.. changelog::
:version: 1.2.3
- :include_notes_from: unreleased_12
+ :released: February 16, 2018
+
+ .. change::
+ :tags: bug, oracle
+ :tickets: 4182
+
+ Fixed bug in cx_Oracle disconnect detection, used by pre_ping and other
+ features, where an error could be raised as DatabaseError which includes a
+ numeric error code; previously we weren't checking in this case for a
+ disconnect code.
+
+ .. change::
+ :tags: bug, sqlite
+
+ Fixed the import error raised when a platform
+ has neither pysqlite2 nor sqlite3 installed, such
+ that the sqlite3-related import error is raised,
+ not the pysqlite2 one which is not the actual
+ failure mode. Pull request courtesy Robin.
+
+ .. change::
+ :tags: bug, orm
+ :tickets: 4175
+
+ Fixed bug where the :class:`.Bundle` object did not
+ correctly report upon the primary :class:`.Mapper` object
+ represened by the bundle, if any. An immediate
+ side effect of this issue was that the new selectinload
+ loader strategy wouldn't work with the horizontal sharding
+ extension.
+
+ .. change::
+ :tags: bug, sql
+ :tickets: 4180
+
+ Fixed bug where the :class:`.Enum` type wouldn't handle
+ enum "aliases" correctly, when more than one key refers to the
+ same value. Pull request courtesy Daniel Knell.
+
+
+ .. change::
+ :tags: bug, engine
+ :tickets: 4181
+
+ Fixed bug where events associated with an :class:`Engine`
+ at the class level would be doubled when the
+ :meth:`.Engine.execution_options` method were used. To
+ achieve this, the semi-private class :class:`.OptionEngine`
+ no longer accepts events directly at the class level
+ and will raise an error; the class only propagates class-level
+ events from its parent :class:`.Engine`. Instance-level
+ events continue to work as before.
+
+ .. change::
+ :tags: bug, tests
+ :tickets: 3265
+
+ A test added in 1.2 thought to confirm a Python 2.7 behavior turns out to
+ be confirming the behavior only as of Python 2.7.8. Python bug #8743 still
+ impacts set comparison in Python 2.7.7 and earlier, so the test in question
+ involving AssociationSet no longer runs for these older Python 2.7
+ versions.
+
+ .. change::
+ :tags: feature, oracle
+
+ The ON DELETE options for foreign keys are now part of
+ Oracle reflection. Oracle does not support ON UPDATE
+ cascades. Pull request courtesy Miroslav Shubernetskiy.
+
+
+
+ .. change::
+ :tags: bug, orm
+ :tickets: 4188
+
+ Fixed bug in concrete inheritance mapping where user-defined
+ attributes such as hybrid properties that mirror the names
+ of mapped attributes from sibling classes would be overwritten by
+ the mapper as non-accessible at the instance level. Additionally
+ ensured that user-bound descriptors are not implicitly invoked at the class
+ level during the mapper configuration stage.
+
+ .. change::
+ :tags: bug, orm
+ :tickets: 4178
+
+ Fixed bug where the :func:`.orm.reconstructor` event
+ helper would not be recognized if it were applied to the
+ ``__init__()`` method of the mapped class.
+
+ .. change::
+ :tags: bug, engine
+ :tickets: 4170
+
+ The :class:`.URL` object now allows query keys to be specified multiple
+ times where their values will be joined into a list. This is to support
+ the plugins feature documented at :class:`.CreateEnginePlugin` which
+ documents that "plugin" can be passed multiple times. Additionally, the
+ plugin names can be passed to :func:`.create_engine` outside of the URL
+ using the new :paramref:`.create_engine.plugins` parameter.
+
+ .. change::
+ :tags: feature, sql
+ :tickets: 3906
+
+ Added support for :class:`.Enum` to persist the values of the enumeration,
+ rather than the keys, when using a Python pep-435 style enumerated object.
+ The user supplies a callable function that will return the string values to
+ be persisted. This allows enumerations against non-string values to be
+ value-persistable as well. Pull request courtesy Jon Snyder.
+
+ .. change::
+ :tags: feature, orm
+
+ Added new argument :paramref:`.attributes.set_attribute.inititator`
+ to the :func:`.attributes.set_attribute` function, allowing an
+ event token received from a listener function to be propagated
+ to subsequent set events.
.. changelog::
:version: 1.2.2
projects / thirdparty / sqlalchemy / sqlalchemy.git / commitdiff
