d1110c410e
git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@3685 fd906abe-77d9-0310-91a1-e0d9ade77398
31 lines
910 B
Python
31 lines
910 B
Python
# Sometimes persistent classes are never meant to be persisted. The most
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# common example are CMFCore directory views and filesystem objects.
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# Register specific handlers that are no-ops to circumvent
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from zope.interface import implements
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from zope.app.keyreference.interfaces import IKeyReference, NotYet
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def addIntIdSubscriber(ob, event):
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return
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def removeIntIdSubscriber(ob, event):
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return
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def moveIntIdSubscriber(ob, event):
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return
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class KeyReferenceNever(object):
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"""A keyreference that is never ready"""
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implements(IKeyReference)
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key_type_id = 'five.intid.cmfexceptions.keyreference'
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def __init__(self, obj):
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raise NotYet()
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def __call__(self):
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return None
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def __cmp__(self, other):
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if self.key_type_id == other.key_type_id:
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return cmp(self, other)
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return cmp(self.key_type_id, other.key_type_id)
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