1 "this is the locale selecting middleware that will look at accept headers"

     2 

     3 from django.utils.cache import patch_vary_headers

     4 from django.utils import translation

     5 

     6 class LocaleMiddleware(object):

     7     """

     8     This is a very simple middleware that parses a request

     9     and decides what translation object to install in the current

    10     thread context. This allows pages to be dynamically

    11     translated to the language the user desires (if the language

    12     is available, of course).

    13     """

    14 

    15     def process_request(self, request):

    16         language = translation.get_language_from_request(request)

    17         translation.activate(language)

    18         request.LANGUAGE_CODE = translation.get_language()

    19 

    20     def process_response(self, request, response):

    21         patch_vary_headers(response, ('Accept-Language',))

    22         if 'Content-Language' not in response:

    23             response['Content-Language'] = translation.get_language()

    24         translation.deactivate()

    25         return response