public function processOrderAction($parent_column_name = '') {
        if ($parent_column_name) {
            // If have pid field, means we should move in the same parent
            SQL::orderCat($this->getId(), $this->getDbTableName(), $this->getPid(), $parent_column_name, $_GET['direct']);
        } else {
            // Or usual move
            SQL::order($this->getId(), $this->getDbTableName(), $_GET['direct']);
        }

        // Ajax request only with steps
        if (IS_AJAX_REQUEST) {
            SQL::orderMoveByStep($this->getId(), $this->getDbTableName(), $_GET['direct'], $_GET['step']);
            die(1);
        }

        back();
    }