支付功能动态化扩展

web/models/product_sku_user.go

@@ -0,0 +1,21 @@
+package models
+
+import (
+	"time"
+
+	"github.com/shopspring/decimal"
+)
+
+// ProductSkuUser 用户产品SKU表
+type ProductSkuUser struct {
+	ID           int32            `json:"id" gorm:"column:id;primaryKey"`
+	UserID       int32            `json:"user_id" gorm:"column:user_id"`               // 用户ID
+	ProductSkuID int32            `json:"product_sku_id" gorm:"column:product_sku_id"` // 产品SKU ID
+	Price        *decimal.Decimal `json:"price,omitempty" gorm:"column:price"`         // 定价（覆盖SKU定价）
+	Discount     *float32         `json:"discount,omitempty" gorm:"column:discount"`   // 折扣（覆盖SKU折扣）
+	CreatedAt    time.Time        `json:"created_at" gorm:"column:created_at"`
+	UpdatedAt    time.Time        `json:"updated_at" gorm:"column:updated_at"`
+
+	User       *User       `json:"user,omitempty" gorm:"foreignKey:UserID"`
+	ProductSku *ProductSku `json:"product_sku,omitempty" gorm:"foreignKey:ProductSkuID"`
+}