limit_choice_to all objects of a particular model classe in a ForeignKey

Question

Example

class Base():
     pass

class A(Base)
parent=models.Foreignkey("self", limit_choices_to=(all members of the B class)

class B(Base)
parent=models.Foreignkey("self", limit_choices_to=(all members of the A class)

What would be the query syntax for limit_choices_to, to get only the objects of a certain class?)

Answer 1

Wouldn't this work instead ?

class Base(Model):
    parent=models.Foreignkey("self")

    class Meta:
        abstract = True


class A(Base):
    parent=models.Foreignkey("B")

class B(Base):
    parent=models.Foreignkey("A")