499 lines
14 KiB
Plaintext
499 lines
14 KiB
Plaintext
=============================================
|
|
Django 1.10 release notes - UNDER DEVELOPMENT
|
|
=============================================
|
|
|
|
Welcome to Django 1.10!
|
|
|
|
These release notes cover the `new features`_, as well as some `backwards
|
|
incompatible changes`_ you'll want to be aware of when upgrading from Django
|
|
1.9 or older versions. We've :ref:`dropped some features<removed-features-1.10>`
|
|
that have reached the end of their deprecation cycle, and we've `begun the
|
|
deprecation process for some features`_.
|
|
|
|
.. _`new features`: `What's new in Django 1.10`_
|
|
.. _`backwards incompatible changes`: `Backwards incompatible changes in 1.10`_
|
|
.. _`dropped some features`: `Features removed in 1.10`_
|
|
.. _`begun the deprecation process for some features`: `Features deprecated in 1.10`_
|
|
|
|
Python compatibility
|
|
====================
|
|
|
|
Like Django 1.9, Django 1.10 requires Python 2.7, 3.4, or 3.5. We **highly
|
|
recommend** and only officially support the latest release of each series.
|
|
|
|
What's new in Django 1.10
|
|
=========================
|
|
|
|
...
|
|
|
|
Minor features
|
|
~~~~~~~~~~~~~~
|
|
|
|
:mod:`django.contrib.admin`
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
* For sites running on a subpath, the default :attr:`URL for the "View site"
|
|
link <django.contrib.admin.AdminSite.site_url>` at the top of each admin page
|
|
will now point to ``request.META['SCRIPT_NAME']`` if set, instead of ``/``.
|
|
|
|
:mod:`django.contrib.admindocs`
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
* ...
|
|
|
|
:mod:`django.contrib.auth`
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
* The default iteration count for the PBKDF2 password hasher has been increased
|
|
by 25%. This backwards compatible change will not affect users who have
|
|
subclassed ``django.contrib.auth.hashers.PBKDF2PasswordHasher`` to change the
|
|
default value.
|
|
|
|
* The :func:`~django.contrib.auth.views.logout` view sends "no-cache" headers
|
|
to prevent an issue where Safari caches redirects and prevents a user from
|
|
being able to log out.
|
|
|
|
:mod:`django.contrib.contenttypes`
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
* ...
|
|
|
|
:mod:`django.contrib.gis`
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
* :ref:`Distance lookups <distance-lookups>` now accept expressions as the
|
|
distance value parameter.
|
|
|
|
:mod:`django.contrib.messages`
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
* ...
|
|
|
|
:mod:`django.contrib.postgres`
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
* ...
|
|
|
|
:mod:`django.contrib.redirects`
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
* ...
|
|
|
|
:mod:`django.contrib.sessions`
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
* The :djadmin:`clearsessions` management command now removes file-based
|
|
sessions.
|
|
|
|
:mod:`django.contrib.sitemaps`
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
* ...
|
|
|
|
:mod:`django.contrib.sites`
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
* ...
|
|
|
|
:mod:`django.contrib.staticfiles`
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
* ...
|
|
|
|
:mod:`django.contrib.syndication`
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
* ...
|
|
|
|
Cache
|
|
^^^^^
|
|
|
|
* The file-based cache backend now uses the highest pickling protocol.
|
|
|
|
CSRF
|
|
^^^^
|
|
|
|
* ...
|
|
|
|
Database backends
|
|
^^^^^^^^^^^^^^^^^
|
|
|
|
* ...
|
|
|
|
Email
|
|
^^^^^
|
|
|
|
* ...
|
|
|
|
File Storage
|
|
^^^^^^^^^^^^
|
|
|
|
* ...
|
|
|
|
File Uploads
|
|
^^^^^^^^^^^^
|
|
|
|
* ...
|
|
|
|
Forms
|
|
^^^^^
|
|
|
|
* ...
|
|
|
|
Generic Views
|
|
^^^^^^^^^^^^^
|
|
|
|
* ...
|
|
|
|
Internationalization
|
|
^^^^^^^^^^^^^^^^^^^^
|
|
|
|
* ...
|
|
|
|
Management Commands
|
|
^^^^^^^^^^^^^^^^^^^
|
|
|
|
* The new :djadminopt:`--fail-level` option of the :djadmin:`check` command
|
|
allows specifying the message level that will cause the command to exit with
|
|
a non-zero status.
|
|
|
|
* The new :djadminopt:`makemigrations --check <--check>` option makes the
|
|
command exit with a non-zero status when model changes without migrations are
|
|
detected.
|
|
|
|
Migrations
|
|
^^^^^^^^^^
|
|
|
|
* ...
|
|
|
|
Models
|
|
^^^^^^
|
|
|
|
* Reverse foreign keys from proxy models are now propagated to their
|
|
concrete class. The reverse relation attached by a
|
|
:class:`~django.db.models.ForeignKey` pointing to a proxy model is now
|
|
accessible as a descriptor on the proxied model class and may be referenced in
|
|
queryset filtering.
|
|
|
|
* The :attr:`~django.db.models.Func.arity` class attribute is added to
|
|
:class:`~django.db.models.Func`. This attribute can be used to set the number
|
|
of arguments the function accepts.
|
|
|
|
Requests and Responses
|
|
^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
* Added ``request.user`` to the debug view.
|
|
|
|
* Added :class:`~django.http.HttpResponse` methods
|
|
:meth:`~django.http.HttpResponse.readable()` and
|
|
:meth:`~django.http.HttpResponse.seekable()` to make an instance a
|
|
stream-like object and allow wrapping it with :py:class:`io.TextIOWrapper`.
|
|
|
|
Serialization
|
|
^^^^^^^^^^^^^
|
|
|
|
* The ``django.core.serializers.json.DjangoJSONEncoder`` now knows how to
|
|
serialize lazy strings, typically used for translatable content.
|
|
|
|
Signals
|
|
^^^^^^^
|
|
|
|
* ...
|
|
|
|
Templates
|
|
^^^^^^^^^
|
|
|
|
* ...
|
|
|
|
Tests
|
|
^^^^^
|
|
|
|
* ...
|
|
|
|
URLs
|
|
^^^^
|
|
|
|
* An addition in :func:`django.setup()` allows URL resolving that happens
|
|
outside of the request/response cycle (e.g. in management commands and
|
|
standalone scripts) to take :setting:`FORCE_SCRIPT_NAME` into account when it
|
|
is set.
|
|
|
|
Validators
|
|
^^^^^^^^^^
|
|
|
|
* ...
|
|
|
|
Backwards incompatible changes in 1.10
|
|
======================================
|
|
|
|
.. warning::
|
|
|
|
In addition to the changes outlined in this section, be sure to review the
|
|
:ref:`removed-features-1.10` for the features that have reached the end of
|
|
their deprecation cycle and therefore been removed. If you haven't updated
|
|
your code within the deprecation timeline for a given feature, its removal
|
|
may appear as a backwards incompatible change.
|
|
|
|
Database backend API
|
|
~~~~~~~~~~~~~~~~~~~~
|
|
|
|
* ...
|
|
|
|
``select_related()`` prohibits non-relational fields for nested relations
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
Django 1.8 added validation for non-relational fields in ``select_related()``::
|
|
|
|
>>> Book.objects.select_related('title')
|
|
Traceback (most recent call last):
|
|
...
|
|
FieldError: Non-relational field given in select_related: 'title'
|
|
|
|
But it didn't prohibit nested non-relation fields as it does now::
|
|
|
|
>>> Book.objects.select_related('author__name')
|
|
Traceback (most recent call last):
|
|
...
|
|
FieldError: Non-relational field given in select_related: 'name'
|
|
|
|
``_meta.get_fields()`` returns consistent reverse fields for proxy models
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
Before Django 1.10, the :meth:`~django.db.models.options.Options.get_fields`
|
|
method returned different reverse fields when called on a proxy model compared
|
|
to its proxied concrete class. This inconsistency was fixed by returning the
|
|
full set of fields pointing to a concrete class or one of its proxies in both
|
|
cases.
|
|
|
|
:attr:`AbstractUser.username <django.contrib.auth.models.User.username>` ``max_length`` increased to 254
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
A migration for :attr:`django.contrib.auth.models.User.username` is included.
|
|
If you have a custom user model inheriting from ``AbstractUser``, you'll need
|
|
to generate and apply a database migration for your user model.
|
|
|
|
If you want to preserve the 30 character limit for usernames, use a custom form
|
|
when creating a user or changing usernames::
|
|
|
|
from django.contrib.auth.forms import UserCreationForm
|
|
|
|
class MyUserCreationForm(UserCreationForm):
|
|
username = forms.CharField(
|
|
max_length=30,
|
|
help_text='Required. 30 characters or fewer. Letters, digits and @/./+/-/_ only.',
|
|
)
|
|
|
|
If you wish to keep this restriction in the admin, set ``UserAdmin.add_form``
|
|
to use this form::
|
|
|
|
from django.contrib.auth.admin import UserAdmin
|
|
from django.contrib.auth.models import User
|
|
|
|
class MyUserAdmin(UserAdmin):
|
|
add_form = MyUserCreationForm
|
|
|
|
admin.site.unregister(User)
|
|
admin.site.register(User, MyUserAdmin)
|
|
|
|
Miscellaneous
|
|
~~~~~~~~~~~~~
|
|
|
|
* The ``repr()`` of a ``QuerySet`` is wrapped in ``<QuerySet >`` to
|
|
disambiguate it from a plain list when debugging.
|
|
|
|
* Support for SpatiaLite < 3.0 and GEOS < 3.3 is dropped.
|
|
|
|
.. _deprecated-features-1.10:
|
|
|
|
Features deprecated in 1.10
|
|
===========================
|
|
|
|
Direct assignment to a reverse foreign key or many-to-many relation
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
Instead of assigning related objects using direct assignment::
|
|
|
|
>>> new_list = [obj1, obj2, obj3]
|
|
>>> e.related_set = new_list
|
|
|
|
Use the :meth:`~django.db.models.fields.related.RelatedManager.set` method
|
|
added in Django 1.9::
|
|
|
|
>>> e.related_set.set([obj1, obj2, obj3])
|
|
|
|
This prevents confusion about an assignment resulting in an implicit save.
|
|
|
|
Miscellaneous
|
|
~~~~~~~~~~~~~
|
|
|
|
* The ``makemigrations --exit`` option is deprecated in favor of the
|
|
:djadminopt:`--check` option.
|
|
|
|
.. _removed-features-1.10:
|
|
|
|
Features removed in 1.10
|
|
========================
|
|
|
|
These features have reached the end of their deprecation cycle and so have been
|
|
removed in Django 1.10 (please see the :ref:`deprecation timeline
|
|
<deprecation-removed-in-1.10>` for more details):
|
|
|
|
* Support for calling a ``SQLCompiler`` directly as an alias for calling its
|
|
``quote_name_unless_alias`` method is removed.
|
|
|
|
* The ``cycle`` and ``firstof`` template tags are removed from the ``future``
|
|
template tag library.
|
|
|
|
* ``django.conf.urls.patterns()`` is removed.
|
|
|
|
* Support for the ``prefix`` argument to
|
|
``django.conf.urls.i18n.i18n_patterns()`` is removed.
|
|
|
|
* ``SimpleTestCase.urls`` is removed.
|
|
|
|
* Using an incorrect count of unpacked values in the ``for`` template tag
|
|
raises an exception rather than failing silently.
|
|
|
|
* The ability to :func:`~django.core.urlresolvers.reverse` URLs using a dotted
|
|
Python path is removed.
|
|
|
|
* Support for ``optparse`` is dropped for custom management commands.
|
|
|
|
* The class ``django.core.management.NoArgsCommand`` is removed.
|
|
|
|
* ``django.core.context_processors`` module is removed.
|
|
|
|
* ``django.db.models.sql.aggregates`` module is removed.
|
|
|
|
* ``django.contrib.gis.db.models.sql.aggregates`` module is removed.
|
|
|
|
* The following methods and properties of ``django.db.sql.query.Query`` are
|
|
removed:
|
|
|
|
* Properties: ``aggregates`` and ``aggregate_select``
|
|
* Methods: ``add_aggregate``, ``set_aggregate_mask``, and
|
|
``append_aggregate_mask``.
|
|
|
|
* ``django.template.resolve_variable`` is removed.
|
|
|
|
* The following private APIs are removed from
|
|
:class:`django.db.models.options.Options` (``Model._meta``):
|
|
|
|
* ``get_field_by_name()``
|
|
* ``get_all_field_names()``
|
|
* ``get_fields_with_model()``
|
|
* ``get_concrete_fields_with_model()``
|
|
* ``get_m2m_with_model()``
|
|
* ``get_all_related_objects()``
|
|
* ``get_all_related_objects_with_model()``
|
|
* ``get_all_related_many_to_many_objects()``
|
|
* ``get_all_related_m2m_objects_with_model()``
|
|
|
|
* The ``error_message`` argument of ``django.forms.RegexField`` is removed.
|
|
|
|
* The ``unordered_list`` filter no longer supports old style lists.
|
|
|
|
* Support for string ``view`` arguments to ``url()`` is removed.
|
|
|
|
* The backward compatible shim to rename ``django.forms.Form._has_changed()``
|
|
to ``has_changed()`` is removed.
|
|
|
|
* The ``removetags`` template filter is removed.
|
|
|
|
* The ``remove_tags()`` and ``strip_entities()`` functions in
|
|
``django.utils.html`` is removed.
|
|
|
|
* The ``is_admin_site`` argument to
|
|
``django.contrib.auth.views.password_reset()`` is removed.
|
|
|
|
* ``django.db.models.field.subclassing.SubfieldBase`` is removed.
|
|
|
|
* ``django.utils.checksums`` is removed.
|
|
|
|
* The ``original_content_type_id`` attribute on
|
|
``django.contrib.admin.helpers.InlineAdminForm`` is removed.
|
|
|
|
* The backwards compatibility shim to allow ``FormMixin.get_form()`` to be
|
|
defined with no default value for its ``form_class`` argument is removed.
|
|
|
|
* The following settings are removed:
|
|
|
|
* ``ALLOWED_INCLUDE_ROOTS``
|
|
* ``TEMPLATE_CONTEXT_PROCESSORS``
|
|
* ``TEMPLATE_DEBUG``
|
|
* ``TEMPLATE_DIRS``
|
|
* ``TEMPLATE_LOADERS``
|
|
* ``TEMPLATE_STRING_IF_INVALID``
|
|
|
|
* The backwards compatibility alias ``django.template.loader.BaseLoader`` is
|
|
removed.
|
|
|
|
* Django template objects returned by
|
|
:func:`~django.template.loader.get_template` and
|
|
:func:`~django.template.loader.select_template` no longer accept a
|
|
:class:`~django.template.Context` in their
|
|
:meth:`~django.template.backends.base.Template.render()` method.
|
|
|
|
* :doc:`Template response APIs </ref/template-response>` enforce the use of
|
|
:class:`dict` and backend-dependent template objects instead of
|
|
:class:`~django.template.Context` and :class:`~django.template.Template`
|
|
respectively.
|
|
|
|
* The ``current_app`` parameter for the following function and classes is
|
|
removed:
|
|
|
|
* ``django.shortcuts.render()``
|
|
* ``django.template.Context()``
|
|
* ``django.template.RequestContext()``
|
|
* ``django.template.response.TemplateResponse()``
|
|
|
|
* The ``dictionary`` and ``context_instance`` parameters for the following
|
|
functions are removed:
|
|
|
|
* ``django.shortcuts.render()``
|
|
* ``django.shortcuts.render_to_response()``
|
|
* ``django.template.loader.render_to_string()``
|
|
|
|
* The ``dirs`` parameter for the following functions is removed:
|
|
|
|
* ``django.template.loader.get_template()``
|
|
* ``django.template.loader.select_template()``
|
|
* ``django.shortcuts.render()``
|
|
* ``django.shortcuts.render_to_response()``
|
|
|
|
* Session verification is enabled regardless of whether or not
|
|
``'django.contrib.auth.middleware.SessionAuthenticationMiddleware'`` is in
|
|
``MIDDLEWARE_CLASSES``. ``SessionAuthenticationMiddleware`` no longer has
|
|
any purpose and can be removed from ``MIDDLEWARE_CLASSES``. It's kept as
|
|
a stub until Django 2.0 as a courtesy for users who don't read this note.
|
|
|
|
* Private attribute ``django.db.models.Field.related`` is removed.
|
|
|
|
* The ``--list`` option of the ``migrate`` management command is removed.
|
|
|
|
* The ``ssi`` template tag is removed.
|
|
|
|
* Support for the ``=`` comparison operator in the ``if`` template tag is
|
|
removed.
|
|
|
|
* The backwards compatibility shims to allow ``Storage.get_available_name()``
|
|
and ``Storage.save()`` to be defined without a ``max_length`` argument are
|
|
removed.
|
|
|
|
* Support for the legacy ``%(<foo>)s`` syntax in ``ModelFormMixin.success_url``
|
|
is removed.
|
|
|
|
* ``GeoQuerySet`` aggregate methods ``collect()``, ``extent()``, ``extent3d()``,
|
|
``make_line()``, and ``unionagg()`` are removed.
|
|
|
|
* The ability to specify ``ContentType.name`` when creating a content type
|
|
instance is removed.
|
|
|
|
* Support for the old signature of ``allow_migrate`` is removed.
|
|
|
|
* Support for the syntax of ``{% cycle %}`` that uses comma-separated arguments
|
|
is removed.
|
|
|
|
* The warning that :class:`~django.core.signing.Signer` issued when given an
|
|
invalid separator is now a ``ValueError``.
|