In my Django app, I need to start running a few periodic background jobs when a user logs in and stop running them when the user logs out, so I am looking for an elegant way to
- get notified of a user login/logout
- query user login status
From my perspective, the ideal solution would be
- a signal sent by each
- a method
django.contrib.auth.models.User.is_logged_in(), analogous to
Django 1.1.1 does not have that and I am reluctant to patch the source and add it (not sure how to do that, anyway).
As a temporary solution, I have added an
is_logged_in boolean field to the UserProfile model which is cleared by default, is set the first time the user hits the landing page (defined by
LOGIN_REDIRECT_URL = '/') and is queried in subsequent requests. I added it to UserProfile, so I don't have to derive from and customize the builtin User model for that purpose only.
I don't like this solution. If the user explicitely clicks the logout button, I can clear the flag, but most of the time, users just leave the page or close the browser; clearing the flag in these cases does not seem straight forward to me. Besides (that's rather data model clarity nitpicking, though),
is_logged_in does not belong in the UserProfile, but in the User model.
Can anyone think of alternate approaches ?
You can use a signal like this (I put mine in models.py)
from django.contrib.auth.signals import user_logged_in def do_stuff(sender, user, request, **kwargs): whatever... user_logged_in.connect(do_stuff)