mirror of
https://github.com/django/django.git
synced 2025-08-04 19:08:28 +00:00
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:
parent
d5dbeaa9be
commit
f69cf70ed8
366 changed files with 17833 additions and 11199 deletions
0
tests/modeltests/mutually_referential/__init__.py
Normal file
0
tests/modeltests/mutually_referential/__init__.py
Normal file
32
tests/modeltests/mutually_referential/models.py
Normal file
32
tests/modeltests/mutually_referential/models.py
Normal file
|
@ -0,0 +1,32 @@
|
|||
"""
|
||||
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()
|
||||
|
||||
"""
|
Loading…
Add table
Add a link
Reference in a new issue