支付功能动态化扩展

web/models/product_sku.go

@@ -0,0 +1,19 @@
+package models
+
+import (
+	"platform/web/core"
+
+	"github.com/shopspring/decimal"
+)
+
+// ProductSku 产品SKU表
+type ProductSku struct {
+	core.Model
+	ProductID int32           `json:"product_id" gorm:"column:product_id"` // 产品ID
+	Code      string          `json:"code" gorm:"column:code"`             // SSKU 代码：格式为 key=value,key=value,...，其中，key:value 是 SKU 的属性，多个属性用逗号分隔
+	Name      string          `json:"name" gorm:"column:name"`             // SKU 可读名称
+	Price     decimal.Decimal `json:"price" gorm:"column:price"`           // 定价
+	Discount  float32         `json:"discount" gorm:"column:discount"`     // 折扣，0 - 1 的小数，表示 xx 折
+
+	Product *Product `json:"product,omitempty" gorm:"foreignKey:ProductID"`
+}

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"`
+}

web/models/resource.go

@@ -32,3 +32,14 @@ const (
 	ResourceModeTime  ResourceMode = 1 // 包时
 	ResourceModeQuota ResourceMode = 2 // 包量
 )
+
+func (m ResourceMode) Code() string {
+	switch m {
+	case ResourceModeTime:
+		return "time"
+	case ResourceModeQuota:
+		return "quota"
+	default:
+		return "unknown"
+	}
+}