a column setup on the ABC base which had a different attribute name vs. column name would not be correctly mapped on the final base class. The failure on 0.9 would be silent whereas on 1.0 it raised an ArgumentError, so may not have been noticed prior to 1.0. fixes #3480
objects that made use of the ``__clause_element__()`` method and returned an object that was an ORM-mapped :class:`.InstrumentedAttribute` and not explicitly a :class:`.ColumnElement` would fail to be correctly handled when passed as an expression to :meth:`.Session.query`. The logic in 0.9 happened to succeed on this, so this use case is now supported. fixes #3448
as test_customfinder_pass at least does not provide the alternate ext manager and in all cases it's the global function that counts
- alter the approach so that the initial callable is working just like add_criteria/with_criteria
as a result of the bugfix for :ticket:`3167`, where attribute and validation events are no longer called within the flush process. The mutable extension was relying upon this behavior in the case where a column level Python-side default were responsible for generating the new value on INSERT or UPDATE, or when a value were fetched from the RETURNING clause for "eager defaults" mode. The new value would not be subject to any event when populated and the mutable extension could not establish proper coercion or history listening. A new event :meth:`.InstanceEvents.refresh_flush` is added which the mutable extension now makes use of for this use case. fixes #3427 - Added new event :meth:`.InstanceEvents.refresh_flush`, invoked when an INSERT or UPDATE level default value fetched via RETURNING or Python-side default is invoked within the flush process. This is to provide a hook that is no longer present as a result of :ticket:`3167`, where attribute and validation events are no longer called within the flush process. - Added a new semi-public method to :class:`.MutableBase` :meth:`.MutableBase._get_listen_keys`. Overriding this method is needed in the case where a :class:`.MutableBase` subclass needs events to propagate for attribute keys other than the key to which the mutable type is associated with, when intercepting the :meth:`.InstanceEvents.refresh` or :meth:`.InstanceEvents.refresh_flush` events. The current example of this is composites using :class:`.MutableComposite`.
off again so that test fixtures setup/teardown instrumentation as expected - clean up test_extendedattr.py and fix it to no longer leak itself outside by ensuring _reinstall_default_lookups is always called, part of #3408 - Fixed bug where when using extended attribute instrumentation system, the correct exception would not be raised when :func:`.class_mapper` were called with an invalid input that also happened to not be weak referencable, such as an integer. fixes #3408
to clean up automatically. references #3407
on an relationship->scalar non-object attribute comparison would fail, e.g. ``filter(Parent.some_collection_to_attribute.any(Child.attr == 'foo'))`` fixes #3397
event where its invocation was moved to be after the class manager's instrumentation of the class, which is the opposite of what the documentation for the event explicitly states. The rationale for the switch was due to Declarative taking the step of setting up the full "instrumentation manager" for a class before it was mapped for the purpose of the new ``@declared_attr`` features described in :ref:`feature_3150`, but the change was also made against the classical use of :func:`.mapper` for consistency. However, SQLSoup relies upon the instrumentation event happening before any instrumentation under classical mapping. The behavior is reverted in the case of classical and declarative mapping, the latter implemented by using a simple memoization without using class manager. fixes #3388