hollister wrote:
>
>
> # mappers
> mapper(Keyphrase, keyphrase_table)
> mapper(Action, action_table)
>
> mapper(KeyphraseAction, keyphrase_action_table, properties={
> 'keyphrase': relation(Keyphrase,
> backref = 'keyphrase_action'),
> 'action': relation(Action),
> })
>
> # test
> for i, action in enumerate(kp.actions):
> print action.action_name
> kp.actions.remove(action) # this fails!
>
> s.commit()
you need to configure cascade so that SQLA knows to delete a
KeyphraseAction when it is deassociated from a Keyphrase. See the mapping
docs for information on "delete" cascade.
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