Django unique_together on sub-class model for parent attribute?

Question

In this:

class Administrator(models.Model):
    user = models.OneToOneField(User, primary_key=True)
    account = models.ForeignKey(Account)

    class Meta:
            


        

Answer 1

I don't believe you can do what you're trying to do using django core. As pointed out in this answer to a related question unique_together is enforced at the DB layer. If you inspect the DB tables created by django model inheritance, you'll see this isn't possible for the DB to accomplish.

Take a look at that related question for some alternative solutions.