delta/python-packages/sqlalchemy.git/lib/sqlalchemy/ext/declarative, branch ticket_4091 github.com: zzzeek/sqlalchemy.git Warnings for @declared_attr.cascading 2017-09-26T15:36:08+00:00 Mike Bayer mike_mp@zzzcomputing.com 2017-09-26T15:03:07+00:00 ec1700ba29f7f15859ee6576855a4d6675265640 A warning is emitted if a subclass attempts to override an attribute that was declared on a superclass using ``@declared_attr.cascading`` that the overridden attribute will be ignored. This use case cannot be fully supported down to further subclasses without more complex development efforts, so for consistency the "cascading" is honored all the way down regardless of overriding attributes. A warning is emitted if the ``@declared_attr.cascading`` attribute is used with a special declarative name such as ``__tablename__``, as this has no effect. Ensure that documenation refers to the current inconsistency that __tablename__ can be overridden by subclasses however @declared_attr.cascading cannot. Fixes: #4091 Fixes: #4092 Change-Id: I3aecdb2f99d408e404a1223f5ad86ae3c7fdf036 
A warning is emitted if a subclass attempts to override an attribute
that was declared on a superclass using ``@declared_attr.cascading``
that the overridden attribute will be ignored. This use
case cannot be fully supported down to further subclasses without more
complex development efforts, so for consistency the "cascading" is
honored all the way down regardless of overriding attributes.

A warning is emitted if the ``@declared_attr.cascading`` attribute is
used with a special declarative name such as ``__tablename__``, as this
has no effect.

Ensure that documenation refers to the current inconsistency that
__tablename__ can be overridden by subclasses however
@declared_attr.cascading cannot.

Fixes: #4091
Fixes: #4092
Change-Id: I3aecdb2f99d408e404a1223f5ad86ae3c7fdf036
Warn when declared_attr.cascading detected on mapped class 2017-06-06T21:16:58+00:00 Mike Bayer mike_mp@zzzcomputing.com 2017-06-06T21:13:54+00:00 4e1f5377d1c5443016cc6c5ae86b8053ead41647 A warning is emitted if the :attr:`.declared_attr.cascading` modifier is used with a declarative attribute that is itself declared on a class that is to be mapped, as opposed to a declarative mixin class or ``__abstract__`` class. The :attr:`.declared_attr.cascading` modifier currently only applies to mixin/abstract classes. Also add a test for @declared_attr.cascading when used on an attribute on __abstract__. Change-Id: Ib1b9dbe373e8be1cf24eadfed224a8988b3cd95d Fixes: #3847 
A warning is emitted if the :attr:`.declared_attr.cascading` modifier
is used with a declarative attribute that is itself declared on
a class that is to be mapped, as opposed to a declarative mixin
class or ``__abstract__`` class.  The :attr:`.declared_attr.cascading`
modifier currently only applies to mixin/abstract classes.

Also add a test for @declared_attr.cascading when used on an attribute
on __abstract__.

Change-Id: Ib1b9dbe373e8be1cf24eadfed224a8988b3cd95d
Fixes: #3847
Don't hard-evaluate non-ORM @declared_attr for AbstractConcreteBase 2017-05-26T17:28:15+00:00 Mike Bayer mike_mp@zzzcomputing.com 2017-05-26T17:26:40+00:00 8b82369347641d1c9d64406462fa5527132c4880 Fixed bug where using :class:`.declared_attr` on an :class:`.AbstractConcreteBase` where a particular return value were some non-mapped symbol, including ``None``, would cause the attribute to hard-evaluate just once and store the value to the object dictionary, not allowing it to invoke for subclasses. This behavior is normal when :class:`.declared_attr` is on a mapped class, and does not occur on a mixin or abstract class. Since :class:`.AbstractConcreteBase` is both "abstract" and actually "mapped", a special exception case is made here so that the "abstract" behavior takes precedence for :class:`.declared_attr`. Change-Id: I6160ebb3a52c441d6a4b663c8c9bbac6d37fa417 Fixes: #3848 
Fixed bug where using :class:`.declared_attr` on an
:class:`.AbstractConcreteBase` where a particular return value were some
non-mapped symbol, including ``None``, would cause the attribute
to hard-evaluate just once and store the value to the object
dictionary, not allowing it to invoke for subclasses.   This behavior
is normal when :class:`.declared_attr` is on a mapped class, and
does not occur on a mixin or abstract class.  Since
:class:`.AbstractConcreteBase` is both "abstract" and actually
"mapped", a special exception case is made here so that the
"abstract" behavior takes precedence for :class:`.declared_attr`.

Change-Id: I6160ebb3a52c441d6a4b663c8c9bbac6d37fa417
Fixes: #3848
Protect against cls weakref becoming None 2017-05-08T22:36:57+00:00 Mike Bayer mike_mp@zzzcomputing.com 2017-05-08T22:36:57+00:00 22570c3181ef4e98c548c2f6254a0c7585568f06 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 
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
Union the exclude_properties of the inheriting mapper in declarative 2017-01-30T22:28:22+00:00 Mike Bayer mike_mp@zzzcomputing.com 2017-01-26T21:11:49+00:00 9a5943bf76cd436484a85a6d9478507c9bac3b08 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 
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
Support python3.6 2017-01-13T15:57:41+00:00 Mike Bayer mike_mp@zzzcomputing.com 2017-01-11T15:12:12+00:00 fa6dd376bb24845724287d980a98ea50eb1cfab1 Corrects some warnings and adds tox config. Adds DeprecationWarning to the error category. Large sweep for string literals w/ backslashes as this is common in docstrings Co-authored-by: Andrii Soldatenko Fixes: #3886 Change-Id: Ia7c838dfbbe70b262622ed0803d581edc736e085 Pull-request: https://github.com/zzzeek/sqlalchemy/pull/337 
Corrects some warnings and adds tox config.  Adds DeprecationWarning
to the error category.   Large sweep for string literals w/ backslashes
as this is common in docstrings

Co-authored-by: Andrii Soldatenko
Fixes: #3886
Change-Id: Ia7c838dfbbe70b262622ed0803d581edc736e085
Pull-request: https://github.com/zzzeek/sqlalchemy/pull/337
update for 2017 copyright 2017-01-04T17:39:24+00:00 Mike Bayer mike_mp@zzzcomputing.com 2017-01-04T17:39:24+00:00 64e72b58fd74db0c5c87407c824d08ad699e5e8e Change-Id: I4e8c2aa8fe817bb2af8707410fa0201f938781de 
Change-Id: I4e8c2aa8fe817bb2af8707410fa0201f938781de
Remove some legacy dead code from the declared_attr logic 2016-10-16T14:45:54+00:00 Pierre Jaury pierre@jaury.eu 2016-10-16T14:45:54+00:00 d18221c542bf4d7381be2afdcd4c098698ff8eae The second 'if' condition was never called because the original condition always returns. 
The second 'if' condition was never called because the original
condition always returns.
- some documentation hits 2016-10-01T13:42:21+00:00 Mike Bayer mike_mp@zzzcomputing.com 2016-10-01T13:42:21+00:00 9bfd0289383bfcaf650fe516862df545dcf95c2e Change-Id: I468fe70168804b08cf0d5e8b57e235bca904b1ff 
Change-Id: I468fe70168804b08cf0d5e8b57e235bca904b1ff
Remove extra "return" statement in orm.ext.declared_attr.cascading examples 2016-10-01T13:27:47+00:00 Dmitry Bogun surabujin@surabujin.org.ua 2016-10-01T13:22:06+00:00 dce32062236001ed89258cfe60c89bbca5db18c5 Also improves some naming in the examples. Change-Id: I51e5b1d9a730885aed10e5e6ade2123f5e736359 Pull-request: https://github.com/zzzeek/sqlalchemy/pull/306 
Also improves some naming in the examples.

Change-Id: I51e5b1d9a730885aed10e5e6ade2123f5e736359
Pull-request: https://github.com/zzzeek/sqlalchemy/pull/306