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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/>.
/**
* Notification viewed event.
*
* @package core
* @copyright 2018 Mark Nelson <markn@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace core\event;
defined('MOODLE_INTERNAL') || die();
/**
* Notification viewed event class.
*
* @package core
* @copyright 2018 Mark Nelson <markn@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class notification_viewed extends base {
/**
* Create event using ids.
*
* @param int $userfromid
* @param int $usertoid
* @param int $notificationid
* @return notification_viewed
*/
public static function create_from_ids($userfromid, $usertoid, $notificationid) {
// We may be sending a notification from the 'noreply' address, which means we are not actually sending a
// notification from a valid user. In this case, we will set the userid to 0.
// Check if the userid is valid.
if (!\core_user::is_real_user($userfromid)) {
$userfromid = 0;
}
// Get the context for the user who received the notification.
$context = \context_user::instance($usertoid, IGNORE_MISSING);
// If the user no longer exists the context value will be false, in this case use the system context.
if ($context === false) {
$context = \context_system::instance();
}
$event = self::create(
[
'objectid' => $notificationid,
'userid' => $usertoid, // Using the user who read the notification as they are the ones performing the action.
'context' => $context,
'relateduserid' => $userfromid
]
);
return $event;
}
/**
* Init method.
*/
protected function init() {
$this->data['objecttable'] = 'notifications';
$this->data['crud'] = 'u';
$this->data['edulevel'] = self::LEVEL_OTHER;
}
/**
* Returns localised general event name.
*
* @return string
*/
public static function get_name() {
return get_string('eventnotificationviewed', 'message');
}
/**
* Returns relevant URL.
*
* @return \moodle_url
*/
public function get_url() {
return new \moodle_url('/message/output/popup/notifications.php', array('notificationid' => $this->objectid));
}
/**
* Returns description of what happened.
*
* @return string
*/
public function get_description() {
return "The user with id '$this->userid' read a notification from the user with id '$this->relateduserid'.";
}
/**
* Custom validation.
*
* @throws \coding_exception
* @return void
*/
protected function validate_data() {
parent::validate_data();
if (!isset($this->relateduserid)) {
throw new \coding_exception('The \'relateduserid\' must be set.');
}
}
public static function get_objectid_mapping() {
return array('db' => 'notifications', 'restore' => base::NOT_MAPPED);
}
}