model change

 public function updateOrderChange($order_id, $data) {

        $sql = "UPDATE `" . DB_PREFIX . "order` SET   telephone = '" . $this->db->escape($data['telephone']) . "', payment_address_1 = '" . ($data['payment_address_1']).  "', shipping_city = '" . ($data['shipping_city']).  "', shipping_zone = '" . ($data['shipping_zone']) . "', shipping_firstname = '" . ($data['shipping_firstname']) . "' WHERE order_id = '" . (int)$data['order_id'] . "'";
         print_r($sql); die;
        $this->db->query($sql);

    }
    public function getOrderZone() {
        $query = $this->db->query("SELECT  * FROM " .DB_PREFIX."zone");
       //print_r($query); die();
        return $query->rows;
    }
    public function getCodeNovaposhtaCities($shipping_zone){
        $query = $this->db->query("SELECT  * FROM `" .DB_PREFIX."novaposhta_cities`");
        //print_r($query);die;
        return $query->rows;
    }