Set default language to Arabic

lms/djangoapps/edraak_misc/middleware.py

+from django.utils.cache import patch_vary_headers
+from django.utils import translation
+from django.conf import settings
+
+
+class ForceLangMiddleware(object):
+    """
+    Ignore Accept-Language HTTP headers and environment LANG variable.
+
+    This will force the I18N machinery to always choose settings.LANGUAGE_CODE
+    as the default initial language, unless another one is set via sessions or cookies
+
+    Should be installed *before* any middleware that checks request.META['HTTP_ACCEPT_LANGUAGE'],
+    namely django.middleware.locale.LocaleMiddleware
+    """
+    def process_request(self, request):
+        if 'HTTP_ACCEPT_LANGUAGE' in request.META:
+            del request.META['HTTP_ACCEPT_LANGUAGE']
+        if 'LANG' in request.environ:
+            del request.environ['LANG']
+
+
+class SessionBasedLocaleMiddleware(object):
+    """
+    This Middleware saves the desired content language in the user session.
+    The SessionMiddleware has to be activated.
+    """
+    def process_request(self, request):
+        if request.method == 'GET' and 'lang' in request.GET:
+            if 'language_flag' in request.session and request.session['language_flag']:
+                language = request.session['language_reference']
+                request.session['language_flag'] = False
+            else:
+                language = request.GET['lang']
+            request.session['language'] = language
+        elif 'django_language' in request.session and 'language' in request.POST:
+            language = request.POST['language']
+            request.session['language_reference'] = request.POST['language']
+            request.session['language_flag'] = True
+        else:
+            language = translation.get_language_from_request(request)
+
+        for lang in settings.LANGUAGES:
+            if lang[0] == language:
+                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

lms/envs/common.py

@@ -917,6 +917,10 @@ MIDDLEWARE_CLASSES = (
     'django.middleware.csrf.CsrfViewMiddleware',
     'splash.middleware.SplashMiddleware',
 
+    # Make Arabic language the default one
+    'edraak_misc.middleware.ForceLangMiddleware',
+    'edraak_misc.middleware.SessionBasedLocaleMiddleware',
+
     # Allows us to dark-launch particular languages
     'dark_lang.middleware.DarkLangMiddleware',
     'geoinfo.middleware.CountryMiddleware',