title: Django : AttributeError
body: <p>When I'm trying to retrieve data using a Foreign key from other table I'm getting the below exception:</p>
  
  <pre><code>'User' object has no attribute 'UserFeed_set'
  </code></pre>
  
  <p>View : </p>
  
  <pre><code>def user_page(request, username):
      try:
          u = User.objects.get(username=username)
      except User.DoesNotExist:
          raise Http404(u'Requested user not found.')
      feeds = u.UserFeed_set.all()
      variables = RequestContext(request, {
          'username' : username,
          'feeds' : feeds
      })
      return render_to_response('user_page.html', variables)
  </code></pre>
  
  <p>models.py:</p>
  
  <pre><code>from django.contrib.auth.models import User
  
  class AllFeeds(models.Model):
      url = models.CharField(unique=True, max_length=40)
  
      def __unicode__(self):
          return self.url
  
  class UserFeed(models.Model):
      user = models.ForeignKey(User)
      myfeeds = models.ForeignKey(AllFeeds)
  
      def __unicode__(self):
          return u'%s %s'%(self.user.username,self.link.url)
  </code></pre>