Implement GUI language and timezone as user preferences, issue #114

mayan/apps/common/middleware/timezone.py

@@ -0,0 +1,16 @@
+import pytz
+
+from django.utils import timezone
+
+
+class TimezoneMiddleware(object):
+    def process_request(self, request):
+        if hasattr(request, 'session'):
+            tzname = request.session.get('django_timezone')
+            if tzname:
+                timezone.activate(pytz.timezone(tzname))
+            else:
+                timezone.deactivate()
+        else:
+            # TODO: Cookie, browser based timezone
+            timezone.deactivate()