On 5/15/08, Yannick Gingras <[EMAIL PROTECTED]> wrote:
>
> Michael Bayer <[EMAIL PROTECTED]> writes:
>
> > easy enough to build yourself a generic MapperExtension that scans
> > incoming objects for a "_pre_commit()" method.
>
> Yeah indeed. I used this:
>
> ------------------------------
> class HookExtension(MapperExtension):
> """ Extention to add pre-commit hooks.
>
> Hooks will be called in Mapped classes if they define any of these
> methods:
> * _pre_insert()
> * _pre_delete()
> * _pre_update()
> """
> def before_insert(self, mapper, connection, instance):
> if getattr(instance, "_pre_insert", None):
> instance._pre_insert()
> return EXT_CONTINUE
[cut]
Any reason for not using hasattr ? Like...
def before_insert(self, mapper, connection, instance):
if hasattr(instance, "_pre_insert"):
instance._pre_insert()
return EXT_CONTINUE
Cheers,
Roger
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