delta/python-packages/sqlalchemy.git/lib/sqlalchemy/ext/associationproxy.py, branch rel_0_9

- copyright 2015

2015-03-10T19:27:20+00:00

Fix slice addressing of _AssociationList with python3

2015-03-10T18:57:14+00:00

(cherry picked from commit 9fee9cb87e0d13db4426664f5758c1ddad0533e3)

PEP8 style fixes

2014-07-14T00:21:06+00:00

- break up the copyright comment as part of a pass

2014-07-09T22:29:17+00:00

  to get all flake8 passing

- Fixed bug in association proxy where assigning an empty slice

2014-03-04T15:59:27+00:00

(e.g. ``x[:] = [...]``) would fail on Py3k.

- Fixed a regression in association proxy caused by :ticket:`2810` which

2014-02-27T18:29:59+00:00

caused a user-provided "getter" to no longer receive values of ``None``
when fetching scalar values from a target that is non-present.  The
check for None introduced by this change is now moved into the default
getter, so a user-provided getter will also again receive values of
None.
re: #2810

- happy new year

2014-01-05T21:57:05+00:00

- catch the metadata on ScalarTest.test_scalar_proxy, this has been leaving itself

2013-10-25T21:56:53+00:00

around for a long time
- association proxy now returns None for proxied scalar that is also None, rather
than raising AttributeError. [ticket:2810]

Added additional criterion to the ==, != comparators, used with

2013-06-08T17:23:15+00:00

scalar values, for comparisons to None to also take into account
the association record itself being non-present, in addition to the
existing test for the scalar endpoint on the association record
being NULL.  Previously, comparing ``Cls.scalar == None`` would return
records for which ``Cls.associated`` were present and
``Cls.associated.scalar`` is None, but not rows for which
``Cls.associated`` is non-present.  More significantly, the
inverse operation ``Cls.scalar != None`` *would* return ``Cls``
rows for which ``Cls.associated`` was non-present.

Additionally, added a special use case where you
can call ``Cls.scalar.has()`` with no arguments,
when ``Cls.scalar`` is a column-based value - this returns whether or
not ``Cls.associated`` has any rows present, regardless of whether
or not ``Cls.associated.scalar`` is NULL or not.
[ticket:2751]

clean up some of this collection stuff

2013-05-27T00:17:22+00:00