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[1.3.X] Fixed #702 - Documented that ManyToMany fields can't be in unique_together; thanks poirier for the patch.

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Backport of r17314 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.3.X@17315 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Timo Graham 2011-12-31 00:43:31 +00:00
parent 7b9016e5a2
commit 580389c588
1 changed files with 6 additions and 0 deletions
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docs/ref/models/options.txt
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@ -238,6 +238,12 @@ Django quotes column and table names behind the scenes.
unique_together = ("driver", "restaurant")
A :class:`~django.db.models.ManyToManyField` cannot be included in
unique_together (it's not even clear what that would mean). If you
need to validate uniqueness related to a
:class:`~django.db.models.ManyToManyField`, look at signals or
using an explicit :attr:`through <ManyToManyField.through>` model.
``verbose_name``
----------------