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[1.6.x] Documentation fixes for the select_for_update change.

Refs #22343; thanks Tim Graham for the fixes.
This commit is contained in:
Shai Berger
2014-04-10 03:40:33 +03:00
parent 690a5984a3
commit d5cef2a19c
2 changed files with 9 additions and 9 deletions

View File

@@ -17,18 +17,18 @@ executed in autocommit mode, outside of a transaction. Before Django
lock records until the next write operation. Django 1.6 introduced
database-level autocommit; since then, execution in such a context
voids the effect of ``select_for_update()``. It is, therefore, assumed
now to be an error, and raises an exception.
now to be an error and raises an exception.
This change was made because such errors can be caused by including an
app which expects global transactions (e.g. :setting:`ATOMIC_REQUESTS
<DATABASE-ATOMIC_REQUESTS>` set to ``True``), or Django's old autocommit
behavior, in a project which runs without them; and further, such
errors may manifest as data-corruption bugs.
This change may cause test failures if you use ``select_for_update()``
in a test class which is a subclass of
:class:`~django.test.TransactionTestCase` rather than
:class:`~django.test.TestCase`.
This change was made because such errors can be caused by including an
app which expects global transactions (e.g. :setting:`ATOMIC_REQUESTS
<DATABASE-ATOMIC_REQUESTS>` set to True), or Django's old autocommit
behavior, in a project which runs without them; and further, such
errors may manifest as data-corruption bugs.
:class:`~django.test.TestCase`.
Other bugfixes and changes
==========================