添加优惠券功能，实现价格计算

web/models/coupon.gen.go

@@ -0,0 +1,34 @@
+// Code generated by gorm.io/gen. DO NOT EDIT.
+// Code generated by gorm.io/gen. DO NOT EDIT.
+// Code generated by gorm.io/gen. DO NOT EDIT.
+
+package models
+
+import (
+	"platform/web/common"
+	"time"
+
+	"gorm.io/gorm"
+)
+
+const TableNameCoupon = "coupon"
+
+// Coupon mapped from table <coupon>
+type Coupon struct {
+	ExpireAt  time.Time            `gorm:"column:expire_at" json:"expire_at"`
+	CreatedAt common.LocalDateTime `gorm:"column:created_at;default:CURRENT_TIMESTAMP" json:"created_at"`
+	UpdatedAt common.LocalDateTime `gorm:"column:updated_at;default:CURRENT_TIMESTAMP" json:"updated_at"`
+	DeletedAt gorm.DeletedAt       `gorm:"column:deleted_at" json:"deleted_at"`
+	ID        int32                `gorm:"column:id;primaryKey;autoIncrement:true" json:"id"`
+	UserID    int32                `gorm:"column:user_id" json:"user_id"`
+	Status    int32                `gorm:"column:status;not null" json:"status"`
+	Code      string               `gorm:"column:code;not null" json:"code"`
+	Remark    string               `gorm:"column:remark" json:"remark"`
+	Amount    float64              `gorm:"column:amount;not null" json:"amount"`
+	MinAmount float64              `gorm:"column:min_amount;not null" json:"min_amount"`
+}
+
+// TableName Coupon's table name
+func (*Coupon) TableName() string {
+	return TableNameCoupon
+}