innov
/
django1
1
0
Fork 0
Code Issues Pull Requests 1 Projects Releases Wiki Activity

Fixed #28003 -- Doc'd what an auto-created OneToOneField parent_link looks like. 

Thanks Simon Charette for the draft patch.
This commit is contained in:
Simon Charette 2017-04-01 21:21:15 -04:00 committed by Tim Graham
parent 66150f7cf6
commit 0ad7e8f71f
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
docs/topics/db/models.txt
View File

@ -1074,6 +1074,18 @@ created directly as a ``Place`` object or was the parent of some other class),
referring to ``p.restaurant`` would raise a ``Restaurant.DoesNotExist``
exception.
The automatically-created :class:`~django.db.models.OneToOneField` on
``Restaurant`` that links it to ``Place`` looks like this::
place_ptr = models.OneToOneField(
Place, on_delete=models.CASCADE,
parent_link=True,
)
You can override that field by declaring your own
:class:`~django.db.models.OneToOneField` with :attr:`parent_link=True
<django.db.models.OneToOneField.parent_link>` on ``Restaurant``.
.. _meta-and-multi-table-inheritance:
``Meta`` and multi-table inheritance