+
−"this is the locale selecting middleware that will look at accept headers"
+
−
+
−from django.utils.cache import patch_vary_headers
+
−from django.utils import translation
+
−
+
−class LocaleMiddleware(object):
+
−    """
+
−    This is a very simple middleware that parses a request
+
−    and decides what translation object to install in the current
+
−    thread context. This allows pages to be dynamically
+
−    translated to the language the user desires (if the language
+
−    is available, of course).
+
−    """
+
−
+
−    def process_request(self, request):
+
−        language = translation.get_language_from_request(request)
+
−        translation.activate(language)
+
−        request.LANGUAGE_CODE = translation.get_language()
+
−
+
−    def process_response(self, request, response):
+
−        patch_vary_headers(response, ('Accept-Language',))
+
−        if 'Content-Language' not in response:
+
−            response['Content-Language'] = translation.get_language()
+
−        translation.deactivate()
+
−        return response