Django 1.7.2 release notes

January 2, 2015

Django 1.7.2 fixes several bugs in 1.7.1.

Additionally, Django’s vendored version of six, django.utils.six, has been upgraded to the latest release (1.9.0).

Bugfixes

• Fixed migration’s renaming of auto-created many-to-many tables when changing Meta.db_table (#23630).
• Fixed a migration crash when adding an explicit id field to a model on SQLite (#23702).
• Added a warning for duplicate models when a module is reloaded. Previously a RuntimeError was raised every time two models clashed in the app registry. (#23621).
• Prevented flush from loading initial data for migrated apps (#23699).
• Fixed a makemessages regression in 1.7.1 when STATIC_ROOT has the default None value (#23717).
• Added GeoDjango compatibility with mysqlclient database driver.
• Fixed MySQL 5.6+ crash with GeometryFields in migrations (#23719).
• Fixed a migration crash when removing a field that is referenced in AlterIndexTogether or AlterUniqueTogether (#23614).
• Updated the first day of the week in the Ukrainian locale to Monday.
• Added support for transactional spatial metadata initialization on SpatiaLite 4.1+ (#23152).
• Fixed a migration crash that prevented changing a nullable field with a default to non-nullable with the same default (#23738).
• Fixed a migration crash when adding GeometryFields with blank=True on PostGIS (#23731).
• Allowed usage of DateTimeField() as Transform.output_field (#23420).
• Fixed a migration serializing bug involving float("nan") and float("inf") (#23770).
• Fixed a regression where custom form fields having a queryset attribute but no limit_choices_to could not be used in a ModelForm (#23795).
• Fixed a custom field type validation error with MySQL backend when db_type returned None (#23761).
• Fixed a migration crash when a field is renamed that is part of an index_together (#23859).
• Fixed squashmigrations to respect the --no-optimize parameter (#23799).
• Made RenameModel reversible (#22248)
• Avoided unnecessary rollbacks of migrations from other apps when migrating backwards (#23410).
• Fixed a rare query error when using deeply nested subqueries (#23605).
• Fixed a crash in migrations when deleting a field that is part of a index/unique_together constraint (#23794).
• Fixed django.core.files.File.__repr__() when the file’s name contains Unicode characters (#23888).
• Added missing context to the admin’s delete_selected view that prevented custom site header, etc. from appearing (#23898).
• Fixed a regression with dynamically generated inlines and allowed field references in the admin (#23754).
• Fixed an infinite loop bug for certain cyclic migration dependencies, and made the error message for cyclic dependencies much more helpful.
• Added missing index_together handling for SQLite (#23880).
• Fixed a crash when RunSQL SQL content was collected by the schema editor, typically when using sqlmigrate (#23909).
• Fixed a regression in contrib.admin add/change views which caused some ModelAdmin methods to receive the incorrect obj value (#23934).
• Fixed runserver crash when socket error message contained Unicode characters (#23946).
• Fixed serialization of type when adding a deconstruct() method (#23950).
• Prevented the django.contrib.auth.middleware.SessionAuthenticationMiddleware from setting a "Vary: Cookie" header on all responses (#23939).
• Fixed a crash when adding blank=True to TextField() on MySQL (#23920).
• Fixed index creation by the migration infrastructure, particularly when dealing with PostgreSQL specific {text|varchar}_pattern_ops indexes (#23954).
• Fixed bug in makemigrations that created broken migration files when dealing with multiple table inheritance and inheriting from more than one model (#23956).
• Fixed a crash when a MultiValueField has invalid data (#23674).
• Fixed a crash in the admin when using “Save as new” and also deleting a related inline (#23857).
• Always converted related_name to text (unicode), since that is required on Python 3 for interpolation. Removed conversion of related_name to text in migration deconstruction (#23455 and #23982).
• Enlarged the sizes of tablespaces which are created by default for testing on Oracle (the main tablespace was increased from 200M to 300M and the temporary tablespace from 100M to 150M). This was required to accommodate growth in Django’s own test suite (#23969).
• Fixed timesince filter translations in Korean (#23989).
• Fixed the SQLite SchemaEditor to properly add defaults in the absence of a user specified default. For example, a CharField with blank=True didn’t set existing rows to an empty string which resulted in a crash when adding the NOT NULL constraint (#23987).
• makemigrations no longer prompts for a default value when adding TextField() or CharField() without a default (#23405).
• Fixed a migration crash when adding order_with_respect_to to a table with existing rows (#23983).
• Restored the pre_migrate signal if all apps have migrations (#23975).
• Made admin system checks run for custom AdminSites (#23497).
• Ensured the app registry is fully populated when unpickling models. When an external script (like a queueing infrastructure) reloads pickled models, it could crash with an AppRegistryNotReady exception (#24007).
• Added quoting to field indexes in the SQL generated by migrations to prevent a crash when the index name requires it (##24015).
• Added datetime.time support to migrations questioner (#23998).
• Fixed admindocs crash on apps installed as eggs (#23525).
• Changed migrations autodetector to generate an AlterModelOptions operation instead of DeleteModel and CreateModel operations when changing Meta.managed. This prevents data loss when changing managed from False to True and vice versa (#24037).
• Enabled the sqlsequencereset command on apps with migrations (#24054).
• Added tablespace SQL to apps with migrations (#24051).
• Corrected contrib.sites default site creation in a multiple database setup (#24000).
• Restored support for objects that aren’t str or bytes in django.utils.safestring.mark_for_escaping() on Python 3.
• Supported strings escaped by third-party libraries with the __html__ convention in the template engine (#23831).
• Prevented extraneous DROP DEFAULT SQL in migrations (#23581).
• Restored the ability to use more than five levels of subqueries (#23758).
• Fixed crash when ValidationError is initialized with a ValidationError that is initialized with a dictionary (#24008).
• Prevented a crash on apps without migrations when running migrate --list (#23366).