In a normal relational construct, if you're listening for an event
that signals a child was deleted, you dont expect that the parent
was deleted already.
This change ensures that post_delete signals are fired immediately
after objects are deleted in the graph.
The tickets are either about different signature between qs.none() and
qs or problems with subclass types (either EmptyQS overrided the custom
qs class, or EmptyQS was overridden by another class - values() did
this).
Fixed#15959, fixed#17271, fixed#17712, fixed#19426
The guarantee that no queries will be made when accessing results is
done by new EmptyWhere class which is used for query.where and having.
Thanks to Simon Charette for reviewing and valuable suggestions.
When &'ing or |'ing querysets, wrong values could be cached, and crashes
could happen.
Thanks Marc Tamlyn for figuring out the problem and writing the patch.
F() expressions reuse joins like any lookup in a .filter() call -
reuse multijoins generated in the same .filter() call else generate
new joins. Also, lookups can now reuse joins generated by F().
This change is backwards incompatible, but it is required to prevent
dict randomization from generating different queries depending on
.filter() kwarg ordering. The new way is also more consistent in how
joins are reused.
A test in Model Forms test was specifically referring to a fixed
primary key, which was now being used up in a newly committed.
This has been worked around by specifying a higher primary
key.
When calling model_to_dict, improve performance of the generated SQL by
using values_list to determine primary keys of many to many objects. Add
a specific test for this function, test_model_to_dict_many_to_many
Thanks to brian for the original report and suggested fix.
Objects can be fast-path deleted if there are no signals, and there are
no further cascades. If fast-path is taken, the objects do not need to
be loaded into memory before deletion.
Thanks to Jeremy Dunck, Simon Charette and Alex Gaynor for reviewing
the patch.
Thanks to the many people that contributed to the development and review of
this patch, including (but not limited to) Jacob Kaplan-Moss, Anssi
Kääriäinen, Ramiro Morales, Preston Holmes, Josh Ourisman, Thomas Sutton,
and Roger Barnes, as well as the many, many people who have contributed to
the design discussion around this ticket over many years.
Squashed commit of the following:
commit d84749a0f0
Merge: 531e7717c11b1a
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Wed Sep 26 18:37:04 2012 +0800
Merge remote-tracking branch 'django/master' into t3011
commit 531e7715da
Merge: 29d1abb1f84b04
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Wed Sep 26 07:09:23 2012 +0800
Merged recent trunk changes.
commit 29d1abbe35
Merge: 8a527dd54c81a1
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Mon Sep 24 07:49:46 2012 +0800
Merge remote-tracking branch 'django/master' into t3011
commit 8a527dda13
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Mon Sep 24 07:48:05 2012 +0800
Ensure sequences are reset correctly in the presence of swapped models.
commit e2b6e22f29
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sun Sep 23 17:53:05 2012 +0800
Modifications to the handling and docs for auth forms.
commit 98aba856b5
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sun Sep 23 15:28:57 2012 +0800
Improved error handling and docs for get_user_model()
commit 0229209c84
Merge: 6494bf98599f64
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sun Sep 23 14:50:11 2012 +0800
Merged recent Django trunk changes.
commit 6494bf91f2
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Mon Sep 17 21:38:44 2012 +0800
Improved validation of swappable model settings.
commit 5a04cde342
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Mon Sep 17 07:15:14 2012 +0800
Removed some unused imports.
commit ffd535e413
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sun Sep 16 20:31:28 2012 +0800
Corrected attribute access on for get_by_natural_key
commit 913e1ac84c
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sun Sep 16 20:12:34 2012 +0800
Added test for proxy model safeguards on swappable models.
commit 280bf19e94
Merge: dbb3900935a863
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sun Sep 16 18:16:49 2012 +0800
Merge remote-tracking branch 'django/master' into t3011
commit dbb3900775
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sun Sep 16 18:09:27 2012 +0800
Fixes for Python 3 compatibility.
commit dfd72131d8
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sun Sep 16 15:54:30 2012 +0800
Added protection against proxying swapped models.
commit abcb027190
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sun Sep 16 15:11:10 2012 +0800
Cleanup and documentation of AbstractUser base class.
commit a9491a8776
Merge: fd8bb4e08bcb4a
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sun Sep 16 14:46:49 2012 +0800
Merge commit '08bcb4aec1ed154cefc631b8510ee13e9af0c19d' into t3011
commit fd8bb4e3e4
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sun Sep 16 14:20:14 2012 +0800
Documentation improvements coming from community review.
commit b550a6d06d
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sun Sep 16 13:52:47 2012 +0800
Refactored skipIfCustomUser into the contrib.auth tests.
commit 52a02f1110
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sun Sep 16 13:46:10 2012 +0800
Refactored common 'get' pattern into manager method.
commit b441a6bbc7
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sun Sep 16 13:41:33 2012 +0800
Added note about backwards incompatible change to admin login messages.
commit 08bcb4aec1
Author: Anssi Kääriäinen <akaariai@gmail.com>
Date: Sat Sep 15 18:30:33 2012 +0300
Splitted User to AbstractUser and User
commit d9f5e5addb
Author: Anssi Kääriäinen <akaariai@gmail.com>
Date: Sat Sep 15 18:30:02 2012 +0300
Reworked REQUIRED_FIELDS + create_user() interaction
commit 579f152e4a
Merge: 918497293e6733
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sat Sep 15 20:18:37 2012 +0800
Merge remote-tracking branch 'django/master' into t3011
commit 918497218c
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sat Sep 15 20:18:19 2012 +0800
Deprecate AUTH_PROFILE_MODULE and get_profile().
commit 334cdfc1bb
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sat Sep 15 20:00:12 2012 +0800
Added release notes for new swappable User feature.
commit 5d7bb22e8d
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sat Sep 15 19:59:49 2012 +0800
Ensure swapped models can't be queried.
commit 57ac6e3d32
Merge: f2ec915abfba3b
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sat Sep 15 14:31:54 2012 +0800
Merge remote-tracking branch 'django/master' into t3011
commit f2ec915b20
Merge: 19526565e99a3d
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sun Sep 9 08:29:51 2012 +0800
Merge remote-tracking branch 'django/master' into t3011
commit 19526563b5
Merge: 2c5e833c4aa26a
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sun Sep 9 08:22:26 2012 +0800
Merge recent changes from master.
commit 2c5e833a30
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sun Sep 9 07:53:46 2012 +0800
Corrected admin_views tests following removal of the email fallback on admin logins.
commit 20d1892491
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sun Sep 9 01:00:37 2012 +0800
Added conditional skips for all tests dependent on the default User model
commit 40ea8b8882
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sat Sep 8 23:47:02 2012 +0800
Added documentation for REQUIRED_FIELDS in custom auth.
commit e6aaf65970
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Sat Sep 8 23:20:02 2012 +0800
Added first draft of custom User docs.
Thanks to Greg Turner for the initial text.
commit 75118bd242
Author: Thomas Sutton <me@thomas-sutton.id.au>
Date: Mon Aug 20 11:17:26 2012 +0800
Admin app should not allow username discovery
The admin app login form should not allow users to discover the username
associated with an email address.
commit d088b3af58
Author: Thomas Sutton <me@thomas-sutton.id.au>
Date: Mon Aug 20 10:32:13 2012 +0800
Admin app login form should use swapped user model
commit 7e82e83d67
Merge: e29c01039aa890
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Fri Sep 7 23:45:03 2012 +0800
Merged master changes.
commit e29c010beb
Merge: 8e3fd7030bdf22
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Mon Aug 20 13:12:57 2012 +0800
Merge remote-tracking branch 'django/master' into t3011
commit 8e3fd703d0
Merge: 507bb5026e0ba0
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Mon Aug 20 13:09:09 2012 +0800
Merged recent changes from trunk.
commit 507bb50a92
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Mon Jun 4 20:41:37 2012 +0800
Modified auth app so that login with alternate auth app is possible.
commit dabe362836
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Mon Jun 4 20:10:51 2012 +0800
Modified auth management commands to handle custom user definitions.
commit 7cc0baf89d
Author: Russell Keith-Magee <russell@keith-magee.com>
Date: Mon Jun 4 14:17:28 2012 +0800
Added model Meta option for swappable models, and made auth.User a swappable model
Thanks to Jeremy Dunck for pointing out the problem with this change. If in a
single transaction, the master deletes a record and then get_or_creates a
similar record, under the new behavior the get_or_create would find the record
in the slave db and fail to re-create it, leaving the record nonexistent, which
violates the contract of get_or_create that the record should always exist
afterwards. We need to do everything against the master here in order to ensure
correctness.
This reverts commit 901af86550.
Unlike other model fields, the newly introduced (1.4)
GenericIPAddressField did not accept verbose_name and name as the
first positional arguments. This commit fixes it.
Thanks Dan McGee for the report and the patch.
