1.7.txt 7.2 KB

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  1. ============================================
  2. Django 1.7 release notes - UNDER DEVELOPMENT
  3. ============================================
  4. Welcome to Django 1.7!
  5. These release notes cover the `new features`_, as well as some `backwards
  6. incompatible changes`_ you'll want to be aware of when upgrading from Django
  7. 1.6 or older versions. We've also dropped some features, which are detailed in
  8. :doc:`our deprecation plan </internals/deprecation>`, and we've `begun the
  9. deprecation process for some features`_.
  10. .. _`new features`: `What's new in Django 1.7`_
  11. .. _`backwards incompatible changes`: `Backwards incompatible changes in 1.7`_
  12. .. _`begun the deprecation process for some features`: `Features deprecated in 1.7`_
  13. Python compatibility
  14. ====================
  15. Django 1.7 requires Python 2.7 or above, though we **highly recommend**
  16. the latest minor release. Support for Python 2.6 has been dropped.
  17. This change should affect only a small number of Django users, as most
  18. operating-system vendors today are shipping Python 2.7 or newer as their default
  19. version. If you're still using Python 2.6, however, you'll need to stick to
  20. Django 1.6 until you can upgrade your Python version. Per :doc:`our support
  21. policy </internals/release-process>`, Django 1.6 will continue to receive
  22. security support until the release of Django 1.8.
  23. What's new in Django 1.7
  24. ========================
  25. Calling custom ``QuerySet`` methods from the ``Manager``
  26. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  27. The :meth:`QuerySet.as_manager() <django.db.models.query.QuerySet.as_manager>`
  28. class method has been added to :ref:`create Manager with QuerySet methods
  29. <create-manager-with-queryset-methods>`.
  30. Admin shortcuts support time zones
  31. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  32. The "today" and "now" shortcuts next to date and time input widgets in the
  33. admin are now operating in the :ref:`current time zone
  34. <default-current-time-zone>`. Previously, they used the browser time zone,
  35. which could result in saving the wrong value when it didn't match the current
  36. time zone on the server.
  37. In addition, the widgets now display a help message when the browser and
  38. server time zone are different, to clarify how the value inserted in the field
  39. will be interpreted.
  40. Minor features
  41. ~~~~~~~~~~~~~~
  42. * The new :attr:`UploadedFile.content_type_extra
  43. <django.core.files.uploadedfile.UploadedFile.content_type_extra>` attribute
  44. contains extra parameters passed to the ``content-type`` header on a file
  45. upload.
  46. * The ``enter`` argument was added to the
  47. :data:`~django.test.signals.setting_changed` signal.
  48. * The :meth:`QuerySet.update_or_create()
  49. <django.db.models.query.QuerySet.update_or_create>` method was added.
  50. * :attr:`~django.db.models.Options.app_label` is no longer required for models
  51. that are defined in a ``models`` package within an app.
  52. * The :meth:`Context.push() <django.template.Context.push>` method now returns
  53. a context manager which automatically calls :meth:`pop()
  54. <django.template.Context.pop>` upon exiting the ``with`` statement.
  55. Additionally, :meth:`push() <django.template.Context.push>` now accepts
  56. parameters that are passed to the ``dict`` constructor used to build the new
  57. context level.
  58. * The :class:`~django.utils.feedgenerator.Atom1Feed` syndication feed's
  59. ``updated`` element now utilizes `updateddate` instead of ``pubdate``,
  60. allowing the ``published`` element to be included in the feed (which
  61. relies on ``pubdate``).
  62. * Buttons in :mod:`django.contrib.admin` now use the ``border-radius`` CSS
  63. property for rounded corners rather than GIF background images.
  64. * Some admin templates now have ``app-<app_name>`` and ``model-<model_name>``
  65. classes in their ``<body>`` tag to allow customizing the CSS per app or per
  66. model.
  67. * The admin changelist cells now have a ``field-<field_name>`` class in the
  68. HTML to enable style customizations.
  69. * :func:`~django.core.mail.send_mail` now accepts an ``html_message``
  70. parameter for sending a multipart ``text/plain`` and ``text/html`` email.
  71. * The :djadminopt:`--no-color` option for ``django-admin.py`` allows you to
  72. disable the colorization of management command output.
  73. * The :mod:`sitemap framework<django.contrib.sitemaps>` now makes use of
  74. :attr:`~django.contrib.sitemaps.Sitemap.lastmod` to set a ``Last-Modified``
  75. header in the response. This makes it possible for the
  76. :class:`~django.middleware.http.ConditionalGetMiddleware` to handle
  77. conditional ``GET`` requests for sitemaps which set ``lastmod``.
  78. Backwards incompatible changes in 1.7
  79. =====================================
  80. .. warning::
  81. In addition to the changes outlined in this section, be sure to review the
  82. :doc:`deprecation plan </internals/deprecation>` for any features that
  83. have been removed. If you haven't updated your code within the
  84. deprecation timeline for a given feature, its removal may appear as a
  85. backwards incompatible change.
  86. Miscellaneous
  87. ~~~~~~~~~~~~~
  88. * The :meth:`django.core.files.uploadhandler.FileUploadHandler.new_file()`
  89. method is now passed an additional ``content_type_extra`` parameter. If you
  90. have a custom :class:`~django.core.files.uploadhandler.FileUploadHandler`
  91. that implements ``new_file()``, be sure it accepts this new parameter.
  92. * :class:`ModelFormSet<django.forms.models.BaseModelFormSet>`'s no longer
  93. delete instances when ``save(commit=False)`` is called. See
  94. :attr:`~django.forms.formsets.BaseFormSet.can_delete` for instructions on how
  95. to manually delete objects from deleted forms.
  96. * Loading empty fixtures emits a ``RuntimeWarning`` rather than raising
  97. :class:`~django.core.management.CommandError`.
  98. * :func:`django.contrib.staticfiles.views.serve` will now raise an
  99. :exc:`~django.http.Http404` exception instead of
  100. :exc:`~django.core.exceptions.ImproperlyConfigured` when :setting:`DEBUG`
  101. is ``False``. This change removes the need to conditionally add the view to
  102. your root URLconf, which in turn makes it safe to reverse by name. It also
  103. removes the ability for visitors to generate spurious HTTP 500 errors by
  104. requesting static files that don't exist or haven't been collected yet.
  105. Features deprecated in 1.7
  106. ==========================
  107. ``django.utils.dictconfig``/``django.utils.importlib``
  108. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  109. ``django.utils.dictconfig`` and ``django.utils.importlib`` were copies of
  110. respectively :mod:`logging.config` and :mod:`importlib` provided for Python
  111. versions prior to 2.7. They have been deprecated.
  112. ``django.utils.unittest``
  113. ~~~~~~~~~~~~~~~~~~~~~~~~~
  114. ``django.utils.unittest`` provided uniform access to the ``unittest2`` library
  115. on all Python versions. Since ``unittest2`` became the standard library's
  116. :mod:`unittest` module in Python 2.7, and Django 1.7 drops support for older
  117. Python versions, this module isn't useful anymore. It has been deprecated. Use
  118. :mod:`unittest` instead.
  119. Custom SQL location for models package
  120. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  121. Previously, if models were organized in a package (``myapp/models/``) rather
  122. than simply ``myapp/models.py``, Django would look for :ref:`initial SQL data
  123. <initial-sql>` in ``myapp/models/sql/``. This bug has been fixed so that Django
  124. will search ``myapp/sql/`` as documented. The old location will continue to
  125. work until Django 1.9.