完善定价与套餐关联表结构

2026-03-24 16:25:21 +08:00
parent c9995ef566
commit 5ffa151f58
28 changed files with 1550 additions and 112 deletions
--- a/cmd/gen/main.go
+++ b/cmd/gen/main.go
@@ -64,6 +64,7 @@ func main() {
 		m.UserRole{},
 		m.Whitelist{},
 		m.Inquiry{},
+		m.ProductDiscount{},
 	)
 	g.Execute()
 }
--- a/scripts/sql/init.sql
+++ b/scripts/sql/init.sql
@@ -228,7 +228,7 @@ create table admin_role (
    name        text not null,
    description text,
    active      bool not null default true,
-    sort        int not null default 0,
+    sort        int  not null default 0,
    created_at  timestamptz default current_timestamp,
    updated_at  timestamptz default current_timestamp,
    deleted_at  timestamptz
@@ -449,8 +449,8 @@ comment on column permission.deleted_at is '删除时间';
 -- link_user_role
 drop table if exists link_user_role cascade;
 create table link_user_role (
-    id      int generated by default as identity primary key,
-    user_id int not null,
+    id           int generated by default as identity primary key,
+    user_id      int not null,
    user_role_id int not null
 );
 create index idx_link_user_role_user_id on link_user_role (user_id);
@@ -465,9 +465,9 @@ comment on column link_user_role.user_role_id is '角色ID';
 -- link_admin_role
 drop table if exists link_admin_role cascade;
 create table link_admin_role (
-    id       int generated by default as identity primary key,
-    admin_id int not null,
-    admin_role_id  int not null
+    id            int generated by default as identity primary key,
+    admin_id      int not null,
+    admin_role_id int not null
 );
 create index idx_link_admin_role_admin_id on link_admin_role (admin_id);
 create index idx_link_admin_role_role_id on link_admin_role (admin_role_id);
@@ -482,7 +482,7 @@ comment on column link_admin_role.admin_role_id is '角色ID';
 drop table if exists link_user_role_permission cascade;
 create table link_user_role_permission (
    id            int generated by default as identity primary key,
-    user_role_id       int not null,
+    user_role_id  int not null,
    permission_id int not null
 );
 create index idx_link_user_role_permission_role_id on link_user_role_permission (user_role_id);
@@ -498,7 +498,7 @@ comment on column link_user_role_permission.permission_id is '权限ID';
 drop table if exists link_admin_role_permission cascade;
 create table link_admin_role_permission (
    id            int generated by default as identity primary key,
-    admin_role_id       int not null,
+    admin_role_id int not null,
    permission_id int not null
 );
 create index idx_link_admin_role_permission_role_id on link_admin_role_permission (admin_role_id);
@@ -720,30 +720,52 @@ comment on column product.created_at is '创建时间';
 comment on column product.updated_at is '更新时间';
 comment on column product.deleted_at is '删除时间';

-- product_sku
-drop table if exists product_sku cascade;
-create table product_sku (
+
+-- product_discount
+drop table if exists product_discount cascade;
+create table product_discount (
    id         int generated by default as identity primary key,
-    product_id int     not null,
-    code       text    not null,
-    name       text    not null,
-    price      decimal not null,
-    discount   float   not null,
+    name       text,
+    discount   int,
    created_at timestamptz default current_timestamp,
    updated_at timestamptz default current_timestamp,
    deleted_at timestamptz
 );
+
+-- product_discount表字段注释
+comment on table product_discount is '产品折扣表';
+comment on column product_discount.id is 'ID';
+comment on column product_discount.name is '折扣名称';
+comment on column product_discount.discount is '折扣，0 - 100 的整数，表示 xx 折';
+comment on column product_discount.created_at is '创建时间';
+comment on column product_discount.updated_at is '更新时间';
+comment on column product_discount.deleted_at is '删除时间';
+
+-- product_sku
+drop table if exists product_sku cascade;
+create table product_sku (
+    id          int generated by default as identity primary key,
+    product_id  int     not null,
+    discount_id int,
+    code        text    not null,
+    name        text    not null,
+    price       decimal not null,
+    created_at  timestamptz default current_timestamp,
+    updated_at  timestamptz default current_timestamp,
+    deleted_at  timestamptz
+);
 create index idx_product_sku_product_id on product_sku (product_id) where deleted_at is null;
+create index idx_product_sku_discount_id on product_sku (discount_id) where deleted_at is null;
 create index idx_product_sku_code on product_sku (code) where deleted_at is null;

 -- product_sku表字段注释
 comment on table product_sku is '产品SKU表';
 comment on column product_sku.id is 'SKU ID';
 comment on column product_sku.product_id is '产品ID';
+comment on column product_sku.discount_id is '折扣ID';
 comment on column product_sku.code is 'SKU 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';
 comment on column product_sku.name is 'SKU 可读名称';
 comment on column product_sku.price is '定价';
-comment on column product_sku.discount is '折扣，0 - 1 的小数，表示 xx 折';
 comment on column product_sku.created_at is '创建时间';
 comment on column product_sku.updated_at is '更新时间';
 comment on column product_sku.deleted_at is '删除时间';
@@ -754,21 +776,20 @@ create table product_sku_user (
    id             int generated by default as identity primary key,
    user_id        int not null,
    product_sku_id int not null,
-    price          decimal,
-    discount       float,
+    discount_id    int,
    created_at     timestamptz default current_timestamp,
    updated_at     timestamptz default current_timestamp
 );
 create index idx_product_sku_user_user_id on product_sku_user (user_id);
 create index idx_product_sku_user_product_sku_id on product_sku_user (product_sku_id);
+create index idx_product_sku_user_discount_id on product_sku_user (discount_id);

 -- product_sku_user表字段注释
 comment on table product_sku_user is '用户产品SKU表';
 comment on column product_sku_user.id is 'ID';
 comment on column product_sku_user.user_id is '用户ID';
 comment on column product_sku_user.product_sku_id is '产品SKU ID';
-comment on column product_sku_user.price is '定价';
-comment on column product_sku_user.discount is '折扣，0 - 1 的小数，表示 xx 折';
+comment on column product_sku_user.discount_id is '折扣ID';
 comment on column product_sku_user.created_at is '创建时间';
 comment on column product_sku_user.updated_at is '更新时间';

@@ -777,9 +798,10 @@ drop table if exists resource cascade;
 create table resource (
    id          int generated by default as identity primary key,
    user_id     int  not null,
-    resource_no text,
-    active      bool not null default true,
+    resource_no text not null,
+    code        text,
    type        int  not null,
+    active      bool not null default true,
    created_at  timestamptz default current_timestamp,
    updated_at  timestamptz default current_timestamp,
    deleted_at  timestamptz
@@ -787,6 +809,7 @@ create table resource (
 create unique index udx_resource_resource_no on resource (resource_no);
 create index idx_resource_user_id on resource (user_id) where deleted_at is null;
 create index idx_resource_created_at on resource (created_at) where deleted_at is null;
+create index idx_resource_code on resource (code) where deleted_at is null;

 -- resource表字段注释
 comment on table resource is '套餐表';
@@ -795,6 +818,7 @@ comment on column resource.user_id is '用户ID';
 comment on column resource.resource_no is '套餐编号';
 comment on column resource.active is '套餐状态';
 comment on column resource.type is '套餐类型：1-短效动态，2-长效动态';
+comment on column resource.code is '产品编码';
 comment on column resource.created_at is '创建时间';
 comment on column resource.updated_at is '更新时间';
 comment on column resource.deleted_at is '删除时间';
@@ -804,6 +828,7 @@ drop table if exists resource_short cascade;
 create table resource_short (
    id          int generated by default as identity primary key,
    resource_id int not null,
+    code        text,
    live        int not null,
    type        int not null,
    quota       int not null,
@@ -813,11 +838,13 @@ create table resource_short (
    last_at     timestamptz
 );
 create index idx_resource_short_resource_id on resource_short (resource_id);
+create index idx_resource_short_code on resource_short (code);

 -- resource_short表字段注释
 comment on table resource_short is '短效动态套餐表';
 comment on column resource_short.id is 'ID';
 comment on column resource_short.resource_id is '套餐ID';
+comment on column resource_short.code is '产品套餐编码';
 comment on column resource_short.live is '可用时长(秒)';
 comment on column resource_short.type is '套餐类型：1-包时，2-包量';
 comment on column resource_short.quota is '每日配额（包时）或总配额（包量）';
@@ -831,6 +858,7 @@ drop table if exists resource_long cascade;
 create table resource_long (
    id          int generated by default as identity primary key,
    resource_id int not null,
+    code        text,
    live        int not null,
    type        int not null,
    quota       int not null,
@@ -840,11 +868,13 @@ create table resource_long (
    last_at     timestamptz
 );
 create index idx_resource_long_resource_id on resource_long (resource_id);
+create index idx_resource_long_code on resource_long (code);

 -- resource_long表字段注释
 comment on table resource_long is '长效动态套餐表';
 comment on column resource_long.id is 'ID';
 comment on column resource_long.resource_id is '套餐ID';
+comment on column resource_long.code is '产品套餐编码';
 comment on column resource_long.live is '可用时长(小时)';
 comment on column resource_long.type is '套餐类型：1-包时，2-包量';
 comment on column resource_long.quota is '每日配额（包时）或总配额（包量）';
@@ -1113,11 +1143,15 @@ alter table coupon
 -- product_sku表外键
 alter table product_sku
    add constraint fk_product_sku_product_id foreign key (product_id) references product (id) on delete cascade;
+alter table product_sku
+    add constraint fk_product_sku_discount_id foreign key (discount_id) references product_discount (id) on delete restrict;

 -- product_sku_user表外键
 alter table product_sku_user
    add constraint fk_product_sku_user_user_id foreign key (user_id) references "user" (id) on delete cascade;
 alter table product_sku_user
    add constraint fk_product_sku_user_product_sku_id foreign key (product_sku_id) references product_sku (id) on delete cascade;
+alter table product_sku_user
+    add constraint fk_product_sku_user_discount_id foreign key (discount_id) references product_discount (id) on delete restrict;

 -- endregion
--- a/web/core/product.go
+++ b/web/core/product.go
@@ -0,0 +1,8 @@
+package core
+
+type ProductCode string
+
+var (
+	ProductShort ProductCode = "short"
+	ProductLong  ProductCode = "long"
+)
--- a/web/core/scopes.go
+++ b/web/core/scopes.go
@@ -1,14 +1,16 @@
 package core

 const (
-	ScopePermissionRead  = string("permission:read")
-	ScopePermissionWrite = string("permission:write")
-	ScopeAdminRoleRead   = string("admin_role:read")
-	ScopeAdminRoleWrite  = string("admin_role:write")
-	ScopeAdminRead       = string("admin:read")
-	ScopeAdminWrite      = string("admin:write")
-	ScopeProductRead     = string("product:read")
-	ScopeProductWrite    = string("product:write")
-	ScopeProductSkuRead  = string("product_sku:read")
-	ScopeProductSkuWrite = string("product_sku:write")
+	ScopePermissionRead       = string("permission:read")
+	ScopePermissionWrite      = string("permission:write")
+	ScopeAdminRoleRead        = string("admin_role:read")
+	ScopeAdminRoleWrite       = string("admin_role:write")
+	ScopeAdminRead            = string("admin:read")
+	ScopeAdminWrite           = string("admin:write")
+	ScopeProductRead          = string("product:read")
+	ScopeProductWrite         = string("product:write")
+	ScopeProductSkuRead       = string("product_sku:read")
+	ScopeProductSkuWrite      = string("product_sku:write")
+	ScopeProductDiscountRead  = string("product_discount:read")
+	ScopeProductDiscountWrite = string("product_discount:write")
 )
--- a/web/handlers/product.go
+++ b/web/handlers/product.go
@@ -158,6 +158,25 @@ func UpdateProductSku(c *fiber.Ctx) error {
 	return nil
 }

+func BatchUpdateProductSkuDiscount(c *fiber.Ctx) error {
+	_, err := auth.GetAuthCtx(c).PermitAdmin(core.ScopeProductSkuWrite)
+	if err != nil {
+		return err
+	}
+
+	var req s.BatchUpdateSkuDiscountData
+	if err := g.Validator.ParseBody(c, &req); err != nil {
+		return err
+	}
+
+	err = s.ProductSku.BatchUpdateDiscount(req)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
 func DeleteProductSku(c *fiber.Ctx) error {
 	_, err := auth.GetAuthCtx(c).PermitAdmin(core.ScopeProductSkuWrite)
 	if err != nil {
--- a/web/handlers/product_discount.go
+++ b/web/handlers/product_discount.go
@@ -0,0 +1,105 @@
+package handlers
+
+import (
+	"platform/web/auth"
+	"platform/web/core"
+	g "platform/web/globals"
+	s "platform/web/services"
+
+	"github.com/gofiber/fiber/v2"
+)
+
+func PageProductDiscountByAdmin(c *fiber.Ctx) error {
+	_, err := auth.GetAuthCtx(c).PermitAdmin(core.ScopeProductDiscountRead)
+	if err != nil {
+		return err
+	}
+
+	var req core.PageReq
+	if err := g.Validator.ParseBody(c, &req); err != nil {
+		return err
+	}
+
+	list, total, err := s.ProductDiscount.Page(&req)
+	if err != nil {
+		return err
+	}
+
+	return c.JSON(core.PageResp{
+		Total: int(total),
+		Page:  req.GetPage(),
+		Size:  req.GetSize(),
+		List:  list,
+	})
+}
+
+func AllProductDiscountsByAdmin(c *fiber.Ctx) error {
+	_, err := auth.GetAuthCtx(c).PermitAdmin(core.ScopeProductDiscountRead)
+	if err != nil {
+		return err
+	}
+
+	list, err := s.ProductDiscount.All()
+	if err != nil {
+		return err
+	}
+
+	return c.JSON(list)
+}
+
+func CreateProductDiscount(c *fiber.Ctx) error {
+	_, err := auth.GetAuthCtx(c).PermitAdmin(core.ScopeProductDiscountWrite)
+	if err != nil {
+		return err
+	}
+
+	var req s.CreateProductDiscountData
+	if err := g.Validator.ParseBody(c, &req); err != nil {
+		return err
+	}
+
+	err = s.ProductDiscount.Create(req)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func UpdateProductDiscount(c *fiber.Ctx) error {
+	_, err := auth.GetAuthCtx(c).PermitAdmin(core.ScopeProductDiscountWrite)
+	if err != nil {
+		return err
+	}
+
+	var req s.UpdateProductDiscountData
+	if err := g.Validator.ParseBody(c, &req); err != nil {
+		return err
+	}
+
+	err = s.ProductDiscount.Update(req)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func DeleteProductDiscount(c *fiber.Ctx) error {
+	_, err := auth.GetAuthCtx(c).PermitAdmin(core.ScopeProductDiscountWrite)
+	if err != nil {
+		return err
+	}
+
+	var req core.IdReq
+	if err := g.Validator.ParseBody(c, &req); err != nil {
+		return err
+	}
+
+	err = s.ProductDiscount.Delete(req.Id)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
--- a/web/handlers/resource.go
+++ b/web/handlers/resource.go
@@ -70,7 +70,7 @@ func PageResourceShort(c *fiber.Ctx) error {
 	}

 	resource, err := q.Resource.Where(do).
-		Joins(q.Resource.Short).
+		Joins(q.Resource.Short, q.ResourceShort.Sku).
 		Order(q.Resource.CreatedAt.Desc()).
 		Offset(req.GetOffset()).
 		Limit(req.GetLimit()).
@@ -615,7 +615,7 @@ func ResourcePrice(c *fiber.Ctx) error {
 	// 计算折扣
 	return c.JSON(ResourcePriceResp{
 		Price:           before.StringFixed(2),
-		Discounted:      sku.Discount,
+		Discounted:      float32(sku.Discount.Discount) / 100,
 		DiscountedPrice: after.StringFixed(2),
 	})
 }
--- a/web/models/product_discount.go
+++ b/web/models/product_discount.go
@@ -0,0 +1,19 @@
+package models
+
+import (
+	"platform/web/core"
+
+	"github.com/shopspring/decimal"
+)
+
+// ProductDiscount 产品折扣表
+type ProductDiscount struct {
+	core.Model
+	Name     string `json:"name" gorm:"column:name"`         // 产品名称
+	Discount int32  `json:"discount" gorm:"column:discount"` // 产品折扣
+}
+
+func (pd ProductDiscount) Decimal() decimal.Decimal {
+	return decimal.NewFromInt32(pd.Discount).
+		Div(decimal.NewFromInt32(100))
+}
--- a/web/models/product_sku.go
+++ b/web/models/product_sku.go
@@ -9,11 +9,12 @@ import (
 // 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
+	ProductID  int32           `json:"product_id" gorm:"column:product_id"`   // 产品ID
+	DiscountId int32           `json:"discount_id" gorm:"column:discount_id"` // 折扣，0 - 1 的小数，表示 xx 折
+	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

-	Product *Product `json:"product,omitempty" gorm:"foreignKey:ProductID"`
+	Product  *Product         `json:"product,omitempty" gorm:"foreignKey:ProductID"`
+	Discount *ProductDiscount `json:"discount,omitempty" gorm:"foreignKey:DiscountId"`
 }
--- a/web/models/product_sku_user.go
+++ b/web/models/product_sku_user.go
@@ -2,20 +2,18 @@ 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"`
+	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
+	DiscountId   int32     `json:"discount_id" gorm:"column:discount_id"`       // 折扣ID
+	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"`
+	User       *User            `json:"user,omitempty" gorm:"foreignKey:UserID"`
+	ProductSku *ProductSku      `json:"product_sku,omitempty" gorm:"foreignKey:ProductSkuID"`
+	Discount   *ProductDiscount `json:"discount,omitempty" gorm:"foreignKey:DiscountId"`
 }
--- a/web/models/resource.go
+++ b/web/models/resource.go
@@ -11,10 +11,12 @@ type Resource struct {
 	ResourceNo *string      `json:"resource_no,omitempty" gorm:"column:resource_no"` // 套餐编号
 	Active     bool         `json:"active" gorm:"column:active"`                     // 套餐状态
 	Type       ResourceType `json:"type" gorm:"column:type"`                         // 套餐类型：1-短效动态，2-长效动态
+	Code       string       `json:"code" gorm:"column:code"`                         // 产品编码

-	User  *User          `json:"user,omitempty" gorm:"foreignKey:UserID"`
-	Short *ResourceShort `json:"short,omitempty" gorm:"foreignKey:ResourceID"`
-	Long  *ResourceLong  `json:"long,omitempty" gorm:"foreignKey:ResourceID"`
+	User    *User          `json:"user,omitempty" gorm:"foreignKey:UserID"`
+	Short   *ResourceShort `json:"short,omitempty" gorm:"foreignKey:ResourceID"`
+	Long    *ResourceLong  `json:"long,omitempty" gorm:"foreignKey:ResourceID"`
+	Product *Product       `json:"product,omitempty" gorm:"foreignKey:Code;references:Code"`
 }

 // ResourceType 套餐类型枚举
@@ -25,7 +27,18 @@ const (
 	ResourceTypeLong  ResourceType = 2 // 长效动态
 )

-// ResourceLongType 套餐计费模式枚举
+func (t ResourceType) Code() string {
+	switch t {
+	case ResourceTypeShort:
+		return "short"
+	case ResourceTypeLong:
+		return "long"
+	default:
+		return "unknown"
+	}
+}
+
+// ResourceMode 套餐计费模式枚举
 type ResourceMode int

 const (
--- a/web/models/resource_long.go
+++ b/web/models/resource_long.go
@@ -8,6 +8,7 @@ import (
 type ResourceLong struct {
 	ID         int32        `json:"id" gorm:"column:id"`                         // ID
 	ResourceID int32        `json:"resource_id" gorm:"column:resource_id"`       // 套餐ID
+	Code       string       `json:"code" gorm:"column:code"`                     // 套餐编码
 	Live       int32        `json:"live" gorm:"column:live"`                     // 可用时长(小时)
 	Type       ResourceMode `json:"type" gorm:"column:type"`                     // 套餐类型：1-包时，2-包量
 	Quota      int32        `json:"quota" gorm:"column:quota"`                   // 每日配额（包时）或总配额（包量）
@@ -15,4 +16,6 @@ type ResourceLong struct {
 	Used       int32        `json:"used" gorm:"column:used"`                     // 总用量
 	Daily      int32        `json:"daily" gorm:"column:daily"`                   // 当日用量
 	LastAt     *time.Time   `json:"last_at,omitempty" gorm:"column:last_at"`     // 最后使用时间
+
+	Sku *ProductSku `json:"sku,omitempty" gorm:"foreignKey:Code;references:Code"`
 }
--- a/web/models/resource_short.go
+++ b/web/models/resource_short.go
@@ -8,6 +8,7 @@ import (
 type ResourceShort struct {
 	ID         int32        `json:"id" gorm:"column:id"`                         // ID
 	ResourceID int32        `json:"resource_id" gorm:"column:resource_id"`       // 套餐ID
+	Code       string       `json:"code" gorm:"column:code"`                     // 套餐编码
 	Live       int32        `json:"live" gorm:"column:live"`                     // 可用时长(秒)
 	Type       ResourceMode `json:"type" gorm:"column:type"`                     // 套餐类型：1-包时，2-包量
 	Quota      int32        `json:"quota" gorm:"column:quota"`                   // 每日配额（包时）或总配额（包量）
@@ -15,4 +16,6 @@ type ResourceShort struct {
 	Used       int32        `json:"used" gorm:"column:used"`                     // 总用量
 	Daily      int32        `json:"daily" gorm:"column:daily"`                   // 当日用量
 	LastAt     *time.Time   `json:"last_at,omitempty" gorm:"column:last_at"`     // 最后使用时间
+
+	Sku *ProductSku `json:"sku,omitempty" gorm:"foreignKey:Code;references:Code"`
 }
--- a/web/queries/bill.gen.go
+++ b/web/queries/bill.gen.go
@@ -132,13 +132,56 @@ func newBill(db *gorm.DB, opts ...gen.DOOption) bill {
 		},
 		Short: struct {
 			field.RelationField
+			Sku struct {
+				field.RelationField
+				Product struct {
+					field.RelationField
+				}
+				Discount struct {
+					field.RelationField
+				}
+			}
 		}{
 			RelationField: field.NewRelation("Resource.Short", "models.ResourceShort"),
+			Sku: struct {
+				field.RelationField
+				Product struct {
+					field.RelationField
+				}
+				Discount struct {
+					field.RelationField
+				}
+			}{
+				RelationField: field.NewRelation("Resource.Short.Sku", "models.ProductSku"),
+				Product: struct {
+					field.RelationField
+				}{
+					RelationField: field.NewRelation("Resource.Short.Sku.Product", "models.Product"),
+				},
+				Discount: struct {
+					field.RelationField
+				}{
+					RelationField: field.NewRelation("Resource.Short.Sku.Discount", "models.ProductDiscount"),
+				},
+			},
 		},
 		Long: struct {
 			field.RelationField
+			Sku struct {
+				field.RelationField
+			}
 		}{
 			RelationField: field.NewRelation("Resource.Long", "models.ResourceLong"),
+			Sku: struct {
+				field.RelationField
+			}{
+				RelationField: field.NewRelation("Resource.Long.Sku", "models.ProductSku"),
+			},
+		},
+		Product: struct {
+			field.RelationField
+		}{
+			RelationField: field.NewRelation("Resource.Product", "models.Product"),
 		},
 	}

@@ -456,9 +499,24 @@ type billBelongsToResource struct {
 	}
 	Short struct {
 		field.RelationField
+		Sku struct {
+			field.RelationField
+			Product struct {
+				field.RelationField
+			}
+			Discount struct {
+				field.RelationField
+			}
+		}
 	}
 	Long struct {
 		field.RelationField
+		Sku struct {
+			field.RelationField
+		}
+	}
+	Product struct {
+		field.RelationField
 	}
 }

--- a/web/queries/channel.gen.go
+++ b/web/queries/channel.gen.go
@@ -129,13 +129,56 @@ func newChannel(db *gorm.DB, opts ...gen.DOOption) channel {
 		},
 		Short: struct {
 			field.RelationField
+			Sku struct {
+				field.RelationField
+				Product struct {
+					field.RelationField
+				}
+				Discount struct {
+					field.RelationField
+				}
+			}
 		}{
 			RelationField: field.NewRelation("Resource.Short", "models.ResourceShort"),
+			Sku: struct {
+				field.RelationField
+				Product struct {
+					field.RelationField
+				}
+				Discount struct {
+					field.RelationField
+				}
+			}{
+				RelationField: field.NewRelation("Resource.Short.Sku", "models.ProductSku"),
+				Product: struct {
+					field.RelationField
+				}{
+					RelationField: field.NewRelation("Resource.Short.Sku.Product", "models.Product"),
+				},
+				Discount: struct {
+					field.RelationField
+				}{
+					RelationField: field.NewRelation("Resource.Short.Sku.Discount", "models.ProductDiscount"),
+				},
+			},
 		},
 		Long: struct {
 			field.RelationField
+			Sku struct {
+				field.RelationField
+			}
 		}{
 			RelationField: field.NewRelation("Resource.Long", "models.ResourceLong"),
+			Sku: struct {
+				field.RelationField
+			}{
+				RelationField: field.NewRelation("Resource.Long.Sku", "models.ProductSku"),
+			},
+		},
+		Product: struct {
+			field.RelationField
+		}{
+			RelationField: field.NewRelation("Resource.Product", "models.Product"),
 		},
 	}

@@ -435,9 +478,24 @@ type channelBelongsToResource struct {
 	}
 	Short struct {
 		field.RelationField
+		Sku struct {
+			field.RelationField
+			Product struct {
+				field.RelationField
+			}
+			Discount struct {
+				field.RelationField
+			}
+		}
 	}
 	Long struct {
 		field.RelationField
+		Sku struct {
+			field.RelationField
+		}
+	}
+	Product struct {
+		field.RelationField
 	}
 }

--- a/web/queries/gen.go
+++ b/web/queries/gen.go
@@ -37,6 +37,7 @@ var (
 	LogsUserUsage           *logsUserUsage
 	Permission              *permission
 	Product                 *product
+	ProductDiscount         *productDiscount
 	ProductSku              *productSku
 	ProductSkuUser          *productSkuUser
 	Proxy                   *proxy
@@ -73,6 +74,7 @@ func SetDefault(db *gorm.DB, opts ...gen.DOOption) {
 	LogsUserUsage = &Q.LogsUserUsage
 	Permission = &Q.Permission
 	Product = &Q.Product
+	ProductDiscount = &Q.ProductDiscount
 	ProductSku = &Q.ProductSku
 	ProductSkuUser = &Q.ProductSkuUser
 	Proxy = &Q.Proxy
@@ -110,6 +112,7 @@ func Use(db *gorm.DB, opts ...gen.DOOption) *Query {
 		LogsUserUsage:           newLogsUserUsage(db, opts...),
 		Permission:              newPermission(db, opts...),
 		Product:                 newProduct(db, opts...),
+		ProductDiscount:         newProductDiscount(db, opts...),
 		ProductSku:              newProductSku(db, opts...),
 		ProductSkuUser:          newProductSkuUser(db, opts...),
 		Proxy:                   newProxy(db, opts...),
@@ -148,6 +151,7 @@ type Query struct {
 	LogsUserUsage           logsUserUsage
 	Permission              permission
 	Product                 product
+	ProductDiscount         productDiscount
 	ProductSku              productSku
 	ProductSkuUser          productSkuUser
 	Proxy                   proxy
@@ -187,6 +191,7 @@ func (q *Query) clone(db *gorm.DB) *Query {
 		LogsUserUsage:           q.LogsUserUsage.clone(db),
 		Permission:              q.Permission.clone(db),
 		Product:                 q.Product.clone(db),
+		ProductDiscount:         q.ProductDiscount.clone(db),
 		ProductSku:              q.ProductSku.clone(db),
 		ProductSkuUser:          q.ProductSkuUser.clone(db),
 		Proxy:                   q.Proxy.clone(db),
@@ -233,6 +238,7 @@ func (q *Query) ReplaceDB(db *gorm.DB) *Query {
 		LogsUserUsage:           q.LogsUserUsage.replaceDB(db),
 		Permission:              q.Permission.replaceDB(db),
 		Product:                 q.Product.replaceDB(db),
+		ProductDiscount:         q.ProductDiscount.replaceDB(db),
 		ProductSku:              q.ProductSku.replaceDB(db),
 		ProductSkuUser:          q.ProductSkuUser.replaceDB(db),
 		Proxy:                   q.Proxy.replaceDB(db),
@@ -269,6 +275,7 @@ type queryCtx struct {
 	LogsUserUsage           *logsUserUsageDo
 	Permission              *permissionDo
 	Product                 *productDo
+	ProductDiscount         *productDiscountDo
 	ProductSku              *productSkuDo
 	ProductSkuUser          *productSkuUserDo
 	Proxy                   *proxyDo
@@ -305,6 +312,7 @@ func (q *Query) WithContext(ctx context.Context) *queryCtx {
 		LogsUserUsage:           q.LogsUserUsage.WithContext(ctx),
 		Permission:              q.Permission.WithContext(ctx),
 		Product:                 q.Product.WithContext(ctx),
+		ProductDiscount:         q.ProductDiscount.WithContext(ctx),
 		ProductSku:              q.ProductSku.WithContext(ctx),
 		ProductSkuUser:          q.ProductSkuUser.WithContext(ctx),
 		Proxy:                   q.Proxy.WithContext(ctx),
--- a/web/queries/logs_user_usage.gen.go
+++ b/web/queries/logs_user_usage.gen.go
@@ -119,13 +119,56 @@ func newLogsUserUsage(db *gorm.DB, opts ...gen.DOOption) logsUserUsage {
 		},
 		Short: struct {
 			field.RelationField
+			Sku struct {
+				field.RelationField
+				Product struct {
+					field.RelationField
+				}
+				Discount struct {
+					field.RelationField
+				}
+			}
 		}{
 			RelationField: field.NewRelation("Resource.Short", "models.ResourceShort"),
+			Sku: struct {
+				field.RelationField
+				Product struct {
+					field.RelationField
+				}
+				Discount struct {
+					field.RelationField
+				}
+			}{
+				RelationField: field.NewRelation("Resource.Short.Sku", "models.ProductSku"),
+				Product: struct {
+					field.RelationField
+				}{
+					RelationField: field.NewRelation("Resource.Short.Sku.Product", "models.Product"),
+				},
+				Discount: struct {
+					field.RelationField
+				}{
+					RelationField: field.NewRelation("Resource.Short.Sku.Discount", "models.ProductDiscount"),
+				},
+			},
 		},
 		Long: struct {
 			field.RelationField
+			Sku struct {
+				field.RelationField
+			}
 		}{
 			RelationField: field.NewRelation("Resource.Long", "models.ResourceLong"),
+			Sku: struct {
+				field.RelationField
+			}{
+				RelationField: field.NewRelation("Resource.Long.Sku", "models.ProductSku"),
+			},
+		},
+		Product: struct {
+			field.RelationField
+		}{
+			RelationField: field.NewRelation("Resource.Product", "models.Product"),
 		},
 	}

@@ -336,9 +379,24 @@ type logsUserUsageBelongsToResource struct {
 	}
 	Short struct {
 		field.RelationField
+		Sku struct {
+			field.RelationField
+			Product struct {
+				field.RelationField
+			}
+			Discount struct {
+				field.RelationField
+			}
+		}
 	}
 	Long struct {
 		field.RelationField
+		Sku struct {
+			field.RelationField
+		}
+	}
+	Product struct {
+		field.RelationField
 	}
 }

--- a/web/queries/product_discount.gen.go
+++ b/web/queries/product_discount.gen.go
@@ -0,0 +1,339 @@
+// 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 queries
+
+import (
+	"context"
+
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+	"gorm.io/gorm/schema"
+
+	"gorm.io/gen"
+	"gorm.io/gen/field"
+
+	"gorm.io/plugin/dbresolver"
+
+	"platform/web/models"
+)
+
+func newProductDiscount(db *gorm.DB, opts ...gen.DOOption) productDiscount {
+	_productDiscount := productDiscount{}
+
+	_productDiscount.productDiscountDo.UseDB(db, opts...)
+	_productDiscount.productDiscountDo.UseModel(&models.ProductDiscount{})
+
+	tableName := _productDiscount.productDiscountDo.TableName()
+	_productDiscount.ALL = field.NewAsterisk(tableName)
+	_productDiscount.ID = field.NewInt32(tableName, "id")
+	_productDiscount.CreatedAt = field.NewTime(tableName, "created_at")
+	_productDiscount.UpdatedAt = field.NewTime(tableName, "updated_at")
+	_productDiscount.DeletedAt = field.NewField(tableName, "deleted_at")
+	_productDiscount.Name = field.NewString(tableName, "name")
+	_productDiscount.Discount = field.NewInt32(tableName, "discount")
+
+	_productDiscount.fillFieldMap()
+
+	return _productDiscount
+}
+
+type productDiscount struct {
+	productDiscountDo
+
+	ALL       field.Asterisk
+	ID        field.Int32
+	CreatedAt field.Time
+	UpdatedAt field.Time
+	DeletedAt field.Field
+	Name      field.String
+	Discount  field.Int32
+
+	fieldMap map[string]field.Expr
+}
+
+func (p productDiscount) Table(newTableName string) *productDiscount {
+	p.productDiscountDo.UseTable(newTableName)
+	return p.updateTableName(newTableName)
+}
+
+func (p productDiscount) As(alias string) *productDiscount {
+	p.productDiscountDo.DO = *(p.productDiscountDo.As(alias).(*gen.DO))
+	return p.updateTableName(alias)
+}
+
+func (p *productDiscount) updateTableName(table string) *productDiscount {
+	p.ALL = field.NewAsterisk(table)
+	p.ID = field.NewInt32(table, "id")
+	p.CreatedAt = field.NewTime(table, "created_at")
+	p.UpdatedAt = field.NewTime(table, "updated_at")
+	p.DeletedAt = field.NewField(table, "deleted_at")
+	p.Name = field.NewString(table, "name")
+	p.Discount = field.NewInt32(table, "discount")
+
+	p.fillFieldMap()
+
+	return p
+}
+
+func (p *productDiscount) GetFieldByName(fieldName string) (field.OrderExpr, bool) {
+	_f, ok := p.fieldMap[fieldName]
+	if !ok || _f == nil {
+		return nil, false
+	}
+	_oe, ok := _f.(field.OrderExpr)
+	return _oe, ok
+}
+
+func (p *productDiscount) fillFieldMap() {
+	p.fieldMap = make(map[string]field.Expr, 6)
+	p.fieldMap["id"] = p.ID
+	p.fieldMap["created_at"] = p.CreatedAt
+	p.fieldMap["updated_at"] = p.UpdatedAt
+	p.fieldMap["deleted_at"] = p.DeletedAt
+	p.fieldMap["name"] = p.Name
+	p.fieldMap["discount"] = p.Discount
+}
+
+func (p productDiscount) clone(db *gorm.DB) productDiscount {
+	p.productDiscountDo.ReplaceConnPool(db.Statement.ConnPool)
+	return p
+}
+
+func (p productDiscount) replaceDB(db *gorm.DB) productDiscount {
+	p.productDiscountDo.ReplaceDB(db)
+	return p
+}
+
+type productDiscountDo struct{ gen.DO }
+
+func (p productDiscountDo) Debug() *productDiscountDo {
+	return p.withDO(p.DO.Debug())
+}
+
+func (p productDiscountDo) WithContext(ctx context.Context) *productDiscountDo {
+	return p.withDO(p.DO.WithContext(ctx))
+}
+
+func (p productDiscountDo) ReadDB() *productDiscountDo {
+	return p.Clauses(dbresolver.Read)
+}
+
+func (p productDiscountDo) WriteDB() *productDiscountDo {
+	return p.Clauses(dbresolver.Write)
+}
+
+func (p productDiscountDo) Session(config *gorm.Session) *productDiscountDo {
+	return p.withDO(p.DO.Session(config))
+}
+
+func (p productDiscountDo) Clauses(conds ...clause.Expression) *productDiscountDo {
+	return p.withDO(p.DO.Clauses(conds...))
+}
+
+func (p productDiscountDo) Returning(value interface{}, columns ...string) *productDiscountDo {
+	return p.withDO(p.DO.Returning(value, columns...))
+}
+
+func (p productDiscountDo) Not(conds ...gen.Condition) *productDiscountDo {
+	return p.withDO(p.DO.Not(conds...))
+}
+
+func (p productDiscountDo) Or(conds ...gen.Condition) *productDiscountDo {
+	return p.withDO(p.DO.Or(conds...))
+}
+
+func (p productDiscountDo) Select(conds ...field.Expr) *productDiscountDo {
+	return p.withDO(p.DO.Select(conds...))
+}
+
+func (p productDiscountDo) Where(conds ...gen.Condition) *productDiscountDo {
+	return p.withDO(p.DO.Where(conds...))
+}
+
+func (p productDiscountDo) Order(conds ...field.Expr) *productDiscountDo {
+	return p.withDO(p.DO.Order(conds...))
+}
+
+func (p productDiscountDo) Distinct(cols ...field.Expr) *productDiscountDo {
+	return p.withDO(p.DO.Distinct(cols...))
+}
+
+func (p productDiscountDo) Omit(cols ...field.Expr) *productDiscountDo {
+	return p.withDO(p.DO.Omit(cols...))
+}
+
+func (p productDiscountDo) Join(table schema.Tabler, on ...field.Expr) *productDiscountDo {
+	return p.withDO(p.DO.Join(table, on...))
+}
+
+func (p productDiscountDo) LeftJoin(table schema.Tabler, on ...field.Expr) *productDiscountDo {
+	return p.withDO(p.DO.LeftJoin(table, on...))
+}
+
+func (p productDiscountDo) RightJoin(table schema.Tabler, on ...field.Expr) *productDiscountDo {
+	return p.withDO(p.DO.RightJoin(table, on...))
+}
+
+func (p productDiscountDo) Group(cols ...field.Expr) *productDiscountDo {
+	return p.withDO(p.DO.Group(cols...))
+}
+
+func (p productDiscountDo) Having(conds ...gen.Condition) *productDiscountDo {
+	return p.withDO(p.DO.Having(conds...))
+}
+
+func (p productDiscountDo) Limit(limit int) *productDiscountDo {
+	return p.withDO(p.DO.Limit(limit))
+}
+
+func (p productDiscountDo) Offset(offset int) *productDiscountDo {
+	return p.withDO(p.DO.Offset(offset))
+}
+
+func (p productDiscountDo) Scopes(funcs ...func(gen.Dao) gen.Dao) *productDiscountDo {
+	return p.withDO(p.DO.Scopes(funcs...))
+}
+
+func (p productDiscountDo) Unscoped() *productDiscountDo {
+	return p.withDO(p.DO.Unscoped())
+}
+
+func (p productDiscountDo) Create(values ...*models.ProductDiscount) error {
+	if len(values) == 0 {
+		return nil
+	}
+	return p.DO.Create(values)
+}
+
+func (p productDiscountDo) CreateInBatches(values []*models.ProductDiscount, batchSize int) error {
+	return p.DO.CreateInBatches(values, batchSize)
+}
+
+// Save : !!! underlying implementation is different with GORM
+// The method is equivalent to executing the statement: db.Clauses(clause.OnConflict{UpdateAll: true}).Create(values)
+func (p productDiscountDo) Save(values ...*models.ProductDiscount) error {
+	if len(values) == 0 {
+		return nil
+	}
+	return p.DO.Save(values)
+}
+
+func (p productDiscountDo) First() (*models.ProductDiscount, error) {
+	if result, err := p.DO.First(); err != nil {
+		return nil, err
+	} else {
+		return result.(*models.ProductDiscount), nil
+	}
+}
+
+func (p productDiscountDo) Take() (*models.ProductDiscount, error) {
+	if result, err := p.DO.Take(); err != nil {
+		return nil, err
+	} else {
+		return result.(*models.ProductDiscount), nil
+	}
+}
+
+func (p productDiscountDo) Last() (*models.ProductDiscount, error) {
+	if result, err := p.DO.Last(); err != nil {
+		return nil, err
+	} else {
+		return result.(*models.ProductDiscount), nil
+	}
+}
+
+func (p productDiscountDo) Find() ([]*models.ProductDiscount, error) {
+	result, err := p.DO.Find()
+	return result.([]*models.ProductDiscount), err
+}
+
+func (p productDiscountDo) FindInBatch(batchSize int, fc func(tx gen.Dao, batch int) error) (results []*models.ProductDiscount, err error) {
+	buf := make([]*models.ProductDiscount, 0, batchSize)
+	err = p.DO.FindInBatches(&buf, batchSize, func(tx gen.Dao, batch int) error {
+		defer func() { results = append(results, buf...) }()
+		return fc(tx, batch)
+	})
+	return results, err
+}
+
+func (p productDiscountDo) FindInBatches(result *[]*models.ProductDiscount, batchSize int, fc func(tx gen.Dao, batch int) error) error {
+	return p.DO.FindInBatches(result, batchSize, fc)
+}
+
+func (p productDiscountDo) Attrs(attrs ...field.AssignExpr) *productDiscountDo {
+	return p.withDO(p.DO.Attrs(attrs...))
+}
+
+func (p productDiscountDo) Assign(attrs ...field.AssignExpr) *productDiscountDo {
+	return p.withDO(p.DO.Assign(attrs...))
+}
+
+func (p productDiscountDo) Joins(fields ...field.RelationField) *productDiscountDo {
+	for _, _f := range fields {
+		p = *p.withDO(p.DO.Joins(_f))
+	}
+	return &p
+}
+
+func (p productDiscountDo) Preload(fields ...field.RelationField) *productDiscountDo {
+	for _, _f := range fields {
+		p = *p.withDO(p.DO.Preload(_f))
+	}
+	return &p
+}
+
+func (p productDiscountDo) FirstOrInit() (*models.ProductDiscount, error) {
+	if result, err := p.DO.FirstOrInit(); err != nil {
+		return nil, err
+	} else {
+		return result.(*models.ProductDiscount), nil
+	}
+}
+
+func (p productDiscountDo) FirstOrCreate() (*models.ProductDiscount, error) {
+	if result, err := p.DO.FirstOrCreate(); err != nil {
+		return nil, err
+	} else {
+		return result.(*models.ProductDiscount), nil
+	}
+}
+
+func (p productDiscountDo) FindByPage(offset int, limit int) (result []*models.ProductDiscount, count int64, err error) {
+	result, err = p.Offset(offset).Limit(limit).Find()
+	if err != nil {
+		return
+	}
+
+	if size := len(result); 0 < limit && 0 < size && size < limit {
+		count = int64(size + offset)
+		return
+	}
+
+	count, err = p.Offset(-1).Limit(-1).Count()
+	return
+}
+
+func (p productDiscountDo) ScanByPage(result interface{}, offset int, limit int) (count int64, err error) {
+	count, err = p.Count()
+	if err != nil {
+		return
+	}
+
+	err = p.Offset(offset).Limit(limit).Scan(result)
+	return
+}
+
+func (p productDiscountDo) Scan(result interface{}) (err error) {
+	return p.DO.Scan(result)
+}
+
+func (p productDiscountDo) Delete(models ...*models.ProductDiscount) (result gen.ResultInfo, err error) {
+	return p.DO.Delete(models)
+}
+
+func (p *productDiscountDo) withDO(do gen.Dao) *productDiscountDo {
+	p.DO = *do.(*gen.DO)
+	return p
+}
--- a/web/queries/product_sku.gen.go
+++ b/web/queries/product_sku.gen.go
@@ -32,16 +32,22 @@ func newProductSku(db *gorm.DB, opts ...gen.DOOption) productSku {
 	_productSku.UpdatedAt = field.NewTime(tableName, "updated_at")
 	_productSku.DeletedAt = field.NewField(tableName, "deleted_at")
 	_productSku.ProductID = field.NewInt32(tableName, "product_id")
+	_productSku.DiscountId = field.NewInt32(tableName, "discount_id")
 	_productSku.Code = field.NewString(tableName, "code")
 	_productSku.Name = field.NewString(tableName, "name")
 	_productSku.Price = field.NewField(tableName, "price")
-	_productSku.Discount = field.NewFloat32(tableName, "discount")
 	_productSku.Product = productSkuBelongsToProduct{
 		db: db.Session(&gorm.Session{}),

 		RelationField: field.NewRelation("Product", "models.Product"),
 	}

+	_productSku.Discount = productSkuBelongsToDiscount{
+		db: db.Session(&gorm.Session{}),
+
+		RelationField: field.NewRelation("Discount", "models.ProductDiscount"),
+	}
+
 	_productSku.fillFieldMap()

 	return _productSku
@@ -50,17 +56,19 @@ func newProductSku(db *gorm.DB, opts ...gen.DOOption) productSku {
 type productSku struct {
 	productSkuDo

-	ALL       field.Asterisk
-	ID        field.Int32
-	CreatedAt field.Time
-	UpdatedAt field.Time
-	DeletedAt field.Field
-	ProductID field.Int32
-	Code      field.String
-	Name      field.String
-	Price     field.Field
-	Discount  field.Float32
-	Product   productSkuBelongsToProduct
+	ALL        field.Asterisk
+	ID         field.Int32
+	CreatedAt  field.Time
+	UpdatedAt  field.Time
+	DeletedAt  field.Field
+	ProductID  field.Int32
+	DiscountId field.Int32
+	Code       field.String
+	Name       field.String
+	Price      field.Field
+	Product    productSkuBelongsToProduct
+
+	Discount productSkuBelongsToDiscount

 	fieldMap map[string]field.Expr
 }
@@ -82,10 +90,10 @@ func (p *productSku) updateTableName(table string) *productSku {
 	p.UpdatedAt = field.NewTime(table, "updated_at")
 	p.DeletedAt = field.NewField(table, "deleted_at")
 	p.ProductID = field.NewInt32(table, "product_id")
+	p.DiscountId = field.NewInt32(table, "discount_id")
 	p.Code = field.NewString(table, "code")
 	p.Name = field.NewString(table, "name")
 	p.Price = field.NewField(table, "price")
-	p.Discount = field.NewFloat32(table, "discount")

 	p.fillFieldMap()

@@ -102,16 +110,16 @@ func (p *productSku) GetFieldByName(fieldName string) (field.OrderExpr, bool) {
 }

 func (p *productSku) fillFieldMap() {
-	p.fieldMap = make(map[string]field.Expr, 10)
+	p.fieldMap = make(map[string]field.Expr, 11)
 	p.fieldMap["id"] = p.ID
 	p.fieldMap["created_at"] = p.CreatedAt
 	p.fieldMap["updated_at"] = p.UpdatedAt
 	p.fieldMap["deleted_at"] = p.DeletedAt
 	p.fieldMap["product_id"] = p.ProductID
+	p.fieldMap["discount_id"] = p.DiscountId
 	p.fieldMap["code"] = p.Code
 	p.fieldMap["name"] = p.Name
 	p.fieldMap["price"] = p.Price
-	p.fieldMap["discount"] = p.Discount

 }

@@ -119,12 +127,15 @@ func (p productSku) clone(db *gorm.DB) productSku {
 	p.productSkuDo.ReplaceConnPool(db.Statement.ConnPool)
 	p.Product.db = db.Session(&gorm.Session{Initialized: true})
 	p.Product.db.Statement.ConnPool = db.Statement.ConnPool
+	p.Discount.db = db.Session(&gorm.Session{Initialized: true})
+	p.Discount.db.Statement.ConnPool = db.Statement.ConnPool
 	return p
 }

 func (p productSku) replaceDB(db *gorm.DB) productSku {
 	p.productSkuDo.ReplaceDB(db)
 	p.Product.db = db.Session(&gorm.Session{})
+	p.Discount.db = db.Session(&gorm.Session{})
 	return p
 }

@@ -209,6 +220,87 @@ func (a productSkuBelongsToProductTx) Unscoped() *productSkuBelongsToProductTx {
 	return &a
 }

+type productSkuBelongsToDiscount struct {
+	db *gorm.DB
+
+	field.RelationField
+}
+
+func (a productSkuBelongsToDiscount) Where(conds ...field.Expr) *productSkuBelongsToDiscount {
+	if len(conds) == 0 {
+		return &a
+	}
+
+	exprs := make([]clause.Expression, 0, len(conds))
+	for _, cond := range conds {
+		exprs = append(exprs, cond.BeCond().(clause.Expression))
+	}
+	a.db = a.db.Clauses(clause.Where{Exprs: exprs})
+	return &a
+}
+
+func (a productSkuBelongsToDiscount) WithContext(ctx context.Context) *productSkuBelongsToDiscount {
+	a.db = a.db.WithContext(ctx)
+	return &a
+}
+
+func (a productSkuBelongsToDiscount) Session(session *gorm.Session) *productSkuBelongsToDiscount {
+	a.db = a.db.Session(session)
+	return &a
+}
+
+func (a productSkuBelongsToDiscount) Model(m *models.ProductSku) *productSkuBelongsToDiscountTx {
+	return &productSkuBelongsToDiscountTx{a.db.Model(m).Association(a.Name())}
+}
+
+func (a productSkuBelongsToDiscount) Unscoped() *productSkuBelongsToDiscount {
+	a.db = a.db.Unscoped()
+	return &a
+}
+
+type productSkuBelongsToDiscountTx struct{ tx *gorm.Association }
+
+func (a productSkuBelongsToDiscountTx) Find() (result *models.ProductDiscount, err error) {
+	return result, a.tx.Find(&result)
+}
+
+func (a productSkuBelongsToDiscountTx) Append(values ...*models.ProductDiscount) (err error) {
+	targetValues := make([]interface{}, len(values))
+	for i, v := range values {
+		targetValues[i] = v
+	}
+	return a.tx.Append(targetValues...)
+}
+
+func (a productSkuBelongsToDiscountTx) Replace(values ...*models.ProductDiscount) (err error) {
+	targetValues := make([]interface{}, len(values))
+	for i, v := range values {
+		targetValues[i] = v
+	}
+	return a.tx.Replace(targetValues...)
+}
+
+func (a productSkuBelongsToDiscountTx) Delete(values ...*models.ProductDiscount) (err error) {
+	targetValues := make([]interface{}, len(values))
+	for i, v := range values {
+		targetValues[i] = v
+	}
+	return a.tx.Delete(targetValues...)
+}
+
+func (a productSkuBelongsToDiscountTx) Clear() error {
+	return a.tx.Clear()
+}
+
+func (a productSkuBelongsToDiscountTx) Count() int64 {
+	return a.tx.Count()
+}
+
+func (a productSkuBelongsToDiscountTx) Unscoped() *productSkuBelongsToDiscountTx {
+	a.tx = a.tx.Unscoped()
+	return &a
+}
+
 type productSkuDo struct{ gen.DO }

 func (p productSkuDo) Debug() *productSkuDo {
--- a/web/queries/product_sku_user.gen.go
+++ b/web/queries/product_sku_user.gen.go
@@ -30,8 +30,7 @@ func newProductSkuUser(db *gorm.DB, opts ...gen.DOOption) productSkuUser {
 	_productSkuUser.ID = field.NewInt32(tableName, "id")
 	_productSkuUser.UserID = field.NewInt32(tableName, "user_id")
 	_productSkuUser.ProductSkuID = field.NewInt32(tableName, "product_sku_id")
-	_productSkuUser.Price = field.NewField(tableName, "price")
-	_productSkuUser.Discount = field.NewFloat32(tableName, "discount")
+	_productSkuUser.DiscountId = field.NewInt32(tableName, "discount_id")
 	_productSkuUser.CreatedAt = field.NewTime(tableName, "created_at")
 	_productSkuUser.UpdatedAt = field.NewTime(tableName, "updated_at")
 	_productSkuUser.User = productSkuUserBelongsToUser{
@@ -114,6 +113,17 @@ func newProductSkuUser(db *gorm.DB, opts ...gen.DOOption) productSkuUser {
 		}{
 			RelationField: field.NewRelation("ProductSku.Product", "models.Product"),
 		},
+		Discount: struct {
+			field.RelationField
+		}{
+			RelationField: field.NewRelation("ProductSku.Discount", "models.ProductDiscount"),
+		},
+	}
+
+	_productSkuUser.Discount = productSkuUserBelongsToDiscount{
+		db: db.Session(&gorm.Session{}),
+
+		RelationField: field.NewRelation("Discount", "models.ProductDiscount"),
 	}

 	_productSkuUser.fillFieldMap()
@@ -128,14 +138,15 @@ type productSkuUser struct {
 	ID           field.Int32
 	UserID       field.Int32
 	ProductSkuID field.Int32
-	Price        field.Field
-	Discount     field.Float32
+	DiscountId   field.Int32
 	CreatedAt    field.Time
 	UpdatedAt    field.Time
 	User         productSkuUserBelongsToUser

 	ProductSku productSkuUserBelongsToProductSku

+	Discount productSkuUserBelongsToDiscount
+
 	fieldMap map[string]field.Expr
 }

@@ -154,8 +165,7 @@ func (p *productSkuUser) updateTableName(table string) *productSkuUser {
 	p.ID = field.NewInt32(table, "id")
 	p.UserID = field.NewInt32(table, "user_id")
 	p.ProductSkuID = field.NewInt32(table, "product_sku_id")
-	p.Price = field.NewField(table, "price")
-	p.Discount = field.NewFloat32(table, "discount")
+	p.DiscountId = field.NewInt32(table, "discount_id")
 	p.CreatedAt = field.NewTime(table, "created_at")
 	p.UpdatedAt = field.NewTime(table, "updated_at")

@@ -178,8 +188,7 @@ func (p *productSkuUser) fillFieldMap() {
 	p.fieldMap["id"] = p.ID
 	p.fieldMap["user_id"] = p.UserID
 	p.fieldMap["product_sku_id"] = p.ProductSkuID
-	p.fieldMap["price"] = p.Price
-	p.fieldMap["discount"] = p.Discount
+	p.fieldMap["discount_id"] = p.DiscountId
 	p.fieldMap["created_at"] = p.CreatedAt
 	p.fieldMap["updated_at"] = p.UpdatedAt

@@ -191,6 +200,8 @@ func (p productSkuUser) clone(db *gorm.DB) productSkuUser {
 	p.User.db.Statement.ConnPool = db.Statement.ConnPool
 	p.ProductSku.db = db.Session(&gorm.Session{Initialized: true})
 	p.ProductSku.db.Statement.ConnPool = db.Statement.ConnPool
+	p.Discount.db = db.Session(&gorm.Session{Initialized: true})
+	p.Discount.db.Statement.ConnPool = db.Statement.ConnPool
 	return p
 }

@@ -198,6 +209,7 @@ func (p productSkuUser) replaceDB(db *gorm.DB) productSkuUser {
 	p.productSkuUserDo.ReplaceDB(db)
 	p.User.db = db.Session(&gorm.Session{})
 	p.ProductSku.db = db.Session(&gorm.Session{})
+	p.Discount.db = db.Session(&gorm.Session{})
 	return p
 }

@@ -312,6 +324,9 @@ type productSkuUserBelongsToProductSku struct {
 	Product struct {
 		field.RelationField
 	}
+	Discount struct {
+		field.RelationField
+	}
 }

 func (a productSkuUserBelongsToProductSku) Where(conds ...field.Expr) *productSkuUserBelongsToProductSku {
@@ -389,6 +404,87 @@ func (a productSkuUserBelongsToProductSkuTx) Unscoped() *productSkuUserBelongsTo
 	return &a
 }

+type productSkuUserBelongsToDiscount struct {
+	db *gorm.DB
+
+	field.RelationField
+}
+
+func (a productSkuUserBelongsToDiscount) Where(conds ...field.Expr) *productSkuUserBelongsToDiscount {
+	if len(conds) == 0 {
+		return &a
+	}
+
+	exprs := make([]clause.Expression, 0, len(conds))
+	for _, cond := range conds {
+		exprs = append(exprs, cond.BeCond().(clause.Expression))
+	}
+	a.db = a.db.Clauses(clause.Where{Exprs: exprs})
+	return &a
+}
+
+func (a productSkuUserBelongsToDiscount) WithContext(ctx context.Context) *productSkuUserBelongsToDiscount {
+	a.db = a.db.WithContext(ctx)
+	return &a
+}
+
+func (a productSkuUserBelongsToDiscount) Session(session *gorm.Session) *productSkuUserBelongsToDiscount {
+	a.db = a.db.Session(session)
+	return &a
+}
+
+func (a productSkuUserBelongsToDiscount) Model(m *models.ProductSkuUser) *productSkuUserBelongsToDiscountTx {
+	return &productSkuUserBelongsToDiscountTx{a.db.Model(m).Association(a.Name())}
+}
+
+func (a productSkuUserBelongsToDiscount) Unscoped() *productSkuUserBelongsToDiscount {
+	a.db = a.db.Unscoped()
+	return &a
+}
+
+type productSkuUserBelongsToDiscountTx struct{ tx *gorm.Association }
+
+func (a productSkuUserBelongsToDiscountTx) Find() (result *models.ProductDiscount, err error) {
+	return result, a.tx.Find(&result)
+}
+
+func (a productSkuUserBelongsToDiscountTx) Append(values ...*models.ProductDiscount) (err error) {
+	targetValues := make([]interface{}, len(values))
+	for i, v := range values {
+		targetValues[i] = v
+	}
+	return a.tx.Append(targetValues...)
+}
+
+func (a productSkuUserBelongsToDiscountTx) Replace(values ...*models.ProductDiscount) (err error) {
+	targetValues := make([]interface{}, len(values))
+	for i, v := range values {
+		targetValues[i] = v
+	}
+	return a.tx.Replace(targetValues...)
+}
+
+func (a productSkuUserBelongsToDiscountTx) Delete(values ...*models.ProductDiscount) (err error) {
+	targetValues := make([]interface{}, len(values))
+	for i, v := range values {
+		targetValues[i] = v
+	}
+	return a.tx.Delete(targetValues...)
+}
+
+func (a productSkuUserBelongsToDiscountTx) Clear() error {
+	return a.tx.Clear()
+}
+
+func (a productSkuUserBelongsToDiscountTx) Count() int64 {
+	return a.tx.Count()
+}
+
+func (a productSkuUserBelongsToDiscountTx) Unscoped() *productSkuUserBelongsToDiscountTx {
+	a.tx = a.tx.Unscoped()
+	return &a
+}
+
 type productSkuUserDo struct{ gen.DO }

 func (p productSkuUserDo) Debug() *productSkuUserDo {
--- a/web/queries/proxy.gen.go
+++ b/web/queries/proxy.gen.go
@@ -141,9 +141,24 @@ func newProxy(db *gorm.DB, opts ...gen.DOOption) proxy {
 			}
 			Short struct {
 				field.RelationField
+				Sku struct {
+					field.RelationField
+					Product struct {
+						field.RelationField
+					}
+					Discount struct {
+						field.RelationField
+					}
+				}
 			}
 			Long struct {
 				field.RelationField
+				Sku struct {
+					field.RelationField
+				}
+			}
+			Product struct {
+				field.RelationField
 			}
 		}{
 			RelationField: field.NewRelation("Channels.Resource", "models.Resource"),
@@ -154,13 +169,56 @@ func newProxy(db *gorm.DB, opts ...gen.DOOption) proxy {
 			},
 			Short: struct {
 				field.RelationField
+				Sku struct {
+					field.RelationField
+					Product struct {
+						field.RelationField
+					}
+					Discount struct {
+						field.RelationField
+					}
+				}
 			}{
 				RelationField: field.NewRelation("Channels.Resource.Short", "models.ResourceShort"),
+				Sku: struct {
+					field.RelationField
+					Product struct {
+						field.RelationField
+					}
+					Discount struct {
+						field.RelationField
+					}
+				}{
+					RelationField: field.NewRelation("Channels.Resource.Short.Sku", "models.ProductSku"),
+					Product: struct {
+						field.RelationField
+					}{
+						RelationField: field.NewRelation("Channels.Resource.Short.Sku.Product", "models.Product"),
+					},
+					Discount: struct {
+						field.RelationField
+					}{
+						RelationField: field.NewRelation("Channels.Resource.Short.Sku.Discount", "models.ProductDiscount"),
+					},
+				},
 			},
 			Long: struct {
 				field.RelationField
+				Sku struct {
+					field.RelationField
+				}
 			}{
 				RelationField: field.NewRelation("Channels.Resource.Long", "models.ResourceLong"),
+				Sku: struct {
+					field.RelationField
+				}{
+					RelationField: field.NewRelation("Channels.Resource.Long.Sku", "models.ProductSku"),
+				},
+			},
+			Product: struct {
+				field.RelationField
+			}{
+				RelationField: field.NewRelation("Channels.Resource.Product", "models.Product"),
 			},
 		},
 		Proxy: struct {
@@ -314,9 +372,24 @@ type proxyHasManyChannels struct {
 		}
 		Short struct {
 			field.RelationField
+			Sku struct {
+				field.RelationField
+				Product struct {
+					field.RelationField
+				}
+				Discount struct {
+					field.RelationField
+				}
+			}
 		}
 		Long struct {
 			field.RelationField
+			Sku struct {
+				field.RelationField
+			}
+		}
+		Product struct {
+			field.RelationField
 		}
 	}
 	Proxy struct {
--- a/web/queries/resource.gen.go
+++ b/web/queries/resource.gen.go
@@ -35,16 +35,49 @@ func newResource(db *gorm.DB, opts ...gen.DOOption) resource {
 	_resource.ResourceNo = field.NewString(tableName, "resource_no")
 	_resource.Active = field.NewBool(tableName, "active")
 	_resource.Type = field.NewInt(tableName, "type")
+	_resource.Code = field.NewString(tableName, "code")
 	_resource.Short = resourceHasOneShort{
 		db: db.Session(&gorm.Session{}),

 		RelationField: field.NewRelation("Short", "models.ResourceShort"),
+		Sku: struct {
+			field.RelationField
+			Product struct {
+				field.RelationField
+			}
+			Discount struct {
+				field.RelationField
+			}
+		}{
+			RelationField: field.NewRelation("Short.Sku", "models.ProductSku"),
+			Product: struct {
+				field.RelationField
+			}{
+				RelationField: field.NewRelation("Short.Sku.Product", "models.Product"),
+			},
+			Discount: struct {
+				field.RelationField
+			}{
+				RelationField: field.NewRelation("Short.Sku.Discount", "models.ProductDiscount"),
+			},
+		},
 	}

 	_resource.Long = resourceHasOneLong{
 		db: db.Session(&gorm.Session{}),

 		RelationField: field.NewRelation("Long", "models.ResourceLong"),
+		Sku: struct {
+			field.RelationField
+		}{
+			RelationField: field.NewRelation("Long.Sku", "models.ProductSku"),
+		},
+	}
+
+	_resource.Product = resourceHasOneProduct{
+		db: db.Session(&gorm.Session{}),
+
+		RelationField: field.NewRelation("Product", "models.Product"),
 	}

 	_resource.User = resourceBelongsToUser{
@@ -135,10 +168,13 @@ type resource struct {
 	ResourceNo field.String
 	Active     field.Bool
 	Type       field.Int
+	Code       field.String
 	Short      resourceHasOneShort

 	Long resourceHasOneLong

+	Product resourceHasOneProduct
+
 	User resourceBelongsToUser

 	fieldMap map[string]field.Expr
@@ -164,6 +200,7 @@ func (r *resource) updateTableName(table string) *resource {
 	r.ResourceNo = field.NewString(table, "resource_no")
 	r.Active = field.NewBool(table, "active")
 	r.Type = field.NewInt(table, "type")
+	r.Code = field.NewString(table, "code")

 	r.fillFieldMap()

@@ -180,7 +217,7 @@ func (r *resource) GetFieldByName(fieldName string) (field.OrderExpr, bool) {
 }

 func (r *resource) fillFieldMap() {
-	r.fieldMap = make(map[string]field.Expr, 11)
+	r.fieldMap = make(map[string]field.Expr, 13)
 	r.fieldMap["id"] = r.ID
 	r.fieldMap["created_at"] = r.CreatedAt
 	r.fieldMap["updated_at"] = r.UpdatedAt
@@ -189,6 +226,7 @@ func (r *resource) fillFieldMap() {
 	r.fieldMap["resource_no"] = r.ResourceNo
 	r.fieldMap["active"] = r.Active
 	r.fieldMap["type"] = r.Type
+	r.fieldMap["code"] = r.Code

 }

@@ -198,6 +236,8 @@ func (r resource) clone(db *gorm.DB) resource {
 	r.Short.db.Statement.ConnPool = db.Statement.ConnPool
 	r.Long.db = db.Session(&gorm.Session{Initialized: true})
 	r.Long.db.Statement.ConnPool = db.Statement.ConnPool
+	r.Product.db = db.Session(&gorm.Session{Initialized: true})
+	r.Product.db.Statement.ConnPool = db.Statement.ConnPool
 	r.User.db = db.Session(&gorm.Session{Initialized: true})
 	r.User.db.Statement.ConnPool = db.Statement.ConnPool
 	return r
@@ -207,6 +247,7 @@ func (r resource) replaceDB(db *gorm.DB) resource {
 	r.resourceDo.ReplaceDB(db)
 	r.Short.db = db.Session(&gorm.Session{})
 	r.Long.db = db.Session(&gorm.Session{})
+	r.Product.db = db.Session(&gorm.Session{})
 	r.User.db = db.Session(&gorm.Session{})
 	return r
 }
@@ -215,6 +256,16 @@ type resourceHasOneShort struct {
 	db *gorm.DB

 	field.RelationField
+
+	Sku struct {
+		field.RelationField
+		Product struct {
+			field.RelationField
+		}
+		Discount struct {
+			field.RelationField
+		}
+	}
 }

 func (a resourceHasOneShort) Where(conds ...field.Expr) *resourceHasOneShort {
@@ -296,6 +347,10 @@ type resourceHasOneLong struct {
 	db *gorm.DB

 	field.RelationField
+
+	Sku struct {
+		field.RelationField
+	}
 }

 func (a resourceHasOneLong) Where(conds ...field.Expr) *resourceHasOneLong {
@@ -373,6 +428,87 @@ func (a resourceHasOneLongTx) Unscoped() *resourceHasOneLongTx {
 	return &a
 }

+type resourceHasOneProduct struct {
+	db *gorm.DB
+
+	field.RelationField
+}
+
+func (a resourceHasOneProduct) Where(conds ...field.Expr) *resourceHasOneProduct {
+	if len(conds) == 0 {
+		return &a
+	}
+
+	exprs := make([]clause.Expression, 0, len(conds))
+	for _, cond := range conds {
+		exprs = append(exprs, cond.BeCond().(clause.Expression))
+	}
+	a.db = a.db.Clauses(clause.Where{Exprs: exprs})
+	return &a
+}
+
+func (a resourceHasOneProduct) WithContext(ctx context.Context) *resourceHasOneProduct {
+	a.db = a.db.WithContext(ctx)
+	return &a
+}
+
+func (a resourceHasOneProduct) Session(session *gorm.Session) *resourceHasOneProduct {
+	a.db = a.db.Session(session)
+	return &a
+}
+
+func (a resourceHasOneProduct) Model(m *models.Resource) *resourceHasOneProductTx {
+	return &resourceHasOneProductTx{a.db.Model(m).Association(a.Name())}
+}
+
+func (a resourceHasOneProduct) Unscoped() *resourceHasOneProduct {
+	a.db = a.db.Unscoped()
+	return &a
+}
+
+type resourceHasOneProductTx struct{ tx *gorm.Association }
+
+func (a resourceHasOneProductTx) Find() (result *models.Product, err error) {
+	return result, a.tx.Find(&result)
+}
+
+func (a resourceHasOneProductTx) Append(values ...*models.Product) (err error) {
+	targetValues := make([]interface{}, len(values))
+	for i, v := range values {
+		targetValues[i] = v
+	}
+	return a.tx.Append(targetValues...)
+}
+
+func (a resourceHasOneProductTx) Replace(values ...*models.Product) (err error) {
+	targetValues := make([]interface{}, len(values))
+	for i, v := range values {
+		targetValues[i] = v
+	}
+	return a.tx.Replace(targetValues...)
+}
+
+func (a resourceHasOneProductTx) Delete(values ...*models.Product) (err error) {
+	targetValues := make([]interface{}, len(values))
+	for i, v := range values {
+		targetValues[i] = v
+	}
+	return a.tx.Delete(targetValues...)
+}
+
+func (a resourceHasOneProductTx) Clear() error {
+	return a.tx.Clear()
+}
+
+func (a resourceHasOneProductTx) Count() int64 {
+	return a.tx.Count()
+}
+
+func (a resourceHasOneProductTx) Unscoped() *resourceHasOneProductTx {
+	a.tx = a.tx.Unscoped()
+	return &a
+}
+
 type resourceBelongsToUser struct {
 	db *gorm.DB

--- a/web/queries/resource_long.gen.go
+++ b/web/queries/resource_long.gen.go
@@ -29,6 +29,7 @@ func newResourceLong(db *gorm.DB, opts ...gen.DOOption) resourceLong {
 	_resourceLong.ALL = field.NewAsterisk(tableName)
 	_resourceLong.ID = field.NewInt32(tableName, "id")
 	_resourceLong.ResourceID = field.NewInt32(tableName, "resource_id")
+	_resourceLong.Code = field.NewString(tableName, "code")
 	_resourceLong.Live = field.NewInt32(tableName, "live")
 	_resourceLong.Type = field.NewInt(tableName, "type")
 	_resourceLong.Quota = field.NewInt32(tableName, "quota")
@@ -36,6 +37,21 @@ func newResourceLong(db *gorm.DB, opts ...gen.DOOption) resourceLong {
 	_resourceLong.Used = field.NewInt32(tableName, "used")
 	_resourceLong.Daily = field.NewInt32(tableName, "daily")
 	_resourceLong.LastAt = field.NewTime(tableName, "last_at")
+	_resourceLong.Sku = resourceLongHasOneSku{
+		db: db.Session(&gorm.Session{}),
+
+		RelationField: field.NewRelation("Sku", "models.ProductSku"),
+		Product: struct {
+			field.RelationField
+		}{
+			RelationField: field.NewRelation("Sku.Product", "models.Product"),
+		},
+		Discount: struct {
+			field.RelationField
+		}{
+			RelationField: field.NewRelation("Sku.Discount", "models.ProductDiscount"),
+		},
+	}

 	_resourceLong.fillFieldMap()

@@ -48,6 +64,7 @@ type resourceLong struct {
 	ALL        field.Asterisk
 	ID         field.Int32
 	ResourceID field.Int32
+	Code       field.String
 	Live       field.Int32
 	Type       field.Int
 	Quota      field.Int32
@@ -55,6 +72,7 @@ type resourceLong struct {
 	Used       field.Int32
 	Daily      field.Int32
 	LastAt     field.Time
+	Sku        resourceLongHasOneSku

 	fieldMap map[string]field.Expr
 }
@@ -73,6 +91,7 @@ func (r *resourceLong) updateTableName(table string) *resourceLong {
 	r.ALL = field.NewAsterisk(table)
 	r.ID = field.NewInt32(table, "id")
 	r.ResourceID = field.NewInt32(table, "resource_id")
+	r.Code = field.NewString(table, "code")
 	r.Live = field.NewInt32(table, "live")
 	r.Type = field.NewInt(table, "type")
 	r.Quota = field.NewInt32(table, "quota")
@@ -96,9 +115,10 @@ func (r *resourceLong) GetFieldByName(fieldName string) (field.OrderExpr, bool)
 }

 func (r *resourceLong) fillFieldMap() {
-	r.fieldMap = make(map[string]field.Expr, 9)
+	r.fieldMap = make(map[string]field.Expr, 11)
 	r.fieldMap["id"] = r.ID
 	r.fieldMap["resource_id"] = r.ResourceID
+	r.fieldMap["code"] = r.Code
 	r.fieldMap["live"] = r.Live
 	r.fieldMap["type"] = r.Type
 	r.fieldMap["quota"] = r.Quota
@@ -106,18 +126,110 @@ func (r *resourceLong) fillFieldMap() {
 	r.fieldMap["used"] = r.Used
 	r.fieldMap["daily"] = r.Daily
 	r.fieldMap["last_at"] = r.LastAt
+
 }

 func (r resourceLong) clone(db *gorm.DB) resourceLong {
 	r.resourceLongDo.ReplaceConnPool(db.Statement.ConnPool)
+	r.Sku.db = db.Session(&gorm.Session{Initialized: true})
+	r.Sku.db.Statement.ConnPool = db.Statement.ConnPool
 	return r
 }

 func (r resourceLong) replaceDB(db *gorm.DB) resourceLong {
 	r.resourceLongDo.ReplaceDB(db)
+	r.Sku.db = db.Session(&gorm.Session{})
 	return r
 }

+type resourceLongHasOneSku struct {
+	db *gorm.DB
+
+	field.RelationField
+
+	Product struct {
+		field.RelationField
+	}
+	Discount struct {
+		field.RelationField
+	}
+}
+
+func (a resourceLongHasOneSku) Where(conds ...field.Expr) *resourceLongHasOneSku {
+	if len(conds) == 0 {
+		return &a
+	}
+
+	exprs := make([]clause.Expression, 0, len(conds))
+	for _, cond := range conds {
+		exprs = append(exprs, cond.BeCond().(clause.Expression))
+	}
+	a.db = a.db.Clauses(clause.Where{Exprs: exprs})
+	return &a
+}
+
+func (a resourceLongHasOneSku) WithContext(ctx context.Context) *resourceLongHasOneSku {
+	a.db = a.db.WithContext(ctx)
+	return &a
+}
+
+func (a resourceLongHasOneSku) Session(session *gorm.Session) *resourceLongHasOneSku {
+	a.db = a.db.Session(session)
+	return &a
+}
+
+func (a resourceLongHasOneSku) Model(m *models.ResourceLong) *resourceLongHasOneSkuTx {
+	return &resourceLongHasOneSkuTx{a.db.Model(m).Association(a.Name())}
+}
+
+func (a resourceLongHasOneSku) Unscoped() *resourceLongHasOneSku {
+	a.db = a.db.Unscoped()
+	return &a
+}
+
+type resourceLongHasOneSkuTx struct{ tx *gorm.Association }
+
+func (a resourceLongHasOneSkuTx) Find() (result *models.ProductSku, err error) {
+	return result, a.tx.Find(&result)
+}
+
+func (a resourceLongHasOneSkuTx) Append(values ...*models.ProductSku) (err error) {
+	targetValues := make([]interface{}, len(values))
+	for i, v := range values {
+		targetValues[i] = v
+	}
+	return a.tx.Append(targetValues...)
+}
+
+func (a resourceLongHasOneSkuTx) Replace(values ...*models.ProductSku) (err error) {
+	targetValues := make([]interface{}, len(values))
+	for i, v := range values {
+		targetValues[i] = v
+	}
+	return a.tx.Replace(targetValues...)
+}
+
+func (a resourceLongHasOneSkuTx) Delete(values ...*models.ProductSku) (err error) {
+	targetValues := make([]interface{}, len(values))
+	for i, v := range values {
+		targetValues[i] = v
+	}
+	return a.tx.Delete(targetValues...)
+}
+
+func (a resourceLongHasOneSkuTx) Clear() error {
+	return a.tx.Clear()
+}
+
+func (a resourceLongHasOneSkuTx) Count() int64 {
+	return a.tx.Count()
+}
+
+func (a resourceLongHasOneSkuTx) Unscoped() *resourceLongHasOneSkuTx {
+	a.tx = a.tx.Unscoped()
+	return &a
+}
+
 type resourceLongDo struct{ gen.DO }

 func (r resourceLongDo) Debug() *resourceLongDo {
--- a/web/queries/resource_short.gen.go
+++ b/web/queries/resource_short.gen.go
@@ -29,6 +29,7 @@ func newResourceShort(db *gorm.DB, opts ...gen.DOOption) resourceShort {
 	_resourceShort.ALL = field.NewAsterisk(tableName)
 	_resourceShort.ID = field.NewInt32(tableName, "id")
 	_resourceShort.ResourceID = field.NewInt32(tableName, "resource_id")
+	_resourceShort.Code = field.NewString(tableName, "code")
 	_resourceShort.Live = field.NewInt32(tableName, "live")
 	_resourceShort.Type = field.NewInt(tableName, "type")
 	_resourceShort.Quota = field.NewInt32(tableName, "quota")
@@ -36,6 +37,21 @@ func newResourceShort(db *gorm.DB, opts ...gen.DOOption) resourceShort {
 	_resourceShort.Used = field.NewInt32(tableName, "used")
 	_resourceShort.Daily = field.NewInt32(tableName, "daily")
 	_resourceShort.LastAt = field.NewTime(tableName, "last_at")
+	_resourceShort.Sku = resourceShortHasOneSku{
+		db: db.Session(&gorm.Session{}),
+
+		RelationField: field.NewRelation("Sku", "models.ProductSku"),
+		Product: struct {
+			field.RelationField
+		}{
+			RelationField: field.NewRelation("Sku.Product", "models.Product"),
+		},
+		Discount: struct {
+			field.RelationField
+		}{
+			RelationField: field.NewRelation("Sku.Discount", "models.ProductDiscount"),
+		},
+	}

 	_resourceShort.fillFieldMap()

@@ -48,6 +64,7 @@ type resourceShort struct {
 	ALL        field.Asterisk
 	ID         field.Int32
 	ResourceID field.Int32
+	Code       field.String
 	Live       field.Int32
 	Type       field.Int
 	Quota      field.Int32
@@ -55,6 +72,7 @@ type resourceShort struct {
 	Used       field.Int32
 	Daily      field.Int32
 	LastAt     field.Time
+	Sku        resourceShortHasOneSku

 	fieldMap map[string]field.Expr
 }
@@ -73,6 +91,7 @@ func (r *resourceShort) updateTableName(table string) *resourceShort {
 	r.ALL = field.NewAsterisk(table)
 	r.ID = field.NewInt32(table, "id")
 	r.ResourceID = field.NewInt32(table, "resource_id")
+	r.Code = field.NewString(table, "code")
 	r.Live = field.NewInt32(table, "live")
 	r.Type = field.NewInt(table, "type")
 	r.Quota = field.NewInt32(table, "quota")
@@ -96,9 +115,10 @@ func (r *resourceShort) GetFieldByName(fieldName string) (field.OrderExpr, bool)
 }

 func (r *resourceShort) fillFieldMap() {
-	r.fieldMap = make(map[string]field.Expr, 9)
+	r.fieldMap = make(map[string]field.Expr, 11)
 	r.fieldMap["id"] = r.ID
 	r.fieldMap["resource_id"] = r.ResourceID
+	r.fieldMap["code"] = r.Code
 	r.fieldMap["live"] = r.Live
 	r.fieldMap["type"] = r.Type
 	r.fieldMap["quota"] = r.Quota
@@ -106,18 +126,110 @@ func (r *resourceShort) fillFieldMap() {
 	r.fieldMap["used"] = r.Used
 	r.fieldMap["daily"] = r.Daily
 	r.fieldMap["last_at"] = r.LastAt
+
 }

 func (r resourceShort) clone(db *gorm.DB) resourceShort {
 	r.resourceShortDo.ReplaceConnPool(db.Statement.ConnPool)
+	r.Sku.db = db.Session(&gorm.Session{Initialized: true})
+	r.Sku.db.Statement.ConnPool = db.Statement.ConnPool
 	return r
 }

 func (r resourceShort) replaceDB(db *gorm.DB) resourceShort {
 	r.resourceShortDo.ReplaceDB(db)
+	r.Sku.db = db.Session(&gorm.Session{})
 	return r
 }

+type resourceShortHasOneSku struct {
+	db *gorm.DB
+
+	field.RelationField
+
+	Product struct {
+		field.RelationField
+	}
+	Discount struct {
+		field.RelationField
+	}
+}
+
+func (a resourceShortHasOneSku) Where(conds ...field.Expr) *resourceShortHasOneSku {
+	if len(conds) == 0 {
+		return &a
+	}
+
+	exprs := make([]clause.Expression, 0, len(conds))
+	for _, cond := range conds {
+		exprs = append(exprs, cond.BeCond().(clause.Expression))
+	}
+	a.db = a.db.Clauses(clause.Where{Exprs: exprs})
+	return &a
+}
+
+func (a resourceShortHasOneSku) WithContext(ctx context.Context) *resourceShortHasOneSku {
+	a.db = a.db.WithContext(ctx)
+	return &a
+}
+
+func (a resourceShortHasOneSku) Session(session *gorm.Session) *resourceShortHasOneSku {
+	a.db = a.db.Session(session)
+	return &a
+}
+
+func (a resourceShortHasOneSku) Model(m *models.ResourceShort) *resourceShortHasOneSkuTx {
+	return &resourceShortHasOneSkuTx{a.db.Model(m).Association(a.Name())}
+}
+
+func (a resourceShortHasOneSku) Unscoped() *resourceShortHasOneSku {
+	a.db = a.db.Unscoped()
+	return &a
+}
+
+type resourceShortHasOneSkuTx struct{ tx *gorm.Association }
+
+func (a resourceShortHasOneSkuTx) Find() (result *models.ProductSku, err error) {
+	return result, a.tx.Find(&result)
+}
+
+func (a resourceShortHasOneSkuTx) Append(values ...*models.ProductSku) (err error) {
+	targetValues := make([]interface{}, len(values))
+	for i, v := range values {
+		targetValues[i] = v
+	}
+	return a.tx.Append(targetValues...)
+}
+
+func (a resourceShortHasOneSkuTx) Replace(values ...*models.ProductSku) (err error) {
+	targetValues := make([]interface{}, len(values))
+	for i, v := range values {
+		targetValues[i] = v
+	}
+	return a.tx.Replace(targetValues...)
+}
+
+func (a resourceShortHasOneSkuTx) Delete(values ...*models.ProductSku) (err error) {
+	targetValues := make([]interface{}, len(values))
+	for i, v := range values {
+		targetValues[i] = v
+	}
+	return a.tx.Delete(targetValues...)
+}
+
+func (a resourceShortHasOneSkuTx) Clear() error {
+	return a.tx.Clear()
+}
+
+func (a resourceShortHasOneSkuTx) Count() int64 {
+	return a.tx.Count()
+}
+
+func (a resourceShortHasOneSkuTx) Unscoped() *resourceShortHasOneSkuTx {
+	a.tx = a.tx.Unscoped()
+	return &a
+}
+
 type resourceShortDo struct{ gen.DO }

 func (r resourceShortDo) Debug() *resourceShortDo {
--- a/web/routes.go
+++ b/web/routes.go
@@ -162,5 +162,11 @@ func adminRouter(api fiber.Router) {
 	product.Post("/sku/page", handlers.PageProductSkuByAdmin)
 	product.Post("/sku/create", handlers.CreateProductSku)
 	product.Post("/sku/update", handlers.UpdateProductSku)
+	product.Post("/sku/update/discount/batch", handlers.BatchUpdateProductSkuDiscount)
 	product.Post("/sku/remove", handlers.DeleteProductSku)
+	product.Post("/discount/page", handlers.PageProductDiscountByAdmin)
+	product.Post("/discount/all", handlers.AllProductDiscountsByAdmin)
+	product.Post("/discount/create", handlers.CreateProductDiscount)
+	product.Post("/discount/update", handlers.UpdateProductDiscount)
+	product.Post("/discount/remove", handlers.DeleteProductDiscount)
 }
--- a/web/services/product_discount.go
+++ b/web/services/product_discount.go
@@ -0,0 +1,59 @@
+package services
+
+import (
+	"platform/web/core"
+	m "platform/web/models"
+	q "platform/web/queries"
+	"time"
+
+	"gorm.io/gen/field"
+)
+
+var ProductDiscount = &productDiscountService{}
+
+type productDiscountService struct{}
+
+func (s *productDiscountService) All() (result []*m.ProductDiscount, err error) {
+	return q.ProductDiscount.Find()
+}
+
+func (s *productDiscountService) Page(req *core.PageReq) (result []*m.ProductDiscount, count int64, err error) {
+	return q.ProductDiscount.FindByPage(req.GetOffset(), req.GetLimit())
+}
+
+func (s *productDiscountService) Create(data CreateProductDiscountData) (err error) {
+	return q.ProductDiscount.Create(&m.ProductDiscount{
+		Name:     data.Name,
+		Discount: data.Discount,
+	})
+}
+
+type CreateProductDiscountData struct {
+	Name     string `json:"name"`
+	Discount int32  `json:"discount" validate:"min=0,max=100"`
+}
+
+func (s *productDiscountService) Update(data UpdateProductDiscountData) (err error) {
+	do := make([]field.AssignExpr, 0)
+
+	if data.Name != nil {
+		do = append(do, q.ProductDiscount.Name.Value(*data.Name))
+	}
+	if data.Discount != nil {
+		do = append(do, q.ProductDiscount.Discount.Value(*data.Discount))
+	}
+
+	_, err = q.ProductDiscount.Where(q.ProductDiscount.ID.Eq(data.ID)).UpdateSimple(do...)
+	return err
+}
+
+type UpdateProductDiscountData struct {
+	ID       int32   `json:"id"`
+	Name     *string `json:"name"`
+	Discount *int32  `json:"discount" validate:"omitempty,min=0,max=100"`
+}
+
+func (s *productDiscountService) Delete(id int32) (err error) {
+	_, err = q.ProductDiscount.Where(q.ProductDiscount.ID.Eq(id)).UpdateColumn(q.ProductDiscount.DeletedAt, time.Now())
+	return
+}
--- a/web/services/product_sku.go
+++ b/web/services/product_sku.go
@@ -21,6 +21,7 @@ func (s *productSkuService) Page(req *core.PageReq, productId *int32) (result []
 		do = append(do, q.ProductSku.ProductID.Eq(*productId))
 	}
 	return q.ProductSku.
+		Joins(q.ProductSku.Discount).
 		Where(do...).
 		FindByPage(req.GetOffset(), req.GetLimit())
 }
@@ -32,20 +33,20 @@ func (s *productSkuService) Create(create CreateProductSkuData) (err error) {
 	}

 	return q.ProductSku.Create(&m.ProductSku{
-		ProductID: create.ProductID,
-		Code:      create.Code,
-		Name:      create.Name,
-		Price:     price,
-		Discount:  create.Discount,
+		ProductID:  create.ProductID,
+		DiscountId: create.DiscountID,
+		Code:       create.Code,
+		Name:       create.Name,
+		Price:      price,
 	})
 }

 type CreateProductSkuData struct {
-	ProductID int32   `json:"product_id"`
-	Code      string  `json:"code"`
-	Name      string  `json:"name"`
-	Price     string  `json:"price"`
-	Discount  float32 `json:"discount"`
+	ProductID  int32  `json:"product_id"`
+	DiscountID int32  `json:"discount_id"`
+	Code       string `json:"code"`
+	Name       string `json:"name"`
+	Price      string `json:"price"`
 }

 func (s *productSkuService) Update(update UpdateProductSkuData) (err error) {
@@ -58,8 +59,8 @@ func (s *productSkuService) Update(update UpdateProductSkuData) (err error) {
 		}
 		do = append(do, q.ProductSku.Price.Value(price))
 	}
-	if update.Discount != nil {
-		do = append(do, q.ProductSku.Discount.Value(*update.Discount))
+	if update.DiscountID != nil {
+		do = append(do, q.ProductSku.DiscountId.Value(*update.DiscountID))
 	}
 	if update.Code != nil {
 		do = append(do, q.ProductSku.Code.Value(*update.Code))
@@ -73,14 +74,26 @@ func (s *productSkuService) Update(update UpdateProductSkuData) (err error) {
 }

 type UpdateProductSkuData struct {
-	ID       int32    `json:"id"`
-	Code     *string  `json:"code"`
-	Name     *string  `json:"name"`
-	Price    *string  `json:"price"`
-	Discount *float32 `json:"discount"`
+	ID         int32   `json:"id"`
+	DiscountID *int32  `json:"discount_id"`
+	Code       *string `json:"code"`
+	Name       *string `json:"name"`
+	Price      *string `json:"price"`
 }

 func (s *productSkuService) Delete(id int32) (err error) {
 	_, err = q.ProductSku.Where(q.ProductSku.ID.Eq(id)).UpdateColumn(q.ProductSku.DeletedAt, time.Now())
 	return
 }
+
+func (s *productSkuService) BatchUpdateDiscount(data BatchUpdateSkuDiscountData) (err error) {
+	_, err = q.ProductSku.Where(q.ProductSku.ProductID.Eq(data.ProductID)).UpdateSimple(
+		q.ProductSku.DiscountId.Value(data.DiscountID),
+	)
+	return
+}
+
+type BatchUpdateSkuDiscountData struct {
+	ProductID  int32 `json:"product_id"`
+	DiscountID int32 `json:"discount_id"`
+}
--- a/web/services/resource.go
+++ b/web/services/resource.go
@@ -107,6 +107,7 @@ func createResource(q *q.Query, uid int32, now time.Time, data *CreateResourceDa
 		ResourceNo: u.P(ID.GenReadable("res")),
 		Active:     true,
 		Type:       data.Type,
+		Code:       data.Type.Code(),
 	}
 	switch data.Type {

@@ -120,6 +121,7 @@ func createResource(q *q.Query, uid int32, now time.Time, data *CreateResourceDa
 			Live:  short.Live,
 			Type:  short.Mode,
 			Quota: short.Quota,
+			Code:  data.Code(),
 		}
 		if short.Mode == m.ResourceModeTime {
 			if short.Expire == nil {
@@ -139,6 +141,7 @@ func createResource(q *q.Query, uid int32, now time.Time, data *CreateResourceDa
 			Live:  long.Live,
 			Type:  long.Mode,
 			Quota: long.Quota,
+			Code:  data.Code(),
 		}
 		if long.Mode == m.ResourceModeTime {
 			if long.Expire == nil {
@@ -160,11 +163,18 @@ func createResource(q *q.Query, uid int32, now time.Time, data *CreateResourceDa
 }

 func (s *resourceService) GetSku(data *CreateResourceData) (*m.ProductSku, error) {
-	sku, err := q.ProductSku.Where(q.ProductSku.Code.Eq(data.Code())).Take()
+	sku, err := q.ProductSku.
+		Joins(q.ProductSku.Discount).
+		Where(q.ProductSku.Code.Eq(data.Code())).
+		Take()
 	if err != nil {
 		return nil, core.NewServErr("产品不可用", err)
 	}

+	if sku.Discount == nil {
+		return nil, core.NewServErr("价格查询失败", err)
+	}
+
 	return sku, nil
 }

@@ -174,28 +184,30 @@ func (s *resourceService) GetPrice(sku *m.ProductSku, count int32, uid *int32) (
 	var uSku *m.ProductSkuUser
 	if uid != nil {
 		var err error
-		uSku, err = q.ProductSkuUser.Where(
-			q.ProductSkuUser.UserID.Eq(*uid),
-			q.ProductSkuUser.ProductSkuID.Eq(sku.ID),
-		).Take()
+		uSku, err = q.ProductSkuUser.
+			Joins(q.ProductSkuUser.Discount).
+			Where(
+				q.ProductSkuUser.UserID.Eq(*uid),
+				q.ProductSkuUser.ProductSkuID.Eq(sku.ID)).
+			Take()
 		if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
 			return decimal.Zero, decimal.Zero, core.NewServErr("客户特殊价查询失败", err)
 		}
 	}

-	// 返回计算价格
-	price := sku.Price
-	if uSku != nil && uSku.Price != nil {
-		price = *uSku.Price
+	if uSku.Discount == nil {
+		return decimal.Decimal{}, decimal.Decimal{}, core.NewServErr("价格获取失败")
 	}

-	discount := sku.Discount
-	if uSku != nil && uSku.Discount != nil {
-		discount = *uSku.Discount
+	// 返回计算价格
+	price := sku.Price
+	discount := sku.Discount.Decimal()
+	if uSku != nil {
+		discount = uSku.Discount.Decimal()
 	}

 	before := price.Mul(decimal.NewFromInt32(count))
-	after := before.Mul(decimal.NewFromFloat32(discount))
+	after := before.Mul(discount)
 	return before, after, nil
 }