title: Django error 'RawQuerySet' object has no attribute 'all'
body: <p>I got this error message if I'm using SQL statement to populate data in dropdown.</p>
  
  <p>Error message</p>
  
  <pre><code>'RawQuerySet' object has no attribute 'all'
  </code></pre>
  
  <p>Model.py</p>
  
  <pre><code>@python_2_unicode_compatible  # only if you need to support Python 2
  class FacebookAccount(models.Model):
      user = models.ForeignKey(User)
      account_description = models.CharField(max_length=50)
      facebook_application_id = models.CharField(max_length=50)
      facebook_application_secret = models.CharField(max_length=50)
      ouath_token = models.CharField(max_length=500)
      status = models.BooleanField(default=False)
  
      def __str__(self):
          return self.account_description
  
  @python_2_unicode_compatible  # only if you need to support Python 2
  class FacebookFanPage(models.Model):
      facebook_account = models.ForeignKey(FacebookAccount)
      fan_page_description = models.CharField(max_length=50)
      fan_page_id = models.CharField(max_length=30)
      fan_page_access_token = models.CharField(max_length=500, null=True)
  
      def __str__(self):
          return self.fan_page_description
  
  class Campaign(models.Model):
      aList = (
          ('1', 'Send replies to inbox messages'),
          ('2', 'Post replies to users comments')
      )
      user = models.ForeignKey(User)
      campaign_name = models.CharField(max_length=50)
      autoresponder_type = models.CharField(max_length=10, choices=aList, null=True)
      facebook_account_to_use = models.ForeignKey(FacebookAccount)
      set_auto_reply_for_fan_page = models.ForeignKey(FacebookFanPage)
      message_list_to_use = models.ForeignKey(PredefinedMessage)
      #reply_only_in_this_hourly_interval
      reply_only_for_this_keyword = models.CharField(max_length=50, null=True)
  </code></pre>
  
  <p>View.py</p>
  
  <pre><code>def autoresponder_create(request, template_name='autoresponder/autoresponder_form.html'):
  if not request.user.is_authenticated():
      return redirect('home')
  form = AutoresponderForm(request.POST or None)
  form.fields["set_auto_reply_for_fan_page"].query = FacebookFanPage.objects.raw('SELECT * '
                                           'FROM fbautoreply_facebookfanpage '
                                           'JOIN fbautoreply_facebookaccount ON fbautoreply_facebookfanpage.facebook_account_id = fbautoreply_facebookaccount.id '
                                           'WHERE fbautoreply_facebookaccount.user_id = %s ', [str(request.user.id)])
  if form.is_valid():
      form = form.save(commit=False)
      form.user = request.user
      form.save()
      return redirect('autoresponder_list')
  return render(request, template_name, {'form':form})
  </code></pre>