On Oct 17, 2013, at 1:13 PM, Joseph Casale <jcas...@gmail.com> wrote:
> I have a module I import which has some table defs and global sessionmaker()
> instance.
> If the module is ran directly, it executes a create_all() to build a new db.
>
> I am trying to add a trigger DDL event listener:
>
> trg = DDL('...')
> event.listen(
> SomeName.__table__, 'after_create', trg.execute(bind=engine)
> )
>
> But it excepts as the table doesn't exist. I assume this is a commit issue
> maybe?
> What is the correct way to do something like this?
you need to pass a Python callable function (def or lambda, typically) to
event.listen, which it will call when the event occurs. right now you're just
running the execute() before the listen() is even called:
event.listen(table, "after_create", lambda *args: trg.execute(bind=engine))
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