product variant

src/modules/category/category.service.ts

@@ -127,17 +127,20 @@ class CategoryService {
     createDto.title_en = slugify(createDto.title_en);
 
     const existTitle = await this.categoryRepository.findByTitle(createDto.title_en);
-
-    const theme = await this.themeRepo.findById(createDto.themeId);
-    if (!theme) throw new BadRequestError(CommonMessage.NotFoundById);
-
     if (existTitle) throw new BadRequestError(CategoryMessage.DuplicateTitle);
+
+    let themeIdOrNull: any = null;
+    if (createDto.themeId) {
+      const themeDoc = await this.themeRepo.findById(createDto.themeId);
+      if (!themeDoc) throw new BadRequestError(CommonMessage.NotFoundById);
+      themeIdOrNull = themeDoc._id;
+    }
     //if parent exist first set parent leaf false
     if (createDto.parent) {
       await this.categoryRepository.model.findByIdAndUpdate(createDto.parent, { leaf: false });
     }
     //we set the leaf to true
-    const category = await this.categoryRepository.model.create({ ...createDto, theme: theme._id });
+    const category = await this.categoryRepository.model.create({ ...createDto, theme: themeIdOrNull });
 
     return {
       message: CategoryMessage.Created,

src/modules/product/providers/product.service.ts

@@ -564,14 +564,14 @@ class ProductService {
       // Check if a variant with the same themeValue already exists
       // const query: FilterQuery<IProductVariant> = { product: product._id };
 
-      // if (addVariantDto.themeValueId) {
-      //   const existingVariant = await this.productVariantRepo.model.findOne({
-      //     product: product._id,
-      //     themeValue: addVariantDto.themeValueId,
-      //   });
+      if (addVariantDto.themeValueId) {
+        const existingVariant = await this.productVariantRepo.model.findOne({
+          product: product._id,
+          themeValue: addVariantDto.themeValueId,
+        });
 
-      //   if (existingVariant) throw new BadRequestError(ProductMessage.VariantAlreadyExists);
-      // }
+        if (existingVariant) throw new BadRequestError(ProductMessage.VariantAlreadyExists);
+      }
 
       const productVariant = await this.createProductVariant(addVariantDto, product._id, shop._id.toString(), session);