Hello,
I have a problem with the MapperExtension. In the method
"before_update" i want to create a new object, add it to the session
and attach it to the object i'm updating, but it doesn't work. In the
documentation i've read that we can't modify the session plan in the
mapperExtension, so how could i do that ?
Example :
class CityExtension(MapperExtension):
def before_update(self,mapper, connection, instance):
....
instance.location.address = 'XXXX' => this is not committed
Class City:
__mapper_args__ = {'extension': CityExtension()}
location = orm.relation(Location,...)
...
Class Location:
name
address
...
Please help, how can i succeed ?
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