Django Rest Framework : Nested Serializer not working

Question

I have almost tried everything but am not able to reach at the point

model.py file

class RecievingImages(models.Model):
     """Original and Masked Images"""
    ....
    name                        = models.CharField(max_length = 100, unique = True, primary_key=True)
    area                        = models.IntegerField()
    number                      = models.IntegerField()
    agency_name                 = models.CharField(max_length=100, default='general')
    rawImage                    = models.ImageField(upload_to=imageNameForRawImage,)
    ...

class UpdationImages(models.Model):
    """ Update Image wrt name"""
    ....
    name                        = models.ForeignKey(RecievingImages, on_delete=models.PROTECT, related_name='updated')
    updated_image               = models.ImageField(upload_to=UpdatedImageFolder,)
    updated_image_url           = models.TextField(default='None')
   ....

serializer.py

class UpdatedImageSerializer(serializers.ModelSerializer):
  class Meta:
    model = UpdationImages
    fields = ('name', 'updated_image', 'updated_image_url')

class RecievingImagesSerializer(serializers.ModelSerializer):
  updated = UpdatedImageSerializer(many= True, read_only=True)
  class Meta:
    model = RecievingImages
    fields = ('updated','name','area','number','agency_name', rawImage)

I have used related_name in the model and also following the documentation along with that with many = True

But still in serializer.data updated does not show

views.py

class MappingSinglePhoto(APIView):
    """ Mapping Single Image """
    def post(self, request):
        try:
            data = request.data
            # import pdb; pdb.set_trace()
            name_of_image = data['name']
            mapped_images_qs = UpdationImages.objects.select_related('name').filter(name = name_of_image)
            for image in mapped_images_qs:
                serializer = RecievingImagesSerializer(instance = image)
                pdb.set_trace()
                serializer.data
            # return Response(serializer.data)
        except Exception as e:
            print(e)

NOTE if I use depth=1 then it's working fine, but I am not looking for all the fields that depth displays.

Thanks & Regards

Answer 1

Thanks to @ArakkalAbu

There was a problem in query views.py

class MappingSinglePhoto(APIView):
    """ Mapping Single Image """
    def post(self, request):
        try:
            data = request.data
            # import pdb; pdb.set_trace()
            name_of_image = data['name']
            mapped_images_qs = RecievingImages.objects.filter(name = name_of_image)
            for image in mapped_images_qs:
                serializer = RecievingImagesSerializer(instance = image)
                pdb.set_trace()
                serializer.data
            # return Response(serializer.data)
        except Exception as e:
            print(e)