delta/python-packages/sqlalchemy.git/test/ext/declarative/test_inheritance.py, branch 2020_tutorial github.com: zzzeek/sqlalchemy.git Open up check for relationships that write to the same column 2020-02-27T20:55:06+00:00 Mike Bayer mike_mp@zzzcomputing.com 2020-02-26T21:51:32+00:00 e5e5bb640abc5c98b39a6a3a955a20ef1525fc02 Enhanced logic that tracks if relationships will be conflicting with each other when they write to the same column to include simple cases of two relationships that should have a "backref" between them. This means that if two relationships are not viewonly, are not linked with back_populates and are not otherwise in an inheriting sibling/overriding arrangement, and will populate the same foreign key column, a warning is emitted at mapper configuration time warning that a conflict may arise. A new parameter :paramref:`.relationship.overlaps` is added to suit those very rare cases where such an overlapping persistence arrangement may be unavoidable. Fixes: #5171 Change-Id: Ifae5998fc1c7e49ce059aec8a67c80cabee768ad 
Enhanced logic that tracks if relationships will be conflicting with each
other when they write to the same column to include simple cases of two
relationships that should have a "backref" between them.   This means that
if two relationships are not viewonly, are not linked with back_populates
and are not otherwise in an inheriting sibling/overriding arrangement, and
will populate the same foreign key column, a warning is emitted at mapper
configuration time warning that a conflict may arise.  A new parameter
:paramref:`.relationship.overlaps` is added to suit those very rare cases
where such an overlapping persistence arrangement may be unavoidable.

Fixes: #5171
Change-Id: Ifae5998fc1c7e49ce059aec8a67c80cabee768ad
Add informative failure modes to _DeferredMapperConfig 2019-01-31T03:06:27+00:00 Mike Bayer mike_mp@zzzcomputing.com 2019-01-30T05:53:10+00:00 147f6d382c3b6f06c8efa5a24c07c9849473e7af Added some helper exceptions that invoke when a mapping based on :class:`.AbstractConcreteBase`, :class:`.DeferredReflection`, or :class:`.AutoMap` is used before the mapping is ready to be used, which contain descriptive information on the class, rather than falling through into other failure modes that are less informative. Fixes: #4470 Change-Id: I9bc51697f63cedaa7809a0adb17b2398c209e289 
Added some helper exceptions that invoke when a mapping based on
:class:`.AbstractConcreteBase`, :class:`.DeferredReflection`, or
:class:`.AutoMap` is used before the mapping is ready to be used, which
contain descriptive information on the class, rather than falling through
into other failure modes that are less informative.

Fixes: #4470
Change-Id: I9bc51697f63cedaa7809a0adb17b2398c209e289
Add standalone orm.close_all method and deprecate SessionMaker.close_all 2019-01-12T22:19:37+00:00 Augustin Trancart augustin.trancart@oslandia.com 2019-01-12T15:46:01+00:00 8fac612ec0de7da6dc6f5153833f4430a80d2f4c Added a new function :func:`.close_all_sessions` which takes over the task of the :meth:`.Session.close_all` method, which is now deprecated as this is confusing as a classmethod. Pull request courtesy Augustin Trancart. Fixes: #4412 Closes: #4438 Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/4438 Pull-request-sha: 7833d12a9898c82d50716427144bf3276c22ab3f Change-Id: Ib35eaa520ae886f3f8f550f9712fc3b139e00b60 
Added a new function :func:`.close_all_sessions` which takes
over the task of the :meth:`.Session.close_all` method, which
is now deprecated as this is confusing as a classmethod.
Pull request courtesy Augustin Trancart.

Fixes: #4412

Closes: #4438
Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/4438
Pull-request-sha: 7833d12a9898c82d50716427144bf3276c22ab3f

Change-Id: Ib35eaa520ae886f3f8f550f9712fc3b139e00b60
Post black reformatting 2019-01-06T23:23:11+00:00 Mike Bayer mike_mp@zzzcomputing.com 2019-01-06T06:19:47+00:00 1e278de4cc9a4181e0747640a960e80efcea1ca9 Applied on top of a pure run of black -l 79 in I7eda77fed3d8e73df84b3651fd6cfcfe858d4dc9, this set of changes resolves all remaining flake8 conditions for those codes we have enabled in setup.cfg. Included are resolutions for all remaining flake8 issues including shadowed builtins, long lines, import order, unused imports, duplicate imports, and docstring issues. Change-Id: I4f72d3ba1380dd601610ff80b8fb06a2aff8b0fe 
Applied on top of a pure run of black -l 79 in
I7eda77fed3d8e73df84b3651fd6cfcfe858d4dc9,  this set of changes
resolves all remaining flake8 conditions for those codes
we have enabled in setup.cfg.

Included are resolutions for all remaining flake8 issues
including shadowed builtins, long lines, import order, unused
imports, duplicate imports, and docstring issues.

Change-Id: I4f72d3ba1380dd601610ff80b8fb06a2aff8b0fe
Run black -l 79 against all source files 2019-01-06T17:34:50+00:00 Mike Bayer mike_mp@zzzcomputing.com 2019-01-06T06:14:26+00:00 1e1a38e7801f410f244e4bbb44ec795ae152e04e This is a straight reformat run using black as is, with no edits applied at all. The black run will format code consistently, however in some cases that are prevalent in SQLAlchemy code it produces too-long lines. The too-long lines will be resolved in the following commit that will resolve all remaining flake8 issues including shadowed builtins, long lines, import order, unused imports, duplicate imports, and docstring issues. Change-Id: I7eda77fed3d8e73df84b3651fd6cfcfe858d4dc9 
This is a straight reformat run using black as is, with no edits
applied at all.

The black run will format code consistently, however in
some cases that are prevalent in SQLAlchemy code it produces
too-long lines.   The too-long lines will be resolved in the
following commit that will resolve all remaining flake8 issues
including shadowed builtins, long lines, import order, unused
imports, duplicate imports, and docstring issues.

Change-Id: I7eda77fed3d8e73df84b3651fd6cfcfe858d4dc9
Move pk on single-inh subclass check below conflict resolution check 2018-10-30T17:21:52+00:00 Tom Manderson me@trm.io 2018-10-30T17:05:43+00:00 3ed79a5c18c14d842280805d1dae8a9c99ec8f18 The column conflict resolution technique discussed at :ref:`declarative_column_conflicts` is now functional for a :class:`.Column` that is also a primary key column. Previously, a check for primary key columns declared on a single-inheritance subclass would occur before the column copy were allowed to pass. Fixes: #4352 Change-Id: Id4c025da53c28e58db6b549fe398f25f8a90d355 Pull-request: https://github.com/zzzeek/sqlalchemy/pull/483 
The column conflict resolution technique discussed at
:ref:`declarative_column_conflicts` is now functional for a :class:`.Column`
that is also a primary key column.  Previously, a check for primary key
columns declared on a single-inheritance subclass would occur before the
column copy were allowed to pass.

Fixes: #4352
Change-Id: Id4c025da53c28e58db6b549fe398f25f8a90d355
Pull-request: https://github.com/zzzeek/sqlalchemy/pull/483
Accommodate for classically mapped base classes in declarative 2018-08-17T15:42:31+00:00 Mike Bayer mike_mp@zzzcomputing.com 2018-08-17T15:37:30+00:00 4c931b2ec7e0f09ac8c3ebe28c794f5858d54efb Fixed issue in previously untested use case, allowing a declarative mapped class to inherit from a classically-mapped class outside of the declarative base, including that it accommodates for unmapped intermediate classes. An unmapped intermediate class may specify ``__abstract__``, which is now interpreted correctly, or the intermediate class can remain unmarked, and the classically mapped base class will be detected within the hierarchy regardless. In order to anticipate existing scenarios which may be mixing in classical mappings into existing declarative hierarchies, an error is now raised if multiple mapped bases are detected for a given class. Fixes: #4321 Change-Id: I8604ecfd170d2589d9d1b1c87ba303762071fc30 
Fixed issue in previously untested use case, allowing a declarative mapped
class to inherit from a classically-mapped class outside of the declarative
base, including that it accommodates for unmapped intermediate classes. An
unmapped intermediate class may specify ``__abstract__``, which is now
interpreted correctly, or the intermediate class can remain unmarked, and
the classically mapped base class will be detected within the hierarchy
regardless. In order to anticipate existing scenarios which may be mixing
in classical mappings into existing declarative hierarchies, an error is
now raised if multiple mapped bases are detected for a given class.

Fixes: #4321
Change-Id: I8604ecfd170d2589d9d1b1c87ba303762071fc30
Filter attributes we don't map during a load_scalar_attributes 2017-10-28T17:29:48+00:00 Mike Bayer mike_mp@zzzcomputing.com 2017-10-28T17:28:58+00:00 fd4289c5829d6498495ac59fe1dccb23b4975281 Fixed bug where a descriptor that is elsewhere a mapped column or relationship within a hierarchy based on :class:`.AbstractConcreteBase` would be referred towards during a refresh operation, causing an error as the attribute is not mapped as a mapper property. A similar issue can arise for other attributes like the "type" column added by :class:`.AbstractConcreteBase` if the class fails to include "concrete=True" in its mapper, however the check here should also prevent that scenario from causing a problem. Change-Id: I407b07a3a3e2c374da19fc86ed44b987d595dcfa Fixes: #4124 
Fixed bug where a descriptor that is elsewhere a mapped column
or relationship within a hierarchy based on :class:`.AbstractConcreteBase`
would be referred towards during a refresh operation, causing an error
as the attribute is not mapped as a mapper property.
A similar issue can arise for other attributes like the "type" column
added by :class:`.AbstractConcreteBase` if the class fails to include
"concrete=True" in its mapper, however the check here should also
prevent that scenario from causing a problem.

Change-Id: I407b07a3a3e2c374da19fc86ed44b987d595dcfa
Fixes: #4124
Make all tests to be PEP8 compliant 2017-02-07T16:21:56+00:00 Khairi Hafsham jumanjisama@gmail.com 2017-02-02T18:02:21+00:00 772374735da27df1ddb907f4a0f5085b46dbe82b tested using pycodestyle version 2.2.0 Fixes: #3885 Change-Id: I5df43adc3aefe318f9eeab72a078247a548ec566 Pull-request: https://github.com/zzzeek/sqlalchemy/pull/343 
tested using pycodestyle version 2.2.0

Fixes: #3885
Change-Id: I5df43adc3aefe318f9eeab72a078247a548ec566
Pull-request: https://github.com/zzzeek/sqlalchemy/pull/343
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