mirror of
https://github.com/moodle/moodle.git
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301 lines
12 KiB
PHP
301 lines
12 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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* Displays a post, and all the posts below it.
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* If no post is given, displays all posts in a discussion
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*
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* @package mod-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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require_once('../../config.php');
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$d = required_param('d', PARAM_INT); // Discussion ID
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$parent = optional_param('parent', 0, PARAM_INT); // If set, then display this post and all children.
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$mode = optional_param('mode', 0, PARAM_INT); // If set, changes the layout of the thread
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$move = optional_param('move', 0, PARAM_INT); // If set, moves this discussion to another forum
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$mark = optional_param('mark', '', PARAM_ALPHA); // Used for tracking read posts if user initiated.
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$postid = optional_param('postid', 0, PARAM_INT); // Used for tracking read posts if user initiated.
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$url = new moodle_url($CFG->wwwroot.'/mod/forum/discuss.php', array('d'=>$d));
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if ($parent !== 0) {
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$url->param('parent', $parent);
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}
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if ($mode !== 0) {
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$url->param('mode', $mode);
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}
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if ($move !== 0) {
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$url->param('move', $move);
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}
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if ($mark !== '') {
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$url->param('mark', $mark);
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}
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if ($postid !== 0) {
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$url->param('postid', $postid);
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}
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$PAGE->set_url($url);
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if (!$discussion = $DB->get_record('forum_discussions', array('id' => $d))) {
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print_error('invaliddiscussionid', 'forum');
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}
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if (!$course = $DB->get_record('course', array('id' => $discussion->course))) {
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print_error('invalidcourseid');
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}
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if (!$forum = $DB->get_record('forum', array('id' => $discussion->forum))) {
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echo $OUTPUT->notification("Bad forum ID stored in this discussion");
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}
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if (!$cm = get_coursemodule_from_instance('forum', $forum->id, $course->id)) {
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print_error('invalidcoursemodule');
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}
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require_course_login($course, true, $cm);
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/// Add ajax-related libs
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$PAGE->requires->yui2_lib('event');
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$PAGE->requires->yui2_lib('connection');
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$PAGE->requires->yui2_lib('json');
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$PAGE->requires->js('mod/forum/rate_ajax.js');
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// move this down fix for MDL-6926
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require_once('lib.php');
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$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
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require_capability('mod/forum:viewdiscussion', $modcontext, NULL, true, 'noviewdiscussionspermission', 'forum');
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if ($forum->type == 'news') {
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if (!($USER->id == $discussion->userid || (($discussion->timestart == 0
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|| $discussion->timestart <= time())
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&& ($discussion->timeend == 0 || $discussion->timeend > time())))) {
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print_error('invaliddiscussionid', 'forum', "$CFG->wwwroot/mod/forum/view.php?f=$forum->id");
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}
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}
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/// move discussion if requested
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if ($move > 0 and confirm_sesskey()) {
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$return = $CFG->wwwroot.'/mod/forum/discuss.php?d='.$discussion->id;
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require_capability('mod/forum:movediscussions', $modcontext);
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if ($forum->type == 'single') {
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print_error('cannotmovefromsingleforum', 'forum', $return);
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}
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if (!$forumto = $DB->get_record('forum', array('id' => $move))) {
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print_error('cannotmovetonotexist', 'forum', $return);
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}
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if (!$cmto = get_coursemodule_from_instance('forum', $forumto->id, $course->id)) {
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print_error('cannotmovetonotfound', 'forum', $return);
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}
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if (!coursemodule_visible_for_user($cmto)) {
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print_error('cannotmovenotvisible', 'forum', $return);
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}
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require_capability('mod/forum:startdiscussion',
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get_context_instance(CONTEXT_MODULE,$cmto->id));
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if (!forum_move_attachments($discussion, $forum->id, $forumto->id)) {
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echo $OUTPUT->notification("Errors occurred while moving attachment directories - check your file permissions");
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}
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$DB->set_field('forum_discussions', 'forum', $forumto->id, array('id' => $discussion->id));
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$DB->set_field('forum_read', 'forumid', $forumto->id, array('discussionid' => $discussion->id));
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add_to_log($course->id, 'forum', 'move discussion', "discuss.php?d=$discussion->id", $discussion->id, $cmto->id);
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require_once($CFG->libdir.'/rsslib.php');
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require_once('rsslib.php');
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// Delete the RSS files for the 2 forums because we want to force
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// the regeneration of the feeds since the discussions have been
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// moved.
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if (!forum_rss_delete_file($forum) || !forum_rss_delete_file($forumto)) {
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print_error('cannotpurgecachedrss', 'forum', $return);
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}
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redirect($return.'&moved=-1&sesskey='.sesskey());
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}
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$logparameters = "d=$discussion->id";
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if ($parent) {
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$logparameters .= "&parent=$parent";
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}
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add_to_log($course->id, 'forum', 'view discussion', "discuss.php?$logparameters", $discussion->id, $cm->id);
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unset($SESSION->fromdiscussion);
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if ($mode) {
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set_user_preference('forum_displaymode', $mode);
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}
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$displaymode = get_user_preferences('forum_displaymode', $CFG->forum_displaymode);
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if ($parent) {
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// If flat AND parent, then force nested display this time
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if ($displaymode == FORUM_MODE_FLATOLDEST or $displaymode == FORUM_MODE_FLATNEWEST) {
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$displaymode = FORUM_MODE_NESTED;
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}
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} else {
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$parent = $discussion->firstpost;
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}
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if (! $post = forum_get_post_full($parent)) {
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print_error("notexists", 'forum', "$CFG->wwwroot/mod/forum/view.php?f=$forum->id");
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}
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if (!forum_user_can_view_post($post, $course, $cm, $forum, $discussion)) {
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print_error('nopermissiontoview', 'forum', "$CFG->wwwroot/mod/forum/view.php?id=$forum->id");
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}
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if ($mark == 'read' or $mark == 'unread') {
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if ($CFG->forum_usermarksread && forum_tp_can_track_forums($forum) && forum_tp_is_tracked($forum)) {
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if ($mark == 'read') {
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forum_tp_add_read_record($USER->id, $postid);
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} else {
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// unread
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forum_tp_delete_read_records($USER->id, $postid);
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}
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}
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}
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$searchform = forum_search_form($course);
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$PAGE->navbar->add(format_string($discussion->name), new moodle_url($CFG->wwwroot.'/mod/forum/discuss.php', array('d'=>$discussion->id)));
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if ($parent != $discussion->firstpost) {
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$PAGE->navbar->add(format_string($post->subject));
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}
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$PAGE->set_title("$course->shortname: ".format_string($discussion->name));
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$PAGE->set_heading($course->fullname);
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$PAGE->set_button($searchform);
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echo $OUTPUT->header();
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/// Check to see if groups are being used in this forum
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/// If so, make sure the current person is allowed to see this discussion
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/// Also, if we know they should be able to reply, then explicitly set $canreply for performance reasons
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if (isguestuser() or !isloggedin() or has_capability('moodle/legacy:guest', $modcontext, NULL, false)) {
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// allow guests and not-logged-in to see the link - they are prompted to log in after clicking the link
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$canreply = ($forum->type != 'news'); // no reply in news forums
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} else {
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$canreply = forum_user_can_post($forum, $discussion, $USER, $cm, $course, $modcontext);
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}
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/// Print the controls across the top
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echo '<table width="100%" class="discussioncontrols"><tr><td>';
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// groups selector not needed here
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echo "</td><td>";
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forum_print_mode_form($discussion->id, $displaymode);
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echo "</td><td>";
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if (has_capability('mod/forum:exportdiscussion', $modcontext)) {
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require_once($CFG->libdir.'/portfoliolib.php');
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$button = new portfolio_add_button();
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$button->set_callback_options('forum_portfolio_caller', array('discussionid' => $discussion->id), '/mod/forum/locallib.php');
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$button->render();
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echo '</td><td>';
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}
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if ($forum->type != 'single'
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&& has_capability('mod/forum:movediscussions', $modcontext)) {
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// Popup menu to move discussions to other forums. The discussion in a
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// single discussion forum can't be moved.
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$modinfo = get_fast_modinfo($course);
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if (isset($modinfo->instances['forum'])) {
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if ($course->format == 'weeks') {
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$strsection = get_string("week");
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} else {
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$strsection = get_string("topic");
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}
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$section = -1;
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$forummenu = array();
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foreach ($modinfo->instances['forum'] as $forumcm) {
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if (!$forumcm->uservisible || !has_capability('mod/forum:startdiscussion',
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get_context_instance(CONTEXT_MODULE,$forumcm->id))) {
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continue;
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}
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if (!empty($forumcm->sectionnum) and $section != $forumcm->sectionnum) {
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$forummenu[] = "-------------- $strsection $forumcm->sectionnum --------------";
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}
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$section = $forumcm->sectionnum;
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if ($forumcm->instance != $forum->id) {
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$url = $CFG->wwwroot . "/mod/forum/discuss.php?d=$discussion->id&move=$forumcm->instance&sesskey=".sesskey();
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$forummenu[$url] = format_string($forumcm->name);
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}
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}
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if (!empty($forummenu)) {
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// Check for empty groups... This can occur if there is the forum we are in is
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// the only forum within its course section.
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foreach ($forummenu as $key=>$item) {
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// If this option is a group and the next option is a group OR it is
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// the last item in the array then remove it... or we get an exception
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if (strpos($item, '--------------')===0 && (!array_key_exists($key+1, $forummenu) || strpos($forummenu[$key+1], '--------------')===0)) {
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// Remember foreach acts on a copy of the array so things
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// will not get out of order
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unset($forummenu[$key]);
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}
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}
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echo "<div style=\"float:right;\">";
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$select = html_select::make_popup_form('', '', $forummenu, 'forummenu');
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$select->nothinglabel = get_string("movethisdiscussionto", "forum");
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$select->form->button->text = get_string('move');
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$select->override_option_values($forummenu);
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echo $OUTPUT->select($select);
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echo "</div>";
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}
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}
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}
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echo "</td></tr></table>";
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if (!empty($forum->blockafter) && !empty($forum->blockperiod)) {
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$a = new object();
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$a->blockafter = $forum->blockafter;
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$a->blockperiod = get_string('secondstotime'.$forum->blockperiod);
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echo $OUTPUT->notification(get_string('thisforumisthrottled','forum',$a));
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}
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if ($forum->type == 'qanda' && !has_capability('mod/forum:viewqandawithoutposting', $modcontext) &&
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!forum_user_has_posted($forum->id,$discussion->id,$USER->id)) {
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echo $OUTPUT->notification(get_string('qandanotify','forum'));
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}
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if ($move == -1 and confirm_sesskey()) {
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echo $OUTPUT->notification(get_string('discussionmoved', 'forum', format_string($forum->name,true)));
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}
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$canrate = has_capability('mod/forum:rate', $modcontext);
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forum_print_discussion($course, $cm, $forum, $discussion, $post, $displaymode, $canreply, $canrate);
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echo $OUTPUT->footer();
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