information-system/application/models/Order_model.php

<?php

class Order_model extends CI_Model {

    public function __construct() {
        $this->hunter = $this->load->database('HT', TRUE);
    }

    public function get_order_by_id($order_id) {
        $order_query = $this->hunter->query("select COLI_Name, COLI_OrderDetailText, COLI_OrderStartDate
            from [syn123].tourmanager.dbo.ConfirmLineInfoTmp
            where
                COLI_ID = ?", $order_id);
        $order_array = $order_query->row_array();
        return $order_array;
    }

    public function get_order_by_id_in_ht($order_id) {
        $order_query = $this->hunter->query("select COLI_Name, COLI_OrderDetailText, COLI_OrderStartDate from ConfirmLineInfo where COLI_AddCode IN
            (select cast(coli_sn as varchar(20))
            from ConfirmLineInfoTmp
            where
              COLI_ID = ?)", $order_id);
        $order_array = $order_query->row_array();
        return $order_array;
    }
}