=========================== Django Deprecation Timeline =========================== This document outlines when various pieces of Django will be removed, following their deprecation, as per the :ref:`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. * The :mod:`django.contrib.gis.db.backend` module, including the ``SpatialBackend`` interface, is deprecated since the 1.2 release. 1.4 --- * ``CsrfResponseMiddleware``. This has been deprecated since the 1.2 release, in favor 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 :doc:`messages framework ` should be used instead. The related ``messages`` variable returned by the auth context processor will also be removed. Note that this means that the admin application depends on the messages context processor. * 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. * The ``postgresql`` database backend has been deprecated in favor of the ``postgresql_psycopg2`` backend. * The ``no`` language code has been deprecated in favor of the ``nb`` language code. * Authentication backends need to define the boolean attribute ``supports_inactive_user``. * ``django.db.models.fields.XMLField`` will be removed. This was deprecated as part of the 1.3 release. An accelerated deprecation schedule has been used because the field hasn't performed any role beyond that of a simple ``TextField`` since the removal of oldforms. All uses of ``XMLField`` can be replaced with ``TextField``. 1.5 --- * The ``mod_python`` request handler has been deprecated since the 1.3 release. The ``mod_wsgi`` handler should be used instead. * The ``template`` attribute on :class:`~django.test.client.Response` objects returned by the :ref:`test client ` has been deprecated since the 1.3 release. The :attr:`~django.test.client.Response.templates` attribute should be used instead. * The features of the :class:`django.test.simple.DjangoTestRunner` (including fail-fast and Ctrl-C test termination) can now be provided by the unittest-native :class:`TextTestRunner`. The :class:`~django.test.simple.DjangoTestRunner` will be removed in favor of using the unittest-native class. * The undocumented function :func:`django.contrib.formtools.utils.security_hash` is deprecated, in favor of :func:`django.contrib.formtools.utils.form_hmac` * The function-based generic views have been deprecated in favor of their class-based cousins. The following modules will be removed: * :mod:`django.views.generic.create_update` * :mod:`django.views.generic.date_based` * :mod:`django.views.generic.list_detail` * :mod:`django.views.generic.simple` * The :class:`~django.core.servers.basehttp.AdminMediaHandler` has been deprecated in favor of the :class:`~django.contrib.staticfiles.handlers.StaticFilesHandler`. * The :ttag:`url` and :ttag:`ssi` template tags will be modified so that the first argument to each tag is a template variable, not an implied string. The new-style behavior is provided in the ``future`` template tag library. * The :djadmin:`reset` and :djadmin:`sqlreset` management commands are deprecated. * Authentication backends need to support a inactive user being passed to all methods dealing with permissions. The ``supports_inactive_user`` variable is not checked any longer and can be removed. * :meth:`~django.contrib.gis.geos.GEOSGeometry.transform` will raise a :class:`~django.contrib.gis.geos.GEOSException` when called on a geometry with no SRID value. * :class:`~django.http.CompatCookie` will be removed in favor of :class:`~django.http.SimpleCookie`. * :class:`django.core.context_processors.PermWrapper` and :class:`django.core.context_processors.PermLookupDict` will be moved to :class:`django.contrib.auth.context_processors.PermWrapper` and :class:`django.contrib.auth.context_processors.PermLookupDict`, respectively. * The :setting:`MEDIA_URL` or :setting:`STATIC_URL` settings are required to end with a trailing slash to ensure there is a consistent way to combine paths in templates. 1.6 --- * The compatibility modules ``django.utils.copycompat`` and ``django.utils.hashcompat`` as well as the functions ``django.utils.itercompat.all`` and ``django.utils.itercompat.any`` have been deprecated since the 1.4 release. The native versions should be used instead. * The :func:`~django.views.decorators.csrf.csrf_response_exempt` and :func:`~django.views.decorators.csrf.csrf_view_exempt` decorators will be removed. Since 1.4 ``csrf_response_exempt`` has been a no-op (it returns the same function), and ``csrf_view_exempt`` has been a synonym for ``django.views.decorators.csrf.csrf_exempt``, which should be used to replace it. * The :class:`~django.core.cache.backends.memcached.CacheClass` backend was split into two in Django 1.3 in order to introduce support for PyLibMC. The historical :class:`~django.core.cache.backends.memcached.CacheClass` is now an alias for :class:`~django.core.cache.backends.memcached.MemcachedCache`. In Django 1.6, the historical alias will be removed. * The UK-prefixed objects of ``django.contrib.localflavor.uk`` will only be accessible through their new GB-prefixed names (GB is the correct ISO 3166 code for United Kingdom). They have been deprecated since the 1.4 release. * The :setting:`IGNORABLE_404_STARTS` and :setting:`IGNORABLE_404_ENDS` settings have been superseded by :setting:`IGNORABLE_404_URLS` in the 1.4 release. They will be removed. * The :doc:`form wizard ` has been refactored to use class based views with pluggable backends in 1.4. The previous implementation will be deprecated. * Legacy ways of calling :func:`~django.views.decorators.cache.cache_page` will be removed. * The backward-compatibility shim to automatically add a debug-false filter to the ``'mail_admins'`` logging handler will be removed. The :setting:`LOGGING` setting should include this filter explicitly if it is desired. * The template tag :func:`django.contrib.admin.templatetags.adminmedia.admin_media_prefix` was deprecated since Django 1.4 and will be removed in favor of the generic static files handling. * The builin truncation functions :func:`django.utils.text.truncate_words` and :func:`django.utils.text.truncate_html_words` were deprecated since Django 1.4 and will be removed in favor of the ``django.utils.text.Truncator`` class. 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.