Django - ManyToOne relation to a child class

Question

Hi! Is there a way to declare this case so that it works? I hope the code is self-explanatory.

class A(Model):
    many_to_one = models.ForeignKey(B)
    (...)

class B(A):
    (...)    

Answer 1

class A(Model):
    many_to_one = models.ForeignKey('B')
    (...)

class B(A):
    (...)