title: Django QuerySet get_or_create - TypeError - save() got an unexpected keyword argument 'using'
body: <p>I have an error using <code>get_or_create</code> on a queryset:</p>
  
  <blockquote>
    <p>TypeError at ... <code>save()</code> got an unexpected keyword argument 'using'</p>
  </blockquote>
  
  <p>This is my view:</p>
  
  <pre><code>class MailingListSubscriptionForm(forms.ModelForm):
      """Form for subscribing to a mailing list"""
      # Notes : This form will not check the uniquess of
      # the 'email' field, by defining it explictly and setting
      # it the Meta.exclude list, for allowing registration
      # to a mailing list even if the contact already exists.
      # Then the contact is always added to the subscribers field
      # of the mailing list because it will be cleaned with no
      # double.
  
      email = forms.EmailField(label=_('Email'), max_length=75)
  
      def save(self, mailing_list):
          data = self.cleaned_data
          contact, created = Subscriber.objects.get_or_create(
              email__exact=data['email'], defaults={'email': data['email']}
          )
  
          mailing_list.subscribers.add(contact)
          mailing_list.unsubscribers.remove(contact)
  
      class Meta:
          model = Subscriber
          fields = ('email',)
  </code></pre>
  
  <p>and this is the full traceback:</p>
  
  <pre><code>Environment:
  
  
  Request Method: POST
  Request URL: http://127.0.0.1:8000/home/newsletter/
  
  Django Version: 1.4.3
  Python Version: 2.7.3
  Installed Applications:
  ('jmb.core',
   'django.contrib.auth',
   'django.contrib.contenttypes',
   'django.contrib.sessions',
   'django.contrib.sites',
   'django.contrib.messages',
   'django.contrib.staticfiles',
   'south',
   'easy_thumbnails',
  
   'web',
   'sccore.profiles',
   'django.contrib.admin',
   'django_extensions',
  
   'cms',
   'mptt',
   'menus',
   'south',
   'sekizai',
   'cms.plugins.flash',
   'cms.plugins.googlemap',
   'cms.plugins.link',
   'cms.plugins.snippet',
   'cms.plugins.text',
   'cms.plugins.twitter',
   'filer',
   'cmsplugin_filer_file',
   'cmsplugin_filer_folder',
   'cmsplugin_filer_image',
   'cmsplugin_filer_teaser',
   'cmsplugin_filer_video',
   'easy_thumbnails',
   'tinymce',
  
   'debug_toolbar',
   'django_extensions')
  Installed Middleware:
  ('django.middleware.common.CommonMiddleware',
   'django.contrib.sessions.middleware.SessionMiddleware',
   'django.middleware.csrf.CsrfViewMiddleware',
   'django.contrib.auth.middleware.AuthenticationMiddleware',
   'django.contrib.messages.middleware.MessageMiddleware',
   'jmb.core.middleware.thread_local.ThreadLocals',
   'cms.middleware.multilingual.MultilingualURLMiddleware',
   'cms.middleware.page.CurrentPageMiddleware',
   'cms.middleware.user.CurrentUserMiddleware',
   'cms.middleware.toolbar.ToolbarMiddleware',
   'debug_toolbar.middleware.DebugToolbarMiddleware')
  
  
  Template error:
  In template /home/luca/src/jmb-siti/www.acomea.it/web/templates/bootstrap_full.html, error at line 12
     save() got an unexpected keyword argument 'using'
     2 : {% load cms_tags menu_tags sekizai_tags %}
  
  
     3 : 
  
  
     4 : {% block central_content_left %}{% endblock %}
  
  
     5 : {% block central_content %}
  
  
     6 : &lt;div class="span9 central_content"&gt;
  
  
     7 :     &lt;div class="row-fluid"&gt;
  
  
     8 :         {% block central_content_central %}
  
  
     9 :         {% block central_content_central_top %}{% endblock %}
  
  
     10 :         {% block central_content_central_middle %}
  
  
     11 :         &lt;div class="span12 central_content_central_middle"&gt;&lt;div class="item6 height5"&gt;
  
  
     12 :              {% placeholder central_content_central_middle %} 
  
  
     13 :         &lt;/div&gt;&lt;/div&gt;
  
  
     14 :         {% endblock %}
  
  
     15 :         {% block central_content_central_bottom %}{% endblock %}
  
  
     16 :         {% endblock %}
  
  
     17 :     &lt;/div&gt;
  
  
     18 : &lt;/div&gt;
  
  
     19 : {% endblock %}
  
  
     20 : {% block central_content_right %}{% endblock %}
  
  
     21 : 
  
  
     22 : {% block central_right %}{% endblock %}
  
  
  Traceback:
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/core/handlers/base.py" in get_response
    111.                         response = callback(request, *callback_args, **callback_kwargs)
  File "/home/luca/.buildout/eggs/django_cms-2.3.3-py2.7.egg/cms/views.py" in details
    113.     return render_to_response(template_name, context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/shortcuts/__init__.py" in render_to_response
    20.     return HttpResponse(loader.render_to_string(*args, **kwargs), **httpresponse_kwargs)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/loader.py" in render_to_string
    171.         return t.render(Context(dictionary))
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/base.py" in render
    140.             return self._render(context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/test/utils.py" in instrumented_test_render
    62.     return self.nodelist.render(context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/base.py" in render
    823.                 bit = self.render_node(node, context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/debug.py" in render_node
    74.             return node.render(context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/loader_tags.py" in render
    123.         return compiled_parent._render(context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/test/utils.py" in instrumented_test_render
    62.     return self.nodelist.render(context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/base.py" in render
    823.                 bit = self.render_node(node, context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/debug.py" in render_node
    74.             return node.render(context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/loader_tags.py" in render
    123.         return compiled_parent._render(context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/test/utils.py" in instrumented_test_render
    62.     return self.nodelist.render(context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/base.py" in render
    823.                 bit = self.render_node(node, context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/debug.py" in render_node
    74.             return node.render(context)
  File "/home/luca/.buildout/eggs/django_classy_tags-0.3.4.1-py2.7.egg/classytags/core.py" in render
    102.         return self.render_tag(context, **kwargs)
  File "/home/luca/.buildout/eggs/django_sekizai-0.6.1-py2.7.egg/sekizai/templatetags/sekizai_tags.py" in render_tag
    75.         rendered_contents = nodelist.render(context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/base.py" in render
    823.                 bit = self.render_node(node, context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/debug.py" in render_node
    74.             return node.render(context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/loader_tags.py" in render
    62.             result = block.nodelist.render(context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/base.py" in render
    823.                 bit = self.render_node(node, context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/debug.py" in render_node
    74.             return node.render(context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/loader_tags.py" in render
    62.             result = block.nodelist.render(context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/base.py" in render
    823.                 bit = self.render_node(node, context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/debug.py" in render_node
    74.             return node.render(context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/loader_tags.py" in render
    62.             result = block.nodelist.render(context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/base.py" in render
    823.                 bit = self.render_node(node, context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/debug.py" in render_node
    74.             return node.render(context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/loader_tags.py" in render
    62.             result = block.nodelist.render(context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/base.py" in render
    823.                 bit = self.render_node(node, context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/debug.py" in render_node
    74.             return node.render(context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/loader_tags.py" in render
    62.             result = block.nodelist.render(context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/base.py" in render
    823.                 bit = self.render_node(node, context)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/template/debug.py" in render_node
    74.             return node.render(context)
  File "/home/luca/.buildout/eggs/django_classy_tags-0.3.4.1-py2.7.egg/classytags/core.py" in render
    102.         return self.render_tag(context, **kwargs)
  File "/home/luca/.buildout/eggs/django_cms-2.3.3-py2.7.egg/cms/templatetags/cms_tags.py" in render_tag
    235.         content = get_placeholder_content(context, request, page, name, inherit)
  File "/home/luca/.buildout/eggs/django_cms-2.3.3-py2.7.egg/cms/templatetags/cms_tags.py" in get_placeholder_content
    154.         content = render_placeholder(placeholder, context, name)
  File "/home/luca/.buildout/eggs/django_cms-2.3.3-py2.7.egg/cms/plugin_rendering.py" in render_placeholder
    126.     content.extend(render_plugins(plugins, context, placeholder, processors))
  File "/home/luca/.buildout/eggs/django_cms-2.3.3-py2.7.egg/cms/plugin_rendering.py" in render_plugins
    80.         out.append(plugin.render_plugin(context, placeholder, processors=processors))
  File "/home/luca/.buildout/eggs/django_cms-2.3.3-py2.7.egg/cms/models/pluginmodel.py" in render_plugin
    171.             context = plugin.render(context, instance, placeholder_slot)
  File "/home/luca/src/jumbo2/jmb.newsletter/jmb/newsletter/cms/plugins.py" in render
    27.                 form.save(instance.mailing_list)
  File "/home/luca/src/jumbo2/jmb.newsletter/jmb/newsletter/forms.py" in save
    27.             email__exact=data['email'], defaults={'email': data['email']}
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/db/models/manager.py" in get_or_create
    134.         return self.get_query_set().get_or_create(**kwargs)
  File "/home/luca/.buildout/eggs/Django-1.4.3-py2.7.egg/django/db/models/query.py" in get_or_create
    452.                 obj.save(force_insert=True, using=self.db)
  
  Exception Type: TypeError at /home/newsletter/
  Exception Value: save() got an unexpected keyword argument 'using'
  </code></pre>