This has been a problem for me for years.
class DeliveryAddress(Base, Address):
...
delivery_method = Column(String)
...
@event.listens_for(DeliveryAddress, 'before_insert')
def before_insert_deliveryaddress(mapper, connection, target):
settings = object_session(target).query(Settings).one()
target.delivery_method = settings.default_delivery_method
Is there absolutely no way to encapsulate this logic cleanly in the actual
class?
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