rpn.supertraderfx-cn/rpnIn.go

package main

import (
	"database/sql"
	"log"
	"strconv"

	"github.com/go-sql-driver/mysql"
)

type RpnIn struct {
	Id           int64
	Leanwork     int64
	Order_id     string
	Order_time   string
	Order_amount string
	Deal_id      string
	Deal_time    string
	Pay_amount   string
	Pay_result   string
	Signature    string
	Ts           mysql.NullTime
}

//get given RpnIn record based on ID
func getRpnInById(id int64) (ret RpnIn, err error) {
	if err = db.conn(Config); err != nil {
		return
	}
	defer db.close()

	q := "SELECT * FROM rpnIn WHERE id = ? "
	err = db.h.QueryRow(q, id).Scan(
		&ret.Id, &ret.Leanwork, &ret.Order_id,
		&ret.Order_time, &ret.Order_amount, &ret.Deal_id,
		&ret.Deal_time, &ret.Pay_amount, &ret.Pay_result,
		&ret.Signature, &ret.Ts)
	if err != nil {
		if err == sql.ErrNoRows {
			log.Println("trying to retrieve rpnIn(" + strconv.FormatInt(id, 10) + ") but not found")
		} else {
			log.Println("Error retrieving rpnIn(" + strconv.FormatInt(id, 10) + ") encountered : " + err.Error())
		}
	}
	return
}

//add to database
func (m *RpnIn) add() (ret RpnIn, err error) {
	if err = db.conn(Config); err != nil {
		return
	}
	defer db.close()

	q := `"INSERT INTO rpnIn(
			leanwork, order_id, order_time, order_amount, deal_id,
			deal_time, pay_amount, pay_result, signature) 
		VALUES(?,?,?,?,?,?,?,?,?)
		`
	insForm, err := db.h.Prepare(q)
	if err != nil {
		log.Printf("Failed to prepare SQL statment for insert")
		return
	}
	res, err := insForm.Exec(
		m.Leanwork, m.Order_id, m.Order_time, m.Order_amount, m.Deal_id,
		m.Deal_time, m.Pay_amount, m.Pay_result, m.Signature)
	if err != nil {
		log.Printf("Error inserting rpnIn with orderNo =%s \n", m.Order_id)
		return
	}
	id, err := res.LastInsertId()
	if err != nil {
		log.Printf("Cannot retrieve lastInsertId for orderID %s", m.Order_id)
		return
	}

	return getRpnInById(id)
}

func (m *RpnIn) signature() string {
	s := "order_id=" + m.Order_id
	s += "|order_time=" + m.Order_time
	s += "|order_amount=" + m.Order_amount
	s += "|deal_id=" + m.Deal_id
	s += "|deal_time=" + m.Deal_time
	s += "|pay_amount=" + m.Pay_amount
	s += "|pay_result=" + m.Pay_result

	return s
}