[Zope3-dev] unique intids rationale
Jean-Marc Orliaguet
jmo at ita.chalmers.se
Tue Nov 22 08:16:48 EST 2005
Hi!
what is the rationale between the unique integer ids utility and the
usage policy?
more specifically: why are newly added objects registered in *all*
IntIds utilities? It does not make sense if the utility is registered
locally. If they are local they should not be concerned with objects
added elsewhere than outside their "scope".
can it be turned off in the application?
regards
/JM
.../Zope3/src/zope/app/intid/__init__.py
def addIntIdSubscriber(ob, event):
"""A subscriber to ObjectAddedEvent
Registers the object added in all unique id utilities and fires
an event for the catalogs.
"""
utilities = tuple(zapi.getAllUtilitiesRegisteredFor(IIntIds))
if utilities: # assert that there are any utilites
key = IKeyReference(ob, None)
# Register only objects that adapt to key reference
if key is not None:
for utility in utilities:
utility.register(key)
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