Improve Internationalization docs

[Camilo Nova]

Hi, the documentacion at:

​http://docs.djangoproject.com/en/dev/topics/i18n/internationalization/#the-set-language-redirect-view

Needs to say that you need to have:

MIDDLEWARE_CLASSES = (
   ...
   'django.middleware.locale.LocaleMiddleware',
   ...
)

to work when you try to change your language, otherwise it will fail without a hint of the problem.

Also, there will be better that the view say something when this middleware is not set?

[Camilo Nova]

There is anything i can do to fix this soon?

[Jacob]

If you produce a patch against the documentation that'll speed things up. Check out the ​contribution guide for an introduction to contributing if you need help on how to do that.

[Camilo Nova]

Thanks Jacob, the patch is attached now.

[Camilo Nova]

Any advance on this??

[Luke Plant]

Having looked at this, it seems like the docs for the set_language redirect view are just in the wrong place. That page is about i18n, and the set_language view is about controlling l10n. The correct place for those docs would probably be here: ​http://docs.djangoproject.com/en/dev/topics/i18n/deployment/#how-django-discovers-language-preference

And that page already has the information about the middleware.

[Camilo Nova]

When it comes to implementation the first reference is ​http://docs.djangoproject.com/en/dev/topics/i18n/internationalization/#the-set-language-redirect-view and there is no information about this, so you think is better to have a link that references this page ​http://docs.djangoproject.com/en/dev/topics/i18n/deployment/#how-django-discovers-language-preference ??

[Aymeric Augustin]

Change UI/UX from NULL to False.

[Tim Graham]

Addressed in #17183