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Fixed #27272 -- Added an on_delete RESTRICT handler to allow cascading deletions while protecting direct ones.

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This commit is contained in:
Daniel Izquierdo
2016-10-10 16:23:35 +09:00
committed by Mariusz Felisiak
parent 4e1d809aa5
commit 89abecc75d
11 changed files with 306 additions and 17 deletions
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docs/releases/3.1.txt
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@@ -199,6 +199,11 @@ Models
values under a certain (database-dependent) limit. Values from ``0`` to
``9223372036854775807`` are safe in all databases supported by Django.
* The new :class:`~django.db.models.RESTRICT` option for
:attr:`~django.db.models.ForeignKey.on_delete` argument of ``ForeignKey`` and
``OneToOneField`` emulates the behavior of the SQL constraint ``ON DELETE
RESTRICT``.
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