sample-model.py

class MyModel(models.Model):
    
    status = models.IntegerField()
    stuff = models.ForeignKey()

    def save(self, force_insert=False, force_update=False):
        #if something has happened with stuff:
        #   update status 
        super(MyModel, self).save(force_insert, force_update)

# My Gues is that for Django 1.2 or 1.3, I just replace 
#    def save(self, force_insert=False, force_update=False):
# with
#   def save(self, *args, **kwargs):