from django.db import models

class parent(models.Model):
	name = models.CharField()

class childA(models.Model):
	parent = models.ForeignKey(parent)
	some_field = models.CharField()

class childB(models.Model):
	parent = models.ForeignKey(parent)
	some_other_field = models.CharField()
	some_field = #How to tie to some_field (multiple) from childA with same parent as childB's?

#USING manage.py shell
p = objects.all()[0] #first parent
childb = p.childB_set.all()[0] #first childB object under p
print childb.parent.childA_set.all() # Returns list of childA objects
#How to get the same result in the models.py?