friendica/src/Worker/ExpireConversations.php

<?php
/**
 * @copyright Copyright (C) 2010-2021, the Friendica project
 *
 * @license GNU AGPL version 3 or any later version
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 */

namespace Friendica\Worker;

use Friendica\Database\DBA;
use Friendica\DI;

class ExpireConversations
{
	/**
	 * Delete old conversation entries
	 */
	public static function execute()
	{
		$days = intval(DI::config()->get('system', 'dbclean_expire_conversation', 90));
		if (empty($days)) {
			return;
		}

		DBA::delete('conversation', ["`received` < UTC_TIMESTAMP() - INTERVAL ? DAY", $days]);
	}
}