
$DB->delete_records_select('forum_track_prefs', "userid = :userid AND forumid $forumselect", $params);
|
|
$DB->delete_records_select('forum_read', "userid = :userid AND forumid $forumselect", $params);
|
|
}
|
|
}
|
|
|
|
// Functions to do with read tracking.
|
|
|
|
/**
|
|
* Mark posts as read.
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param object $user object
|
|
* @param array $postids array of post ids
|
|
* @return boolean success
|
|
*/
|
|
function forum_tp_mark_posts_read($user, $postids) {
|
|
global $CFG, $DB;
|
|
|
|
if (!forum_tp_can_track_forums(false, $user)) {
|
|
return true;
|
|
}
|
|
|
|
$status = true;
|
|
|
|
$now = time();
|
|
$cutoffdate = $now - ($CFG->forum_oldpostdays * 24 * 3600);
|
|
|
|
if (empty($postids)) {
|
|
return true;
|
|
|
|
} else if (count($postids) > 200) {
|
|
while ($part = array_splice($postids, 0, 200)) {
|
|
$status = forum_tp_mark_posts_read($user, $part) && $status;
|
|
}
|
|
return $status;
|
|
}
|
|
|
|
list($usql, $params) = $DB->get_in_or_equal($postids);
|
|
$params[] = $user->id;
|
|
|
|
$sql = "SELECT id
|
|
FROM {forum_read}
|
|
WHERE postid $usql AND userid = ?";
|
|
if ($existing = $DB->get_records_sql($sql, $params)) {
|
|
$existing = array_keys($existing);
|
|
} else {
|
|
$existing = array();
|
|
}
|
|
|
|
$new = array_diff($postids, $existing);
|
|
|
|
if ($new) {
|
|
list($usql, $new_params) = $DB->get_in_or_equal($new);
|
|
$params = array($user->id, $now, $now, $user->id);
|
|
$params = array_merge($params, $new_params);
|
|
$params[] = $cutoffdate;
|
|
|
|
$sql = "INSERT INTO {forum_read} (userid, postid, discussionid, forumid, firstread, lastread)
|
|
|
|
SELECT ?, p.id, p.discussion, d.forum, ?, ?
|
|
FROM {forum_posts} p
|
|
JOIN {forum_discussions} d ON d.id = p.discussion
|
|
JOIN {forum} f ON f.id = d.forum
|
|
LEFT JOIN {forum_track_prefs} tf ON (tf.userid = ? AND tf.forumid = f.id)
|
|
WHERE p.id $usql
|
|
AND p.modified >= ?
|
|
AND (f.trackingtype = ".FORUM_TRACKING_ON."
|
|
OR (f.trackingtype = ".FORUM_TRACKING_OPTIONAL." AND tf.id IS NULL))";
|
|
$status = $DB->execute($sql, $params) && $status;
|
|
}
|
|
|
|
if ($existing) {
|
|
list($usql, $new_params) = $DB->get_in_or_equal($existing);
|
|
$params = array($now, $user->id);
|
|
$params = array_merge($params, $new_params);
|
|
|
|
$sql = "UPDATE {forum_read}
|
|
SET lastread = ?
|
|
WHERE userid = ? AND postid $usql";
|
|
$status = $DB->execute($sql, $params) && $status;
|
|
}
|
|
|
|
return $status;
|
|
}
|
|
|
|
/**
|
|
* Mark post as read.
|
|
* @global object
|
|
* @global object
|
|
* @param int $userid
|
|
* @param int $postid
|
|
*/
|
|
function forum_tp_add_read_record($userid, $postid) {
|
|
global $CFG, $DB;
|
|
|
|
$now = time();
|
|
$cutoffdate = $now - ($CFG->forum_oldpostdays * 24 * 3600);
|
|
|
|
if (!$DB->record_exists('forum_read', array('userid' => $userid, 'postid' => $postid))) {
|
|
$sql = "INSERT INTO {forum_read} (userid, postid, discussionid, forumid, firstread, lastread)
|
|
|
|
SELECT ?, p.id, p.discussion, d.forum, ?, ?
|
|
FROM {forum_posts} p
|
|
JOIN {forum_discussions} d ON d.id = p.discussion
|
|
WHERE p.id = ? AND p.modified >= ?";
|
|
return $DB->execute($sql, array($userid, $now, $now, $postid, $cutoffdate));
|
|
|
|
} else {
|
|
$sql = "UPDATE {forum_read}
|
|
SET lastread = ?
|
|
WHERE userid = ? AND postid = ?";
|
|
return $DB->execute($sql, array($now, $userid, $userid));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns all records in the 'forum_read' table matching the passed keys, indexed
|
|
* by userid.
|
|
*
|
|
* @global object
|
|
* @param int $userid
|
|
* @param int $postid
|
|
* @param int $discussionid
|
|
* @param int $forumid
|
|
* @return array
|
|
*/
|
|
function forum_tp_get_read_records($userid=-1, $postid=-1, $discussionid=-1, $forumid=-1) {
|
|
global $DB;
|
|
$select = '';
|
|
$params = array();
|
|
|
|
if ($userid > -1) {
|
|
if ($select != '') $select .= ' AND ';
|
|
$select .= 'userid = ?';
|
|
$params[] = $userid;
|
|
}
|
|
if ($postid > -1) {
|
|
if ($select != '') $select .= ' AND ';
|
|
$select .= 'postid = ?';
|
|
$params[] = $postid;
|
|
}
|
|
if ($discussionid > -1) {
|
|
if ($select != '') $select .= ' AND ';
|
|
$select .= 'discussionid = ?';
|
|
$params[] = $discussionid;
|
|
}
|
|
if ($forumid > -1) {
|
|
if ($select != '') $select .= ' AND ';
|
|
$select .= 'forumid = ?';
|
|
$params[] = $forumid;
|
|
}
|
|
|
|
return $DB->get_records_select('forum_read', $select, $params);
|
|
}
|
|
|
|
/**
|
|
* Returns all read records for the provided user and discussion, indexed by postid.
|
|
*
|
|
* @global object
|
|
* @param inti $userid
|
|
* @param int $discussionid
|
|
*/
|
|
function forum_tp_get_discussion_read_records($userid, $discussionid) {
|
|
global $DB;
|
|
$select = 'userid = ? AND discussionid = ?';
|
|
$fields = 'postid, firstread, lastread';
|
|
return $DB->get_records_select('forum_read', $select, array($userid, $discussionid), '', $fields);
|
|
}
|
|
|
|
/**
|
|
* If its an old post, do nothing. If the record exists, the maintenance will clear it up later.
|
|
*
|
|
* @return bool
|
|
*/
|
|
function forum_tp_mark_post_read($userid, $post, $forumid) {
|
|
if (!forum_tp_is_post_old($post)) {
|
|
return forum_tp_add_read_record($userid, $post->id);
|
|
} else {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Marks a whole forum as read, for a given user
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param object $user
|
|
* @param int $forumid
|
|
* @param int|bool $groupid
|
|
* @return bool
|
|
*/
|
|
function forum_tp_mark_forum_read($user, $forumid, $groupid=false) {
|
|
global $CFG, $DB;
|
|
|
|
$cutoffdate = time() - ($CFG->forum_oldpostdays*24*60*60);
|
|
|
|
$groupsel = "";
|
|
$params = array($user->id, $forumid, $cutoffdate);
|
|
|
|
if ($groupid !== false) {
|
|
$groupsel = " AND (d.groupid = ? OR d.groupid = -1)";
|
|
$params[] = $groupid;
|
|
}
|
|
|
|
$sql = "SELECT p.id
|
|
FROM {forum_posts} p
|
|
LEFT JOIN {forum_discussions} d ON d.id = p.discussion
|
|
LEFT JOIN {forum_read} r ON (r.postid = p.id AND r.userid = ?)
|
|
WHERE d.forum = ?
|
|
AND p.modified >= ? AND r.id is NULL
|
|
$groupsel";
|
|
|
|
if ($posts = $DB->get_records_sql($sql, $params)) {
|
|
$postids = array_keys($posts);
|
|
return forum_tp_mark_posts_read($user, $postids);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Marks a whole discussion as read, for a given user
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param object $user
|
|
* @param int $discussionid
|
|
* @return bool
|
|
*/
|
|
function forum_tp_mark_discussion_read($user, $discussionid) {
|
|
global $CFG, $DB;
|
|
|
|
$cutoffdate = time() - ($CFG->forum_oldpostdays*24*60*60);
|
|
|
|
$sql = "SELECT p.id
|
|
FROM {forum_posts} p
|
|
LEFT JOIN {forum_read} r ON (r.postid = p.id AND r.userid = ?)
|
|
WHERE p.discussion = ?
|
|
AND p.modified >= ? AND r.id is NULL";
|
|
|
|
if ($posts = $DB->get_records_sql($sql, array($user->id, $discussionid, $cutoffdate))) {
|
|
$postids = array_keys($posts);
|
|
return forum_tp_mark_posts_read($user, $postids);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @global object
|
|
* @param int $userid
|
|
* @param object $post
|
|
*/
|
|
function forum_tp_is_post_read($userid, $post) {
|
|
global $DB;
|
|
return (forum_tp_is_post_old($post) ||
|
|
$DB->record_exists('forum_read', array('userid' => $userid, 'postid' => $post->id)));
|
|
}
|
|
|
|
/**
|
|
* @global object
|
|
* @param object $post
|
|
* @param int $time Defautls to time()
|
|
*/
|
|
function forum_tp_is_post_old($post, $time=null) {
|
|
global $CFG;
|
|
|
|
if (is_null($time)) {
|
|
$time = time();
|
|
}
|
|
return ($post->modified < ($time - ($CFG->forum_oldpostdays * 24 * 3600)));
|
|
}
|
|
|
|
/**
|
|
* Returns the count of records for the provided user and discussion.
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param int $userid
|
|
* @param int $discussionid
|
|
* @return bool
|
|
*/
|
|
function forum_tp_count_discussion_read_records($userid, $discussionid) {
|
|
global $CFG, $DB;
|
|
|
|
$cutoffdate = isset($CFG->forum_oldpostdays) ? (time() - ($CFG->forum_oldpostdays*24*60*60)) : 0;
|
|
|
|
$sql = 'SELECT COUNT(DISTINCT p.id) '.
|
|
'FROM {forum_discussions} d '.
|
|
'LEFT JOIN {forum_read} r ON d.id = r.discussionid AND r.userid = ? '.
|
|
'LEFT JOIN {forum_posts} p ON p.discussion = d.id '.
|
|
'AND (p.modified < ? OR p.id = r.postid) '.
|
|
'WHERE d.id = ? ';
|
|
|
|
return ($DB->count_records_sql($sql, array($userid, $cutoffdate, $discussionid)));
|
|
}
|
|
|
|
/**
|
|
* Returns the count of records for the provided user and discussion.
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param int $userid
|
|
* @param int $discussionid
|
|
* @return int
|
|
*/
|
|
function forum_tp_count_discussion_unread_posts($userid, $discussionid) {
|
|
global $CFG, $DB;
|
|
|
|
$cutoffdate = isset($CFG->forum_oldpostdays) ? (time() - ($CFG->forum_oldpostdays*24*60*60)) : 0;
|
|
|
|
$sql = 'SELECT COUNT(p.id) '.
|
|
'FROM {forum_posts} p '.
|
|
'LEFT JOIN {forum_read} r ON r.postid = p.id AND r.userid = ? '.
|
|
'WHERE p.discussion = ? '.
|
|
'AND p.modified >= ? AND r.id is NULL';
|
|
|
|
return $DB->count_records_sql($sql, array($userid, $cutoffdate, $discussionid));
|
|
}
|
|
|
|
/**
|
|
* Returns the count of posts for the provided forum and [optionally] group.
|
|
* @global object
|
|
* @global object
|
|
* @param int $forumid
|
|
* @param int|bool $groupid
|
|
* @return int
|
|
*/
|
|
function forum_tp_count_forum_posts($forumid, $groupid=false) {
|
|
global $CFG, $DB;
|
|
$params = array($forumid);
|
|
$sql = 'SELECT COUNT(*) '.
|
|
'FROM {forum_posts} fp,{forum_discussions} fd '.
|
|
'WHERE fd.forum = ? AND fp.discussion = fd.id';
|
|
if ($groupid !== false) {
|
|
$sql .= ' AND (fd.groupid = ? OR fd.groupid = -1)';
|
|
$params[] = $groupid;
|
|
}
|
|
$count = $DB->count_records_sql($sql, $params);
|
|
|
|
|
|
return $count;
|
|
}
|
|
|
|
/**
|
|
* Returns the count of records for the provided user and forum and [optionally] group.
|
|
* @global object
|
|
* @global object
|
|
* @param int $userid
|
|
* @param int $forumid
|
|
* @param int|bool $groupid
|
|
* @return int
|
|
*/
|
|
function forum_tp_count_forum_read_records($userid, $forumid, $groupid=false) {
|
|
global $CFG, $DB;
|
|
|
|
$cutoffdate = time() - ($CFG->forum_oldpostdays*24*60*60);
|
|
|
|
$groupsel = '';
|
|
$params = array($userid, $forumid, $cutoffdate);
|
|
if ($groupid !== false) {
|
|
$groupsel = "AND (d.groupid = ? OR d.groupid = -1)";
|
|
$params[] = $groupid;
|
|
}
|
|
|
|
$sql = "SELECT COUNT(p.id)
|
|
FROM {forum_posts} p
|
|
JOIN {forum_discussions} d ON d.id = p.discussion
|
|
LEFT JOIN {forum_read} r ON (r.postid = p.id AND r.userid= ?)
|
|
WHERE d.forum = ?
|
|
AND (p.modified < $cutoffdate OR (p.modified >= ? AND r.id IS NOT NULL))
|
|
$groupsel";
|
|
|
|
return $DB->get_field_sql($sql, $params);
|
|
}
|
|
|
|
/**
|
|
* Returns the count of records for the provided user and course.
|
|
* Please note that group access is ignored!
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param int $userid
|
|
* @param int $courseid
|
|
* @return array
|
|
*/
|
|
function forum_tp_get_course_unread_posts($userid, $courseid) {
|
|
global $CFG, $DB;
|
|
|
|
$now = round(time(), -2); // db cache friendliness
|
|
$cutoffdate = $now - ($CFG->forum_oldpostdays*24*60*60);
|
|
$params = array($userid, $userid, $courseid, $cutoffdate);
|
|
|
|
if (!empty($CFG->forum_enabletimedposts)) {
|
|
$timedsql = "AND d.timestart < ? AND (d.timeend = 0 OR d.timeend > ?)";
|
|
$params[] = $now;
|
|
$params[] = $now;
|
|
} else {
|
|
$timedsql = "";
|
|
}
|
|
|
|
$sql = "SELECT f.id, COUNT(p.id) AS unread
|
|
FROM {forum_posts} p
|
|
JOIN {forum_discussions} d ON d.id = p.discussion
|
|
JOIN {forum} f ON f.id = d.forum
|
|
JOIN {course} c ON c.id = f.course
|
|
LEFT JOIN {forum_read} r ON (r.postid = p.id AND r.userid = ?)
|
|
LEFT JOIN {forum_track_prefs} tf ON (tf.userid = ? AND tf.forumid = f.id)
|
|
WHERE f.course = ?
|
|
AND p.modified >= ? AND r.id is NULL
|
|
AND (f.trackingtype = ".FORUM_TRACKING_ON."
|
|
OR (f.trackingtype = ".FORUM_TRACKING_OPTIONAL." AND tf.id IS NULL))
|
|
$timedsql
|
|
GROUP BY f.id";
|
|
|
|
if ($return = $DB->get_records_sql($sql, $params)) {
|
|
return $return;
|
|
}
|
|
|
|
return array();
|
|
}
|
|
|
|
/**
|
|
* Returns the count of records for the provided user and forum and [optionally] group.
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
* @param object $cm
|
|
* @param object $course
|
|
* @return int
|
|
*/
|
|
function forum_tp_count_forum_unread_posts($cm, $course) {
|
|
global $CFG, $USER, $DB;
|
|
|
|
static $readcache = array();
|
|
|
|
$forumid = $cm->instance;
|
|
|
|
if (!isset($readcache[$course->id])) {
|
|
$readcache[$course->id] = array();
|
|
if ($counts = forum_tp_get_course_unread_posts($USER->id, $course->id)) {
|
|
foreach ($counts as $count) {
|
|
$readcache[$course->id][$count->id] = $count->unread;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (empty($readcache[$course->id][$forumid])) {
|
|
// no need to check group mode ;-)
|
|
return 0;
|
|
}
|
|
|
|
$groupmode = groups_get_activity_groupmode($cm, $course);
|
|
|
|
if ($groupmode != SEPARATEGROUPS) {
|
|
return $readcache[$course->id][$forumid];
|
|
}
|
|
|
|
if (has_capability('moodle/site:accessallgroups', get_context_instance(CONTEXT_MODULE, $cm->id))) {
|
|
return $readcache[$course->id][$forumid];
|
|
}
|
|
|
|
require_once($CFG->dirroot.'/course/lib.php');
|
|
|
|
$modinfo = get_fast_modinfo($course);
|
|
if (is_null($modinfo->groups)) {
|
|
$modinfo->groups = groups_get_user_groups($course->id, $USER->id);
|
|
}
|
|
|
|
$mygroups = $modinfo->groups[$cm->groupingid];
|
|
|
|
// add all groups posts
|
|
if (empty($mygroups)) {
|
|
$mygroups = array(-1=>-1);
|
|
} else {
|
|
$mygroups[-1] = -1;
|
|
}
|
|
|
|
list ($groups_sql, $groups_params) = $DB->get_in_or_equal($mygroups);
|
|
|
|
$now = round(time(), -2); // db cache friendliness
|
|
$cutoffdate = $now - ($CFG->forum_oldpostdays*24*60*60);
|
|
$params = array($USER->id, $forumid, $cutoffdate);
|
|
|
|
if (!empty($CFG->forum_enabletimedposts)) {
|
|
$timedsql = "AND d.timestart < ? AND (d.timeend = 0 OR d.timeend > ?)";
|
|
$params[] = $now;
|
|
$params[] = $now;
|
|
} else {
|
|
$timedsql = "";
|
|
}
|
|
|
|
$params = array_merge($params, $groups_params);
|
|
|
|
$sql = "SELECT COUNT(p.id)
|
|
FROM {forum_posts} p
|
|
JOIN {forum_discussions} d ON p.discussion = d.id
|
|
LEFT JOIN {forum_read} r ON (r.postid = p.id AND r.userid = ?)
|
|
WHERE d.forum = ?
|
|
AND p.modified >= ? AND r.id is NULL
|
|
$timedsql
|
|
AND d.groupid $groups_sql";
|
|
|
|
return $DB->get_field_sql($sql, $params);
|
|
}
|
|
|
|
/**
|
|
* Deletes read records for the specified index. At least one parameter must be specified.
|
|
*
|
|
* @global object
|
|
* @param int $userid
|
|
* @param int $postid
|
|
* @param int $discussionid
|
|
* @param int $forumid
|
|
* @return bool
|
|
*/
|
|
function forum_tp_delete_read_records($userid=-1, $postid=-1, $discussionid=-1, $forumid=-1) {
|
|
global $DB;
|
|
$params = array();
|
|
|
|
$select = '';
|
|
if ($userid > -1) {
|
|
if ($select != '') $select .= ' AND ';
|
|
$select .= 'userid = ?';
|
|
$params[] = $userid;
|
|
}
|
|
if ($postid > -1) {
|
|
if ($select != '') $select .= ' AND ';
|
|
$select .= 'postid = ?';
|
|
$params[] = $postid;
|
|
}
|
|
if ($discussionid > -1) {
|
|
if ($select != '') $select .= ' AND ';
|
|
$select .= 'discussionid = ?';
|
|
$params[] = $discussionid;
|
|
}
|
|
if ($forumid > -1) {
|
|
if ($select != '') $select .= ' AND ';
|
|
$select .= 'forumid = ?';
|
|
$params[] = $forumid;
|
|
}
|
|
if ($select == '') {
|
|
return false;
|
|
}
|
|
else {
|
|
return $DB->delete_records_select('forum_read', $select, $params);
|
|
}
|
|
}
|
|
/**
|
|
* Get a list of forums not tracked by the user.
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param int $userid The id of the user to use.
|
|
* @param int $courseid The id of the course being checked.
|
|
* @return mixed An array indexed by forum id, or false.
|
|
*/
|
|
function forum_tp_get_untracked_forums($userid, $courseid) {
|
|
global $CFG, $DB;
|
|
|
|
$sql = "SELECT f.id
|
|
FROM {forum} f
|
|
LEFT JOIN {forum_track_prefs} ft ON (ft.forumid = f.id AND ft.userid = ?)
|
|
WHERE f.course = ?
|
|
AND (f.trackingtype = ".FORUM_TRACKING_OFF."
|
|
OR (f.trackingtype = ".FORUM_TRACKING_OPTIONAL." AND ft.id IS NOT NULL))";
|
|
|
|
if ($forums = $DB->get_records_sql($sql, array($userid, $courseid))) {
|
|
foreach ($forums as $forum) {
|
|
$forums[$forum->id] = $forum;
|
|
}
|
|
return $forums;
|
|
|
|
} else {
|
|
return array();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Determine if a user can track forums and optionally a particular forum.
|
|
* Checks the site settings, the user settings and the forum settings (if
|
|
* requested).
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
* @param mixed $forum The forum object to test, or the int id (optional).
|
|
* @param mixed $userid The user object to check for (optional).
|
|
* @return boolean
|
|
*/
|
|
function forum_tp_can_track_forums($forum=false, $user=false) {
|
|
global $USER, $CFG, $DB;
|
|
|
|
// if possible, avoid expensive
|
|
// queries
|
|
if (empty($CFG->forum_trackreadposts)) {
|
|
return false;
|
|
}
|
|
|
|
if ($user === false) {
|
|
$user = $USER;
|
|
}
|
|
|
|
if (isguestuser($user) or empty($user->id)) {
|
|
return false;
|
|
}
|
|
|
|
if ($forum === false) {
|
|
// general abitily to track forums
|
|
return (bool)$user->trackforums;
|
|
}
|
|
|
|
|
|
// Work toward always passing an object...
|
|
if (is_numeric($forum)) {
|
|
debugging('Better use proper forum object.', DEBUG_DEVELOPER);
|
|
$forum = $DB->get_record('forum', array('id' => $forum), '', 'id,trackingtype');
|
|
}
|
|
|
|
$forumallows = ($forum->trackingtype == FORUM_TRACKING_OPTIONAL);
|
|
$forumforced = ($forum->trackingtype == FORUM_TRACKING_ON);
|
|
|
|
return ($forumforced || $forumallows) && !empty($user->trackforums);
|
|
}
|
|
|
|
/**
|
|
* Tells whether a specific forum is tracked by the user. A user can optionally
|
|
* be specified. If not specified, the current user is assumed.
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
* @param mixed $forum If int, the id of the forum being checked; if object, the forum object
|
|
* @param int $userid The id of the user being checked (optional).
|
|
* @return boolean
|
|
*/
|
|
function forum_tp_is_tracked($forum, $user=false) {
|
|
global $USER, $CFG, $DB;
|
|
|
|
if ($user === false) {
|
|
$user = $USER;
|
|
}
|
|
|
|
if (isguestuser($user) or empty($user->id)) {
|
|
return false;
|
|
}
|
|
|
|
// Work toward always passing an object...
|
|
if (is_numeric($forum)) {
|
|
debugging('Better use proper forum object.', DEBUG_DEVELOPER);
|
|
$forum = $DB->get_record('forum', array('id' => $forum));
|
|
}
|
|
|
|
if (!forum_tp_can_track_forums($forum, $user)) {
|
|
return false;
|
|
}
|
|
|
|
$forumallows = ($forum->trackingtype == FORUM_TRACKING_OPTIONAL);
|
|
$forumforced = ($forum->trackingtype == FORUM_TRACKING_ON);
|
|
|
|
return $forumforced ||
|
|
($forumallows && $DB->get_record('forum_track_prefs', array('userid' => $user->id, 'forumid' => $forum->id)) === false);
|
|
}
|
|
|
|
/**
|
|
* @global object
|
|
* @global object
|
|
* @param int $forumid
|
|
* @param int $userid
|
|
*/
|
|
function forum_tp_start_tracking($forumid, $userid=false) {
|
|
global $USER, $DB;
|
|
|
|
if ($userid === false) {
|
|
$userid = $USER->id;
|
|
}
|
|
|
|
return $DB->delete_records('forum_track_prefs', array('userid' => $userid, 'forumid' => $forumid));
|
|
}
|
|
|
|
/**
|
|
* @global object
|
|
* @global object
|
|
* @param int $forumid
|
|
* @param int $userid
|
|
*/
|
|
function forum_tp_stop_tracking($forumid, $userid=false) {
|
|
global $USER, $DB;
|
|
|
|
if ($userid === false) {
|
|
$userid = $USER->id;
|
|
}
|
|
|
|
if (!$DB->record_exists('forum_track_prefs', array('userid' => $userid, 'forumid' => $forumid))) {
|
|
$track_prefs = new stdClass();
|
|
$track_prefs->userid = $userid;
|
|
$track_prefs->forumid = $forumid;
|
|
$DB->insert_record('forum_track_prefs', $track_prefs);
|
|
}
|
|
|
|
return forum_tp_delete_read_records($userid, -1, -1, $forumid);
|
|
}
|
|
|
|
|
|
/**
|
|
* Clean old records from the forum_read table.
|
|
* @global object
|
|
* @global object
|
|
* @return void
|
|
*/
|
|
function forum_tp_clean_read_records() {
|
|
global $CFG, $DB;
|
|
|
|
if (!isset($CFG->forum_oldpostdays)) {
|
|
return;
|
|
}
|
|
// Look for records older than the cutoffdate that are still in the forum_read table.
|
|
$cutoffdate = time() - ($CFG->forum_oldpostdays*24*60*60);
|
|
|
|
//first get the oldest tracking present - we need tis to speedup the next delete query
|
|
$sql = "SELECT MIN(fp.modified) AS first
|
|
FROM {forum_posts} fp
|
|
JOIN {forum_read} fr ON fr.postid=fp.id";
|
|
if (!$first = $DB->get_field_sql($sql)) {
|
|
// nothing to delete;
|
|
return;
|
|
}
|
|
|
|
// now delete old tracking info
|
|
$sql = "DELETE
|
|
FROM {forum_read}
|
|
WHERE postid IN (SELECT fp.id
|
|
FROM {forum_posts} fp
|
|
WHERE fp.modified >= ? AND fp.modified < ?)";
|
|
$DB->execute($sql, array($first, $cutoffdate));
|
|
}
|
|
|
|
/**
|
|
* Sets the last post for a given discussion
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param into $discussionid
|
|
* @return bool|int
|
|
**/
|
|
function forum_discussion_update_last_post($discussionid) {
|
|
global $CFG, $DB;
|
|
|
|
// Check the given discussion exists
|
|
if (!$DB->record_exists('forum_discussions', array('id' => $discussionid))) {
|
|
return false;
|
|
}
|
|
|
|
// Use SQL to find the last post for this discussion
|
|
$sql = "SELECT id, userid, modified
|
|
FROM {forum_posts}
|
|
WHERE discussion=?
|
|
ORDER BY modified DESC";
|
|
|
|
// Lets go find the last post
|
|
if (($lastposts = $DB->get_records_sql($sql, array($discussionid), 0, 1))) {
|
|
$lastpost = reset($lastposts);
|
|
$discussionobject = new stdClass();
|
|
$discussionobject->id = $discussionid;
|
|
$discussionobject->usermodified = $lastpost->userid;
|
|
$discussionobject->timemodified = $lastpost->modified;
|
|
$DB->update_record('forum_discussions', $discussionobject);
|
|
return $lastpost->id;
|
|
}
|
|
|
|
// To get here either we couldn't find a post for the discussion (weird)
|
|
// or we couldn't update the discussion record (weird x2)
|
|
return false;
|
|
}
|
|
|
|
|
|
/**
|
|
* @return array
|
|
*/
|
|
function forum_get_view_actions() {
|
|
return array('view discussion', 'search', 'forum', 'forums', 'subscribers', 'view forum');
|
|
}
|
|
|
|
/**
|
|
* @return array
|
|
*/
|
|
function forum_get_post_actions() {
|
|
return array('add discussion','add post','delete discussion','delete post','move discussion','prune post','update post');
|
|
}
|
|
|
|
/**
|
|
* this function returns all the separate forum ids, given a courseid
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param int $courseid
|
|
* @return array
|
|
*/
|
|
function forum_get_separate_modules($courseid) {
|
|
|
|
global $CFG,$DB;
|
|
$forummodule = $DB->get_record("modules", array("name" => "forum"));
|
|
|
|
$sql = 'SELECT f.id, f.id FROM {forum} f, {course_modules} cm WHERE
|
|
f.id = cm.instance AND cm.module =? AND cm.visible = 1 AND cm.course = ?
|
|
AND cm.groupmode ='.SEPARATEGROUPS;
|
|
|
|
return $DB->get_records_sql($sql, array($forummodule->id, $courseid));
|
|
|
|
}
|
|
|
|
/**
|
|
* @global object
|
|
* @global object
|
|
* @global object
|
|
* @param object $forum
|
|
* @param object $cm
|
|
* @return bool
|
|
*/
|
|
function forum_check_throttling($forum, $cm=null) {
|
|
global $USER, $CFG, $DB, $OUTPUT;
|
|
|
|
if (is_numeric($forum)) {
|
|
$forum = $DB->get_record('forum',array('id'=>$forum));
|
|
}
|
|
if (!is_object($forum)) {
|
|
return false; // this is broken.
|
|
}
|
|
|
|
if (empty($forum->blockafter)) {
|
|
return true;
|
|
}
|
|
|
|
if (empty($forum->blockperiod)) {
|
|
return true;
|
|
}
|
|
|
|
if (!$cm) {
|
|
if (!$cm = get_coursemodule_from_instance('forum', $forum->id, $forum->course)) {
|
|
print_error('invalidcoursemodule');
|
|
}
|
|
}
|
|
|
|
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
if(has_capability('mod/forum:postwithoutthrottling', $modcontext)) {
|
|
return true;
|
|
}
|
|
|
|
// get the number of posts in the last period we care about
|
|
$timenow = time();
|
|
$timeafter = $timenow - $forum->blockperiod;
|
|
|
|
$numposts = $DB->count_records_sql('SELECT COUNT(p.id) FROM {forum_posts} p'
|
|
.' JOIN {forum_discussions} d'
|
|
.' ON p.discussion = d.id WHERE d.forum = ?'
|
|
.' AND p.userid = ? AND p.created > ?', array($forum->id, $USER->id, $timeafter));
|
|
|
|
$a = new stdClass();
|
|
$a->blockafter = $forum->blockafter;
|
|
$a->numposts = $numposts;
|
|
$a->blockperiod = get_string('secondstotime'.$forum->blockperiod);
|
|
|
|
if ($forum->blockafter <= $numposts) {
|
|
print_error('forumblockingtoomanyposts', 'error', $CFG->wwwroot.'/mod/forum/view.php?f='.$forum->id, $a);
|
|
}
|
|
if ($forum->warnafter <= $numposts) {
|
|
echo $OUTPUT->notification(get_string('forumblockingalmosttoomanyposts','forum',$a));
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
/**
|
|
* Removes all grades from gradebook
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param int $courseid
|
|
* @param string $type optional
|
|
*/
|
|
function forum_reset_gradebook($courseid, $type='') {
|
|
global $CFG, $DB;
|
|
|
|
$wheresql = '';
|
|
$params = array($courseid);
|
|
if ($type) {
|
|
$wheresql = "AND f.type=?";
|
|
$params[] = $type;
|
|
}
|
|
|
|
$sql = "SELECT f.*, cm.idnumber as cmidnumber, f.course as courseid
|
|
FROM {forum} f, {course_modules} cm, {modules} m
|
|
WHERE m.name='forum' AND m.id=cm.module AND cm.instance=f.id AND f.course=? $wheresql";
|
|
|
|
if ($forums = $DB->get_records_sql($sql, $params)) {
|
|
foreach ($forums as $forum) {
|
|
forum_grade_item_update($forum, 'reset');
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This function is used by the reset_course_userdata function in moodlelib.
|
|
* This function will remove all posts from the specified forum
|
|
* and clean up any related data.
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param $data the data submitted from the reset course.
|
|
* @return array status array
|
|
*/
|
|
function forum_reset_userdata($data) {
|
|
global $CFG, $DB;
|
|
require_once($CFG->dirroot.'/rating/lib.php');
|
|
|
|
$componentstr = get_string('modulenameplural', 'forum');
|
|
$status = array();
|
|
|
|
$params = array($data->courseid);
|
|
|
|
$removeposts = false;
|
|
$typesql = "";
|
|
if (!empty($data->reset_forum_all)) {
|
|
$removeposts = true;
|
|
$typesstr = get_string('resetforumsall', 'forum');
|
|
$types = array();
|
|
} else if (!empty($data->reset_forum_types)){
|
|
$removeposts = true;
|
|
$typesql = "";
|
|
$types = array();
|
|
$forum_types_all = forum_get_forum_types_all();
|
|
foreach ($data->reset_forum_types as $type) {
|
|
if (!array_key_exists($type, $forum_types_all)) {
|
|
continue;
|
|
}
|
|
$typesql .= " AND f.type=?";
|
|
$types[] = $forum_types_all[$type];
|
|
$params[] = $type;
|
|
}
|
|
$typesstr = get_string('resetforums', 'forum').': '.implode(', ', $types);
|
|
}
|
|
$alldiscussionssql = "SELECT fd.id
|
|
FROM {forum_discussions} fd, {forum} f
|
|
WHERE f.course=? AND f.id=fd.forum";
|
|
|
|
$allforumssql = "SELECT f.id
|
|
FROM {forum} f
|
|
WHERE f.course=?";
|
|
|
|
$allpostssql = "SELECT fp.id
|
|
FROM {forum_posts} fp, {forum_discussions} fd, {forum} f
|
|
WHERE f.course=? AND f.id=fd.forum AND fd.id=fp.discussion";
|
|
|
|
$forumssql = $forums = $rm = null;
|
|
|
|
if( $removeposts || !empty($data->reset_forum_ratings) ) {
|
|
$forumssql = "$allforumssql $typesql";
|
|
$forums = $forums = $DB->get_records_sql($forumssql, $params);
|
|
$rm = new rating_manager();;
|
|
$ratingdeloptions = new stdClass;
|
|
$ratingdeloptions->component = 'mod_forum';
|
|
$ratingdeloptions->ratingarea = 'post';
|
|
}
|
|
|
|
if ($removeposts) {
|
|
$discussionssql = "$alldiscussionssql $typesql";
|
|
$postssql = "$allpostssql $typesql";
|
|
|
|
// now get rid of all attachments
|
|
$fs = get_file_storage();
|
|
if ($forums) {
|
|
foreach ($forums as $forumid=>$unused) {
|
|
if (!$cm = get_coursemodule_from_instance('forum', $forumid)) {
|
|
continue;
|
|
}
|
|
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
$fs->delete_area_files($context->id, 'mod_forum', 'attachment');
|
|
$fs->delete_area_files($context->id, 'mod_forum', 'post');
|
|
|
|
//remove ratings
|
|
$ratingdeloptions->contextid = $context->id;
|
|
$rm->delete_ratings($ratingdeloptions);
|
|
}
|
|
}
|
|
|
|
// first delete all read flags
|
|
$DB->delete_records_select('forum_read', "forumid IN ($forumssql)", $params);
|
|
|
|
// remove tracking prefs
|
|
$DB->delete_records_select('forum_track_prefs', "forumid IN ($forumssql)", $params);
|
|
|
|
// remove posts from queue
|
|
$DB->delete_records_select('forum_queue', "discussionid IN ($discussionssql)", $params);
|
|
|
|
// all posts - initial posts must be kept in single simple discussion forums
|
|
$DB->delete_records_select('forum_posts', "discussion IN ($discussionssql) AND parent <> 0", $params); // first all children
|
|
$DB->delete_records_select('forum_posts', "discussion IN ($discussionssql AND f.type <> 'single') AND parent = 0", $params); // now the initial posts for non single simple
|
|
|
|
// finally all discussions except single simple forums
|
|
$DB->delete_records_select('forum_discussions', "forum IN ($forumssql AND f.type <> 'single')", $params);
|
|
|
|
// remove all grades from gradebook
|
|
if (empty($data->reset_gradebook_grades)) {
|
|
if (empty($types)) {
|
|
forum_reset_gradebook($data->courseid);
|
|
} else {
|
|
foreach ($types as $type) {
|
|
forum_reset_gradebook($data->courseid, $type);
|
|
}
|
|
}
|
|
}
|
|
|
|
$status[] = array('component'=>$componentstr, 'item'=>$typesstr, 'error'=>false);
|
|
}
|
|
|
|
// remove all ratings in this course's forums
|
|
if (!empty($data->reset_forum_ratings)) {
|
|
if ($forums) {
|
|
foreach ($forums as $forumid=>$unused) {
|
|
if (!$cm = get_coursemodule_from_instance('forum', $forumid)) {
|
|
continue;
|
|
}
|
|
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
|
|
//remove ratings
|
|
$ratingdeloptions->contextid = $context->id;
|
|
$rm->delete_ratings($ratingdeloptions);
|
|
}
|
|
}
|
|
|
|
// remove all grades from gradebook
|
|
if (empty($data->reset_gradebook_grades)) {
|
|
forum_reset_gradebook($data->courseid);
|
|
}
|
|
}
|
|
|
|
// remove all subscriptions unconditionally - even for users still enrolled in course
|
|
if (!empty($data->reset_forum_subscriptions)) {
|
|
$DB->delete_records_select('forum_subscriptions', "forum IN ($allforumssql)", $params);
|
|
$status[] = array('component'=>$componentstr, 'item'=>get_string('resetsubscriptions','forum'), 'error'=>false);
|
|
}
|
|
|
|
// remove all tracking prefs unconditionally - even for users still enrolled in course
|
|
if (!empty($data->reset_forum_track_prefs)) {
|
|
$DB->delete_records_select('forum_track_prefs', "forumid IN ($allforumssql)", $params);
|
|
$status[] = array('component'=>$componentstr, 'item'=>get_string('resettrackprefs','forum'), 'error'=>false);
|
|
}
|
|
|
|
/// updating dates - shift may be negative too
|
|
if ($data->timeshift) {
|
|
shift_course_mod_dates('forum', array('assesstimestart', 'assesstimefinish'), $data->timeshift, $data->courseid);
|
|
$status[] = array('component'=>$componentstr, 'item'=>get_string('datechanged'), 'error'=>false);
|
|
}
|
|
|
|
return $status;
|
|
}
|
|
|
|
/**
|
|
* Called by course/reset.php
|
|
*
|
|
* @param $mform form passed by reference
|
|
*/
|
|
function forum_reset_course_form_definition(&$mform) {
|
|
$mform->addElement('header', 'forumheader', get_string('modulenameplural', 'forum'));
|
|
|
|
$mform->addElement('checkbox', 'reset_forum_all', get_string('resetforumsall','forum'));
|
|
|
|
$mform->addElement('select', 'reset_forum_types', get_string('resetforums', 'forum'), forum_get_forum_types_all(), array('multiple' => 'multiple'));
|
|
$mform->setAdvanced('reset_forum_types');
|
|
$mform->disabledIf('reset_forum_types', 'reset_forum_all', 'checked');
|
|
|
|
$mform->addElement('checkbox', 'reset_forum_subscriptions', get_string('resetsubscriptions','forum'));
|
|
$mform->setAdvanced('reset_forum_subscriptions');
|
|
|
|
$mform->addElement('checkbox', 'reset_forum_track_prefs', get_string('resettrackprefs','forum'));
|
|
$mform->setAdvanced('reset_forum_track_prefs');
|
|
$mform->disabledIf('reset_forum_track_prefs', 'reset_forum_all', 'checked');
|
|
|
|
$mform->addElement('checkbox', 'reset_forum_ratings', get_string('deleteallratings'));
|
|
$mform->disabledIf('reset_forum_ratings', 'reset_forum_all', 'checked');
|
|
}
|
|
|
|
/**
|
|
* Course reset form defaults.
|
|
* @return array
|
|
*/
|
|
function forum_reset_course_form_defaults($course) {
|
|
return array('reset_forum_all'=>1, 'reset_forum_subscriptions'=>0, 'reset_forum_track_prefs'=>0, 'reset_forum_ratings'=>1);
|
|
}
|
|
|
|
/**
|
|
* Converts a forum to use the Roles System
|
|
*
|
|
* @global object
|
|
* @global object
|
|
* @param object $forum a forum object with the same attributes as a record
|
|
* from the forum database table
|
|
* @param int $forummodid the id of the forum module, from the modules table
|
|
* @param array $teacherroles array of roles that have archetype teacher
|
|
* @param array $studentroles array of roles that have archetype student
|
|
* @param array $guestroles array of roles that have archetype guest
|
|
* @param int $cmid the course_module id for this forum instance
|
|
* @return boolean forum was converted or not
|
|
*/
|
|
function forum_convert_to_roles($forum, $forummodid, $teacherroles=array(),
|
|
$studentroles=array(), $guestroles=array(), $cmid=NULL) {
|
|
|
|
global $CFG, $DB, $OUTPUT;
|
|
|
|
if (!isset($forum->open) && !isset($forum->assesspublic)) {
|
|
// We assume that this forum has already been converted to use the
|
|
// Roles System. Columns forum.open and forum.assesspublic get dropped
|
|
// once the forum module has been upgraded to use Roles.
|
|
return false;
|
|
}
|
|
|
|
if ($forum->type == 'teacher') {
|
|
|
|
// Teacher forums should be converted to normal forums that
|
|
// use the Roles System to implement the old behavior.
|
|
// Note:
|
|
// Seems that teacher forums were never backed up in 1.6 since they
|
|
// didn't have an entry in the course_modules table.
|
|
require_once($CFG->dirroot.'/course/lib.php');
|
|
|
|
if ($DB->count_records('forum_discussions', array('forum' => $forum->id)) == 0) {
|
|
// Delete empty teacher forums.
|
|
$DB->delete_records('forum', array('id' => $forum->id));
|
|
} else {
|
|
// Create a course module for the forum and assign it to
|
|
// section 0 in the course.
|
|
$mod = new stdClass();
|
|
$mod->course = $forum->course;
|
|
$mod->module = $forummodid;
|
|
$mod->instance = $forum->id;
|
|
$mod->section = 0;
|
|
$mod->visible = 0; // Hide the forum
|
|
$mod->visibleold = 0; // Hide the forum
|
|
$mod->groupmode = 0;
|
|
|
|
if (!$cmid = add_course_module($mod)) {
|
|
print_error('cannotcreateinstanceforteacher', 'forum');
|
|
} else {
|
|
$mod->coursemodule = $cmid;
|
|
if (!$sectionid = add_mod_to_section($mod)) {
|
|
print_error('cannotaddteacherforumto', 'forum');
|
|
} else {
|
|
$DB->set_field('course_modules', 'section', $sectionid, array('id' => $cmid));
|
|
}
|
|
}
|
|
|
|
// Change the forum type to general.
|
|
$forum->type = 'general';
|
|
$DB->update_record('forum', $forum);
|
|
|
|
$context = get_context_instance(CONTEXT_MODULE, $cmid);
|
|
|
|
// Create overrides for default student and guest roles (prevent).
|
|
foreach ($studentroles as $studentrole) {
|
|
assign_capability('mod/forum:viewdiscussion', CAP_PREVENT, $studentrole->id, $context->id);
|
|
assign_capability('mod/forum:viewhiddentimedposts', CAP_PREVENT, $studentrole->id, $context->id);
|
|
assign_capability('mod/forum:startdiscussion', CAP_PREVENT, $studentrole->id, $context->id);
|
|
assign_capability('mod/forum:replypost', CAP_PREVENT, $studentrole->id, $context->id);
|
|
assign_capability('mod/forum:viewrating', CAP_PREVENT, $studentrole->id, $context->id);
|
|
assign_capability('mod/forum:viewanyrating', CAP_PREVENT, $studentrole->id, $context->id);
|
|
assign_capability('mod/forum:rate', CAP_PREVENT, $studentrole->id, $context->id);
|
|
assign_capability('mod/forum:createattachment', CAP_PREVENT, $studentrole->id, $context->id);
|
|
assign_capability('mod/forum:deleteownpost', CAP_PREVENT, $studentrole->id, $context->id);
|
|
assign_capability('mod/forum:deleteanypost', CAP_PREVENT, $studentrole->id, $context->id);
|
|
assign_capability('mod/forum:splitdiscussions', CAP_PREVENT, $studentrole->id, $context->id);
|
|
assign_capability('mod/forum:movediscussions', CAP_PREVENT, $studentrole->id, $context->id);
|
|
assign_capability('mod/forum:editanypost', CAP_PREVENT, $studentrole->id, $context->id);
|
|
assign_capability('mod/forum:viewqandawithoutposting', CAP_PREVENT, $studentrole->id, $context->id);
|
|
assign_capability('mod/forum:viewsubscribers', CAP_PREVENT, $studentrole->id, $context->id);
|
|
assign_capability('mod/forum:managesubscriptions', CAP_PREVENT, $studentrole->id, $context->id);
|
|
assign_capability('mod/forum:postwithoutthrottling', CAP_PREVENT, $studentrole->id, $context->id);
|
|
}
|
|
foreach ($guestroles as $guestrole) {
|
|
assign_capability('mod/forum:viewdiscussion', CAP_PREVENT, $guestrole->id, $context->id);
|
|
assign_capability('mod/forum:viewhiddentimedposts', CAP_PREVENT, $guestrole->id, $context->id);
|
|
assign_capability('mod/forum:startdiscussion', CAP_PREVENT, $guestrole->id, $context->id);
|
|
assign_capability('mod/forum:replypost', CAP_PREVENT, $guestrole->id, $context->id);
|
|
assign_capability('mod/forum:viewrating', CAP_PREVENT, $guestrole->id, $context->id);
|
|
assign_capability('mod/forum:viewanyrating', CAP_PREVENT, $guestrole->id, $context->id);
|
|
assign_capability('mod/forum:rate', CAP_PREVENT, $guestrole->id, $context->id);
|
|
assign_capability('mod/forum:createattachment', CAP_PREVENT, $guestrole->id, $context->id);
|
|
assign_capability('mod/forum:deleteownpost', CAP_PREVENT, $guestrole->id, $context->id);
|
|
assign_capability('mod/forum:deleteanypost', CAP_PREVENT, $guestrole->id, $context->id);
|
|
assign_capability('mod/forum:splitdiscussions', CAP_PREVENT, $guestrole->id, $context->id);
|
|
assign_capability('mod/forum:movediscussions', CAP_PREVENT, $guestrole->id, $context->id);
|
|
assign_capability('mod/forum:editanypost', CAP_PREVENT, $guestrole->id, $context->id);
|
|
assign_capability('mod/forum:viewqandawithoutposting', CAP_PREVENT, $guestrole->id, $context->id);
|
|
assign_capability('mod/forum:viewsubscribers', CAP_PREVENT, $guestrole->id, $context->id);
|
|
assign_capability('mod/forum:managesubscriptions', CAP_PREVENT, $guestrole->id, $context->id);
|
|
assign_capability('mod/forum:postwithoutthrottling', CAP_PREVENT, $guestrole->id, $context->id);
|
|
}
|
|
}
|
|
} else {
|
|
// Non-teacher forum.
|
|
|
|
if (empty($cmid)) {
|
|
// We were not given the course_module id. Try to find it.
|
|
if (!$cm = get_coursemodule_from_instance('forum', $forum->id)) {
|
|
echo $OUTPUT->notification('Could not get the course module for the forum');
|
|
return false;
|
|
} else {
|
|
$cmid = $cm->id;
|
|
}
|
|
}
|
|
$context = get_context_instance(CONTEXT_MODULE, $cmid);
|
|
|
|
// $forum->open defines what students can do:
|
|
// 0 = No discussions, no replies
|
|
// 1 = No discussions, but replies are allowed
|
|
// 2 = Discussions and replies are allowed
|
|
switch ($forum->open) {
|
|
case 0:
|
|
foreach ($studentroles as $studentrole) {
|
|
assign_capability('mod/forum:startdiscussion', CAP_PREVENT, $studentrole->id, $context->id);
|
|
assign_capability('mod/forum:replypost', CAP_PREVENT, $studentrole->id, $context->id);
|
|
}
|
|
break;
|
|
case 1:
|
|
foreach ($studentroles as $studentrole) {
|
|
assign_capability('mod/forum:startdiscussion', CAP_PREVENT, $studentrole->id, $context->id);
|
|
assign_capability('mod/forum:replypost', CAP_ALLOW, $studentrole->id, $context->id);
|
|
}
|
|
break;
|
|
case 2:
|
|
foreach ($studentroles as $studentrole) {
|
|
assign_capability('mod/forum:startdiscussion', CAP_ALLOW, $studentrole->id, $context->id);
|
|
assign_capability('mod/forum:replypost', CAP_ALLOW, $studentrole->id, $context->id);
|
|
}
|
|
break;
|
|
}
|
|
|
|
// $forum->assessed defines whether forum rating is turned
|
|
// on (1 or 2) and who can rate posts:
|
|
// 1 = Everyone can rate posts
|
|
// 2 = Only teachers can rate posts
|
|
switch ($forum->assessed) {
|
|
case 1:
|
|
foreach ($studentroles as $studentrole) {
|
|
assign_capability('mod/forum:rate', CAP_ALLOW, $studentrole->id, $context->id);
|
|
}
|
|
foreach ($teacherroles as $teacherrole) {
|
|
assign_capability('mod/forum:rate', CAP_ALLOW, $teacherrole->id, $context->id);
|
|
}
|
|
break;
|
|
case 2:
|
|
foreach ($studentroles as $studentrole) {
|
|
assign_capability('mod/forum:rate', CAP_PREVENT, $studentrole->id, $context->id);
|
|
}
|
|
foreach ($teacherroles as $teacherrole) {
|
|
assign_capability('mod/forum:rate', CAP_ALLOW, $teacherrole->id, $context->id);
|
|
}
|
|
break;
|
|
}
|
|
|
|
// $forum->assesspublic defines whether students can see
|
|
// everybody's ratings:
|
|
// 0 = Students can only see their own ratings
|
|
// 1 = Students can see everyone's ratings
|
|
switch ($forum->assesspublic) {
|
|
case 0:
|
|
foreach ($studentroles as $studentrole) {
|
|
assign_capability('mod/forum:viewanyrating', CAP_PREVENT, $studentrole->id, $context->id);
|
|
}
|
|
foreach ($teacherroles as $teacherrole) {
|
|
assign_capability('mod/forum:viewanyrating', CAP_ALLOW, $teacherrole->id, $context->id);
|
|
}
|
|
break;
|
|
case 1:
|
|
foreach ($studentroles as $studentrole) {
|
|
assign_capability('mod/forum:viewanyrating', CAP_ALLOW, $studentrole->id, $context->id);
|
|
}
|
|
foreach ($teacherroles as $teacherrole) {
|
|
assign_capability('mod/forum:viewanyrating', CAP_ALLOW, $teacherrole->id, $context->id);
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (empty($cm)) {
|
|
$cm = $DB->get_record('course_modules', array('id' => $cmid));
|
|
}
|
|
|
|
// $cm->groupmode:
|
|
// 0 - No groups
|
|
// 1 - Separate groups
|
|
// 2 - Visible groups
|
|
switch ($cm->groupmode) {
|
|
case 0:
|
|
break;
|
|
case 1:
|
|
foreach ($studentroles as $studentrole) {
|
|
assign_capability('moodle/site:accessallgroups', CAP_PREVENT, $studentrole->id, $context->id);
|
|
}
|
|
foreach ($teacherroles as $teacherrole) {
|
|
assign_capability('moodle/site:accessallgroups', CAP_ALLOW, $teacherrole->id, $context->id);
|
|
}
|
|
break;
|
|
case 2:
|
|
foreach ($studentroles as $studentrole) {
|
|
assign_capability('moodle/site:accessallgroups', CAP_ALLOW, $studentrole->id, $context->id);
|
|
}
|
|
foreach ($teacherroles as $teacherrole) {
|
|
assign_capability('moodle/site:accessallgroups', CAP_ALLOW, $teacherrole->id, $context->id);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Returns array of forum layout modes
|
|
*
|
|
* @return array
|
|
*/
|
|
function forum_get_layout_modes() {
|
|
return array (FORUM_MODE_FLATOLDEST => get_string('modeflatoldestfirst', 'forum'),
|
|
FORUM_MODE_FLATNEWEST => get_string('modeflatnewestfirst', 'forum'),
|
|
FORUM_MODE_THREADED => get_string('modethreaded', 'forum'),
|
|
FORUM_MODE_NESTED => get_string('modenested', 'forum'));
|
|
}
|
|
|
|
/**
|
|
* Returns array of forum types chooseable on the forum editing form
|
|
*
|
|
* @return array
|
|
*/
|
|
function forum_get_forum_types() {
|
|
return array ('general' => get_string('generalforum', 'forum'),
|
|
'eachuser' => get_string('eachuserforum', 'forum'),
|
|
'single' => get_string('singleforum', 'forum'),
|
|
'qanda' => get_string('qandaforum', 'forum'),
|
|
'blog' => get_string('blogforum', 'forum'));
|
|
}
|
|
|
|
/**
|
|
* Returns array of all forum layout modes
|
|
*
|
|
* @return array
|
|
*/
|
|
function forum_get_forum_types_all() {
|
|
return array ('news' => get_string('namenews','forum'),
|
|
'social' => get_string('namesocial','forum'),
|
|
'general' => get_string('generalforum', 'forum'),
|
|
'eachuser' => get_string('eachuserforum', 'forum'),
|
|
'single' => get_string('singleforum', 'forum'),
|
|
'qanda' => get_string('qandaforum', 'forum'),
|
|
'blog' => get_string('blogforum', 'forum'));
|
|
}
|
|
|
|
/**
|
|
* Returns array of forum open modes
|
|
*
|
|
* @return array
|
|
*/
|
|
function forum_get_open_modes() {
|
|
return array ('2' => get_string('openmode2', 'forum'),
|
|
'1' => get_string('openmode1', 'forum'),
|
|
'0' => get_string('openmode0', 'forum') );
|
|
}
|
|
|
|
/**
|
|
* Returns all other caps used in module
|
|
*
|
|
* @return array
|
|
*/
|
|
function forum_get_extra_capabilities() {
|
|
return array('moodle/site:accessallgroups', 'moodle/site:viewfullnames', 'moodle/site:trustcontent', 'moodle/rating:view', 'moodle/rating:viewany', 'moodle/rating:viewall', 'moodle/rating:rate');
|
|
}
|
|
|
|
|
|
/**
|
|
* This function is used to extend the global navigation by add forum nodes if there
|
|
* is relevant content.
|
|
*
|
|
* @param navigation_node $navref
|
|
* @param stdClass $course
|
|
* @param stdClass $module
|
|
* @param stdClass $cm
|
|
*/
|
|
/*************************************************
|
|
function forum_extend_navigation($navref, $course, $module, $cm) {
|
|
global $CFG, $OUTPUT, $USER;
|
|
|
|
$limit = 5;
|
|
|
|
$discussions = forum_get_discussions($cm,"d.timemodified DESC", false, -1, $limit);
|
|
$discussioncount = forum_get_discussions_count($cm);
|
|
if (!is_array($discussions) || count($discussions)==0) {
|
|
return;
|
|
}
|
|
$discussionnode = $navref->add(get_string('discussions', 'forum').' ('.$discussioncount.')');
|
|
$discussionnode->mainnavonly = true;
|
|
$discussionnode->display = false; // Do not display on navigation (only on navbar)
|
|
|
|
foreach ($discussions as $discussion) {
|
|
$icon = new pix_icon('i/feedback', '');
|
|
$url = new moodle_url('/mod/forum/discuss.php', array('d'=>$discussion->discussion));
|
|
$discussionnode->add($discussion->subject, $url, navigation_node::TYPE_SETTING, null, null, $icon);
|
|
}
|
|
|
|
if ($discussioncount > count($discussions)) {
|
|
if (!empty($navref->action)) {
|
|
$url = $navref->action;
|
|
} else {
|
|
$url = new moodle_url('/mod/forum/view.php', array('id'=>$cm->id));
|
|
}
|
|
$discussionnode->add(get_string('viewalldiscussions', 'forum'), $url, navigation_node::TYPE_SETTING, null, null, $icon);
|
|
}
|
|
|
|
$index = 0;
|
|
$recentposts = array();
|
|
$lastlogin = time() - COURSE_MAX_RECENT_PERIOD;
|
|
if (!isguestuser() and !empty($USER->lastcourseaccess[$course->id])) {
|
|
if ($USER->lastcourseaccess[$course->id] > $lastlogin) {
|
|
$lastlogin = $USER->lastcourseaccess[$course->id];
|
|
}
|
|
}
|
|
forum_get_recent_mod_activity($recentposts, $index, $lastlogin, $course->id, $cm->id);
|
|
|
|
if (is_array($recentposts) && count($recentposts)>0) {
|
|
$recentnode = $navref->add(get_string('recentactivity').' ('.count($recentposts).')');
|
|
$recentnode->mainnavonly = true;
|
|
$recentnode->display = false;
|
|
foreach ($recentposts as $post) {
|
|
$icon = new pix_icon('i/feedback', '');
|
|
$url = new moodle_url('/mod/forum/discuss.php', array('d'=>$post->content->discussion));
|
|
$title = $post->content->subject."\n".userdate($post->timestamp, get_string('strftimerecent', 'langconfig'))."\n".$post->user->firstname.' '.$post->user->lastname;
|
|
$recentnode->add($title, $url, navigation_node::TYPE_SETTING, null, null, $icon);
|
|
}
|
|
}
|
|
}
|
|
*************************/
|
|
|
|
/**
|
|
* Adds module specific settings to the settings block
|
|
*
|
|
* @param settings_navigation $settings The settings navigation object
|
|
* @param navigation_node $forumnode The node to add module settings to
|
|
*/
|
|
function forum_extend_settings_navigation(settings_navigation $settingsnav, navigation_node $forumnode) {
|
|
global $USER, $PAGE, $CFG, $DB, $OUTPUT;
|
|
|
|
$forumobject = $DB->get_record("forum", array("id" => $PAGE->cm->instance));
|
|
if (empty($PAGE->cm->context)) {
|
|
$PAGE->cm->context = get_context_instance(CONTEXT_MODULE, $PAGE->cm->instance);
|
|
}
|
|
|
|
// for some actions you need to be enrolled, beiing admin is not enough sometimes here
|
|
$enrolled = is_enrolled($PAGE->cm->context, $USER, '', false);
|
|
$activeenrolled = is_enrolled($PAGE->cm->context, $USER, '', true);
|
|
|
|
$canmanage = has_capability('mod/forum:managesubscriptions', $PAGE->cm->context);
|
|
$subscriptionmode = forum_get_forcesubscribed($forumobject);
|
|
$cansubscribe = ($activeenrolled && $subscriptionmode != FORUM_FORCESUBSCRIBE && ($subscriptionmode != FORUM_DISALLOWSUBSCRIBE || $canmanage));
|
|
|
|
if ($canmanage) {
|
|
$mode = $forumnode->add(get_string('subscriptionmode', 'forum'), null, navigation_node::TYPE_CONTAINER);
|
|
|
|
$allowchoice = $mode->add(get_string('subscriptionoptional', 'forum'), new moodle_url('/mod/forum/subscribe.php', array('id'=>$forumobject->id, 'mode'=>FORUM_CHOOSESUBSCRIBE, 'sesskey'=>sesskey())), navigation_node::TYPE_SETTING);
|
|
$forceforever = $mode->add(get_string("subscriptionforced", "forum"), new moodle_url('/mod/forum/subscribe.php', array('id'=>$forumobject->id, 'mode'=>FORUM_FORCESUBSCRIBE, 'sesskey'=>sesskey())), navigation_node::TYPE_SETTING);
|
|
$forceinitially = $mode->add(get_string("subscriptionauto", "forum"), new moodle_url('/mod/forum/subscribe.php', array('id'=>$forumobject->id, 'mode'=>FORUM_INITIALSUBSCRIBE, 'sesskey'=>sesskey())), navigation_node::TYPE_SETTING);
|
|
$disallowchoice = $mode->add(get_string('subscriptiondisabled', 'forum'), new moodle_url('/mod/forum/subscribe.php', array('id'=>$forumobject->id, 'mode'=>FORUM_DISALLOWSUBSCRIBE, 'sesskey'=>sesskey())), navigation_node::TYPE_SETTING);
|
|
|
|
switch ($subscriptionmode) {
|
|
case FORUM_CHOOSESUBSCRIBE : // 0
|
|
$allowchoice->action = null;
|
|
$allowchoice->add_class('activesetting');
|
|
break;
|
|
case FORUM_FORCESUBSCRIBE : // 1
|
|
$forceforever->action = null;
|
|
$forceforever->add_class('activesetting');
|
|
break;
|
|
case FORUM_INITIALSUBSCRIBE : // 2
|
|
$forceinitially->action = null;
|
|
$forceinitially->add_class('activesetting');
|
|
break;
|
|
case FORUM_DISALLOWSUBSCRIBE : // 3
|
|
$disallowchoice->action = null;
|
|
$disallowchoice->add_class('activesetting');
|
|
break;
|
|
}
|
|
|
|
} else if ($activeenrolled) {
|
|
|
|
switch ($subscriptionmode) {
|
|
case FORUM_CHOOSESUBSCRIBE : // 0
|
|
$notenode = $forumnode->add(get_string('subscriptionoptional', 'forum'));
|
|
break;
|
|
case FORUM_FORCESUBSCRIBE : // 1
|
|
$notenode = $forumnode->add(get_string('subscriptionforced', 'forum'));
|
|
break;
|
|
case FORUM_INITIALSUBSCRIBE : // 2
|
|
$notenode = $forumnode->add(get_string('subscriptionauto', 'forum'));
|
|
break;
|
|
case FORUM_DISALLOWSUBSCRIBE : // 3
|
|
$notenode = $forumnode->add(get_string('subscriptiondisabled', 'forum'));
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ($cansubscribe) {
|
|
if (forum_is_subscribed($USER->id, $forumobject)) {
|
|
$linktext = get_string('unsubscribe', 'forum');
|
|
} else {
|
|
$linktext = get_string('subscribe', 'forum');
|
|
}
|
|
$url = new moodle_url('/mod/forum/subscribe.php', array('id'=>$forumobject->id, 'sesskey'=>sesskey()));
|
|
$forumnode->add($linktext, $url, navigation_node::TYPE_SETTING);
|
|
}
|
|
|
|
if (has_capability('mod/forum:viewsubscribers', $PAGE->cm->context)){
|
|
$url = new moodle_url('/mod/forum/subscribers.php', array('id'=>$forumobject->id));
|
|
$forumnode->add(get_string('showsubscribers', 'forum'), $url, navigation_node::TYPE_SETTING);
|
|
}
|
|
|
|
if ($enrolled && forum_tp_can_track_forums($forumobject)) { // keep tracking info for users with suspended enrolments
|
|
if ($forumobject->trackingtype != FORUM_TRACKING_OPTIONAL) {
|
|
//tracking forced on or off in forum settings so dont provide a link here to change it
|
|
//could add unclickable text like for forced subscription but not sure this justifies adding another menu item
|
|
} else {
|
|
if (forum_tp_is_tracked($forumobject)) {
|
|
$linktext = get_string('notrackforum', 'forum');
|
|
} else {
|
|
$linktext = get_string('trackforum', 'forum');
|
|
}
|
|
$url = new moodle_url('/mod/forum/settracking.php', array('id'=>$forumobject->id));
|
|
$forumnode->add($linktext, $url, navigation_node::TYPE_SETTING);
|
|
}
|
|
}
|
|
|
|
if (!isloggedin() && $PAGE->course->id == SITEID) {
|
|
$userid = guest_user()->id;
|
|
} else {
|
|
$userid = $USER->id;
|
|
}
|
|
|
|
$hascourseaccess = ($PAGE->course->id == SITEID) || can_access_course($PAGE->course, $userid);
|
|
$enablerssfeeds = !empty($CFG->enablerssfeeds) && !empty($CFG->forum_enablerssfeeds);
|
|
|
|
if ($enablerssfeeds && $forumobject->rsstype && $forumobject->rssarticles && $hascourseaccess) {
|
|
|
|
if (!function_exists('rss_get_url')) {
|
|
require_once("$CFG->libdir/rsslib.php");
|
|
}
|
|
|
|
if ($forumobject->rsstype == 1) {
|
|
$string = get_string('rsssubscriberssdiscussions','forum');
|
|
} else {
|
|
$string = get_string('rsssubscriberssposts','forum');
|
|
}
|
|
|
|
$url = new moodle_url(rss_get_url($PAGE->cm->context->id, $userid, "mod_forum", $forumobject->id));
|
|
$forumnode->add($string, $url, settings_navigation::TYPE_SETTING, null, null, new pix_icon('i/rss', ''));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Abstract class used by forum subscriber selection controls
|
|
* @package mod-forum
|
|
* @copyright 2009 Sam Hemelryk
|
|
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
|
*/
|
|
abstract class forum_subscriber_selector_base extends user_selector_base {
|
|
|
|
/**
|
|
* The id of the forum this selector is being used for
|
|
* @var int
|
|
*/
|
|
protected $forumid = null;
|
|
/**
|
|
* The context of the forum this selector is being used for
|
|
* @var object
|
|
*/
|
|
protected $context = null;
|
|
/**
|
|
* The id of the current group
|
|
* @var int
|
|
*/
|
|
protected $currentgroup = null;
|
|
|
|
/**
|
|
* Constructor method
|
|
* @param string $name
|
|
* @param array $options
|
|
*/
|
|
public function __construct($name, $options) {
|
|
$options['accesscontext'] = $options['context'];
|
|
parent::__construct($name, $options);
|
|
if (isset($options['context'])) {
|
|
$this->context = $options['context'];
|
|
}
|
|
if (isset($options['currentgroup'])) {
|
|
$this->currentgroup = $options['currentgroup'];
|
|
}
|
|
if (isset($options['forumid'])) {
|
|
$this->forumid = $options['forumid'];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns an array of options to seralise and store for searches
|
|
*
|
|
* @return array
|
|
*/
|
|
protected function get_options() {
|
|
global $CFG;
|
|
$options = parent::get_options();
|
|
$options['file'] = substr(__FILE__, strlen($CFG->dirroot.'/'));
|
|
$options['context'] = $this->context;
|
|
$options['currentgroup'] = $this->currentgroup;
|
|
$options['forumid'] = $this->forumid;
|
|
return $options;
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* A user selector control for potential subscribers to the selected forum
|
|
* @package mod-forum
|
|
* @copyright 2009 Sam Hemelryk
|
|
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
|
*/
|
|
class forum_potential_subscriber_selector extends forum_subscriber_selector_base {
|
|
|
|
/**
|
|
* If set to true EVERYONE in this course is force subscribed to this forum
|
|
* @var bool
|
|
*/
|
|
protected $forcesubscribed = false;
|
|
/**
|
|
* Can be used to store existing subscribers so that they can be removed from
|
|
* the potential subscribers list
|
|
*/
|
|
protected $existingsubscribers = array();
|
|
|
|
/**
|
|
* Constructor method
|
|
* @param string $name
|
|
* @param array $options
|
|
*/
|
|
public function __construct($name, $options) {
|
|
parent::__construct($name, $options);
|
|
if (isset($options['forcesubscribed'])) {
|
|
$this->forcesubscribed=true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns an arary of options for this control
|
|
* @return array
|
|
*/
|
|
protected function get_options() {
|
|
$options = parent::get_options();
|
|
if ($this->forcesubscribed===true) {
|
|
$options['forcesubscribed']=1;
|
|
}
|
|
return $options;
|
|
}
|
|
|
|
/**
|
|
* Finds all potential users
|
|
*
|
|
* Potential users are determined by checking for users with a capability
|
|
* determined in {@see forum_get_potential_subscribers()}
|
|
*
|
|
* @param string $search
|
|
* @return array
|
|
*/
|
|
public function find_users($search) {
|
|
global $DB;
|
|
|
|
$availableusers = forum_get_potential_subscribers($this->context, $this->currentgroup, $this->required_fields_sql('u'), 'u.firstname ASC, u.lastname ASC');
|
|
|
|
if (empty($availableusers)) {
|
|
$availableusers = array();
|
|
} else if ($search) {
|
|
$search = strtolower($search);
|
|
foreach ($availableusers as $key=>$user) {
|
|
if (stripos($user->firstname, $search) === false && stripos($user->lastname, $search) === false) {
|
|
unset($availableusers[$key]);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Unset any existing subscribers
|
|
if (count($this->existingsubscribers)>0 && !$this->forcesubscribed) {
|
|
foreach ($this->existingsubscribers as $group) {
|
|
foreach ($group as $user) {
|
|
if (array_key_exists($user->id, $availableusers)) {
|
|
unset($availableusers[$user->id]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($this->forcesubscribed) {
|
|
return array(get_string("existingsubscribers", 'forum') => $availableusers);
|
|
} else {
|
|
return array(get_string("potentialsubscribers", 'forum') => $availableusers);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sets the existing subscribers
|
|
* @param array $users
|
|
*/
|
|
public function set_existing_subscribers(array $users) {
|
|
$this->existingsubscribers = $users;
|
|
}
|
|
|
|
/**
|
|
* Sets this forum as force subscribed or not
|
|
*/
|
|
public function set_force_subscribed($setting=true) {
|
|
$this->forcesubscribed = true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* User selector control for removing subscribed users
|
|
* @package mod-forum
|
|
* @copyright 2009 Sam Hemelryk
|
|
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
|
*/
|
|
class forum_existing_subscriber_selector extends forum_subscriber_selector_base {
|
|
|
|
/**
|
|
* Finds all subscribed users
|
|
*
|
|
* @param string $search
|
|
* @return array
|
|
*/
|
|
public function find_users($search) {
|
|
global $DB;
|
|
list($wherecondition, $params) = $this->search_sql($search, 'u');
|
|
$params['forumid'] = $this->forumid;
|
|
|
|
// only active enrolled or everybody on the frontpage
|
|
list($esql, $eparams) = get_enrolled_sql($this->context, '', $this->currentgroup, true);
|
|
$params = array_merge($params, $eparams);
|
|
|
|
$fields = $this->required_fields_sql('u');
|
|
|
|
$subscribers = $DB->get_records_sql("SELECT $fields
|
|
FROM {user} u
|
|
JOIN ($esql) je ON je.id = u.id
|
|
JOIN {forum_subscriptions} s ON s.userid = u.id
|
|
WHERE $wherecondition AND s.forum = :forumid
|
|
ORDER BY u.lastname ASC, u.firstname ASC", $params);
|
|
|
|
return array(get_string("existingsubscribers", 'forum') => $subscribers);
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* Adds information about unread messages, that is only required for the course view page (and
|
|
* similar), to the course-module object.
|
|
* @param cm_info $cm Course-module object
|
|
*/
|
|
function forum_cm_info_view(cm_info $cm) {
|
|
global $CFG;
|
|
|
|
// Get tracking status (once per request)
|
|
static $initialised;
|
|
static $usetracking, $strunreadpostsone;
|
|
if (!isset($initialised)) {
|
|
if ($usetracking = forum_tp_can_track_forums()) {
|
|
$strunreadpostsone = get_string('unreadpostsone', 'forum');
|
|
}
|
|
$initialised = true;
|
|
}
|
|
|
|
if ($usetracking) {
|
|
if ($unread = forum_tp_count_forum_unread_posts($cm, $cm->get_course())) {
|
|
$out = '<span class="unread"> <a href="' . $cm->get_url() . '">';
|
|
if ($unread == 1) {
|
|
$out .= $strunreadpostsone;
|
|
} else {
|
|
$out .= get_string('unreadpostsnumber', 'forum', $unread);
|
|
}
|
|
$out .= '</a></span>';
|
|
$cm->set_after_link($out);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return a list of page types
|
|
* @param string $pagetype current page type
|
|
* @param stdClass $parentcontext Block's parent context
|
|
* @param stdClass $currentcontext Current context of block
|
|
*/
|
|
function forum_page_type_list($pagetype, $parentcontext, $currentcontext) {
|
|
$forum_pagetype = array(
|
|
'mod-forum-*'=>get_string('page-mod-forum-x', 'forum'),
|
|
'mod-forum-view'=>get_string('page-mod-forum-view', 'forum'),
|
|
'mod-forum-discuss'=>get_string('page-mod-forum-discuss', 'forum')
|
|
);
|
|
return $forum_pagetype;
|
|
}
|
|
|
|
/**
|
|
* Gets all of the courses where the provided user has posted in a forum.
|
|
*
|
|
* @global moodle_database $DB The database connection
|
|
* @param stdClass $user The user who's posts we are looking for
|
|
* @param bool $discussionsonly If true only look for discussions started by the user
|
|
* @param bool $includecontexts If set to trye contexts for the courses will be preloaded
|
|
* @param int $limitfrom The offset of records to return
|
|
* @param int $limitnum The number of records to return
|
|
* @return array An array of courses
|
|
*/
|
|
function forum_get_courses_user_posted_in($user, $discussionsonly = false, $includecontexts = true, $limitfrom = null, $limitnum = null) {
|
|
global $DB;
|
|
|
|
// If we are only after discussions we need only look at the forum_discussions
|
|
// table and join to the userid there. If we are looking for posts then we need
|
|
// to join to the forum_posts table.
|
|
if (!$discussionsonly) {
|
|
$joinsql = 'JOIN {forum_discussions} fd ON fd.course = c.id
|
|
JOIN {forum_posts} fp ON fp.discussion = fd.id';
|
|
$wheresql = 'fp.userid = :userid';
|
|
$params = array('userid' => $user->id);
|
|
} else {
|
|
$joinsql = 'JOIN {forum_discussions} fd ON fd.course = c.id';
|
|
$wheresql = 'fd.userid = :userid';
|
|
$params = array('userid' => $user->id);
|
|
}
|
|
|
|
// Join to the context table so that we can preload contexts if required.
|
|
if ($includecontexts) {
|
|
list($ctxselect, $ctxjoin) = context_instance_preload_sql('c.id', CONTEXT_COURSE, 'ctx');
|
|
} else {
|
|
$ctxselect = '';
|
|
$ctxjoin = '';
|
|
}
|
|
|
|
// Now we need to get all of the courses to search.
|
|
// All courses where the user has posted within a forum will be returned.
|
|
$sql = "SELECT DISTINCT c.* $ctxselect
|
|
FROM {course} c
|
|
$joinsql
|
|
$ctxjoin
|
|
WHERE $wheresql";
|
|
$courses = $DB->get_records_sql($sql, $params, $limitfrom, $limitnum);
|
|
if ($includecontexts) {
|
|
array_map('context_instance_preload', $courses);
|
|
}
|
|
return $courses;
|
|
}
|
|
|
|
/**
|
|
* Gets all of the forums a user has posted in for one or more courses.
|
|
*
|
|
* @global moodle_database $DB
|
|
* @param stdClass $user
|
|
* @param array $courseids An array of courseids to search or if not provided
|
|
* all courses the user has posted within
|
|
* @param bool $discussionsonly If true then only forums where the user has started
|
|
* a discussion will be returned.
|
|
* @param int $limitfrom The offset of records to return
|
|
* @param int $limitnum The number of records to return
|
|
* @return array An array of forums the user has posted within in the provided courses
|
|
*/
|
|
function forum_get_forums_user_posted_in($user, array $courseids = null, $discussionsonly = false, $limitfrom = null, $limitnum = null) {
|
|
global $DB;
|
|
|
|
$where = array("m.name = 'forum'");
|
|
$params = array();
|
|
if (!is_null($courseids)) {
|
|
list($coursewhere, $params) = $DB->get_in_or_equal($courseids, SQL_PARAMS_NAMED, 'courseid');
|
|
$where[] = 'f.course '.$coursewhere;
|
|
}
|
|
if (!$discussionsonly) {
|
|
$joinsql = 'JOIN {forum_discussions} fd ON fd.forum = f.id
|
|
JOIN {forum_posts} fp ON fp.discussion = fd.id';
|
|
$where[] = 'fp.userid = :userid';
|
|
} else {
|
|
$joinsql = 'JOIN {forum_discussions} fd ON fd.forum = f.id';
|
|
$where[] = 'fd.userid = :userid';
|
|
}
|
|
$params['userid'] = $user->id;
|
|
$wheresql = join(' AND ', $where);
|
|
|
|
$sql = "SELECT DISTINCT f.*, cm.id AS cmid
|
|
FROM {forum} f
|
|
JOIN {course_modules} cm ON cm.instance = f.id
|
|
JOIN {modules} m ON m.id = cm.module
|
|
$joinsql
|
|
WHERE $wheresql";
|
|
$courseforums = $DB->get_records_sql($sql, $params, $limitfrom, $limitnum);
|
|
return $courseforums;
|
|
}
|
|
|
|
/**
|
|
* Returns posts made by the selected user in the requested courses.
|
|
*
|
|
* This method can be used to return all of the posts made by the requested user
|
|
* within the given courses.
|
|
* For each course the access of the current user and requested user is checked
|
|
* and then for each post access to the post and forum is checked as well.
|
|
*
|
|
* This function is safe to use with usercapabilities.
|
|
*
|
|
* @global moodle_database $DB
|
|
* @param stdClass $user The user whose posts we want to get
|
|
* @param array $courses The courses to search
|
|
* @param bool $musthaveaccess If set to true errors will be thrown if the user
|
|
* cannot access one or more of the courses to search
|
|
* @param bool $discussionsonly If set to true only discussion starting posts
|
|
* will be returned.
|
|
* @param int $limitfrom The offset of records to return
|
|
* @param int $limitnum The number of records to return
|
|
* @return stdClass An object the following properties
|
|
* ->totalcount: the total number of posts made by the requested user
|
|
* that the current user can see.
|
|
* ->courses: An array of courses the current user can see that the
|
|
* requested user has posted in.
|
|
* ->forums: An array of forums relating to the posts returned in the
|
|
* property below.
|
|
* ->posts: An array containing the posts to show for this request.
|
|
*/
|
|
function forum_get_posts_by_user($user, array $courses, $musthaveaccess = false, $discussionsonly = false, $limitfrom = 0, $limitnum = 50) {
|
|
global $DB, $USER, $CFG;
|
|
|
|
$return = new stdClass;
|
|
$return->totalcount = 0; // The total number of posts that the current user is able to view
|
|
$return->courses = array(); // The courses the current user can access
|
|
$return->forums = array(); // The forums that the current user can access that contain posts
|
|
$return->posts = array(); // The posts to display
|
|
|
|
// First up a small sanity check. If there are no courses to check we can
|
|
// return immediately, there is obviously nothing to search.
|
|
if (empty($courses)) {
|
|
return $return;
|
|
}
|
|
|
|
// A couple of quick setups
|
|
$isloggedin = isloggedin();
|
|
$isguestuser = $isloggedin && isguestuser();
|
|
$iscurrentuser = $isloggedin && $USER->id == $user->id;
|
|
|
|
// Checkout whether or not the current user has capabilities over the requested
|
|
// user and if so they have the capabilities required to view the requested
|
|
// users content.
|
|
$usercontext = get_context_instance(CONTEXT_USER, $user->id, MUST_EXIST);
|
|
$hascapsonuser = !$iscurrentuser && $DB->record_exists('role_assignments', array('userid' => $USER->id, 'contextid' => $usercontext->id));
|
|
$hascapsonuser = $hascapsonuser && has_all_capabilities(array('moodle/user:viewdetails', 'moodle/user:readuserposts'), $usercontext);
|
|
|
|
// Before we actually search each course we need to check the user's access to the
|
|
// course. If the user doesn't have the appropraite access then we either throw an
|
|
// error if a particular course was requested or we just skip over the course.
|
|
foreach ($courses as $course) {
|
|
$coursecontext = get_context_instance(CONTEXT_COURSE, $course->id, MUST_EXIST);
|
|
if ($iscurrentuser || $hascapsonuser) {
|
|
// If it is the current user, or the current user has capabilities to the
|
|
// requested user then all we need to do is check the requested users
|
|
// current access to the course.
|
|
// Note: There is no need to check group access or anything of the like
|
|
// as either the current user is the requested user, or has granted
|
|
// capabilities on the requested user. Either way they can see what the
|
|
// requested user posted, although its VERY unlikely in the `parent` situation
|
|
// that the current user will be able to view the posts in context.
|
|
if (!is_viewing($coursecontext, $user) && !is_enrolled($coursecontext, $user)) {
|
|
// Need to have full access to a course to see the rest of own info
|
|
if ($musthaveaccess) {
|
|
print_error('errorenrolmentrequired', 'forum');
|
|
}
|
|
continue;
|
|
}
|
|
} else {
|
|
// Check whether the current user is enrolled or has access to view the course
|
|
// if they don't we immediately have a problem.
|
|
if (!can_access_course($course)) {
|
|
if ($musthaveaccess) {
|
|
print_error('errorenrolmentrequired', 'forum');
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// Check whether the requested user is enrolled or has access to view the course
|
|
// if they don't we immediately have a problem.
|
|
if (!can_access_course($course, $user)) {
|
|
if ($musthaveaccess) {
|
|
print_error('notenrolled', 'forum');
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// If groups are in use and enforced throughout the course then make sure
|
|
// we can meet in at least one course level group.
|
|
// Note that we check if either the current user or the requested user have
|
|
// the capability to access all groups. This is because with that capability
|
|
// a user in group A could post in the group B forum. Grrrr.
|
|
if (groups_get_course_groupmode($course) == SEPARATEGROUPS && $course->groupmodeforce
|
|
&& !has_capability('moodle/site:accessallgroups', $coursecontext) && !has_capability('moodle/site:accessallgroups', $coursecontext, $user->id)) {
|
|
// If its the guest user to bad... the guest user cannot access groups
|
|
if (!$isloggedin or $isguestuser) {
|
|
// do not use require_login() here because we might have already used require_login($course)
|
|
if ($musthaveaccess) {
|
|
redirect(get_login_url());
|
|
}
|
|
continue;
|
|
}
|
|
// Get the groups of the current user
|
|
$mygroups = array_keys(groups_get_all_groups($course->id, $USER->id, $course->defaultgroupingid, 'g.id, g.name'));
|
|
// Get the groups the requested user is a member of
|
|
$usergroups = array_keys(groups_get_all_groups($course->id, $user->id, $course->defaultgroupingid, 'g.id, g.name'));
|
|
// Check whether they are members of the same group. If they are great.
|
|
$intersect = array_intersect($mygroups, $usergroups);
|
|
if (empty($intersect)) {
|
|
// But they're not... if it was a specific course throw an error otherwise
|
|
// just skip this course so that it is not searched.
|
|
if ($musthaveaccess) {
|
|
print_error("groupnotamember", '', $CFG->wwwroot."/course/view.php?id=$course->id");
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
// Woo hoo we got this far which means the current user can search this
|
|
// this course for the requested user. Although this is only the course accessibility
|
|
// handling that is complete, the forum accessibility tests are yet to come.
|
|
$return->courses[$course->id] = $course;
|
|
}
|
|
// No longer beed $courses array - lose it not it may be big
|
|
unset($courses);
|
|
|
|
// Make sure that we have some courses to search
|
|
if (empty($return->courses)) {
|
|
// If we don't have any courses to search then the reality is that the current
|
|
// user doesn't have access to any courses is which the requested user has posted.
|
|
// Although we do know at this point that the requested user has posts.
|
|
if ($musthaveaccess) {
|
|
print_error('permissiondenied');
|
|
} else {
|
|
return $return;
|
|
}
|
|
}
|
|
|
|
// Next step: Collect all of the forums that we will want to search.
|
|
// It is important to note that this step isn't actually about searching, it is
|
|
// about determining which forums we can search by testing accessibility.
|
|
$forums = forum_get_forums_user_posted_in($user, array_keys($return->courses), $discussionsonly);
|
|
|
|
// Will be used to build the where conditions for the search
|
|
$forumsearchwhere = array();
|
|
// Will be used to store the where condition params for the search
|
|
$forumsearchparams = array();
|
|
// Will record forums where the user can freely access everything
|
|
$forumsearchfullaccess = array();
|
|
// DB caching friendly
|
|
$now = round(time(), -2);
|
|
// For each course to search we want to find the forums the user has posted in
|
|
// and providing the current user can access the forum create a search condition
|
|
// for the forum to get the requested users posts.
|
|
foreach ($return->courses as $course) {
|
|
// Now we need to get the forums
|
|
$modinfo = get_fast_modinfo($course);
|
|
if (empty($modinfo->instances['forum'])) {
|
|
// hmmm, no forums? well at least its easy... skip!
|
|
continue;
|
|
}
|
|
// Iterate
|
|
foreach ($modinfo->get_instances_of('forum') as $forumid => $cm) {
|
|
if (!$cm->uservisible or !isset($forums[$forumid])) {
|
|
continue;
|
|
}
|
|
// Get the forum in question
|
|
$forum = $forums[$forumid];
|
|
// This is needed for functionality later on in the forum code....
|
|
$forum->cm = $cm;
|
|
|
|
// Check that either the current user can view the forum, or that the
|
|
// current user has capabilities over the requested user and the requested
|
|
// user can view the discussion
|
|
if (!has_capability('mod/forum:viewdiscussion', $cm->context) && !($hascapsonuser && has_capability('mod/forum:viewdiscussion', $cm->context, $user->id))) {
|
|
continue;
|
|
}
|
|
|
|
// This will contain forum specific where clauses
|
|
$forumsearchselect = array();
|
|
if (!$iscurrentuser && !$hascapsonuser) {
|
|
// Make sure we check group access
|
|
if (groups_get_activity_groupmode($cm, $course) == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $cm->context)) {
|
|
$groups = $modinfo->get_groups($cm->groupingid);
|
|
$groups[] = -1;
|
|
list($groupid_sql, $groupid_params) = $DB->get_in_or_equal($groups, SQL_PARAMS_NAMED, 'grps'.$forumid.'_');
|
|
$forumsearchparams = array_merge($forumsearchparams, $groupid_params);
|
|
$forumsearchselect[] = "d.groupid $groupid_sql";
|
|
}
|
|
|
|
// hidden timed discussions
|
|
if (!empty($CFG->forum_enabletimedposts) && !has_capability('mod/forum:viewhiddentimedposts', $cm->context)) {
|
|
$forumsearchselect[] = "(d.userid = :userid{$forumid} OR (d.timestart < :timestart{$forumid} AND (d.timeend = 0 OR d.timeend > :timeend{$forumid})))";
|
|
$forumsearchparams['userid'.$forumid] = $user->id;
|
|
$forumsearchparams['timestart'.$forumid] = $now;
|
|
$forumsearchparams['timeend'.$forumid] = $now;
|
|
}
|
|
|
|
// qanda access
|
|
if ($forum->type == 'qanda' && !has_capability('mod/forum:viewqandawithoutposting', $cm->context)) {
|
|
// We need to check whether the user has posted in the qanda forum.
|
|
$discussionspostedin = forum_discussions_user_has_posted_in($forum->id, $user->id);
|
|
if (!empty($discussionspostedin)) {
|
|
$forumonlydiscussions = array(); // Holds discussion ids for the discussions the user is allowed to see in this forum.
|
|
foreach ($discussionspostedin as $d) {
|
|
$forumonlydiscussions[] = $d->id;
|
|
}
|
|
list($discussionid_sql, $discussionid_params) = $DB->get_in_or_equal($forumonlydiscussions, SQL_PARAMS_NAMED, 'qanda'.$forumid.'_');
|
|
$forumsearchparams = array_merge($forumsearchparams, $discussionid_params);
|
|
$forumsearchselect[] = "(d.id $discussionid_sql OR p.parent = 0)";
|
|
} else {
|
|
$forumsearchselect[] = "p.parent = 0";
|
|
}
|
|
|
|
}
|
|
|
|
if (count($forumsearchselect) > 0) {
|
|
$forumsearchwhere[] = "(d.forum = :forum{$forumid} AND ".implode(" AND ", $forumsearchselect).")";
|
|
$forumsearchparams['forum'.$forumid] = $forumid;
|
|
} else {
|
|
$forumsearchfullaccess[] = $forumid;
|
|
}
|
|
} else {
|
|
// The current user/parent can see all of their own posts
|
|
$forumsearchfullaccess[] = $forumid;
|
|
}
|
|
}
|
|
}
|
|
|
|
// If we dont have any search conditions, and we don't have any forums where
|
|
// the user has full access then we just return the default.
|
|
if (empty($forumsearchwhere) && empty($forumsearchfullaccess)) {
|
|
return $return;
|
|
}
|
|
|
|
// Prepare a where condition for the full access forums.
|
|
if (count($forumsearchfullaccess) > 0) {
|
|
list($fullidsql, $fullidparams) = $DB->get_in_or_equal($forumsearchfullaccess, SQL_PARAMS_NAMED, 'fula');
|
|
$forumsearchparams = array_merge($forumsearchparams, $fullidparams);
|
|
$forumsearchwhere[] = "(d.forum $fullidsql)";
|
|
}
|
|
|
|
// Prepare SQL to both count and search
|
|
$userfields = user_picture::fields('u', null, 'userid');
|
|
$countsql = 'SELECT COUNT(*) ';
|
|
$selectsql = 'SELECT p.*, d.forum, d.name AS discussionname, '.$userfields.' ';
|
|
$wheresql = implode(" OR ", $forumsearchwhere);
|
|
|
|
if ($discussionsonly) {
|
|
if ($wheresql == '') {
|
|
$wheresql = 'p.parent = 0';
|
|
} else {
|
|
$wheresql = 'p.parent = 0 AND ('.$wheresql.')';
|
|
}
|
|
}
|
|
|
|
$sql = "FROM {forum_posts} p
|
|
JOIN {forum_discussions} d ON d.id = p.discussion
|
|
JOIN {user} u ON u.id = p.userid
|
|
WHERE ($wheresql)
|
|
AND p.userid = :userid ";
|
|
$orderby = "ORDER BY p.modified DESC";
|
|
$forumsearchparams['userid'] = $user->id;
|
|
|
|
// Set the total number posts made by the requested user that the current user can see
|
|
$return->totalcount = $DB->count_records_sql($countsql.$sql, $forumsearchparams);
|
|
// Set the collection of posts that has been requested
|
|
$return->posts = $DB->get_records_sql($selectsql.$sql.$orderby, $forumsearchparams, $limitfrom, $limitnum);
|
|
|
|
// We need to build an array of forums for which posts will be displayed.
|
|
// We do this here to save the caller needing to retrieve them themselves before
|
|
// printing these forums posts. Given we have the forums already there is
|
|
// practically no overhead here.
|
|
foreach ($return->posts as $post) {
|
|
if (!array_key_exists($post->forum, $return->forums)) {
|
|
$return->forums[$post->forum] = $forums[$post->forum];
|
|
}
|
|
}
|
|
|
|
return $return;
|
|
}
|