When I first read the SA documentation I got the impression I could
do this:
class Entity(object):
def _get_attr(self):
# get logic
def _set_attr(self):
# set logic
attr = property(_get_attr, _set_attr)
entities = Table("entities",
Column("id", ...),
Column("attr", ...)
)
m = Mapper(Entity, entities)
I got the impression that SQLAlchemy would transparently wrap access
to Entity.attr to track history, etc. However, I was rudely awakened
when I realized that such code was not working...my "Entity.attr"
property is simply overwritten by AttributeManager.register_attribute
(...), which puts a SmartProperty there instead.
Am I overlooking something? Is there a way to do this? Could
AttributManager and/or SmartProperty be improved to support
properties as well as normal attributes?
~ Daniel
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