delta/python-packages/sqlalchemy.git/lib/sqlalchemy/events.py, branch fix_mariadb102_default

Accept FetchedValue, text() for column "default" value

2017-02-01T22:00:42+00:00

Fixed bug whereby the :meth:`.DDLEvents.column_reflect` event would not
allow a non-textual expression to be passed as the value of the
"default" for the new column, such as a :class:`.FetchedValue`
object to indicate a generic triggered default or a
:func:`.sql.expression.text` construct.  Clarified the documentation
in this regard as well.

Fixes: #3905

Change-Id: I829796c3e9f87f375149bebee7eef133a6876d4d

Support python3.6

2017-01-13T15:57:41+00:00

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

Change-Id: I4e8c2aa8fe817bb2af8707410fa0201f938781de

Handle BaseException in all _handle_dbapi_error

2016-09-21T22:39:31+00:00

Tests illustrate that exceptions like GreenletExit and
even KeyboardInterrupt can corrupt the state of a DBAPI
connection like that of pymysql and mysqlclient.   Intercept
BaseException errors within the handle_error scheme and
invalidate just the connection alone in this case, but not
the whole pool.

The change is backwards-incompatible with a program that
currently intercepts ctrl-C within a database transaction
and wants to continue working on that transaction.  Ensure
the event hook can be used to reverse this behavior.

Change-Id: Ifaa013c13826d123eef34e32b7e79fff74f1b21b
Fixes: #3803

Let logging format messages on demand, use warning instead of deprecated warn

2016-05-03T15:29:41+00:00

- Added connection pool events :meth:`ConnectionEvents.close`,

2016-03-25T22:31:17+00:00

:meth:`.ConnectionEvents.detach`,
:meth:`.ConnectionEvents.close_detached`.

- happy new year

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

- update the pool pessimistic invalidation recipe to refer to the

2015-10-22T15:58:25+00:00

engine_connect event, allowing easy detection of disconnects
and full invalidation of the pool

- Added new engine event :meth:`.ConnectionEvents.engine_disposed`.

2015-06-06T21:50:32+00:00

Called after the :meth:`.Engine.dispose` method is called.

- New features added to support engine/pool plugins with advanced

2015-04-30T21:51:14+00:00

functionality.   Added a new "soft invalidate" feature to the
connection pool at the level of the checked out connection wrapper
as well as the :class:`._ConnectionRecord`.  This works similarly
to a modern pool invalidation in that connections aren't actively
closed, but are recycled only on next checkout; this is essentially
a per-connection version of that feature.  A new event
:class:`.PoolEvents.soft_invalidate` is added to complement it.
fixes #3379

- Added new flag
:attr:`.ExceptionContext.invalidate_pool_on_disconnect`.
Allows an error handler within :meth:`.ConnectionEvents.handle_error`
to maintain a "disconnect" condition, but to handle calling invalidate
on individual connections in a specific manner within the event.

- Added new event :class:`.DialectEvents.do_connect`, which allows
interception / replacement of when the :meth:`.Dialect.connect`
hook is called to create a DBAPI connection.  Also added
dialect plugin hooks :meth:`.Dialect.get_dialect_cls` and
:meth:`.Dialect.engine_created` which allow external plugins to
add events to existing dialects using entry points.
fixes #3355