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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/>.
/**
* Post read receipt collection class.
*
* @package mod_forum
* @copyright 2019 Ryan Wyllie <ryan@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace mod_forum\local\entities;
defined('MOODLE_INTERNAL') || die();
use mod_forum\local\entities\post as post_entity;
use stdClass;
/**
* Post read receipt collection class.
*
* Contains the list of read receipts for posts.
*
* @copyright 2019 Ryan Wyllie <ryan@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class post_read_receipt_collection {
/** @var stdClass[] $receiptsbypostid Receipt records indexed by post id */
private $receiptsbypostid = [];
/**
* Constructor.
*
* @param array $records The list of post read receipt records.
*/
public function __construct(array $records) {
foreach ($records as $record) {
$postid = $record->postid;
if (isset($this->receiptsbypostid[$postid])) {
$this->receiptsbypostid[$postid][] = $record;
} else {
$this->receiptsbypostid[$postid] = [$record];
}
}
}
/**
* Check whether a user has read a post.
*
* @param stdClass $user The user to check
* @param post_entity $post The post to check
* @return bool
*/
public function has_user_read_post(stdClass $user, post_entity $post) : bool {
global $CFG;
$isoldpost = ($post->get_time_modified() < (time() - ($CFG->forum_oldpostdays * 24 * 3600)));
if ($isoldpost) {
return true;
}
$receipts = isset($this->receiptsbypostid[$post->get_id()]) ? $this->receiptsbypostid[$post->get_id()] : [];
foreach ($receipts as $receipt) {
if ($receipt->userid == $user->id) {
return true;
}
}
return false;
}
}