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