新增添加购物车接口

model/gmodel/fs_shopping_cart_gen.go

@@ -8,6 +8,7 @@ import (
 // fs_shopping_cart 新版购物车表
 type FsShoppingCart struct {
 	Id                 int64      `gorm:"primary_key;default:0;auto_increment;" json:"id"` // id
+	UserId             *int64     `gorm:"default:0;" json:"user_id"`                       // 用户id
 	ProductId          *int64     `gorm:"default:0;" json:"product_id"`                    // 产品id
 	TemplateId         *int64     `gorm:"default:0;" json:"template_id"`                   // 模板id
 	ModelId            *int64     `gorm:"default:0;" json:"model_id"`                      // 模型id

server/shopping-cart/internal/logic/addtocartlogic.go

@@ -1,8 +1,10 @@
 package logic
 
 import (
+	"errors"
 	"fusenapi/utils/auth"
 	"fusenapi/utils/basic"
+	"gorm.io/gorm"
 
 	"context"
 
@@ -31,12 +33,83 @@ func NewAddToCartLogic(ctx context.Context, svcCtx *svc.ServiceContext) *AddToCa
 // }
 
 func (l *AddToCartLogic) AddToCart(req *types.AddToCartReq, userinfo *auth.UserInfo) (resp *basic.Response) {
-	// 返回值必须调用Set重新返回, resp可以空指针调用 resp.SetStatus(basic.CodeOK, data)
-	// userinfo 传入值时, 一定不为null
-
+	if !userinfo.IsUser() {
+		return resp.SetStatusWithMessage(basic.CodeUnAuth, "please sign in before add to shopping cart")
+	}
+	//校验参数
+	if err := l.AddToCartParamVerify(req); err != nil {
+		return resp.SetStatusWithMessage(basic.CodeRequestParamsErr, err.Error())
+	}
+	//获取产品信息
+	productInfo, err := l.svcCtx.AllModels.FsProduct.FindOne(l.ctx, req.ProductId)
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return resp.SetStatusWithMessage(basic.CodeDbRecordNotFoundErr, "the product is not exists")
+		}
+		logx.Error("获取产品信息错误:", err)
+		return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get product info")
+	}
+	//获取模板信息
+	templateInfo, err := l.svcCtx.AllModels.FsProductTemplateV2.FindOne(l.ctx, req.TemplateId)
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return resp.SetStatusWithMessage(basic.CodeDbRecordNotFoundErr, "the template is not exists")
+		}
+		logx.Error("获取模板信息错误:", err)
+		return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get template info")
+	}
+	if *templateInfo.IsDel == 1 {
+		return resp.SetStatusWithMessage(basic.CodeServiceErr, "the template is deleted")
+	}
+	if *templateInfo.Status != 1 {
+		return resp.SetStatusWithMessage(basic.CodeServiceErr, "the template`s status is unNormal")
+	}
+	//获取模型信息
+	modelInfo, err := l.svcCtx.AllModels.FsProductModel3d.FindOne(l.ctx, *templateInfo.ModelId)
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return resp.SetStatusWithMessage(basic.CodeDbRecordNotFoundErr, "the template`s model is not exists")
+		}
+		logx.Error("获取模型信息错误:", err)
+		return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get template`s model info")
+	}
+	//模型里面的size_id是否跟传入的size_id匹配
+	if req.SizeId != *modelInfo.SizeId {
+		return resp.SetStatusWithMessage(basic.CodeRequestParamsErr, "param size_id is not match  model`s size_id")
+	}
+	//获取尺寸信息
+	sizeInfo, err := l.svcCtx.AllModels.FsProductSize.FindOne(l.ctx, req.SizeId)
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return resp.SetStatusWithMessage(basic.CodeRequestParamsErr, "the size is not exists")
+		}
+		logx.Error("获取尺寸信息错误:", err)
+		return resp.SetStatusWithMessage(basic.CodeRequestParamsErr, "failed to get size info")
+	}
+	//状态
+	if *sizeInfo.Status != 1 {
+		return resp.SetStatusWithMessage(basic.CodeRequestParamsErr, "size info status is not normal")
+	}
 	return resp.SetStatus(basic.CodeOK)
 }
 
+// 参数校验
+func (l *AddToCartLogic) AddToCartParamVerify(req *types.AddToCartReq) error {
+	if req.ProductId <= 0 {
+		return errors.New("invalid param:product_id")
+	}
+	if req.SizeId <= 0 {
+		return errors.New("invalid param:size_id")
+	}
+	if req.TemplateId <= 0 {
+		return errors.New("invalid param:template_id")
+	}
+	if req.PurchaseQuantity <= 0 {
+		return errors.New("invalid param:purchase_quantity")
+	}
+	return nil
+}
+
 // 处理逻辑后 w,r 如:重定向, resp 必须重新处理
 // func (l *AddToCartLogic) AfterLogic(w http.ResponseWriter, r *http.Request, resp *basic.Response) {
 // // httpx.OkJsonCtx(r.Context(), w, resp)