public static function getRoomGroupById($id) { if (!empty($id)) { $roomGroups = GameRoomGroups::findById(DBUtils::getConnection(), $id); if (count($roomGroups) > 0) { $roomGroup = $roomGroups[0]; unset($roomGroups); if (!empty($roomGroup)) { $roomGroupId = $roomGroup->roomGroupId; if (!empty($roomGroupId)) { return $roomGroup; } } } } return null; }