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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/>.
/**
* A scheduled task.
*
* @package core
* @copyright 2013 onwards Martin Dougiamas http://dougiamas.com
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace core\task;
/**
* Simple task to delete old messaging records.
*/
class messaging_cleanup_task extends scheduled_task {
/**
* Get a descriptive name for this task (shown to admins).
*
* @return string
*/
public function get_name() {
return get_string('taskmessagingcleanup', 'admin');
}
/**
* Do the job.
* Throw exceptions on errors (the job will be retried).
*/
public function execute() {
global $CFG, $DB;
$timenow = time();
// Cleanup read and unread notifications.
if (!empty($CFG->messagingdeleteallnotificationsdelay)) {
$notificationdeletetime = $timenow - $CFG->messagingdeleteallnotificationsdelay;
$params = array('notificationdeletetime' => $notificationdeletetime);
$DB->delete_records_select('notifications', 'timecreated < :notificationdeletetime', $params);
}
// Cleanup read notifications.
if (!empty($CFG->messagingdeletereadnotificationsdelay)) {
$notificationdeletetime = $timenow - $CFG->messagingdeletereadnotificationsdelay;
$params = array('notificationdeletetime' => $notificationdeletetime);
$DB->delete_records_select('notifications', 'timeread < :notificationdeletetime', $params);
}
}
}