title: bulk create using ListSerializer of Django Rest Framework
body: <p>Iam trying to bulk create rows for a certain table using Django Rest Framework. I see in the <a href="http://www.django-rest-framework.org/api-guide/serializers/#customizing-multiple-create" rel="nofollow noreferrer">documentation</a> that DRF supports it.</p>
  
  <p>views.py</p>
  
  <pre><code>class UserProfileFeedViewSet(viewsets.ModelViewSet):
      """Handles creating, reading and updating profile feed items."""
  
      authentication_classes = (TokenAuthentication,)
      queryset = models.ProfileFeedItem.objects.all()
      serializer_class = serializers.ProfileFeedItemSerializer(queryset, many=True)
      permission_classes = (permissions.PostOwnStatus, IsAuthenticated)
  
      def perform_create(self, serializer):
          """Sets the user profile to the logged in user."""
  
          serializer.save(user_profile=self.request.user)
  </code></pre>
  
  <p>serializers.py</p>
  
  <pre><code>class ProfileFeedItemListSerializer(serializers.ListSerializer):
     def create(self,validated_data):
         feed_list = [ProfileFeedItem(**item) for item in validated_data]
         return ProfileFeedItem.objects.bulk_create(feed_list)
  
  class ProfileFeedItemSerializer(serializers.ModelSerializer):
      """A serializer for profile feed items."""
  
      class Meta:
          model = models.ProfileFeedItem
          list_serializer_class = ProfileFeedItemListSerializer
          fields = ('id', 'user_profile', 'status_text', 'created_on')
          extra_kwargs = {'user_profile': {'read_only': True}}
  </code></pre>
  
  <p>When i try posting using admin form i always get this error. Can you please help me identify what am i doing wrong here ?</p>
  
  <blockquote>
    <p>TypeError at /api/feed/ 'ProfileFeedItemListSerializer' object is not
    callable Request Method:  GET Request
    URL:  <a href="http://127.0.0.1:8080/api/feed/" rel="nofollow noreferrer">http://127.0.0.1:8080/api/feed/</a> Django Version: 1.11 Exception
    Type: TypeError Exception Value:   'ProfileFeedItemListSerializer'
    object is not callable Exception
    Location: /home/ubuntu/.virtualenvs/profiles_api/local/lib/python3.5/site-packages/rest_framework/generics.py
    in get_serializer, line 111 Python
    Executable:   /home/ubuntu/.virtualenvs/profiles_api/bin/python Python
    Version:  3.5.2</p>
  </blockquote>