Mike Bayer b7ad656e06 Document and support nested composites ...

Composites can behave in a "nested" fashion by defining the
class in that way.   To make the constructor more convenient,
a callable can be passed to :func:`.composite` instead of the
class itself.  This works now, so add a test to ensure this
pattern remains available.

Change-Id: Ia009f274fca7269f41d6d824e0f70b6fb0ada081
(cherry picked from commit d4a130bb1b)

2018-12-12 12:56:57 -05:00

..

sqlalchemy

Document and support nested composites

2018-12-12 12:56:57 -05:00