Tim Peters wrote: > What I seem to be missing entirely here is why Zope ships Prefix instances > at the base ZEO msg level to begin with; maybe it's to call some method I > misunderstand (or haven't even bumped into yet <0.6 wink>).
When you want to undo something, Zope asks the ZEO server for a list of undoable transactions. The resulting list should include only the transactions the user is allowed to undo, so Zope passes an object that implements __cmp__ to the ZEO server. The object is used to filter transactions by the transaction's request path. ZopeUndo.Prefix is one such filter. However, to my knowledge, there are no alternative filters. :-( Shane _______________________________________________ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev
