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Code Issues 32 Releases Wiki Activity

Enabled database-level autocommit for all backends.

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This is mostly a documentation change.

It has the same backwards-incompatibility consequences as those
described for PostgreSQL in a previous commit.
This commit is contained in:
Aymeric Augustin
2013-03-03 15:55:11 +01:00
parent cfc114e00e
commit 5e27debc5c
7 changed files with 238 additions and 140 deletions
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22
docs/releases/1.6.txt
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@@ -30,6 +30,18 @@ prevention <clickjacking-prevention>` are turned on.
If the default templates don't suit your tastes, you can use :ref:`custom
project and app templates <custom-app-and-project-templates>`.
Improved transaction management
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Django's transaction management was overhauled. Database-level autocommit is
now turned on by default. This makes transaction handling more explicit and
should improve performance. The existing APIs were deprecated, and new APIs
were introduced, as described in :doc:`/topics/db/transactions`.
Please review carefully the list of :ref:`known backwards-incompatibilities
<transactions-changes-from-1.5>` to determine if you need to make changes in
your code.
Persistent database connections
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -148,6 +160,16 @@ Backwards incompatible changes in 1.6
deprecation timeline for a given feature, its removal may appear as a
backwards incompatible change.
* Database-level autocommit is enabled by default in Django 1.6. While this
doesn't change the general spirit of Django's transaction management, there
are a few known backwards-incompatibities, described in the :ref:`transaction
management docs <transactions-changes-from-1.5>`. You should review your code
to determine if you're affected.
* In previous versions, database-level autocommit was only an option for
PostgreSQL, and it was disabled by default. This option is now
:ref:`ignored <postgresql-autocommit-mode>`.
* The ``django.db.models.query.EmptyQuerySet`` can't be instantiated any more -
it is only usable as a marker class for checking if
:meth:`~django.db.models.query.QuerySet.none` has been called: