python/lib/django_1_4/tests/modeltests/mutually_referential/models.py

   1 """
   2 24. Mutually referential many-to-one relationships
   3
   4 Strings can be used instead of model literals to set up "lazy" relations.
   5 """
   6
   7 from django.db import models
   8
   9
  10 class Parent(models.Model):
  11     name = models.CharField(max_length=100)
  12
  13     # Use a simple string for forward declarations.
  14     bestchild = models.ForeignKey("Child", null=True, related_name="favoured_by")
  15
  16 class Child(models.Model):
  17     name = models.CharField(max_length=100)
  18
  19     # You can also explicitally specify the related app.
  20     parent = models.ForeignKey("mutually_referential.Parent")