tutorial documentation starting admin (part II)

[jerry@…]

When starting the admin site (Mac OS X 10.6.8, Python version 2.6.1) according to tutorial part2, I ran into an error:

DoesNotExist at /admin/ Site matching query does not exist

I found the solution at stackoverflow, ​http://stackoverflow.com/questions/6086852/how-to-fix-the-django-sites-table comment out the 'django.contrib.sites' in installed apps. Would be nice if the tutorial incorporates this message and solution.

[Aymeric Augustin]

The solution you found on SO disables useful features of Django to work around the problem; it doesn't address the root cause. This is certainly not something we want to recommend in the tutorial.

I suppose that you Site object must not have id 1. To confirm this hypothesis, could you paste the output of ./manage.py dumpdata sites --indent=2? Could you also confirm that your settings.py contains SITE_ID = 1? Thanks!

[anonymous]

settings.py contains SITE_ID = 1

# system time zone.
TIME_ZONE = 'Europe/Amsterdam'

# Language code for this installation. All choices can be found here:
# http://www.i18nguy.com/unicode/language-identifiers.html
LANGUAGE_CODE = 'en-us'

SITE_ID = 1

# If you set this to False, Django will make some optimizations so as not
# to load the internationalization machinery.
USE_I18N = True

with django.contrib.sites enabled:

[](django)[~/dev/jer_django]$./manage.py dumpdata sites --indent=2
./manage.py dumpdata sites --indent=2
[](django)[~/dev/jer_django]

with # django.contrib.sites (disabled):

(django)[~/dev/jer_django]$./manage.py dumpdata sites --indent=2
./manage.py dumpdata sites --indent=2
Error: Unknown application: sites

Total stacktrace:

nvironment:


Request Method: GET
Request URL: http://localhost:8000/admin/

Django Version: 1.4
Python Version: 2.6.1
Installed Applications:
('django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.sites',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'django.contrib.admin',
 'south',
 'debug_toolbar',
 'poll')
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')


Traceback:
File "/Users/jeroen/dev/jer_django/virtualenv/lib/python2.6/site-packages/django/core/handlers/base.py" in get_response
  111.                         response = callback(request, *callback_args, **callback_kwargs)
File "/Users/jeroen/dev/jer_django/virtualenv/lib/python2.6/site-packages/django/contrib/admin/sites.py" in wrapper
  213.                 return self.admin_view(view, cacheable)(*args, **kwargs)
File "/Users/jeroen/dev/jer_django/virtualenv/lib/python2.6/site-packages/django/utils/decorators.py" in _wrapped_view
  91.                     response = view_func(request, *args, **kwargs)
File "/Users/jeroen/dev/jer_django/virtualenv/lib/python2.6/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
  89.         response = view_func(request, *args, **kwargs)
File "/Users/jeroen/dev/jer_django/virtualenv/lib/python2.6/site-packages/django/contrib/admin/sites.py" in inner
  195.                 return self.login(request)
File "/Users/jeroen/dev/jer_django/virtualenv/lib/python2.6/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
  89.         response = view_func(request, *args, **kwargs)
File "/Users/jeroen/dev/jer_django/virtualenv/lib/python2.6/site-packages/django/contrib/admin/sites.py" in login
  326.         return login(request, **defaults)
File "/Users/jeroen/dev/jer_django/virtualenv/lib/python2.6/site-packages/django/views/decorators/debug.py" in wrapper
  69.             return view(request, *args, **kwargs)
File "/Users/jeroen/dev/jer_django/virtualenv/lib/python2.6/site-packages/django/utils/decorators.py" in _wrapped_view
  91.                     response = view_func(request, *args, **kwargs)
File "/Users/jeroen/dev/jer_django/virtualenv/lib/python2.6/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
  89.         response = view_func(request, *args, **kwargs)
File "/Users/jeroen/dev/jer_django/virtualenv/lib/python2.6/site-packages/django/contrib/auth/views.py" in login
  60.     current_site = get_current_site(request)
File "/Users/jeroen/dev/jer_django/virtualenv/lib/python2.6/site-packages/django/contrib/sites/models.py" in get_current_site
  92.         current_site = Site.objects.get_current()
File "/Users/jeroen/dev/jer_django/virtualenv/lib/python2.6/site-packages/django/contrib/sites/models.py" in get_current
  25.             current_site = self.get(pk=sid)
File "/Users/jeroen/dev/jer_django/virtualenv/lib/python2.6/site-packages/django/db/models/manager.py" in get
  131.         return self.get_query_set().get(*args, **kwargs)
File "/Users/jeroen/dev/jer_django/virtualenv/lib/python2.6/site-packages/django/db/models/query.py" in get
  366.                     % self.model._meta.object_name)

Exception Type: DoesNotExist at /admin/
Exception Value: Site matching query does not exist.

[Aymeric Augustin]

The traceback shows that you're using south; this means you haven't strictly followed the tutorial.

The default site is created by the post_syncdb signal. I suppose you haven't run syncdb when the tutorial told you, maybe because you've used migrate instead.