How to use namespace urls with django in a reusuable app

Question

I have a django app, a forum app, that has templates with it. In those templates, there are urls that point to parts of the app. For instance the thread_list template has li

Answer 1

From what I can gather you should be able use {% url forum:thread thread %} as you've described. Namespaces always seem to be defined with two variables, namespace and app_name.

If you then do the following in urls.py:

url(r'^/forum/', include('forum.urls', namespace='forum', app_name='forum')),
url(r'^/foo/', include('forum.urls', namespace='foo', app_name='forum')),
url(r'^/bar/', include('forum.urls', namespace='bar', app_name='forum')),

In my understanding, this defines 3 instances of the app 'forum', 'foo', 'bar', and the default (which has namespace==app_name).

When you reverse forum:thread, it uses the current context to determine which one to use- if you are in namespace 'foo' it will use that, otherwise it will fall back on the default.

If anyone is able to clarify how Django decides what the 'current' namespace/app is that would be very helpful. I currently categorise it as 'black magic'.

Some clarification on the actual difference between namespace and app_name would also be helpful- it's possible that I have this totally reversed. The current docs are highly ambiguous.

Note: I have this working for initial requests, but I'm currently unable to make this work for AJAX requests- those always use the default instance for some reason.