Fix user object not JSON serializable

Now using user_id on session

helios_auth/auth_systems/password.py

@@ -57,7 +57,7 @@ def password_login_view(request):
       try:
         user = User.get_by_type_and_id('password', username)
         if password_check(user, password):
-          request.session['password_user'] = user
+          request.session['password_user_id'] = user.id
           return HttpResponseRedirect(reverse(after))
       except User.DoesNotExist:
         pass
@@ -104,9 +104,10 @@ def get_auth_url(request, redirect_url = None):
   return reverse(password_login_view)
     
 def get_user_info_after_auth(request):
-  user = request.session['password_user']
-  del request.session['password_user']
-  user_info = user.info
+  from helios_auth.models import User
+  user_id = request.session['password_user_id']
+  user = User.objects.get(id=request.session['password_user_id'])
+  del request.session['password_user_id']
   
   return {'type': 'password', 'user_id' : user.user_id, 'name': user.name, 'info': user.info, 'token': None}