Golang Connectp示例

示例#1

文件： stock_dao.go 项目： elivoa/gotapestry

// private
func setProductCSValue(productId int, color string, size string,
	field string, stock int, price float64) {

	conn := db.Connectp()
	defer db.CloseConn(conn)

	_sql := fmt.Sprintf("insert into product_sku (product_id, color, size, %v) values (?,?,?,?) on duplicate key update %v = ?", field, field)

	stmt, err := conn.Prepare(_sql)
	defer db.CloseStmt(stmt) // the safe way to close.
	if db.Err(err) {
		panic(err.Error())
	}

	if field == "stock" {
		_, err := stmt.Exec(productId, color, size, stock, stock)
		if err != nil {
			debug.Error(err)
		}
	} else if field == "price" {
		_, err := stmt.Exec(productId, color, size, price, stock)
		if err != nil {
			debug.Error(err)
		}
	}
}

示例#2

文件： stock_dao.go 项目： elivoa/gotapestry

func GetProductStocks(productId int64, color, size string) (int, error) {
	var err error
	conn := db.Connectp()
	defer db.CloseConn(conn)

	// 1. query
	var queryString = "select `stock` from `product_sku` where product_id = ? and color=? and size=? "

	// 2. prepare
	stmt, err := conn.Prepare(queryString)
	if err != nil {
		panic(err.Error())
	}
	defer stmt.Close()

	// 3. query
	rows, err := stmt.Query(productId, color, size)
	if err != nil {
		panic(err.Error())
	}
	defer rows.Close()

	// 4. process results.
	var stock int = 0
	if rows.Next() {
		rows.Scan(&stock)
	}
	return stock, nil
}

示例#3

文件： product_property_dao.go 项目： elivoa/gotapestry

// Delete Product Property by product, property name and value
func DeleteProductProperty(productId int, propertyName string, property string) {
	conn := db.Connectp()
	defer db.CloseConn(conn)

	stmt, err := conn.Prepare("delete from product_property where " +
		"product_id = ? and property_name = ? and value = ? limit 1")
	if db.Err(err) {
		panic(err.Error())
	}
	defer stmt.Close()

	_, err = stmt.Exec(productId, propertyName, property)
	if db.Err(err) {
		panic(err.Error())
	}
}

示例#4

文件： stock_dao.go 项目： elivoa/gotapestry

func ClearProductStock(productId int) error {
	conn := db.Connectp()
	defer db.CloseConn(conn)

	stmt, err := conn.Prepare("delete from product_sku where product_id = ?")
	if db.Err(err) {
		return err
	}
	defer stmt.Close()

	_, err = stmt.Exec(productId)
	if db.Err(err) {
		return err
	}
	return nil
}

示例#5

文件： product_property_dao.go 项目： elivoa/gotapestry

// Set customer private price, panic if any error occurs.
func AddProductProperty(productId int, propertyName string, property string) {
	conn := db.Connectp()
	defer db.CloseConn(conn)

	sql := "insert into product_property " +
		"(product_id, property_name, value) values(?,?,?)"

	stmt, err := conn.Prepare(sql)
	if db.Err(err) {
		panic(err.Error())
	}
	defer stmt.Close()

	_, err = stmt.Exec(productId, propertyName, property)
	if db.Err(err) {
		panic(err.Error())
	}
}

示例#6

文件： product_property_dao.go 项目： elivoa/gotapestry

//
// Delete Product Property by product, property name and value
//
func DeleteOneProductProperty(productId int, propertyName string) {
	// fmt.Println("______________________________________________________________")
	// fmt.Println(productId)
	// fmt.Println(propertyName)
	if productId <= 0 {
		panic("Error when DeleteOneProductProperty: productId: " + string(productId))
	}

	conn := db.Connectp()
	defer db.CloseConn(conn)

	stmt, err := conn.Prepare("delete from product_property where " +
		"product_id = ? and property_name = ?")
	if db.Err(err) {
		panic(err.Error())
	}
	defer stmt.Close()
	_, err = stmt.Exec(productId, propertyName)
	if db.Err(err) {
		panic(err.Error())
	}
}

示例#7

文件： customer_price_dao.go 项目： elivoa/gotapestry

/* Set customer private price */
func SetCustomerPrice(personId int, productId int, price float64) error {
	if logdebug {
		log.Printf("[dal] Set customer price for %v on %v, $%v", personId, productId, price)
	}

	conn := db.Connectp()
	defer db.CloseConn(conn)

	// first get price xxx. TODO performance.
	stmt, err := conn.Prepare("insert into customer_special_price " +
		"(person_id, product_id, price, create_time, last_use_time) " +
		"values(?,?,?,?,?)")
	if db.Err(err) {
		return err
	}
	defer stmt.Close()

	_, err = stmt.Exec(personId, productId, price, time.Now(), nil)
	if err != nil {
		return err
	}
	return nil
}

示例#8

文件： stock_dao.go 项目： elivoa/gotapestry

/*_______________________________________________________________________________
  Fill order Lists.
*/
func filter(productId int) *map[string]int {
	var err error
	conn := db.Connectp()
	defer db.CloseConn(conn)

	// 1. query
	var queryString = "select color,size,stock from `product_sku` where product_id = ?"

	// 2. prepare
	stmt, err := conn.Prepare(queryString)
	if err != nil {
		panic(err.Error())
	}
	defer stmt.Close()

	// 3. query
	rows, err := stmt.Query(productId)
	if err != nil {
		panic(err.Error())
	}
	defer rows.Close()

	// 4. process results.
	// big performance issue, maybe. who knows.
	var (
		color  string
		size   string
		stock  int
		stocks = map[string]int{}
	)

	for rows.Next() {
		rows.Scan(&color, &size, &stock)
		stocks[fmt.Sprintf("%v__%v", color, size)] = stock
	}
	return &stocks
}