Not quite sure what to call this, it's not quite nested inlines, but is probably related.

I have a 3 level hierarchy of objects, A one-to-many B one-to-many C. Therefore, every C implicitly also belongs to an A.

class A(models.Model):
  stuff = models.CharField("Stuff", max_length=50)

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

class C(models.Model):
  b = models.ForeignKey(B)

I would like all C's that belong to an A to be listed on the admin page for A in an in-line. They do not have to show which B they belong to on the same page.

Is this possible or is it the same problem as nested inlines anyway? If it's possible, how do I do it?

I'm using django 1.3