mirror of
https://github.com/django/django.git
synced 2024-11-18 23:44:22 +00:00
cdfbe79674
git-svn-id: http://code.djangoproject.com/svn/django/trunk@14164 bcc190cf-cafb-0310-a4f2-bffc1f526a37
20 lines
524 B
Python
20 lines
524 B
Python
"""
|
|
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")
|