globally fewer db requests

kfet/middleware.py

@@ -1,15 +1,28 @@
 # -*- coding: utf-8 -*-
 
-from __future__ import (absolute_import, division,
-                        print_function, unicode_literals)
-from builtins import *
+from django.contrib.auth.models import User
 
-from django.http import HttpResponseForbidden
 from kfet.backends import KFetBackend
-from kfet.models import Account
+
 
 class KFetAuthenticationMiddleware(object):
+    """Authenticate another user for this request if KFetBackend succeeds.
+
+    By the way, if a user is authenticated, we refresh its from db to add
+    values from CofProfile and Account of this user.
+
+    """
     def process_request(self, request):
+        if request.user.is_authenticated():
+            # avoid multiple db accesses in views and templates
+            user_pk = request.user.pk
+            print(user_pk)
+            request.user = (
+                User.objects
+                .select_related('profile__account_kfet')
+                .get(pk=user_pk)
+            )
+
         kfet_backend = KFetBackend()
         temp_request_user = kfet_backend.authenticate(request)
         if temp_request_user: