django1/django/views/i18n.py

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from django.utils import httpwrappers
from django.utils.translation import check_for_language
def set_language(request):
"""
Redirect to a given url while setting the chosen language in the
session or cookie. The url and the language code need to be
specified in the GET paramters.
"""
lang_code = request.GET['language']
next = request.GET.get('next', None)
if not next:
next = request.META.get('HTTP_REFERER', None)
if not next:
next = '/'
response = httpwrappers.HttpResponseRedirect(next)
if check_for_language(lang_code):
if hasattr(request, 'session'):
request.session['django_language'] = lang_code
else:
response.set_cookie('django_language', lang_code)
return response