some edit on product stat serializer

apps/product/web/api/v1/serializers/product_serializers.py

@@ -35,6 +35,18 @@ class ProductStatsSerializer(serializers.ModelSerializer):
         model = product_models.ProductStats
         fields = '__all__'
 
+    def to_representation(self, instance):
+        """ custom output of product stat """
+
+        representation = super().to_representation(instance)
+
+        representation['product'] = {
+            'id': instance.product.id,
+            'name': instance.product.name
+        }
+
+        return representation
+
 
 class AttributeSerializer(serializers.ModelSerializer):
     """ serialize attributes of reference product """