title: 'function' object has no attribute 'user' error in Django?
body: <p>I get this error when I use:
  <code>@login_required('/login_backend/')</code> in my views.</p>
  
  <p>I am using Django 1.5. My user model is:</p>
  
  <pre><code>class User(AbstractBaseUser):
      #id = models.IntegerField(primary_key=True)
      #identifier = models.CharField(max_length=40, unique=True, db_index=True)
      username = models.CharField(max_length=90, unique=True, db_index=True)
      create_time = models.DateTimeField(null=True, blank=True)
      update_time = models.DateTimeField(null=True, blank=True)
      email = models.CharField(max_length=225)
      #password = models.CharField(max_length=120)
      external = models.IntegerField(null=True, blank=True)
      deleted = models.IntegerField(null=True, blank=True)
      purged = models.IntegerField(null=True, blank=True)
      form_values_id = models.IntegerField(null=True, blank=True)
      disk_usage = models.DecimalField(null=True, max_digits=16, decimal_places=0, blank=True)
      #last_login = models.DateTimeField()
  
      objects = UserManager()
      USERNAME_FIELD = 'email'
      class Meta:
          db_table = u'galaxy_user'
  </code></pre>
  
  <p>How to solve this?</p>
  
  <p><strong>Edit:</strong> My view code:</p>
  
  <pre><code>def login_backend(request):
      if request.method == 'POST':
          username = request.POST['username']
          password = request.POST['password']
          user = authenticate(username=username, password=password)
          if user is not None:
              login(request, user)
              return HttpResponseRedirect('/overview/')
          else:
              return HttpResponseRedirect('/login_backend/')
      else:
          return render_to_response('login_backend.html', context_instance=RequestContext(request))
  
  @login_required('/login_backend/')
  def logout_view(request):
      logout(request)
      return HttpResponseRedirect('/login_backend/')
  
  @login_required('/login_backend/')
  def show_files(request):
      try:
          log_id = request.user.id
          username = request.user.username
          b = File.objects.filter(users_id=log_id, flag='F', flag_r='S')  # Get the user id from session .delete() to use delete
          total_files = File.objects.filter(users_id=log_id, flag='F').count()
          total_size = File.objects.filter(users_id=log_id, flag='F').aggregate(Sum('size_overview'))
          total_size = total_size['size_overview__sum']
          total_size = size(total_size, system=alternative)
          return render_to_response('overview.html', {'overview_files': b, 'total_files':total_files, 'total_size':total_size, 'username': username}, context_instance=RequestContext(request))
      except TypeError:
          return render_to_response('overview.html', {'overview_files': b, 'total_files':total_files, 'total_size':total_size, 'username': username}, context_instance=RequestContext(request))
  </code></pre>
  
  <p><strong>Traceback:</strong></p>
  
  <pre><code>Traceback:
  File "/usr/local/lib/python2.6/dist-packages/django/core/handlers/base.py" in get_response
    103.                     resolver_match = resolver.resolve(request.path_info)
  File "/usr/local/lib/python2.6/dist-packages/django/core/urlresolvers.py" in resolve
    321.                     sub_match = pattern.resolve(new_path)
  File "/usr/local/lib/python2.6/dist-packages/django/core/urlresolvers.py" in resolve
    223.             return ResolverMatch(self.callback, args, kwargs, self.name)
  File "/usr/local/lib/python2.6/dist-packages/django/core/urlresolvers.py" in callback
    230.         self._callback = get_callable(self._callback_str)
  File "/usr/local/lib/python2.6/dist-packages/django/utils/functional.py" in wrapper
    29.         result = func(*args)
  File "/usr/local/lib/python2.6/dist-packages/django/core/urlresolvers.py" in get_callable
    97.             mod = import_module(mod_name)
  File "/usr/local/lib/python2.6/dist-packages/django/utils/importlib.py" in import_module
    35.     __import__(name)
  File "/home/zurelsoft/workspace/genalytics/fileupload/backend.py" in &lt;module&gt;
    37. @login_required('/login_backend/')
  File "/usr/local/lib/python2.6/dist-packages/django/contrib/auth/decorators.py" in _wrapped_view
    24.             if test_func(request.user):
  
  Exception Type: AttributeError at /login_backend/
  Exception Value: 'function' object has no attribute 'user'
  </code></pre>