completion_check.php

<?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/>.

/**
 * Checks a users completion for a specific activity.
 *
 * @package mod_tincanlaunch
 * @copyright  2013 Andrew Downes
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

require_once('../../config.php');
require_once('header.php');
require_login();

$completion = new completion_info($course);

// Determine if the activity has a completion expiration set.
if ($tincanlaunch->tincanexpiry > 0) {
    $possibleresult = COMPLETION_UNKNOWN;
} else {
    $possibleresult = COMPLETION_COMPLETE;
}

if ($completion->is_enabled($cm) && $tincanlaunch->tincanverbid) {
    // Query to get the cached completion state (if available).
    $oldstate = $completion->get_data($cm, false, 0);

    // If cached state is completed, we can skip the check.
    if ($oldstate->completionstate != COMPLETION_COMPLETE) {
        // Check to see if the activity has been completed.
        $completion->update_state($cm, $possibleresult);

        // Query the cache again to determine if a change in completion state has occurred.
        $newstate = $completion->get_data($cm, false, 0);

        if ($oldstate->completionstate !== $newstate->completionstate) {

            // Trigger Activity completed event.
            $event = \mod_tincanlaunch\event\activity_completed::create(array(
                'objectid' => $tincanlaunch->id,
                'context' => $context,
            ));
            $event->add_record_snapshot('course_modules', $cm);
            $event->add_record_snapshot('tincanlaunch', $tincanlaunch);
            $event->trigger();
        }
    }


}