django override User model

Question

I'm trying to override the default User model in Django to add some logic into the save() method. I'm having a hard time trying to figure out out to go about this.

I'm using Django 1.1 if that helps.

I used post_save since i need to add the user into ldap.. I just added this into a models.py

from django.db import models from django.contrib.auth.models import User from django.db.models import signals from django.dispatch import dispatcher def user_post_save(sender, instance, **kwargs): print "got here" models.signals.post_save.connect(user_post_save, sender=User)

You can look at Proxy Models: docs.djangoproject.com/en/dev/topics/db/models/#proxy-models. By the way: there are plenty of questions like Yours (e.g. mine stackoverflow.com/questions/2263533) — Dawid
– Dawid, Commented Feb 25, 2010 at 14:33
@Dejw, I've tried proxy model before but I think it messes up url from auth like when you access the admin site. — goh
– goh, Commented Mar 8, 2011 at 15:10

Ignacio Vazquez-Abrams · Accepted Answer · 2010-02-25 14:31:22Z

4

Don't. Instead catch the pre_save signal.

answered Feb 25, 2010 at 14:31

Ignacio Vazquez-Abrams

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3 Comments

Dominic Rodger Over a year ago

How? What would he do in the pre_save signal? Can you give an example of how to do it?

Ignacio Vazquez-Abrams Over a year ago

@Dominic: The signal handler is passed the model before it's put into the database. You just manipulate it the way you normally would.

Mike Over a year ago

@dominic.. i updated my post with a example solution based on post_save signal

rewritten · Accepted Answer · 2010-08-18 08:40:22Z

You'd better use a Proxy model, so to use the same table but overriding behavior.

This is the standard way to extend Django's own models, because they cannot be made abstract.

So declare your model as:

from django.contrib.auth.models import User class CustomUser(User): class Meta: proxy = True def save(self, *args, **kwargs): # do anything you need before saving super(CustomUser, self).save(*args, **kwargs) # do anything you need after saving

and you are done.

I used proxy models and it breaks up couple of things such as urls in the admin site. Don't think its a good choice.
Right. Now that I know much more django than 7 months ago, I'd go straight to the signal path.

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