I have a Django project, training and an app inside this project, tests. The folder structure looks like this:
django-training
tests
urls.py
training
urls.py
Inside training/urls.py I have this pattern defined:
url(r'^tests/', include('tests.urls', namespace='tests'))
And inside tests/urls.py I have these patterns defined:
url(r'^$', index, name='index'),
url(r'^(\d+)/$', view, name='view'),
url(r'^give-up/$', give_up, name='give_up'),
url(r'^(\d+)/result/$', result, name='result')
Everything works fine.
But, what if I want to package the tests app as a reusable app that works in any Django project? What should I do with the URL patterns?
I created a tests/settings.py file and changed the ROOT_URLCONF config var to point to tests/urls.py. But this won't work, as this error will arise:
Traceback (most recent call last):
File "/home/user/.virtualenvs/clean2/local/lib/python2.7/site-packages/tests/tests.py", line 173, in testContext
response = self.client.get(reverse('tests:view', args=(1,)))
File "/home/user/.virtualenvs/clean2/local/lib/python2.7/site-packages/django/core/urlresolvers.py", line 492, in reverse
key)
NoReverseMatch: u'tests' is not a registered namespace
The error is quite logic, since reverse needs the namespace to be defined (tests, that is).
My question is: how and where shall I define this namespace for the reusable app so that URLs will work independent of the Django project the app is installed in?
I've found a quick solution to this problem in the Django manual.
In my tests/urls.py I've included the test namespace as so:
test_patterns = patterns('',
url(r'^$', index, name='index'),
url(r'^(\d+)/$', view, name='view'),
url(r'^give-up/$', give_up, name='give_up'),
url(r'^(\d+)/result/$', result, name='result'),
)
urlpatterns = patterns('',
url(r'^tests/', include(test_patterns, namespace='tests')),
)
URL reverse problems are now solved and everything works as expected.