MERGED MAGIC-REMOVAL BRANCH TO TRUNK. This change is highly backwards-incompatible. Please read http://code.djangoproject.com/wiki/RemovingTheMagic for upgrade instructions.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@2809 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Adrian Holovaty 2006-05-02 01:31:56 +00:00
parent d5dbeaa9be
commit f69cf70ed8
366 changed files with 17833 additions and 11199 deletions

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"""
24. Mutually referential many-to-one relationships
To define a many-to-one relationship, use ``ForeignKey()`` .
"""
from django.db.models import *
class Parent(Model):
name = CharField(maxlength=100, core=True)
bestchild = ForeignKey("Child", null=True, related_name="favoured_by")
class Child(Model):
name = CharField(maxlength=100)
parent = ForeignKey(Parent)
API_TESTS = """
# Create a Parent
>>> q = Parent(name='Elizabeth')
>>> q.save()
# Create some children
>>> c = q.child_set.create(name='Charles')
>>> e = q.child_set.create(name='Edward')
# Set the best child
>>> q.bestchild = c
>>> q.save()
>>> q.delete()
"""