title: Django Rest Framework - Could not resolve URL for hyperlinked relationship using view name "user-detail"
body: <p>I am building a project in Django Rest Framework where users can login to view their wine cellar.
  My ModelViewSets were working just fine and all of a sudden I get this frustrating error:</p>
  
  <blockquote>
    <p>Could not resolve URL for hyperlinked relationship using view name "user-detail". You may have failed to include the related model in your API, or incorrectly configured the <code>lookup_field</code> attribute on this field.</p>
  </blockquote>
  
  <p>The traceback shows:</p>
  
  <pre><code>    [12/Dec/2013 18:35:29] "GET /bottles/ HTTP/1.1" 500 76677
  Internal Server Error: /bottles/
  Traceback (most recent call last):
    File "/Users/bpipat/.virtualenvs/usertest2/lib/python2.7/site-packages/django/core/handlers/base.py", line 114, in get_response
      response = wrapped_callback(request, *callback_args, **callback_kwargs)
    File "/Users/bpipat/.virtualenvs/usertest2/lib/python2.7/site-packages/rest_framework/viewsets.py", line 78, in view
      return self.dispatch(request, *args, **kwargs)
    File "/Users/bpipat/.virtualenvs/usertest2/lib/python2.7/site-packages/django/views/decorators/csrf.py", line 57, in wrapped_view
      return view_func(*args, **kwargs)
    File "/Users/bpipat/.virtualenvs/usertest2/lib/python2.7/site-packages/rest_framework/views.py", line 399, in dispatch
      response = self.handle_exception(exc)
    File "/Users/bpipat/.virtualenvs/usertest2/lib/python2.7/site-packages/rest_framework/views.py", line 396, in dispatch
      response = handler(request, *args, **kwargs)
    File "/Users/bpipat/.virtualenvs/usertest2/lib/python2.7/site-packages/rest_framework/mixins.py", line 96, in list
      return Response(serializer.data)
    File "/Users/bpipat/.virtualenvs/usertest2/lib/python2.7/site-packages/rest_framework/serializers.py", line 535, in data
      self._data = [self.to_native(item) for item in obj]
    File "/Users/bpipat/.virtualenvs/usertest2/lib/python2.7/site-packages/rest_framework/serializers.py", line 325, in to_native
      value = field.field_to_native(obj, field_name)
    File "/Users/bpipat/.virtualenvs/usertest2/lib/python2.7/site-packages/rest_framework/relations.py", line 153, in field_to_native
      return self.to_native(value)
    File "/Users/bpipat/.virtualenvs/usertest2/lib/python2.7/site-packages/rest_framework/relations.py", line 452, in to_native
      raise Exception(msg % view_name)
  Exception: Could not resolve URL for hyperlinked relationship using view 
  name "user-detail". You may have failed to include the related model in 
  your API, or incorrectly configured the `lookup_field` attribute on this 
  field.
  </code></pre>
  
  <p>I have a custom email user model and the bottle model in models.py is:</p>
  
  <pre><code>class Bottle(models.Model):    
        wine = models.ForeignKey(Wine, null=False)
        user = models.ForeignKey(User, null=False, related_name='bottles')
  </code></pre>
  
  <p>My serializers:</p>
  
  <pre><code>class BottleSerializer(serializers.HyperlinkedModelSerializer):
  
      class Meta:
          model = Bottle
          fields = ('url', 'wine', 'user')
  
  class UserSerializer(serializers.ModelSerializer):
  
      class Meta:
          model = User
          fields = ('email', 'first_name', 'last_name', 'password', 'is_superuser')
  </code></pre>
  
  <p>My views:</p>
  
  <pre><code>class BottleViewSet(viewsets.ModelViewSet):
      """
      API endpoint that allows bottles to be viewed or edited.
      """
      queryset = Bottle.objects.all()
      serializer_class = BottleSerializer
  
  class UserViewSet(ListCreateAPIView):
      """
      API endpoint that allows users to be viewed or edited.
      """
      queryset = User.objects.all()
      serializer_class = UserSerializer
  </code></pre>
  
  <p>and finally the url:</p>
  
  <pre><code>router = routers.DefaultRouter()
  router.register(r'bottles', views.BottleViewSet, base_name='bottles')
  
  urlpatterns = patterns('',
      url(r'^', include(router.urls)),
      # ...
  </code></pre>
  
  <p>I don't have a user detail view and I don't see where this issue could come from. Any ideas?</p>
  
  <p>Thanks</p>