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1359 lines
49 KiB
PHP
1359 lines
49 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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* Standard library of functions and constants for lesson
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*
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* @package mod_lesson
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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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/* Do not include any libraries here! */
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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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* @global object
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* @global object
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* @param object $lesson Lesson post data from the form
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* @return int
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**/
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function lesson_add_instance($data, $mform) {
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global $DB;
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$cmid = $data->coursemodule;
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$draftitemid = $data->mediafile;
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$context = context_module::instance($cmid);
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lesson_process_pre_save($data);
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unset($data->mediafile);
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$lessonid = $DB->insert_record("lesson", $data);
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$data->id = $lessonid;
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lesson_update_media_file($lessonid, $context, $draftitemid);
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lesson_process_post_save($data);
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lesson_grade_item_update($data);
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return $lessonid;
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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 $lesson Lesson post data from the form
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* @return boolean
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**/
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function lesson_update_instance($data, $mform) {
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global $DB;
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$data->id = $data->instance;
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$cmid = $data->coursemodule;
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$draftitemid = $data->mediafile;
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$context = context_module::instance($cmid);
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lesson_process_pre_save($data);
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unset($data->mediafile);
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$DB->update_record("lesson", $data);
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lesson_update_media_file($data->id, $context, $draftitemid);
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lesson_process_post_save($data);
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// update grade item definition
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lesson_grade_item_update($data);
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// update grades - TODO: do it only when grading style changes
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lesson_update_grades($data, 0, false);
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return true;
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}
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/**
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* This function updates the events associated to the lesson.
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* If $override is non-zero, then it updates only the events
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* associated with the specified override.
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*
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* @uses LESSON_MAX_EVENT_LENGTH
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* @param object $lesson the lesson object.
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* @param object $override (optional) limit to a specific override
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*/
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function lesson_update_events($lesson, $override = null) {
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global $CFG, $DB;
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require_once($CFG->dirroot . '/calendar/lib.php');
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// Load the old events relating to this lesson.
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$conds = array('modulename' => 'lesson',
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'instance' => $lesson->id);
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if (!empty($override)) {
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// Only load events for this override.
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if (isset($override->userid)) {
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$conds['userid'] = $override->userid;
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} else {
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$conds['groupid'] = $override->groupid;
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}
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}
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$oldevents = $DB->get_records('event', $conds);
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// Now make a todo list of all that needs to be updated.
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if (empty($override)) {
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// We are updating the primary settings for the lesson, so we
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// need to add all the overrides.
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$overrides = $DB->get_records('lesson_overrides', array('lessonid' => $lesson->id));
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// As well as the original lesson (empty override).
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$overrides[] = new stdClass();
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} else {
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// Just do the one override.
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$overrides = array($override);
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}
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foreach ($overrides as $current) {
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$groupid = isset($current->groupid) ? $current->groupid : 0;
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$userid = isset($current->userid) ? $current->userid : 0;
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$available = isset($current->available) ? $current->available : $lesson->available;
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$deadline = isset($current->deadline) ? $current->deadline : $lesson->deadline;
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// Only add open/close events for an override if they differ from the lesson default.
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$addopen = empty($current->id) || !empty($current->available);
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$addclose = empty($current->id) || !empty($current->deadline);
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if (!empty($lesson->coursemodule)) {
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$cmid = $lesson->coursemodule;
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} else {
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$cmid = get_coursemodule_from_instance('lesson', $lesson->id, $lesson->course)->id;
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}
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$event = new stdClass();
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$event->description = format_module_intro('lesson', $lesson, $cmid);
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// Events module won't show user events when the courseid is nonzero.
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$event->courseid = ($userid) ? 0 : $lesson->course;
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$event->groupid = $groupid;
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$event->userid = $userid;
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$event->modulename = 'lesson';
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$event->instance = $lesson->id;
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$event->timestart = $available;
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$event->timeduration = max($deadline - $available, 0);
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$event->visible = instance_is_visible('lesson', $lesson);
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$event->eventtype = 'open';
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// Determine the event name.
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if ($groupid) {
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$params = new stdClass();
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$params->lesson = $lesson->name;
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$params->group = groups_get_group_name($groupid);
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if ($params->group === false) {
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// Group doesn't exist, just skip it.
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continue;
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}
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$eventname = get_string('overridegroupeventname', 'lesson', $params);
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} else if ($userid) {
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$params = new stdClass();
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$params->lesson = $lesson->name;
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$eventname = get_string('overrideusereventname', 'lesson', $params);
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} else {
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$eventname = $lesson->name;
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}
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if ($addopen or $addclose) {
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if ($deadline and $available and $event->timeduration <= LESSON_MAX_EVENT_LENGTH) {
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// Single event for the whole lesson.
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if ($oldevent = array_shift($oldevents)) {
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$event->id = $oldevent->id;
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} else {
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unset($event->id);
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}
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$event->name = $eventname;
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// The method calendar_event::create will reuse a db record if the id field is set.
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calendar_event::create($event);
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} else {
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// Separate start and end events.
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$event->timeduration = 0;
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if ($available && $addopen) {
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if ($oldevent = array_shift($oldevents)) {
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$event->id = $oldevent->id;
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} else {
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unset($event->id);
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}
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$event->name = $eventname.' ('.get_string('lessonopens', 'lesson').')';
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// The method calendar_event::create will reuse a db record if the id field is set.
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calendar_event::create($event);
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}
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if ($deadline && $addclose) {
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if ($oldevent = array_shift($oldevents)) {
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$event->id = $oldevent->id;
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} else {
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unset($event->id);
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}
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$event->name = $eventname.' ('.get_string('lessoncloses', 'lesson').')';
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$event->timestart = $deadline;
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$event->eventtype = 'close';
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calendar_event::create($event);
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}
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}
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}
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}
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// Delete any leftover events.
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foreach ($oldevents as $badevent) {
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$badevent = calendar_event::load($badevent);
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$badevent->delete();
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}
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}
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/**
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* This standard function will check all instances of this module
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* and make sure there are up-to-date events created for each of them.
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* If courseid = 0, then every lesson event in the site is checked, else
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* only lesson events belonging to the course specified are checked.
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* This function is used, in its new format, by restore_refresh_events()
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*
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* @param int $courseid
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* @return bool
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*/
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function lesson_refresh_events($courseid = 0) {
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global $DB;
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if ($courseid == 0) {
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if (!$lessons = $DB->get_records('lessons')) {
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return true;
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}
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} else {
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if (!$lessons = $DB->get_records('lesson', array('course' => $courseid))) {
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return true;
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}
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}
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foreach ($lessons as $lesson) {
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lesson_update_events($lesson);
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}
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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 $id
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* @return bool
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*/
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function lesson_delete_instance($id) {
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global $DB, $CFG;
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require_once($CFG->dirroot . '/mod/lesson/locallib.php');
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$lesson = $DB->get_record("lesson", array("id"=>$id), '*', MUST_EXIST);
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$lesson = new lesson($lesson);
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return $lesson->delete();
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}
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/**
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* Given a course object, this function will clean up anything that
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* would be leftover after all the instances were deleted
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*
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* @global object
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* @param object $course an object representing the course that is being deleted
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* @param boolean $feedback to specify if the process must output a summary of its work
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* @return boolean
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*/
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function lesson_delete_course($course, $feedback=true) {
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return true;
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}
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/**
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* Return a small object with summary information about what a
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* user has done with a given particular instance of this module
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* Used for user activity reports.
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* $return->time = the time they did it
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* $return->info = a short text description
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*
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* @global object
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* @param object $course
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* @param object $user
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* @param object $mod
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* @param object $lesson
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* @return object
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*/
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function lesson_user_outline($course, $user, $mod, $lesson) {
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global $CFG;
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require_once("$CFG->libdir/gradelib.php");
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$grades = grade_get_grades($course->id, 'mod', 'lesson', $lesson->id, $user->id);
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$return = new stdClass();
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if (empty($grades->items[0]->grades)) {
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$return->info = get_string("no")." ".get_string("attempts", "lesson");
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} else {
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$grade = reset($grades->items[0]->grades);
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$return->info = get_string("grade") . ': ' . $grade->str_long_grade;
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//datesubmitted == time created. dategraded == time modified or time overridden
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//if grade was last modified by the user themselves use date graded. Otherwise use date submitted
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//TODO: move this copied & pasted code somewhere in the grades API. See MDL-26704
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if ($grade->usermodified == $user->id || empty($grade->datesubmitted)) {
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$return->time = $grade->dategraded;
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} else {
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$return->time = $grade->datesubmitted;
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}
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}
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return $return;
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}
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/**
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* Print a detailed representation of what a user has done with
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* a given particular instance of this module, for user activity reports.
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*
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* @global object
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* @param object $course
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* @param object $user
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* @param object $mod
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* @param object $lesson
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* @return bool
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*/
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function lesson_user_complete($course, $user, $mod, $lesson) {
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global $DB, $OUTPUT, $CFG;
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require_once("$CFG->libdir/gradelib.php");
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$grades = grade_get_grades($course->id, 'mod', 'lesson', $lesson->id, $user->id);
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if (!empty($grades->items[0]->grades)) {
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$grade = reset($grades->items[0]->grades);
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echo $OUTPUT->container(get_string('grade').': '.$grade->str_long_grade);
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if ($grade->str_feedback) {
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echo $OUTPUT->container(get_string('feedback').': '.$grade->str_feedback);
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}
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}
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$params = array ("lessonid" => $lesson->id, "userid" => $user->id);
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if ($attempts = $DB->get_records_select("lesson_attempts", "lessonid = :lessonid AND userid = :userid", $params,
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"retry, timeseen")) {
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echo $OUTPUT->box_start();
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$table = new html_table();
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$table->head = array (get_string("attemptheader", "lesson"), get_string("numberofpagesviewedheader", "lesson"),
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get_string("numberofcorrectanswersheader", "lesson"), get_string("time"));
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$table->width = "100%";
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$table->align = array ("center", "center", "center", "center");
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$table->size = array ("*", "*", "*", "*");
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$table->cellpadding = 2;
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$table->cellspacing = 0;
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$retry = 0;
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$npages = 0;
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$ncorrect = 0;
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foreach ($attempts as $attempt) {
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if ($attempt->retry == $retry) {
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$npages++;
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if ($attempt->correct) {
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$ncorrect++;
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}
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$timeseen = $attempt->timeseen;
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} else {
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$table->data[] = array($retry + 1, $npages, $ncorrect, userdate($timeseen));
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$retry++;
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$npages = 1;
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if ($attempt->correct) {
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$ncorrect = 1;
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} else {
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$ncorrect = 0;
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}
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}
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}
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if ($npages) {
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$table->data[] = array($retry + 1, $npages, $ncorrect, userdate($timeseen));
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}
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echo html_writer::table($table);
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echo $OUTPUT->box_end();
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}
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return true;
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}
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/**
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* Prints lesson summaries on MyMoodle Page
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*
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* Prints lesson name, due date and attempt information on
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* lessons that have a deadline that has not already passed
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* and it is available for taking.
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*
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* @global object
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* @global stdClass
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* @global object
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* @uses CONTEXT_MODULE
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* @param array $courses An array of course objects to get lesson instances from
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* @param array $htmlarray Store overview output array( course ID => 'lesson' => HTML output )
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* @return void
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*/
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function lesson_print_overview($courses, &$htmlarray) {
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global $USER, $CFG, $DB, $OUTPUT;
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if (!$lessons = get_all_instances_in_courses('lesson', $courses)) {
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return;
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}
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// Get all of the current users attempts on all lessons.
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$params = array($USER->id);
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$sql = 'SELECT lessonid, userid, count(userid) as attempts
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FROM {lesson_grades}
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WHERE userid = ?
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GROUP BY lessonid, userid';
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$allattempts = $DB->get_records_sql($sql, $params);
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$completedattempts = array();
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foreach ($allattempts as $myattempt) {
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$completedattempts[$myattempt->lessonid] = $myattempt->attempts;
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}
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// Get the current course ID.
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$listoflessons = array();
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foreach ($lessons as $lesson) {
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$listoflessons[] = $lesson->id;
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}
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// Get the last page viewed by the current user for every lesson in this course.
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list($insql, $inparams) = $DB->get_in_or_equal($listoflessons, SQL_PARAMS_NAMED);
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$dbparams = array_merge($inparams, array('userid' => $USER->id));
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// Get the lesson attempts for the user that have the maximum 'timeseen' value.
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$select = "SELECT l.id, l.timeseen, l.lessonid, l.userid, l.retry, l.pageid, l.answerid as nextpageid, p.qtype ";
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$from = "FROM {lesson_attempts} l
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JOIN (
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SELECT idselect.lessonid, idselect.userid, MAX(idselect.id) AS id
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FROM {lesson_attempts} idselect
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JOIN (
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SELECT lessonid, userid, MAX(timeseen) AS timeseen
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FROM {lesson_attempts}
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WHERE userid = :userid
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AND lessonid $insql
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GROUP BY userid, lessonid
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) timeselect
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ON timeselect.timeseen = idselect.timeseen
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AND timeselect.userid = idselect.userid
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AND timeselect.lessonid = idselect.lessonid
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GROUP BY idselect.userid, idselect.lessonid
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) aid
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ON l.id = aid.id
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JOIN {lesson_pages} p
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ON l.pageid = p.id ";
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$lastattempts = $DB->get_records_sql($select . $from, $dbparams);
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// Now, get the lesson branches for the user that have the maximum 'timeseen' value.
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$select = "SELECT l.id, l.timeseen, l.lessonid, l.userid, l.retry, l.pageid, l.nextpageid, p.qtype ";
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$from = str_replace('{lesson_attempts}', '{lesson_branch}', $from);
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$lastbranches = $DB->get_records_sql($select . $from, $dbparams);
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$lastviewed = array();
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foreach ($lastattempts as $lastattempt) {
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$lastviewed[$lastattempt->lessonid] = $lastattempt;
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}
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// Go through the branch times and record the 'timeseen' value if it doesn't exist
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// for the lesson, or replace it if it exceeds the current recorded time.
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foreach ($lastbranches as $lastbranch) {
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if (!isset($lastviewed[$lastbranch->lessonid])) {
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$lastviewed[$lastbranch->lessonid] = $lastbranch;
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} else if ($lastviewed[$lastbranch->lessonid]->timeseen < $lastbranch->timeseen) {
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$lastviewed[$lastbranch->lessonid] = $lastbranch;
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}
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}
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// Since we have lessons in this course, now include the constants we need.
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require_once($CFG->dirroot . '/mod/lesson/locallib.php');
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$now = time();
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foreach ($lessons as $lesson) {
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|
if ($lesson->deadline != 0 // The lesson has a deadline
|
|
and $lesson->deadline >= $now // And it is before the deadline has been met
|
|
and ($lesson->available == 0 or $lesson->available <= $now)) { // And the lesson is available
|
|
|
|
// Visibility.
|
|
$class = (!$lesson->visible) ? 'dimmed' : '';
|
|
|
|
// Context.
|
|
$context = context_module::instance($lesson->coursemodule);
|
|
|
|
// Link to activity.
|
|
$url = new moodle_url('/mod/lesson/view.php', array('id' => $lesson->coursemodule));
|
|
$url = html_writer::link($url, format_string($lesson->name, true, array('context' => $context)), array('class' => $class));
|
|
$str = $OUTPUT->box(get_string('lessonname', 'lesson', $url), 'name');
|
|
|
|
// Deadline.
|
|
$str .= $OUTPUT->box(get_string('lessoncloseson', 'lesson', userdate($lesson->deadline)), 'info');
|
|
|
|
// Attempt information.
|
|
if (has_capability('mod/lesson:manage', $context)) {
|
|
// This is a teacher, Get the Number of user attempts.
|
|
$attempts = $DB->count_records('lesson_grades', array('lessonid' => $lesson->id));
|
|
$str .= $OUTPUT->box(get_string('xattempts', 'lesson', $attempts), 'info');
|
|
$str = $OUTPUT->box($str, 'lesson overview');
|
|
} else {
|
|
// This is a student, See if the user has at least started the lesson.
|
|
if (isset($lastviewed[$lesson->id]->timeseen)) {
|
|
// See if the user has finished this attempt.
|
|
if (isset($completedattempts[$lesson->id]) &&
|
|
($completedattempts[$lesson->id] == ($lastviewed[$lesson->id]->retry + 1))) {
|
|
// Are additional attempts allowed?
|
|
if ($lesson->retake) {
|
|
// User can retake the lesson.
|
|
$str .= $OUTPUT->box(get_string('additionalattemptsremaining', 'lesson'), 'info');
|
|
$str = $OUTPUT->box($str, 'lesson overview');
|
|
} else {
|
|
// User has completed the lesson and no retakes are allowed.
|
|
$str = '';
|
|
}
|
|
|
|
} else {
|
|
// The last attempt was not finished or the lesson does not contain questions.
|
|
// See if the last page viewed was a branchtable.
|
|
require_once($CFG->dirroot . '/mod/lesson/pagetypes/branchtable.php');
|
|
if ($lastviewed[$lesson->id]->qtype == LESSON_PAGE_BRANCHTABLE) {
|
|
// See if the next pageid is the end of lesson.
|
|
if ($lastviewed[$lesson->id]->nextpageid == LESSON_EOL) {
|
|
// The last page viewed was the End of Lesson.
|
|
if ($lesson->retake) {
|
|
// User can retake the lesson.
|
|
$str .= $OUTPUT->box(get_string('additionalattemptsremaining', 'lesson'), 'info');
|
|
$str = $OUTPUT->box($str, 'lesson overview');
|
|
} else {
|
|
// User has completed the lesson and no retakes are allowed.
|
|
$str = '';
|
|
}
|
|
|
|
} else {
|
|
// The last page viewed was NOT the end of lesson.
|
|
$str .= $OUTPUT->box(get_string('notyetcompleted', 'lesson'), 'info');
|
|
$str = $OUTPUT->box($str, 'lesson overview');
|
|
}
|
|
|
|
} else {
|
|
// Last page was a question page, so the attempt is not completed yet.
|
|
$str .= $OUTPUT->box(get_string('notyetcompleted', 'lesson'), 'info');
|
|
$str = $OUTPUT->box($str, 'lesson overview');
|
|
}
|
|
}
|
|
|
|
} else {
|
|
// User has not yet started this lesson.
|
|
$str .= $OUTPUT->box(get_string('nolessonattempts', 'lesson'), 'info');
|
|
$str = $OUTPUT->box($str, 'lesson overview');
|
|
}
|
|
}
|
|
if (!empty($str)) {
|
|
if (empty($htmlarray[$lesson->course]['lesson'])) {
|
|
$htmlarray[$lesson->course]['lesson'] = $str;
|
|
} else {
|
|
$htmlarray[$lesson->course]['lesson'] .= $str;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Function to be run periodically according to the moodle cron
|
|
* This function searches for things that need to be done, such
|
|
* as sending out mail, toggling flags etc ...
|
|
* @global stdClass
|
|
* @return bool true
|
|
*/
|
|
function lesson_cron () {
|
|
global $CFG;
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Return grade for given user or all users.
|
|
*
|
|
* @global stdClass
|
|
* @global object
|
|
* @param int $lessonid id of lesson
|
|
* @param int $userid optional user id, 0 means all users
|
|
* @return array array of grades, false if none
|
|
*/
|
|
function lesson_get_user_grades($lesson, $userid=0) {
|
|
global $CFG, $DB;
|
|
|
|
$params = array("lessonid" => $lesson->id,"lessonid2" => $lesson->id);
|
|
|
|
if (!empty($userid)) {
|
|
$params["userid"] = $userid;
|
|
$params["userid2"] = $userid;
|
|
$user = "AND u.id = :userid";
|
|
$fuser = "AND uu.id = :userid2";
|
|
}
|
|
else {
|
|
$user="";
|
|
$fuser="";
|
|
}
|
|
|
|
if ($lesson->retake) {
|
|
if ($lesson->usemaxgrade) {
|
|
$sql = "SELECT u.id, u.id AS userid, MAX(g.grade) AS rawgrade
|
|
FROM {user} u, {lesson_grades} g
|
|
WHERE u.id = g.userid AND g.lessonid = :lessonid
|
|
$user
|
|
GROUP BY u.id";
|
|
} else {
|
|
$sql = "SELECT u.id, u.id AS userid, AVG(g.grade) AS rawgrade
|
|
FROM {user} u, {lesson_grades} g
|
|
WHERE u.id = g.userid AND g.lessonid = :lessonid
|
|
$user
|
|
GROUP BY u.id";
|
|
}
|
|
unset($params['lessonid2']);
|
|
unset($params['userid2']);
|
|
} else {
|
|
// use only first attempts (with lowest id in lesson_grades table)
|
|
$firstonly = "SELECT uu.id AS userid, MIN(gg.id) AS firstcompleted
|
|
FROM {user} uu, {lesson_grades} gg
|
|
WHERE uu.id = gg.userid AND gg.lessonid = :lessonid2
|
|
$fuser
|
|
GROUP BY uu.id";
|
|
|
|
$sql = "SELECT u.id, u.id AS userid, g.grade AS rawgrade
|
|
FROM {user} u, {lesson_grades} g, ($firstonly) f
|
|
WHERE u.id = g.userid AND g.lessonid = :lessonid
|
|
AND g.id = f.firstcompleted AND g.userid=f.userid
|
|
$user";
|
|
}
|
|
|
|
return $DB->get_records_sql($sql, $params);
|
|
}
|
|
|
|
/**
|
|
* Update grades in central gradebook
|
|
*
|
|
* @category grade
|
|
* @param object $lesson
|
|
* @param int $userid specific user only, 0 means all
|
|
* @param bool $nullifnone
|
|
*/
|
|
function lesson_update_grades($lesson, $userid=0, $nullifnone=true) {
|
|
global $CFG, $DB;
|
|
require_once($CFG->libdir.'/gradelib.php');
|
|
|
|
if ($lesson->grade == 0 || $lesson->practice) {
|
|
lesson_grade_item_update($lesson);
|
|
|
|
} else if ($grades = lesson_get_user_grades($lesson, $userid)) {
|
|
lesson_grade_item_update($lesson, $grades);
|
|
|
|
} else if ($userid and $nullifnone) {
|
|
$grade = new stdClass();
|
|
$grade->userid = $userid;
|
|
$grade->rawgrade = null;
|
|
lesson_grade_item_update($lesson, $grade);
|
|
|
|
} else {
|
|
lesson_grade_item_update($lesson);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Create grade item for given lesson
|
|
*
|
|
* @category grade
|
|
* @uses GRADE_TYPE_VALUE
|
|
* @uses GRADE_TYPE_NONE
|
|
* @param object $lesson object with extra cmidnumber
|
|
* @param array|object $grades optional array/object of grade(s); 'reset' means reset grades in gradebook
|
|
* @return int 0 if ok, error code otherwise
|
|
*/
|
|
function lesson_grade_item_update($lesson, $grades=null) {
|
|
global $CFG;
|
|
if (!function_exists('grade_update')) { //workaround for buggy PHP versions
|
|
require_once($CFG->libdir.'/gradelib.php');
|
|
}
|
|
|
|
if (array_key_exists('cmidnumber', $lesson)) { //it may not be always present
|
|
$params = array('itemname'=>$lesson->name, 'idnumber'=>$lesson->cmidnumber);
|
|
} else {
|
|
$params = array('itemname'=>$lesson->name);
|
|
}
|
|
|
|
if (!$lesson->practice and $lesson->grade > 0) {
|
|
$params['gradetype'] = GRADE_TYPE_VALUE;
|
|
$params['grademax'] = $lesson->grade;
|
|
$params['grademin'] = 0;
|
|
} else if (!$lesson->practice and $lesson->grade < 0) {
|
|
$params['gradetype'] = GRADE_TYPE_SCALE;
|
|
$params['scaleid'] = -$lesson->grade;
|
|
|
|
// Make sure current grade fetched correctly from $grades
|
|
$currentgrade = null;
|
|
if (!empty($grades)) {
|
|
if (is_array($grades)) {
|
|
$currentgrade = reset($grades);
|
|
} else {
|
|
$currentgrade = $grades;
|
|
}
|
|
}
|
|
|
|
// When converting a score to a scale, use scale's grade maximum to calculate it.
|
|
if (!empty($currentgrade) && $currentgrade->rawgrade !== null) {
|
|
$grade = grade_get_grades($lesson->course, 'mod', 'lesson', $lesson->id, $currentgrade->userid);
|
|
$params['grademax'] = reset($grade->items)->grademax;
|
|
}
|
|
} else {
|
|
$params['gradetype'] = GRADE_TYPE_NONE;
|
|
}
|
|
|
|
if ($grades === 'reset') {
|
|
$params['reset'] = true;
|
|
$grades = null;
|
|
} else if (!empty($grades)) {
|
|
// Need to calculate raw grade (Note: $grades has many forms)
|
|
if (is_object($grades)) {
|
|
$grades = array($grades->userid => $grades);
|
|
} else if (array_key_exists('userid', $grades)) {
|
|
$grades = array($grades['userid'] => $grades);
|
|
}
|
|
foreach ($grades as $key => $grade) {
|
|
if (!is_array($grade)) {
|
|
$grades[$key] = $grade = (array) $grade;
|
|
}
|
|
//check raw grade isnt null otherwise we erroneously insert a grade of 0
|
|
if ($grade['rawgrade'] !== null) {
|
|
$grades[$key]['rawgrade'] = ($grade['rawgrade'] * $params['grademax'] / 100);
|
|
} else {
|
|
//setting rawgrade to null just in case user is deleting a grade
|
|
$grades[$key]['rawgrade'] = null;
|
|
}
|
|
}
|
|
}
|
|
|
|
return grade_update('mod/lesson', $lesson->course, 'mod', 'lesson', $lesson->id, 0, $grades, $params);
|
|
}
|
|
|
|
/**
|
|
* List the actions that correspond to a view of this module.
|
|
* This is used by the participation report.
|
|
*
|
|
* Note: This is not used by new logging system. Event with
|
|
* crud = 'r' and edulevel = LEVEL_PARTICIPATING will
|
|
* be considered as view action.
|
|
*
|
|
* @return array
|
|
*/
|
|
function lesson_get_view_actions() {
|
|
return array('view','view all');
|
|
}
|
|
|
|
/**
|
|
* List the actions that correspond to a post of this module.
|
|
* This is used by the participation report.
|
|
*
|
|
* Note: This is not used by new logging system. Event with
|
|
* crud = ('c' || 'u' || 'd') and edulevel = LEVEL_PARTICIPATING
|
|
* will be considered as post action.
|
|
*
|
|
* @return array
|
|
*/
|
|
function lesson_get_post_actions() {
|
|
return array('end','start');
|
|
}
|
|
|
|
/**
|
|
* Runs any processes that must run before
|
|
* a lesson insert/update
|
|
*
|
|
* @global object
|
|
* @param object $lesson Lesson form data
|
|
* @return void
|
|
**/
|
|
function lesson_process_pre_save(&$lesson) {
|
|
global $DB;
|
|
|
|
$lesson->timemodified = time();
|
|
|
|
if (empty($lesson->timelimit)) {
|
|
$lesson->timelimit = 0;
|
|
}
|
|
if (empty($lesson->timespent) or !is_numeric($lesson->timespent) or $lesson->timespent < 0) {
|
|
$lesson->timespent = 0;
|
|
}
|
|
if (!isset($lesson->completed)) {
|
|
$lesson->completed = 0;
|
|
}
|
|
if (empty($lesson->gradebetterthan) or !is_numeric($lesson->gradebetterthan) or $lesson->gradebetterthan < 0) {
|
|
$lesson->gradebetterthan = 0;
|
|
} else if ($lesson->gradebetterthan > 100) {
|
|
$lesson->gradebetterthan = 100;
|
|
}
|
|
|
|
if (empty($lesson->width)) {
|
|
$lesson->width = 640;
|
|
}
|
|
if (empty($lesson->height)) {
|
|
$lesson->height = 480;
|
|
}
|
|
if (empty($lesson->bgcolor)) {
|
|
$lesson->bgcolor = '#FFFFFF';
|
|
}
|
|
|
|
// Conditions for dependency
|
|
$conditions = new stdClass;
|
|
$conditions->timespent = $lesson->timespent;
|
|
$conditions->completed = $lesson->completed;
|
|
$conditions->gradebetterthan = $lesson->gradebetterthan;
|
|
$lesson->conditions = serialize($conditions);
|
|
unset($lesson->timespent);
|
|
unset($lesson->completed);
|
|
unset($lesson->gradebetterthan);
|
|
|
|
if (empty($lesson->password)) {
|
|
unset($lesson->password);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Runs any processes that must be run
|
|
* after a lesson insert/update
|
|
*
|
|
* @global object
|
|
* @param object $lesson Lesson form data
|
|
* @return void
|
|
**/
|
|
function lesson_process_post_save(&$lesson) {
|
|
// Update the events relating to this lesson.
|
|
lesson_update_events($lesson);
|
|
}
|
|
|
|
|
|
/**
|
|
* Implementation of the function for printing the form elements that control
|
|
* whether the course reset functionality affects the lesson.
|
|
*
|
|
* @param $mform form passed by reference
|
|
*/
|
|
function lesson_reset_course_form_definition(&$mform) {
|
|
$mform->addElement('header', 'lessonheader', get_string('modulenameplural', 'lesson'));
|
|
$mform->addElement('advcheckbox', 'reset_lesson', get_string('deleteallattempts','lesson'));
|
|
$mform->addElement('advcheckbox', 'reset_lesson_user_overrides',
|
|
get_string('removealluseroverrides', 'lesson'));
|
|
$mform->addElement('advcheckbox', 'reset_lesson_group_overrides',
|
|
get_string('removeallgroupoverrides', 'lesson'));
|
|
}
|
|
|
|
/**
|
|
* Course reset form defaults.
|
|
* @param object $course
|
|
* @return array
|
|
*/
|
|
function lesson_reset_course_form_defaults($course) {
|
|
return array('reset_lesson' => 1,
|
|
'reset_lesson_group_overrides' => 1,
|
|
'reset_lesson_user_overrides' => 1);
|
|
}
|
|
|
|
/**
|
|
* Removes all grades from gradebook
|
|
*
|
|
* @global stdClass
|
|
* @global object
|
|
* @param int $courseid
|
|
* @param string optional type
|
|
*/
|
|
function lesson_reset_gradebook($courseid, $type='') {
|
|
global $CFG, $DB;
|
|
|
|
$sql = "SELECT l.*, cm.idnumber as cmidnumber, l.course as courseid
|
|
FROM {lesson} l, {course_modules} cm, {modules} m
|
|
WHERE m.name='lesson' AND m.id=cm.module AND cm.instance=l.id AND l.course=:course";
|
|
$params = array ("course" => $courseid);
|
|
if ($lessons = $DB->get_records_sql($sql,$params)) {
|
|
foreach ($lessons as $lesson) {
|
|
lesson_grade_item_update($lesson, 'reset');
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Actual implementation of the reset course functionality, delete all the
|
|
* lesson attempts for course $data->courseid.
|
|
*
|
|
* @global stdClass
|
|
* @global object
|
|
* @param object $data the data submitted from the reset course.
|
|
* @return array status array
|
|
*/
|
|
function lesson_reset_userdata($data) {
|
|
global $CFG, $DB;
|
|
|
|
$componentstr = get_string('modulenameplural', 'lesson');
|
|
$status = array();
|
|
|
|
if (!empty($data->reset_lesson)) {
|
|
$lessonssql = "SELECT l.id
|
|
FROM {lesson} l
|
|
WHERE l.course=:course";
|
|
|
|
$params = array ("course" => $data->courseid);
|
|
$lessons = $DB->get_records_sql($lessonssql, $params);
|
|
|
|
// Get rid of attempts files.
|
|
$fs = get_file_storage();
|
|
if ($lessons) {
|
|
foreach ($lessons as $lessonid => $unused) {
|
|
if (!$cm = get_coursemodule_from_instance('lesson', $lessonid)) {
|
|
continue;
|
|
}
|
|
$context = context_module::instance($cm->id);
|
|
$fs->delete_area_files($context->id, 'mod_lesson', 'essay_responses');
|
|
}
|
|
}
|
|
|
|
$DB->delete_records_select('lesson_timer', "lessonid IN ($lessonssql)", $params);
|
|
$DB->delete_records_select('lesson_grades', "lessonid IN ($lessonssql)", $params);
|
|
$DB->delete_records_select('lesson_attempts', "lessonid IN ($lessonssql)", $params);
|
|
$DB->delete_records_select('lesson_branch', "lessonid IN ($lessonssql)", $params);
|
|
|
|
// remove all grades from gradebook
|
|
if (empty($data->reset_gradebook_grades)) {
|
|
lesson_reset_gradebook($data->courseid);
|
|
}
|
|
|
|
$status[] = array('component'=>$componentstr, 'item'=>get_string('deleteallattempts', 'lesson'), 'error'=>false);
|
|
}
|
|
|
|
// Remove user overrides.
|
|
if (!empty($data->reset_lesson_user_overrides)) {
|
|
$DB->delete_records_select('lesson_overrides',
|
|
'lessonid IN (SELECT id FROM {lesson} WHERE course = ?) AND userid IS NOT NULL', array($data->courseid));
|
|
$status[] = array(
|
|
'component' => $componentstr,
|
|
'item' => get_string('useroverridesdeleted', 'lesson'),
|
|
'error' => false);
|
|
}
|
|
// Remove group overrides.
|
|
if (!empty($data->reset_lesson_group_overrides)) {
|
|
$DB->delete_records_select('lesson_overrides',
|
|
'lessonid IN (SELECT id FROM {lesson} WHERE course = ?) AND groupid IS NOT NULL', array($data->courseid));
|
|
$status[] = array(
|
|
'component' => $componentstr,
|
|
'item' => get_string('groupoverridesdeleted', 'lesson'),
|
|
'error' => false);
|
|
}
|
|
/// updating dates - shift may be negative too
|
|
if ($data->timeshift) {
|
|
$DB->execute("UPDATE {lesson_overrides}
|
|
SET available = available + ?
|
|
WHERE lessonid IN (SELECT id FROM {lesson} WHERE course = ?)
|
|
AND available <> 0", array($data->timeshift, $data->courseid));
|
|
$DB->execute("UPDATE {lesson_overrides}
|
|
SET deadline = deadline + ?
|
|
WHERE lessonid IN (SELECT id FROM {lesson} WHERE course = ?)
|
|
AND deadline <> 0", array($data->timeshift, $data->courseid));
|
|
|
|
shift_course_mod_dates('lesson', array('available', 'deadline'), $data->timeshift, $data->courseid);
|
|
$status[] = array('component'=>$componentstr, 'item'=>get_string('datechanged'), 'error'=>false);
|
|
}
|
|
|
|
return $status;
|
|
}
|
|
|
|
/**
|
|
* Returns all other caps used in module
|
|
* @return array
|
|
*/
|
|
function lesson_get_extra_capabilities() {
|
|
return array('moodle/site:accessallgroups');
|
|
}
|
|
|
|
/**
|
|
* @uses FEATURE_GROUPS
|
|
* @uses FEATURE_GROUPINGS
|
|
* @uses FEATURE_MOD_INTRO
|
|
* @uses FEATURE_COMPLETION_TRACKS_VIEWS
|
|
* @uses FEATURE_GRADE_HAS_GRADE
|
|
* @uses FEATURE_GRADE_OUTCOMES
|
|
* @param string $feature FEATURE_xx constant for requested feature
|
|
* @return mixed True if module supports feature, false if not, null if doesn't know
|
|
*/
|
|
function lesson_supports($feature) {
|
|
switch($feature) {
|
|
case FEATURE_GROUPS:
|
|
return true;
|
|
case FEATURE_GROUPINGS:
|
|
return true;
|
|
case FEATURE_MOD_INTRO:
|
|
return true;
|
|
case FEATURE_COMPLETION_TRACKS_VIEWS:
|
|
return true;
|
|
case FEATURE_GRADE_HAS_GRADE:
|
|
return true;
|
|
case FEATURE_COMPLETION_HAS_RULES:
|
|
return true;
|
|
case FEATURE_GRADE_OUTCOMES:
|
|
return true;
|
|
case FEATURE_BACKUP_MOODLE2:
|
|
return true;
|
|
case FEATURE_SHOW_DESCRIPTION:
|
|
return true;
|
|
default:
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Obtains the automatic completion state for this lesson based on any conditions
|
|
* in lesson settings.
|
|
*
|
|
* @param object $course Course
|
|
* @param object $cm course-module
|
|
* @param int $userid User ID
|
|
* @param bool $type Type of comparison (or/and; can be used as return value if no conditions)
|
|
* @return bool True if completed, false if not, $type if conditions not set.
|
|
*/
|
|
function lesson_get_completion_state($course, $cm, $userid, $type) {
|
|
global $CFG, $DB;
|
|
|
|
// Get lesson details.
|
|
$lesson = $DB->get_record('lesson', array('id' => $cm->instance), '*',
|
|
MUST_EXIST);
|
|
|
|
$result = $type; // Default return value.
|
|
// If completion option is enabled, evaluate it and return true/false.
|
|
if ($lesson->completionendreached) {
|
|
$value = $DB->record_exists('lesson_timer', array(
|
|
'lessonid' => $lesson->id, 'userid' => $userid, 'completed' => 1));
|
|
if ($type == COMPLETION_AND) {
|
|
$result = $result && $value;
|
|
} else {
|
|
$result = $result || $value;
|
|
}
|
|
}
|
|
if ($lesson->completiontimespent != 0) {
|
|
$duration = $DB->get_field_sql(
|
|
"SELECT SUM(lessontime - starttime)
|
|
FROM {lesson_timer}
|
|
WHERE lessonid = :lessonid
|
|
AND userid = :userid",
|
|
array('userid' => $userid, 'lessonid' => $lesson->id));
|
|
if (!$duration) {
|
|
$duration = 0;
|
|
}
|
|
if ($type == COMPLETION_AND) {
|
|
$result = $result && ($lesson->completiontimespent < $duration);
|
|
} else {
|
|
$result = $result || ($lesson->completiontimespent < $duration);
|
|
}
|
|
}
|
|
return $result;
|
|
}
|
|
/**
|
|
* This function extends the settings navigation block for the site.
|
|
*
|
|
* It is safe to rely on PAGE here as we will only ever be within the module
|
|
* context when this is called
|
|
*
|
|
* @param settings_navigation $settings
|
|
* @param navigation_node $lessonnode
|
|
*/
|
|
function lesson_extend_settings_navigation($settings, $lessonnode) {
|
|
global $PAGE, $DB;
|
|
|
|
// We want to add these new nodes after the Edit settings node, and before the
|
|
// Locally assigned roles node. Of course, both of those are controlled by capabilities.
|
|
$keys = $lessonnode->get_children_key_list();
|
|
$beforekey = null;
|
|
$i = array_search('modedit', $keys);
|
|
if ($i === false and array_key_exists(0, $keys)) {
|
|
$beforekey = $keys[0];
|
|
} else if (array_key_exists($i + 1, $keys)) {
|
|
$beforekey = $keys[$i + 1];
|
|
}
|
|
|
|
if (has_capability('mod/lesson:manageoverrides', $PAGE->cm->context)) {
|
|
$url = new moodle_url('/mod/lesson/overrides.php', array('cmid' => $PAGE->cm->id));
|
|
$node = navigation_node::create(get_string('groupoverrides', 'lesson'),
|
|
new moodle_url($url, array('mode' => 'group')),
|
|
navigation_node::TYPE_SETTING, null, 'mod_lesson_groupoverrides');
|
|
$lessonnode->add_node($node, $beforekey);
|
|
|
|
$node = navigation_node::create(get_string('useroverrides', 'lesson'),
|
|
new moodle_url($url, array('mode' => 'user')),
|
|
navigation_node::TYPE_SETTING, null, 'mod_lesson_useroverrides');
|
|
$lessonnode->add_node($node, $beforekey);
|
|
}
|
|
|
|
if (has_capability('mod/lesson:edit', $PAGE->cm->context)) {
|
|
$url = new moodle_url('/mod/lesson/view.php', array('id' => $PAGE->cm->id));
|
|
$lessonnode->add(get_string('preview', 'lesson'), $url);
|
|
$editnode = $lessonnode->add(get_string('edit', 'lesson'));
|
|
$url = new moodle_url('/mod/lesson/edit.php', array('id' => $PAGE->cm->id, 'mode' => 'collapsed'));
|
|
$editnode->add(get_string('collapsed', 'lesson'), $url);
|
|
$url = new moodle_url('/mod/lesson/edit.php', array('id' => $PAGE->cm->id, 'mode' => 'full'));
|
|
$editnode->add(get_string('full', 'lesson'), $url);
|
|
}
|
|
|
|
if (has_capability('mod/lesson:viewreports', $PAGE->cm->context)) {
|
|
$reportsnode = $lessonnode->add(get_string('reports', 'lesson'));
|
|
$url = new moodle_url('/mod/lesson/report.php', array('id'=>$PAGE->cm->id, 'action'=>'reportoverview'));
|
|
$reportsnode->add(get_string('overview', 'lesson'), $url);
|
|
$url = new moodle_url('/mod/lesson/report.php', array('id'=>$PAGE->cm->id, 'action'=>'reportdetail'));
|
|
$reportsnode->add(get_string('detailedstats', 'lesson'), $url);
|
|
}
|
|
|
|
if (has_capability('mod/lesson:grade', $PAGE->cm->context)) {
|
|
$url = new moodle_url('/mod/lesson/essay.php', array('id'=>$PAGE->cm->id));
|
|
$lessonnode->add(get_string('manualgrading', 'lesson'), $url);
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* Get list of available import or export formats
|
|
*
|
|
* Copied and modified from lib/questionlib.php
|
|
*
|
|
* @param string $type 'import' if import list, otherwise export list assumed
|
|
* @return array sorted list of import/export formats available
|
|
*/
|
|
function lesson_get_import_export_formats($type) {
|
|
global $CFG;
|
|
$fileformats = core_component::get_plugin_list("qformat");
|
|
|
|
$fileformatname=array();
|
|
foreach ($fileformats as $fileformat=>$fdir) {
|
|
$format_file = "$fdir/format.php";
|
|
if (file_exists($format_file) ) {
|
|
require_once($format_file);
|
|
} else {
|
|
continue;
|
|
}
|
|
$classname = "qformat_$fileformat";
|
|
$format_class = new $classname();
|
|
if ($type=='import') {
|
|
$provided = $format_class->provide_import();
|
|
} else {
|
|
$provided = $format_class->provide_export();
|
|
}
|
|
if ($provided) {
|
|
$fileformatnames[$fileformat] = get_string('pluginname', 'qformat_'.$fileformat);
|
|
}
|
|
}
|
|
natcasesort($fileformatnames);
|
|
|
|
return $fileformatnames;
|
|
}
|
|
|
|
/**
|
|
* Serves the lesson attachments. Implements needed access control ;-)
|
|
*
|
|
* @package mod_lesson
|
|
* @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
|
|
* @param array $options additional options affecting the file serving
|
|
* @return bool false if file not found, does not return if found - justsend the file
|
|
*/
|
|
function lesson_pluginfile($course, $cm, $context, $filearea, $args, $forcedownload, array $options=array()) {
|
|
global $CFG, $DB;
|
|
|
|
if ($context->contextlevel != CONTEXT_MODULE) {
|
|
return false;
|
|
}
|
|
|
|
$fileareas = lesson_get_file_areas();
|
|
if (!array_key_exists($filearea, $fileareas)) {
|
|
return false;
|
|
}
|
|
|
|
if (!$lesson = $DB->get_record('lesson', array('id'=>$cm->instance))) {
|
|
return false;
|
|
}
|
|
|
|
require_course_login($course, true, $cm);
|
|
|
|
if ($filearea === 'page_contents') {
|
|
$pageid = (int)array_shift($args);
|
|
if (!$page = $DB->get_record('lesson_pages', array('id'=>$pageid))) {
|
|
return false;
|
|
}
|
|
$fullpath = "/$context->id/mod_lesson/$filearea/$pageid/".implode('/', $args);
|
|
|
|
} else if ($filearea === 'page_answers' || $filearea === 'page_responses') {
|
|
$itemid = (int)array_shift($args);
|
|
if (!$pageanswers = $DB->get_record('lesson_answers', array('id' => $itemid))) {
|
|
return false;
|
|
}
|
|
$fullpath = "/$context->id/mod_lesson/$filearea/$itemid/".implode('/', $args);
|
|
|
|
} else if ($filearea === 'essay_responses') {
|
|
$itemid = (int)array_shift($args);
|
|
if (!$attempt = $DB->get_record('lesson_attempts', array('id' => $itemid))) {
|
|
return false;
|
|
}
|
|
$fullpath = "/$context->id/mod_lesson/$filearea/$itemid/".implode('/', $args);
|
|
|
|
} else if ($filearea === 'mediafile') {
|
|
if (count($args) > 1) {
|
|
// Remove the itemid when it appears to be part of the arguments. If there is only one argument
|
|
// then it is surely the file name. The itemid is sometimes used to prevent browser caching.
|
|
array_shift($args);
|
|
}
|
|
$fullpath = "/$context->id/mod_lesson/$filearea/0/".implode('/', $args);
|
|
|
|
} else {
|
|
return false;
|
|
}
|
|
|
|
$fs = get_file_storage();
|
|
if (!$file = $fs->get_file_by_hash(sha1($fullpath)) or $file->is_directory()) {
|
|
return false;
|
|
}
|
|
|
|
// finally send the file
|
|
send_stored_file($file, 0, 0, $forcedownload, $options); // download MUST be forced - security!
|
|
}
|
|
|
|
/**
|
|
* Returns an array of file areas
|
|
*
|
|
* @package mod_lesson
|
|
* @category files
|
|
* @return array a list of available file areas
|
|
*/
|
|
function lesson_get_file_areas() {
|
|
$areas = array();
|
|
$areas['page_contents'] = get_string('pagecontents', 'mod_lesson');
|
|
$areas['mediafile'] = get_string('mediafile', 'mod_lesson');
|
|
$areas['page_answers'] = get_string('pageanswers', 'mod_lesson');
|
|
$areas['page_responses'] = get_string('pageresponses', 'mod_lesson');
|
|
$areas['essay_responses'] = get_string('essayresponses', 'mod_lesson');
|
|
return $areas;
|
|
}
|
|
|
|
/**
|
|
* Returns a file_info_stored object for the file being requested here
|
|
*
|
|
* @package mod_lesson
|
|
* @category files
|
|
* @global stdClass $CFG
|
|
* @param file_browse $browser file browser instance
|
|
* @param array $areas file areas
|
|
* @param stdClass $course course object
|
|
* @param stdClass $cm course module object
|
|
* @param stdClass $context context object
|
|
* @param string $filearea file area
|
|
* @param int $itemid item ID
|
|
* @param string $filepath file path
|
|
* @param string $filename file name
|
|
* @return file_info_stored
|
|
*/
|
|
function lesson_get_file_info($browser, $areas, $course, $cm, $context, $filearea, $itemid, $filepath, $filename) {
|
|
global $CFG, $DB;
|
|
|
|
if (!has_capability('moodle/course:managefiles', $context)) {
|
|
// No peaking here for students!
|
|
return null;
|
|
}
|
|
|
|
// Mediafile area does not have sub directories, so let's select the default itemid to prevent
|
|
// the user from selecting a directory to access the mediafile content.
|
|
if ($filearea == 'mediafile' && is_null($itemid)) {
|
|
$itemid = 0;
|
|
}
|
|
|
|
if (is_null($itemid)) {
|
|
return new mod_lesson_file_info($browser, $course, $cm, $context, $areas, $filearea);
|
|
}
|
|
|
|
$fs = get_file_storage();
|
|
$filepath = is_null($filepath) ? '/' : $filepath;
|
|
$filename = is_null($filename) ? '.' : $filename;
|
|
if (!$storedfile = $fs->get_file($context->id, 'mod_lesson', $filearea, $itemid, $filepath, $filename)) {
|
|
return null;
|
|
}
|
|
|
|
$itemname = $filearea;
|
|
if ($filearea == 'page_contents') {
|
|
$itemname = $DB->get_field('lesson_pages', 'title', array('lessonid' => $cm->instance, 'id' => $itemid));
|
|
$itemname = format_string($itemname, true, array('context' => $context));
|
|
} else {
|
|
$areas = lesson_get_file_areas();
|
|
if (isset($areas[$filearea])) {
|
|
$itemname = $areas[$filearea];
|
|
}
|
|
}
|
|
|
|
$urlbase = $CFG->wwwroot . '/pluginfile.php';
|
|
return new file_info_stored($browser, $context, $storedfile, $urlbase, $itemname, $itemid, true, true, false);
|
|
}
|
|
|
|
|
|
/**
|
|
* Return a list of page types
|
|
* @param string $pagetype current page type
|
|
* @param stdClass $parentcontext Block's parent context
|
|
* @param stdClass $currentcontext Current context of block
|
|
*/
|
|
function lesson_page_type_list($pagetype, $parentcontext, $currentcontext) {
|
|
$module_pagetype = array(
|
|
'mod-lesson-*'=>get_string('page-mod-lesson-x', 'lesson'),
|
|
'mod-lesson-view'=>get_string('page-mod-lesson-view', 'lesson'),
|
|
'mod-lesson-edit'=>get_string('page-mod-lesson-edit', 'lesson'));
|
|
return $module_pagetype;
|
|
}
|
|
|
|
/**
|
|
* Update the lesson activity to include any file
|
|
* that was uploaded, or if there is none, set the
|
|
* mediafile field to blank.
|
|
*
|
|
* @param int $lessonid the lesson id
|
|
* @param stdClass $context the context
|
|
* @param int $draftitemid the draft item
|
|
*/
|
|
function lesson_update_media_file($lessonid, $context, $draftitemid) {
|
|
global $DB;
|
|
|
|
// Set the filestorage object.
|
|
$fs = get_file_storage();
|
|
// Save the file if it exists that is currently in the draft area.
|
|
file_save_draft_area_files($draftitemid, $context->id, 'mod_lesson', 'mediafile', 0);
|
|
// Get the file if it exists.
|
|
$files = $fs->get_area_files($context->id, 'mod_lesson', 'mediafile', 0, 'itemid, filepath, filename', false);
|
|
// Check that there is a file to process.
|
|
if (count($files) == 1) {
|
|
// Get the first (and only) file.
|
|
$file = reset($files);
|
|
// Set the mediafile column in the lessons table.
|
|
$DB->set_field('lesson', 'mediafile', '/' . $file->get_filename(), array('id' => $lessonid));
|
|
} else {
|
|
// Set the mediafile column in the lessons table.
|
|
$DB->set_field('lesson', 'mediafile', '', array('id' => $lessonid));
|
|
}
|
|
}
|