CTTopMenuItem::getMaxPosition PHP Метод

    public static function getMaxPosition($id_shop)
    {
        $sql = new DbQuery();
        $sql->select('MAX(position)');
        $sql->from('ct_top_menu_item_shop');
        $sql->where('id_shop = ' . (int) $id_shop);
        $position = Db::getInstance()->getValue($sql);
        return Tools::strlen($position) ? (int) $position : -1;
    }