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<?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/>.
/**
* Event observers for workshopallocation_scheduled.
*
* @package workshopallocation_scheduled
* @copyright 2013 Adrian Greeve <adrian@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace workshopallocation_scheduled;
defined('MOODLE_INTERNAL') || die();
/**
* Class for workshopallocation_scheduled observers.
*
* @package workshopallocation_scheduled
* @copyright 2013 Adrian Greeve <adrian@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class observer {
/**
* Triggered when the '\mod_workshop\event\course_module_viewed' event is triggered.
*
* This does the same job as {@link workshopallocation_scheduled_cron()} but for the
* single workshop. The idea is that we do not need to wait for cron to execute.
* Displaying the workshop main view.php can trigger the scheduled allocation, too.
*
* @param \mod_workshop\event\course_module_viewed $event
* @return bool
*/
public static function workshop_viewed($event) {
global $DB, $CFG;
require_once($CFG->dirroot . '/mod/workshop/locallib.php');
$workshop = $event->get_record_snapshot('workshop', $event->objectid);
$course = $event->get_record_snapshot('course', $event->courseid);
$cm = $event->get_record_snapshot('course_modules', $event->contextinstanceid);
$workshop = new \workshop($workshop, $cm, $course);
$now = time();
// Non-expensive check to see if the scheduled allocation can even happen.
if ($workshop->phase == \workshop::PHASE_SUBMISSION and $workshop->submissionend > 0 and $workshop->submissionend < $now) {
// Make sure the scheduled allocation has been configured for this workshop, that it has not
// been executed yet and that the passed workshop record is still valid.
$sql = "SELECT a.id
FROM {workshopallocation_scheduled} a
JOIN {workshop} w ON a.workshopid = w.id
WHERE w.id = :workshopid
AND a.enabled = 1
AND w.phase = :phase
AND w.submissionend > 0
AND w.submissionend < :now
AND (a.timeallocated IS NULL OR a.timeallocated < w.submissionend)";
$params = array('workshopid' => $workshop->id, 'phase' => \workshop::PHASE_SUBMISSION, 'now' => $now);
if ($DB->record_exists_sql($sql, $params)) {
// Allocate submissions for assessments.
$allocator = $workshop->allocator_instance('scheduled');
$result = $allocator->execute();
// Todo inform the teachers about the results.
}
}
return true;
}
}