add f

internal/domains/product/services/product_management_service.go

@@ -18,21 +18,24 @@ import (
 // ProductManagementService 产品管理领域服务
 // 负责产品的基本管理操作，包括创建、查询、更新等
 type ProductManagementService struct {
-	productRepo  repositories.ProductRepository
-	categoryRepo repositories.ProductCategoryRepository
-	logger       *zap.Logger
+	productRepo     repositories.ProductRepository
+	categoryRepo    repositories.ProductCategoryRepository
+	subCategoryRepo repositories.ProductSubCategoryRepository
+	logger          *zap.Logger
 }
 
 // NewProductManagementService 创建产品管理领域服务
 func NewProductManagementService(
 	productRepo repositories.ProductRepository,
 	categoryRepo repositories.ProductCategoryRepository,
+	subCategoryRepo repositories.ProductSubCategoryRepository,
 	logger *zap.Logger,
 ) *ProductManagementService {
 	return &ProductManagementService{
-		productRepo:  productRepo,
-		categoryRepo: categoryRepo,
-		logger:       logger,
+		productRepo:     productRepo,
+		categoryRepo:    categoryRepo,
+		subCategoryRepo: subCategoryRepo,
+		logger:          logger,
 	}
 }
 
@@ -306,6 +309,21 @@ func (s *ProductManagementService) ValidateProduct(product *entities.Product) er
 		}
 	}
 
+	// 验证二级分类是否存在（如果设置了二级分类）
+	if product.SubCategoryID != nil && *product.SubCategoryID != "" {
+		subCategory, err := s.subCategoryRepo.GetByID(context.Background(), *product.SubCategoryID)
+		if err != nil {
+			return fmt.Errorf("产品二级分类不存在: %w", err)
+		}
+		if !subCategory.IsValid() {
+			return errors.New("产品二级分类已禁用或删除")
+		}
+		// 验证二级分类是否属于指定的一级分类
+		if subCategory.CategoryID != product.CategoryID {
+			return errors.New("二级分类不属于指定的一级分类")
+		}
+	}
+
 	return nil
 }