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<?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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* A scheduled task.
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*
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* @package core
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* @copyright 2013 onwards Martin Dougiamas http://dougiamas.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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namespace core\task;
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/**
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* Simple task to delete old messaging records.
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*/
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class messaging_cleanup_task extends scheduled_task {
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/**
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* Get a descriptive name for this task (shown to admins).
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*
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* @return string
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*/
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public function get_name() {
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return get_string('taskmessagingcleanup', 'admin');
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}
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/**
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* Do the job. Each message processor also gets the chance to perform it's own cleanup.
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* Throw exceptions on errors (the job will be retried).
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*/
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public function execute() {
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global $CFG, $DB;
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$timenow = time();
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$processors = get_message_processors(true);
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// Cleanup read and unread notifications.
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if (!empty($CFG->messagingdeleteallnotificationsdelay)) {
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$notificationdeletetime = $timenow - $CFG->messagingdeleteallnotificationsdelay;
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/** @var \message_output $processor */
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foreach (array_column($processors, 'object') as $processor) {
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$processor->cleanup_all_notifications($notificationdeletetime);
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}
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$params = array('notificationdeletetime' => $notificationdeletetime);
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$DB->delete_records_select('notifications', 'timecreated < :notificationdeletetime', $params);
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}
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// Cleanup read notifications.
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if (!empty($CFG->messagingdeletereadnotificationsdelay)) {
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$notificationdeletetime = $timenow - $CFG->messagingdeletereadnotificationsdelay;
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/** @var \message_output $processor */
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foreach (array_column($processors, 'object') as $processor) {
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$processor->cleanup_read_notifications($notificationdeletetime);
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}
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$params = array('notificationdeletetime' => $notificationdeletetime);
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$DB->delete_records_select('notifications', 'timeread < :notificationdeletetime', $params);
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}
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}
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}
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