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Developer Documentation

See Release Notes

  • Bug fixes for general core bugs in 3.10.x will end 8 November 2021 (12 months).
  • Bug fixes for security issues in 3.10.x will end 9 May 2022 (18 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Course completion status for a particular user/course
 *
 * @package core_completion
 * @category completion
 * @copyright 2009 Catalyst IT Ltd
 * @author Aaron Barnes <aaronb@catalyst.net.nz>
 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

defined('MOODLE_INTERNAL') || die();
require_once($CFG->dirroot.'/completion/data_object.php');

/**
 * Course completion status for a particular user/course
 *
 * @package core_completion
 * @category completion
 * @copyright 2009 Catalyst IT Ltd
 * @author Aaron Barnes <aaronb@catalyst.net.nz>
 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class completion_completion extends data_object {

    /* @var string $table Database table name that stores completion information */
    public $table = 'course_completions';

    /* @var array $required_fields Array of required table fields, must start with 'id'. */
    public $required_fields = array('id', 'userid', 'course',
        'timeenrolled', 'timestarted', 'timecompleted', 'reaggregate');

    /* @var int $userid User ID */
    public $userid;

    /* @var int $course Course ID */
    public $course;

    /* @var int Time of course enrolment {@link completion_completion::mark_enrolled()} */
    public $timeenrolled;

    /**
     * Time the user started their course completion {@link completion_completion::mark_inprogress()}
     * @var int
     */
    public $timestarted;

    /* @var int Timestamp of course completion {@link completion_completion::mark_complete()} */
    public $timecompleted;

    /* @var int Flag to trigger cron aggregation (timestamp) */
    public $reaggregate;


    /**
     * Finds and returns a data_object instance based on params.
     *
     * @param array $params associative arrays varname = >value
     * @return data_object instance of data_object or false if none found.
     */
    public static function fetch($params) {
        $cache = cache::make('core', 'coursecompletion');

        $key = $params['userid'] . '_' . $params['course'];
        if ($hit = $cache->get($key)) {
            return $hit['value'];
        }

        $tocache = self::fetch_helper('course_completions', __CLASS__, $params);
        $cache->set($key, ['value' => $tocache]);
        return $tocache;
    }

    /**
     * Return status of this completion
     *
     * @return bool
     */
    public function is_complete() {
        return (bool) $this->timecompleted;
    }

    /**
     * Mark this user as started (or enrolled) in this course
     *
     * If the user is already marked as started, no change will occur
     *
     * @param integer $timeenrolled Time enrolled (optional)
> * @return int|null id of completion record on successful update.
*/ public function mark_enrolled($timeenrolled = null) { if ($this->timeenrolled === null) { if ($timeenrolled === null) { $timeenrolled = time(); } $this->timeenrolled = $timeenrolled; } return $this->_save(); } /** * Mark this user as inprogress in this course * * If the user is already marked as inprogress, the time will not be changed * * @param integer $timestarted Time started (optional)
> * @return int|null id of completion record on successful update.
*/ public function mark_inprogress($timestarted = null) { $timenow = time(); // Set reaggregate flag $this->reaggregate = $timenow; if (!$this->timestarted) { if (!$timestarted) { $timestarted = $timenow; } $this->timestarted = $timestarted; } return $this->_save(); } /** * Mark this user complete in this course * * This generally happens when the required completion criteria * in the course are complete. * * @param integer $timecomplete Time completed (optional)
< * @return void
> * @return int|null id of completion record on successful update.
*/ public function mark_complete($timecomplete = null) { global $USER; // Never change a completion time. if ($this->timecompleted) {
< return;
> return null;
} // Use current time if nothing supplied. if (!$timecomplete) { $timecomplete = time(); } // Set time complete. $this->timecompleted = $timecomplete;
<
// Save record. if ($result = $this->_save()) { $data = $this->get_record_data(); \core\event\course_completed::create_from_completion($data)->trigger(); } // Notify user. $course = get_course($data->course); $messagesubject = get_string('coursecompleted', 'completion'); $a = [ 'coursename' => get_course_display_name_for_list($course), 'courselink' => (string) new moodle_url('/course/view.php', array('id' => $course->id)), ]; $messagebody = get_string('coursecompletedmessage', 'completion', $a); $messageplaintext = html_to_text($messagebody); $eventdata = new \core\message\message(); $eventdata->courseid = $course->id; $eventdata->component = 'moodle'; $eventdata->name = 'coursecompleted'; $eventdata->userfrom = core_user::get_noreply_user(); $eventdata->userto = $data->userid; $eventdata->notification = 1; $eventdata->subject = $messagesubject; $eventdata->fullmessage = $messageplaintext; $eventdata->fullmessageformat = FORMAT_HTML; $eventdata->fullmessagehtml = $messagebody; $eventdata->smallmessage = $messageplaintext; if ($courseimage = \core_course\external\course_summary_exporter::get_course_image($course)) { $eventdata->customdata = [ 'notificationpictureurl' => $courseimage, ]; } message_send($eventdata); return $result; } /** * Save course completion status * * This method creates a course_completions record if none exists * @access private
< * @return bool
> * @return int|null id of completion record on successful update.
*/ private function _save() { if ($this->timeenrolled === null) { $this->timeenrolled = 0; }
< $result = false;
// Save record
< if ($this->id) { < $result = $this->update();
> if (isset($this->id)) { > $success = $this->update();
} else { // Make sure reaggregate field is not null if (!$this->reaggregate) { $this->reaggregate = 0; } // Make sure timestarted is not null if (!$this->timestarted) { $this->timestarted = 0; }
< $result = $this->insert();
> $success = $this->insert();
}
< if ($result) {
> if ($success) {
// Update the cached record. $cache = cache::make('core', 'coursecompletion'); $data = $this->get_record_data(); $key = $data->userid . '_' . $data->course; $cache->set($key, ['value' => $data]);
> return $this->id;
}
< return $result;
> return null;
} }