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