configure_user() moved from class MyRemoteUserBackend to class UserAttributes, as static factory.

call configure_user() while adding user from form

accounts/backends.py

@@ -5,26 +5,9 @@ from instances.models import Instance
 class MyRemoteUserBackend(RemoteUserBackend):
 
     #create_unknown_user = True
-    default_instances = [ 'debian8-template' ]
-
-    def create_missing_userattributes(self, user):
-        try:
-            userattributes = user.userattributes
-        except UserAttributes.DoesNotExist:
-            userattributes = UserAttributes(user=user)
-            userattributes.save()
-
-    def add_default_instances(self, user):
-        existing_instances = UserInstance.objects.filter(user=user)
-        if not existing_instances:
-            for instance_name in self.default_instances:
-                instance = Instance.objects.get(name=instance_name)
-                user_instance = UserInstance(user=user, instance=instance)
-                user_instance.save()
 
     def configure_user(self, user):
         #user.is_superuser = True
-        self.create_missing_userattributes(user)
-        self.add_default_instances(user)
+        UserAttributes.configure_user(user)
         return user