go_mqtt/models/Order.go

package models

import (
	"fmt"
	"github.com/google/uuid"
	"go_mqtt/mydb"
)

type Order struct {
	ID          uint
	OrderNumber string
	TotalAmount float64

	//User User `gorm:"foreignKey:UserID"` // 一对一关联，通过 UserID 外键关联到 User 结构体
}

func init() {
	fmt.Println("Order init()")
	mydb.DB.AutoMigrate(&Order{})
}

// TableName 会将 Product 的表名重写为 `product`
func (Order) TableName() string {
	return "order"
}

func SaveOrder() {
	uuid := uuid.New()
	// 创建记录
	order := Order{OrderNumber: uuid.String(), TotalAmount: 1999.9}
	result := mydb.DB.Create(&order)
	if result.Error != nil {
		fmt.Println("Failed to create order:", result.Error)
	} else {
		fmt.Println("order created successfully!")
	}
}