delta/python-packages/sqlalchemy.git/lib/sqlalchemy/ext/declarative/base.py, branch rel_1_1

happy new year

2018-01-12T19:25:17+00:00

Change-Id: I3ef36bfd0cb0ba62b3123c8cf92370a43156cf8f
(cherry picked from commit 699272e4dcb9aa71ebbc0d9487fb6de82d3abc2b)

Protect against cls weakref becoming None

2017-05-08T22:37:40+00:00

Protected against testing "None" as a class in the case where
declarative classes are being garbage collected and new
automap prepare() operations are taking place concurrently, very
infrequently hitting a weakref that has not been fully acted upon
after gc.

Change-Id: I32e1dfc5ac46bac4127fe808cfd18368e2fad9dd
(cherry picked from commit 22570c3181ef4e98c548c2f6254a0c7585568f06)

Union the exclude_properties of the inheriting mapper in declarative

2017-01-30T22:28:22+00:00

Fixed bug where the "automatic exclude" feature of declarative that
ensures a column local to a single table inheritance subclass does
not appear as an attribute on other derivations of the base would
not take effect for multiple levels of subclassing from the base.

Change-Id: Ibf67b631b4870dd1bd159f7d6085549d299fffe0
Fixes: #3895

update for 2017 copyright

2017-01-04T17:39:24+00:00

Change-Id: I4e8c2aa8fe817bb2af8707410fa0201f938781de

Mention the correct way of adding multiple attributes which refer to the same column

2016-04-07T10:57:14+00:00

- happy new year

2016-01-29T16:20:22+00:00

- Fixed bug in :class:`.AbstractConcreteBase` extension where

2015-07-13T19:39:04+00:00

a column setup on the ABC base which had a different attribute
name vs. column name would not be correctly mapped on the final
base class.   The failure on 0.9 would be silent whereas on
1.0 it raised an ArgumentError, so may not have been noticed
prior to 1.0.
fixes #3480

- Fixed a regression regarding the :meth:`.MapperEvents.instrument_class`

2015-04-26T22:22:41+00:00

event where its invocation was moved to be after the class manager's
instrumentation of the class, which is the opposite of what the
documentation for the event explicitly states.  The rationale for the
switch was due to Declarative taking the step of setting up
the full "instrumentation manager" for a class before it was mapped
for the purpose of the new ``@declared_attr`` features
described in :ref:`feature_3150`, but the change was also made
against the classical use of :func:`.mapper` for consistency.
However, SQLSoup relies upon the instrumentation event happening
before any instrumentation under classical mapping.
The behavior is reverted in the case of classical and declarative
mapping, the latter implemented by using a simple memoization
without using class manager.
fixes #3388

- add the "strict" version of this lookup for abstract as well,

2015-04-24T21:03:34+00:00

fixes #3383

- Fixed regression regarding the declarative ``__declare_first__``

2015-04-24T17:49:09+00:00

and ``__declare_last__`` accessors where these would no longer be
called on the superclass of the declarative base.
fixes #3383