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87 lines
3.8 KiB
Plaintext
87 lines
3.8 KiB
Plaintext
==========================
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Django 1.2.4 release notes
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==========================
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Welcome to Django 1.2.4!
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This is the fourth "bugfix" release in the Django 1.2 series,
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improving the stability and performance of the Django 1.2 codebase.
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With one exception, Django 1.2.4 maintains backwards compatibility
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with Django 1.2.3. It also contains a number of fixes and other
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improvements. Django 1.2.4 is a recommended upgrade for any
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development or deployment currently using or targeting Django 1.2.
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For full details on the new features, backwards incompatibilities, and
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deprecated features in the 1.2 branch, see the :doc:`/releases/1.2`.
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Backwards incompatible changes
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==============================
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Restricted filters in admin interface
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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The Django administrative interface, django.contrib.admin, supports
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filtering of displayed lists of objects by fields on the corresponding
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models, including across database-level relationships. This is
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implemented by passing lookup arguments in the querystring portion of
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the URL, and options on the ModelAdmin class allow developers to
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specify particular fields or relationships which will generate
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automatic links for filtering.
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One historically-undocumented and -unofficially-supported feature has
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been the ability for a user with sufficient knowledge of a model's
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structure and the format of these lookup arguments to invent useful
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new filters on the fly by manipulating the querystring.
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However, it has been demonstrated that this can be abused to gain
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access to information outside of an admin user's permissions; for
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example, an attacker with access to the admin and sufficient knowledge
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of model structure and relations could construct query strings which --
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with repeated use of regular-expression lookups supported by the
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Django database API -- expose sensitive information such as users'
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password hashes.
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To remedy this, django.contrib.admin will now validate that
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querystring lookup arguments either specify only fields on the model
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being viewed, or cross relations which have been explicitly
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whitelisted by the application developer using the pre-existing
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mechanism mentioned above. This is backwards-incompatible for any
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users relying on the prior ability to insert arbitrary lookups.
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One new feature
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===============
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Ordinarily, a point release would not include new features, but in the
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case of Django 1.2.4, we have made an exception to this rule.
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One of the bugs fixed in Django 1.2.4 involves a set of
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circumstances whereby a running a test suite on a multiple database
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configuration could cause the original source database (i.e., the
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actual production database) to be dropped, causing catastrophic loss
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of data. In order to provide a fix for this problem, it was necessary
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to introduce a new setting -- :setting:`TEST_DEPENDENCIES` -- that
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allows you to define any creation order dependencies in your database
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configuration.
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Most users -- even users with multiple-database configurations -- need
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not be concerned about the data loss bug, or the manual configuration of
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:setting:`TEST_DEPENDENCIES`. See the `original problem report`_
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documentation on :ref:`controlling the creation order of test
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databases <topics-testing-creation-dependencies>` for details.
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.. _original problem report: https://code.djangoproject.com/ticket/14415
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GeoDjango
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=========
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The function-based :setting:`TEST_RUNNER` previously used to execute
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the GeoDjango test suite, :func:`django.contrib.gis.tests.run_gis_tests`,
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was finally deprecated in favor of a class-based test runner,
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:class:`django.contrib.gis.tests.GeoDjangoTestSuiteRunner`, added in this
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release.
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In addition, the GeoDjango test suite is now included when
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:ref:`running the Django test suite <running-unit-tests>` with ``runtests.py``
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and using :ref:`spatial database backends <spatial-backends>`.
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