Django admin inline display but foreign key has opposite relation

Question

class One(models.Model):
    image = models.ImageField(upload_to=\"images\")
    summary = models.TextField()

    def __unicode__(self):
        return self.summary         


        

Answer 1

rather simple:

Your model is "broken", three can have only 1 One and 1 Two.

you can have a list of three for both One an Two entities.

If you reverse the foreign keys, change the models they are on (both pointing @ Three)

class OneToThreeInline(admin.StackedInline):
    fk_name = 'three'
    model = One

class TwoToThreeInline(admin.StackedInline):
    fk_name = 'three'
    model = Two