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76 lines
3.1 KiB
Plaintext
76 lines
3.1 KiB
Plaintext
==========================
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Django 1.6.3 release notes
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==========================
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*Under development*
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This is Django 1.6.3, a bugfix release for Django 1.6. Django 1.6.3 fixes
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several bugs in 1.6.2 and makes one backwards-incompatible change:
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``select_for_update()`` requires a transaction
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==============================================
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Historically, queries that use
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:meth:`~django.db.models.query.QuerySet.select_for_update()` could be
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executed in autocommit mode, outside of a transaction. Before Django
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1.6, Django's automatic transactions mode allowed this to be used to
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lock records until the next write operation. Django 1.6 introduced
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database-level autocommit; since then, execution in such a context
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voids the effect of ``select_for_update()``. It is, therefore, assumed
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now to be an error and raises an exception.
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This change was made because such errors can be caused by including an
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app which expects global transactions (e.g. :setting:`ATOMIC_REQUESTS
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<DATABASE-ATOMIC_REQUESTS>` set to ``True``), or Django's old autocommit
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behavior, in a project which runs without them; and further, such
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errors may manifest as data-corruption bugs.
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This change may cause test failures if you use ``select_for_update()``
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in a test class which is a subclass of
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:class:`~django.test.TransactionTestCase` rather than
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:class:`~django.test.TestCase`.
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Other bugfixes and changes
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==========================
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* Content retrieved from the GeoIP library is now properly decoded from its
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default ``iso-8859-1`` encoding
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(`#21996 <http://code.djangoproject.com/ticket/21996>`_).
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* Fixed ``AttributeError`` when using
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:meth:`~django.db.models.query.QuerySet.bulk_create` with ``ForeignObject``
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(`#21566 <http://code.djangoproject.com/ticket/21566>`_).
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* Fixed crash of ``QuerySet``\s that use ``F() + timedelta()`` when their query
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was compiled more once
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(`#21643 <http://code.djangoproject.com/ticket/21643>`_).
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* Prevented custom ``widget`` class attribute of
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:class:`~django.forms.IntegerField` subclasses from being overwritten by the
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code in their ``__init__`` method
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(`#22245 <http://code.djangoproject.com/ticket/22245>`_).
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* Improved :func:`~django.utils.html.strip_tags` accuracy (but it still cannot
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guarantee an HTML-safe result, as stated in the documentation).
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* Fixed a regression in the :mod:`django.contrib.gis` SQL compiler for
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non-concrete fields (`#22250 <http://code.djangoproject.com/ticket/22250>`_).
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* Fixed :attr:`ModelAdmin.preserve_filters
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<django.contrib.admin.ModelAdmin.preserve_filters>` when running a site with
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a URL prefix (`#21795 <http://code.djangoproject.com/ticket/21795>`_).
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* Fixed a crash in the ``find_command`` management utility when the ``PATH``
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environment variable wasn't set
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(`#22256 <http://code.djangoproject.com/ticket/22256>`_).
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* Fixed :djadmin:`changepassword` on Windows
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(`#22364 <https://code.djangoproject.com/ticket/22364>`_).
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* Fixed regression in ``prefetch_related`` that caused the related objects
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query to include an unnecessary join
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(`#21760 <https://code.djangoproject.com/ticket/21760>`_).
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Additionally, Django's vendored version of six, :mod:`django.utils.six` has been
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upgraded to the latest release (1.6.1).
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