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path: root/lib/sqlalchemy/event/registry.py
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* update for 2017 copyrightMike Bayer2017-01-041-1/+1
| | | | Change-Id: I4e8c2aa8fe817bb2af8707410fa0201f938781de
* - happy new yearMike Bayer2016-01-291-1/+1
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* - copyright 2015Mike Bayer2015-03-101-1/+1
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* - wip - start factoring events so that we aren't using descriptors for dispatch,Mike Bayer2015-01-041-6/+6
| | | | allowing us to move to __slots__
* - start trying to move things into __slots__. This seems to reduce theslotsMike Bayer2015-01-041-0/+4
| | | | | size of the many per-column objects we're hitting, but somehow the overall memory is hardly being reduced at all in initial testing
* - Fixed bug that affected generally the same classes of eventMike Bayer2014-09-181-3/+11
| | | | | | | | | | as that of :ticket:`3199`, when the ``named=True`` parameter would be used. Some events would fail to register, and others would not invoke the event arguments correctly, generally in the case of when an event was "wrapped" for adaption in some other way. The "named" mechanics have been rearranged to not interfere with the argument signature expected by internal wrapper functions. fixes #3197
* - Fixed bug that affected many classes of event, particularlyMike Bayer2014-09-181-11/+15
| | | | | | | | | | | ORM events but also engine events, where the usual logic of "de duplicating" a redundant call to :func:`.event.listen` with the same arguments would fail, for those events where the listener function is wrapped. An assertion would be hit within registry.py. This assertion has now been integrated into the deduplication check, with the added bonus of a simpler means of checking deduplication across the board. fixes #3199
* - Removing (or adding) an event listener at the same time that the eventMike Bayer2014-08-141-1/+1
| | | | | | | | | is being run itself, either from inside the listener or from a concurrent thread, now raises a RuntimeError, as the collection used is now an instance of ``colletions.deque()`` and does not support changes while being iterated. Previously, a plain Python list was used where removal from inside the event itself would produce silent failures. fixes #3163
* - apply pep8 formatting to sqlalchemy/sql, sqlalchemy/util, sqlalchemy/dialects,Brian Jarrett2014-07-201-13/+17
| | | | sqlalchemy/orm, sqlalchemy/event, sqlalchemy/testing
* - break up the <authors> copyright comment as part of a passMike Bayer2014-07-091-1/+2
| | | | to get all flake8 passing
* - Added a new keyword argument ``once=True`` to :func:`.event.listen`Mike Bayer2014-03-111-2/+7
| | | | | and :func:`.event.listens_for`. This is a convenience feature which will wrap the given listener such that it is only invoked once.
* - happy new yearMike Bayer2014-01-051-1/+1
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* - add copyright to source files missing itMike Bayer2013-10-261-0/+6
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* - add support for removal of instance methods as event listeners, takingMike Bayer2013-10-011-2/+6
| | | | into account the id() of the function itself and self, [ticket:2832]
* - this collection can be None on cleanup, so check for thatMike Bayer2013-07-271-1/+1
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* - add event.contains() function to the event package, returns TrueMike Bayer2013-07-261-0/+4
| | | | | if the given target/event/fn is set up to listen. - repair mutable package which is doing some conditional event listening
* - Removal of event listeners is now implemented. The feature isMike Bayer2013-07-261-0/+222
provided via the :func:`.event.remove` function. [ticket:2268] - reorganization of event.py module into a package; with the addition of the docstring work as well as the new registry for removal, there's a lot more code now. the package separates concerns and provides a top-level doc for each subsection of functionality - the remove feature works by providing the EventKey object which associates the user-provided arguments to listen() with a global, weak-referencing registry. This registry stores a collection of _ListenerCollection and _DispatchDescriptor objects associated with each set of arguments, as well as the wrapped function which was applied to that collection. The EventKey can then be recreated for a removal, all the _ListenerCollection and _DispatchDescriptor objects are located, and the correct wrapped function is removed from each one.
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