add category filed to product varient serializer

backend/order/serializers.py

@@ -10,10 +10,10 @@ class ProductVariantSerialzier(serializers.ModelSerializer):
     discount_amount = serializers.SerializerMethodField()
     title = serializers.SerializerMethodField()
     price = serializers.CharField()
-
+    category = serializers.SerializerMethodField()
     class Meta:
         model = ProductVariant
-        fields = ['title', 'product_attributes', 'in_stock', 'price', 'discount', 'color', 'image', 'discount_amount']
+        fields = ['title', 'product_attributes', 'in_stock', 'price', 'discount', 'color', 'image', 'discount_amount', 'category']
 
     def get_discount_amount(self, obj):
         discount_amount  = int(obj.price * (obj.discount / 100))
@@ -25,6 +25,10 @@ class ProductVariantSerialzier(serializers.ModelSerializer):
     def get_title(self, obj):
         return obj.product.name
 
+    def get_category(self, obj):
+        return obj.product.category.name
+
+
 class DiscountCodeSerializer(serializers.ModelSerializer):
     class Meta:
         model = DiscountCode
@@ -83,9 +87,11 @@ class CartSerializer(serializers.ModelSerializer):
 class OrderSerializer(serializers.ModelSerializer):
     count =  serializers.SerializerMethodField()
     images =  serializers.SerializerMethodField()
+    address = UserAddressSerializer()
+    items = OrderItemSerailzier(many=True)
     class Meta:
         model = OrderModel
-        fields = ['address', 'created_at', 'is_paid', 'status', 'discount_code', "images", "count", "id"]
+        fields = ['address', 'created_at', 'items', 'status', 'discount_code', "images", "count", "id"]
 
     def get_count(self, obj):
         return obj.items.all().count()