Hi List,

I have this simple model (in declarative style):

class Item( Base ):
    __tablename__ = 'items'
    desc  = Column( 'desc', UnicodeText(), nullable=False )
    email = Column( 'email', UnicodeText(), nullable=False )

How can I trigger an event when the value of 'desc' has changed
and the instance is persisted (e.g. via 'session.save(item)')?

I would like to send out an e-mail notification when the description
of an item changes. But how do I hook it in?


regards,
-jj

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