Django i18n using translation.activate - django

Question

I have configured Django i18n and it works just fine if you change the browser language using the browser configuration UI. I have tested both English and Spanish. However, when I try to let the user pick the language from the navigation bar and set a new LANGUAGE_SESSION_KEY based on the selection made by the user it would not work. The browser language will continue to be the selected language instead.
Here follows my code:
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.locale.LocaleMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
...
LANGUAGE_CODE = 'en'
LANGUAGE_SESSION_KEY = 'en'
TIME_ZONE = 'America/Sao_Paulo'
USE_I18N = True
USE_L10N = True
USE_TZ = True
LOCALE_PATHS = (
os.path.join(BASE_DIR, 'locale'),
)
LANGUAGES = (
('en', _('English')),
('es', _('Spanish')),
('pt', _('Portuguese'))
)
The view that is triggered by the navbar:
def setLanguage(request, language_code):
language = get_language()
try:
request.session[LANGUAGE_SESSION_KEY] = language_code
translation.activate(language_code)
request.LANGUAGE_CODE = translation.get_language()
request.session[translation.LANGUAGE_SESSION_KEY] = language_code
request.session.save()
except Exception as e:
print("$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ Oops!", e.__class__, "occurred.")
translation.activate(language)
return redirect('home_index')
I have debugged that the language_code passed corresponds correctly to the selected language (e.g. es instead of en) but it is not activated. The browser language remains as the active language.
I would appreciate any ideas. Thanks!
Alberto

Answer 1

After some research I found that the locale middleware is causing this, so I just commented it out. It is working as expected now.
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
#'django.middleware.locale.LocaleMiddleware',