django1/docs/internals/deprecation.txt

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.. _internals-deprecation:
===========================
Django Deprecation Timeline
===========================
This document outlines when various pieces of Django will be removed, following
their deprecation, as per the :ref:`Django deprecation policy
<internal-release-deprecation-policy>`
* 1.3
* ``AdminSite.root()``. This release will remove the old method for
hooking up admin URLs. This has been deprecated since the 1.1
release.
* Authentication backends need to define the boolean attributes
``supports_object_permissions`` and ``supports_anonymous_user``.
The old backend style is deprecated since the 1.2 release.
* 1.4
* ``CsrfResponseMiddleware``. This has been deprecated since the 1.2
release, in favour of the template tag method for inserting the CSRF
token. ``CsrfMiddleware``, which combines ``CsrfResponseMiddleware``
and ``CsrfViewMiddleware``, is also deprecated.
* The old imports for CSRF functionality (``django.contrib.csrf.*``),
which moved to core in 1.2, will be removed.
* ``SMTPConnection``. The 1.2 release deprecated the ``SMTPConnection``
class in favor of a generic E-mail backend API.
* The many to many SQL generation functions on the database backends
will be removed.
* The ability to use the ``DATABASE_*`` family of top-level settings to
define database connections will be removed.
* The ability to use shorthand notation to specify a database backend
(i.e., ``sqlite3`` instead of ``django.db.backends.sqlite3``) will be
removed.
* The ``get_db_prep_save``, ``get_db_prep_value`` and
``get_db_prep_lookup`` methods on Field were modified in 1.2 to support
multiple databases. In 1.4, the support functions that allow methods
with the old prototype to continue working will be removed.
* The ``Message`` model (in ``django.contrib.auth``), its related
manager in the ``User`` model (``user.message_set``), and the
associated methods (``user.message_set.create()`` and
``user.get_and_delete_messages()``), which have
been deprecated since the 1.2 release, will be removed. The
:ref:`messages framework <ref-contrib-messages>` should be used
instead.
* Authentication backends need to support the ``obj`` parameter for
permission checking. The ``supports_object_permissions`` variable
is not checked any longer and can be removed.
* Authentication backends need to support the ``AnonymousUser``
being passed to all methods dealing with permissions.
The ``supports_anonymous_user`` variable is not checked any
longer and can be removed.
* The ability to specify a callable template loader rather than a
``Loader`` class will be removed, as will the ``load_template_source``
functions that are included with the built in template loaders for
backwards compatibility. These have been deprecated since the 1.2
release.
* ``django.utils.translation.get_date_formats()`` and
``django.utils.translation.get_partial_date_formats()``. These
functions are replaced by the new locale aware formatting; use
``django.utils.formats.get_format()`` to get the appropriate
formats.
* In ``django.forms.fields``: ``DEFAULT_DATE_INPUT_FORMATS``,
``DEFAULT_TIME_INPUT_FORMATS`` and
``DEFAULT_DATETIME_INPUT_FORMATS``. Use
``django.utils.formats.get_format()`` to get the appropriate
formats.
* The ability to use a function-based test runners will be removed,
along with the ``django.test.simple.run_tests()`` test runner.
* The ``views.feed()`` view and ``feeds.Feed`` class in
``django.contrib.syndication`` have been deprecated since the 1.2
release. The class-based view ``views.Feed`` should be used instead.
* ``django.core.context_processors.auth``. This release will
remove the old method in favor of the new method in
``django.contrib.auth.context_processors.auth``. This has been
deprecated since the 1.2 release.
* 2.0
* ``django.views.defaults.shortcut()``. This function has been moved
to ``django.contrib.contenttypes.views.shortcut()`` as part of the
goal of removing all ``django.contrib`` references from the core
Django codebase. The old shortcut will be removed in the 2.0
release.