How to explicitly set django_language in django session

Question

How to explicitly set django_language in Django session?

Thanks a lot...

Answer 1

If you want your users to be able to specify language, make sure that LocaleMiddleware is enabled:

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

Then Django will look for the user's language preference in that order (see get_language_from_request in trans_real.py):

1. in request.path_info, if i18n_patterns are used;
2. request.session[settings.LANGUAGE_SESSION_KEY];
3. request.COOKIES[settings.LANGUAGE_COOKIE_NAME];
4. every language in request.META['HTTP_ACCEPT_LANGUAGE'], until accepted one is found;
5. settings.LANGUAGE_CODE.

So the most straightforward way to set language explicitly in Django session is to rewrite request.session[settings.LANGUAGE_SESSION_KEY]:

def someview (request):
    ...
    request.session[settings.LANGUAGE_SESSION_KEY] = 'en'
    ...