What I am trying to do is get the events for when an attribute was modified.
This code was used to register that I wanted ReceiveEvents to get called when attributes where modified. Has this been removed between 0.5.beta4 and 0.5.2. The example program in examples/custom_attributes/custom_attributes.py show the way of getting event/notify when an attribute is changed. Michael Bayer wrote: > > attribute extensions can be passed to any column_property() or relation() > now. There's no hook at the moment in the "attribute extension" API > which fires at the point at which the "AttributeImpl" is assembled. > > > Mike Bernson wrote: >> I am trying to move from 0.5beta4 to 0.5.2 >> >> The attribute events are giving me a problem >> >> The code worked in 0.5beta4 and now is broken. >> >> >> class base(object): >> __sa_instrumentation_manager__ = SetListener >> >> >> >> listener = ReceiveEvents() >> >> class SetListener(InstrumentationManager): >> def instrument_attribute(self, class_, key, inst): >> inst.impl.extensions.append(listener) >> >> when instrument_attribute is called inst.impl is None. >> >> I then look at the examples and try the examples/custom_attributes.py >> which had the same problem. >> >> Any Ideas on how to make the this work again ? >> >> > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
