SET_DEFAULT为ForeignKey列本身

Question

I'm create this table in Django models:

class customer(models.Model):
    name = models.CharField(max_length=100)
    inviter = models.ForeignKey('self', null=True, blank=True, on_delete=models.SET_DEFAULT)

inviter is ForeignKey of self

Now I want set_default one row of customer table for inviter column.

Answer 1

I think you should add default keyword

inviter = models.ForeignKey('self', null=True, blank=True, on_delete=models.SET_DEFAULT, default=get_default)

and predefine get_default method.