delta/python-packages/sqlalchemy.git/lib/sqlalchemy/orm, branch workflow_test_foo

Build out new declarative systems; deprecate mapper()

2020-09-10T21:53:53+00:00

The ORM Declarative system is now unified into the ORM itself, with new
import spaces under ``sqlalchemy.orm`` and new kinds of mappings.  Support
for decorator-based mappings without using a base class, support for
classical style-mapper() calls that have access to the declarative class
registry for relationships, and full integration of Declarative with 3rd
party class attribute systems like ``dataclasses`` and ``attrs`` is now
supported.

Fixes: #5508
Change-Id: I130b2b6edff6450bfe8a3e6baa099ff04b5471ff

Add more docs for populate_existing(); link with_for_update

2020-09-10T16:15:16+00:00

The populate_existing() method is actually changing
to be an execution option, however it has almost no
mention in the narrative docs so add docs in terms of the
1.x version first, including that we mention you almost
definitely want to use this method if you are also using
with_for_update().

Fixes: #5572
Fixes: #4774
Change-Id: Ieca916400622c1ffc1ae81204132a02a0983594c

Update select usage to use the new 1.4 format

2020-09-08T21:13:48+00:00

This change includes mainly that the bracketed use within
select() is moved to positional, and keyword arguments are
removed from calls to the select() function.  it does not
yet fully address other issues such as keyword arguments passed
to the table.select().

Additionally, allows False / None to both be considered
as "disable" for all of select.correlate(), select.correlate_except(),
query.correlate(), which establishes consistency with
passing of ``False`` for the legact select(correlate=False)
argument.

Change-Id: Ie6c6e6abfbd3d75d4c8de504c0cf0159e6999108

Add caveat re: with_expression and already-loaded object

2020-09-02T18:56:49+00:00

Adds a test for the populate_existing() behavior as well.

Fixes: #5553
Change-Id: Ib0db6227c3fec7d0065f2a7caa36b3fd94ef14fd

Merge "Add support for classical mapping of dataclasses"

2020-09-01T17:10:53+00:00

Add support for classical mapping of dataclasses

2020-09-01T14:59:07+00:00

Added support for direct mapping of Python classes that are defined using
the Python ``dataclasses`` decorator.    See the section
:ref:`mapping_dataclasses` for background.  Pull request courtesy Václav
Klusák.

Fixes: #5027
Closes: #5516
Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/5516
Pull-request-sha: bb48c63d1561ca48c954ad9f84a3eb2646571115

Change-Id: Ie33db2aae4adeeb5d99633fe926b9c30bab0b885

Merge "Provide a more detailed error message for Query.join()"

2020-09-01T13:50:29+00:00

Provide a more detailed error message for Query.join()

2020-08-31T23:01:15+00:00

An :class:`.ArgumentError` with more detail is now raised if the target
parameter for :meth:`_query.Query.join` is set to an unmapped object.
Prior to this change a less detailed ``AttributeError`` was raised.
Pull request courtesy Ramon Williams.

Fixes: #4428
Closes: #5452
Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/5452
Pull-request-sha: b148df547037e9a254fe331eff8e922c78426261

Change-Id: I873453d1fdb651178216aac698baac63ae5a94e8

Support extra / single inh criteria with ORM update/delete

2020-08-30T23:45:04+00:00

The ORM bulk update and delete operations, historically available via the
:meth:`_orm.Query.update` and :meth:`_orm.Query.delete` methods as well as
via the :class:`_dml.Update` and :class:`_dml.Delete` constructs for
:term:`2.0 style` execution, will now automatically accommodate for the
additional WHERE criteria needed for a single-table inheritance
discrminiator.   Joined-table inheritance is still not directly
supported. The new :func:`_orm.with_loader_criteria` construct is also
supported for all mappings with bulk update/delete.

Fixes: #5018
Fixes: #3903
Change-Id: Id90827cc7e2bc713d1255127f908c8e133de9295

Update connection docs for migrating off of nesting

2020-08-29T22:55:02+00:00

Change-Id: I3a81140f00a4a9945121bfb8ec4c0e3953b4085f