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"""
24. Mutually referential many-to-one relationships
Strings can be used instead of model literals to set up "lazy" relations.
"""
from django.db.models import *
class Parent(Model):
name = CharField(max_length=100)
# Use a simple string for forward declarations.
bestchild = ForeignKey("Child", null=True, related_name="favoured_by")
class Child(Model):
name = CharField(max_length=100)
# You can also explicitally specify the related app.
parent = ForeignKey("mutually_referential.Parent")
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