CODEWITHSUNDEEP
pythondjangoapitastypie
zacmwa
zacmwa

Reputation: 578

Django Tastypie prepend_urls error

Django-tastypie error. I am trying to prepend_urls so that I can list friends for a user but I get an error " NameError at /api/v1/friends/user/1/ global name 'url' is not defined". Here is the code for the Friends Resource.

class FriendsResource(ModelResource):
      from_user=fields.ForeignKey(UserResource,'from_user')
      to_user=fields.ForeignKey(UserResource,'to_user')


      class Meta:
           queryset=Friends.objects.all()
           serializer=Serializer(formats=['json'])
           resource_name='friends'
           filtering={
                       'from_user':ALL_WITH_RELATIONS,
                       'to_user':ALL_WITH_RELATIONS

           }

and here is the code for prepend_urls and the method to put into wrap_view.

def get_users(self,request):
       self.method_check(request,['get'])
       friends = []
       for friend in Friends.objects.filter(Q(from_user=request.user)|Q(to_user=request.user)):
            friends.append(friend)      

  def prepend_urls(self):
       return [

             url(r"^(?P<resource_name>%s)/(?P<pk>\w[\w/-]*)/user%s$" %(self._meta.resource_name,trailing_slash()),
                   self.wrap_view('get_users'),name= 'api_get_friends_for_user')
               ]

Here is the Traceback:

  Environment:

Request Method: GET
Request URL: http://localhost:8000/api/v1/friends/user/1/

Django Version: 1.6.2
Python Version: 2.7.3
Installed Applications:
('django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'tastypie',
 'userprof',
 'relations',
 'event',
 'liking',
 'feed')
Installed Middleware:
('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 "/root/python/django-zack/local/lib/python2.7/site-packages/Django-1.6.2-py2.7.egg/django/core/handlers/base.py" in get_response
  101.                 resolver_match = resolver.resolve(request.path_info)
File "/root/python/django-zack/local/lib/python2.7/site-packages/Django-1.6.2-py2.7.egg/django/core/urlresolvers.py" in resolve
  318.             for pattern in self.url_patterns:
File "/root/python/django-zack/local/lib/python2.7/site-packages/Django-1.6.2-py2.7.egg/django/core/urlresolvers.py" in url_patterns
  346.         patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/root/python/django-zack/local/lib/python2.7/site-packages/Django-1.6.2-py2.7.egg/django/core/urlresolvers.py" in urlconf_module
  341.             self._urlconf_module = import_module(self.urlconf_name)
File "/root/python/django-zack/local/lib/python2.7/site-packages/Django-1.6.2-py2.7.egg/django/utils/importlib.py" in import_module
  40.         __import__(name)
File "/root/python/django-zack/wyat/wyat/urls.py" in <module>
  25.      url(r'^api/',include(v1_api.urls)),
File "/root/python/django-zack/local/lib/python2.7/site-packages/tastypie/api.py" in urls
  107.             pattern_list.append((r"^(?P<api_name>%s)/" % self.api_name, include(self._registry[name].urls)))
File "/root/python/django-zack/local/lib/python2.7/site-packages/tastypie/resources.py" in urls
  324.         urls = self.prepend_urls()
File "/root/python/django-zack/wyat/event/api.py" in prepend_urls
  68.                  url(r"^(?P<resource_name>%s)/(?P<pk>\w[\w/-]*)/user%s$" %(self._meta.resource_name,trailing_slash()),

Exception Type: NameError at /api/v1/friends/user/1/
Exception Value: global name 'url' is not defined

Please tell me where I am wrong because I used the example from the cookbook on nested resources and I can't see where I'm wrong.

Upvotes: 0

Views: 1762

Answers (1)

Sumuga
Sumuga

Reputation: 330

@Zacmwa

I have a working prepend_urls .. you can take a look at the following example.


def prepend_urls(self):
        return [
            url(r"^(?P%s)/generate%s$" %
                (self._meta.resource_name, trailing_slash()),
                self.wrap_view('genusr'), name="api_get_genusr"),
        ]

def genusr(self, request, **kwargs):
        data = self.deserialize(request, request.body, format=request.META.get('Content-Type', 'application/json'))
        print(data.get('workflows',None))
        child_resource = UserResource()
        return child_resource.get_list(request)

And the above methods is wrappered inside my resource model.

Error is likely to be caused due to some missing imports kindly try to import django.core.urlresolvers import resolve, from tastypie.utils import trailing_slash and try again. Let me know what happens when you do this.

Upvotes: 1

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