I'm having issues trying to add an event listener to a mixin class
(which doesn't subclass Base) and wondering what kind of work-around
there might be. It's probably easier to explain with an example
( http://paste.pocoo.org/show/487334/ )
Basically if I call event.listen(), and pass as a target
The mixin by itself is not mapped so MyAddressMixin.address is just a Column
object, not the InstrumentedAttribute which accepts the set event.
So for this kind of thing you need to set up those events within an event of
their own:
from sqlalchemy.orm import mapper
@event.listens_for(mapper,
