Djngo REST API: KeyError at /api/update

[roopeshm456]

i was trying to perform bulk update using django-bulk-update

**https://github.com/aykut/django-bulk-update**

But it throws KeyError at /api/update 'id'

views

class CartUpdatesView(ListBulkCreateUpdateDestroyAPIView):
    queryset=models.Cart.objects.all()
    serializer_class=serializers.CartUpdatesSerializer

serializers

class CartUpdatesSerializer(BulkSerializerMixin,serializers.ModelSerializer):
       
        class Meta(object):
             model  = models.Cart 
             fields = '__all__'
             list_serializer_class=BulkListSerializer

models

class Cart(models.Model): 
    cart_id=models.AutoField(primary_key=True)
    product_qty=models.IntegerField()
    customer_id=models.IntegerField()    
 product_id=models.ForeignKey('Products',db_column='product_id',on_delete=models.CASCADE)

Does this happens because of 2 primary keys while joiing tables?. I dont have any idea on bulk update. By searching I figure out official doc provide only very little information on bulk update and everyone refers to use this package.

GET

HTTP 200 OK
Allow: GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

[
    {
        "cart_id": 1,
        "product_qty": 4,
        "customer_id": 1,
        "product_id": 1
    }
]

PUT

[
    {
        "cart_id": 1,
        "product_qty": 9,
        "customer_id": 1,
        "product_id": 1
    }
]

Traceback

Environment:


Request Method: PUT
Request URL: http://localhost:8000/api/update

Django Version: 2.2.5
Python Version: 3.6.4
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'shoppingcart',
 'rest_framework',
 'rest_framework.authtoken']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware']



Traceback:

File "C:\Users\user\AppData\Local\Programs\Python\Python36\lib\site-packages\django\core\handlers\exception.py" in inner
  34.             response = get_response(request)

File "C:\Users\user\AppData\Local\Programs\Python\Python36\lib\site-packages\django\core\handlers\base.py" in _get_response
  115.                 response = self.process_exception_by_middleware(e, request)

File "C:\Users\user\AppData\Local\Programs\Python\Python36\lib\site-packages\django\core\handlers\base.py" in _get_response
  113.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "C:\Users\user\AppData\Local\Programs\Python\Python36\lib\site-packages\django\views\decorators\csrf.py" in wrapped_view
  54.         return view_func(*args, **kwargs)

File "C:\Users\user\AppData\Local\Programs\Python\Python36\lib\site-packages\django\views\generic\base.py" in view
  71.             return self.dispatch(request, *args, **kwargs)

File "C:\Users\user\AppData\Local\Programs\Python\Python36\lib\site-packages\rest_framework\views.py" in dispatch
  505.             response = self.handle_exception(exc)

File "C:\Users\user\AppData\Local\Programs\Python\Python36\lib\site-packages\rest_framework\views.py" in handle_exception
  465.             self.raise_uncaught_exception(exc)

File "C:\Users\user\AppData\Local\Programs\Python\Python36\lib\site-packages\rest_framework\views.py" in raise_uncaught_exception
  476.         raise exc

File "C:\Users\user\AppData\Local\Programs\Python\Python36\lib\site-packages\rest_framework\views.py" in dispatch
  502.             response = handler(request, *args, **kwargs)

File "C:\Users\user\AppData\Local\Programs\Python\Python36\lib\site-packages\rest_framework_bulk\generics.py" in put
  140.         return self.bulk_update(request, *args, **kwargs)

File "C:\Users\user\AppData\Local\Programs\Python\Python36\lib\site-packages\rest_framework_bulk\drf3\mixins.py" in bulk_update
  73.         serializer.is_valid(raise_exception=True)

File "C:\Users\user\AppData\Local\Programs\Python\Python36\lib\site-packages\rest_framework\serializers.py" in is_valid
  737.                 self._validated_data = self.run_validation(self.initial_data)

File "C:\Users\user\AppData\Local\Programs\Python\Python36\lib\site-packages\rest_framework\serializers.py" in run_validation
  618.         value = self.to_internal_value(data)

File "C:\Users\user\AppData\Local\Programs\Python\Python36\lib\site-packages\rest_framework\serializers.py" in to_internal_value
  654.                 validated = self.child.run_validation(item)

File "C:\Users\user\AppData\Local\Programs\Python\Python36\lib\site-packages\rest_framework\serializers.py" in run_validation
  430.         value = self.to_internal_value(data)

File "C:\Users\user\AppData\Local\Programs\Python\Python36\lib\site-packages\rest_framework_bulk\drf3\serializers.py" in to_internal_value
  27.             id_field = self.fields[id_attr]

File "C:\Users\user\AppData\Local\Programs\Python\Python36\lib\site-packages\rest_framework\utils\serializer_helpers.py" in __getitem__
  148.         return self.fields[key]

Exception Type: KeyError at /api/update
Exception Value: 'id'