A tool that enables rolling back (undoing) changes to a Zope Application database based on date and time.
What is Undoer?
Undoer is a product/patch that enables transactions to be undone based on a date. Useful if you or someone else has managed to make a lot of separate changes that would be cumbersome to undo the usual Zope way and no recent (enough) backups are available. See the Undo tab in the Zope Management Interface for instructions on how to use it.
The original script was developed by Nidelven IT for Huridocs (who paid for it) and later re-written by Nidelven IT for use by the Zope community.
It is available from
and any questions/comments can be sent to email@example.com
Added support for ZODB >= 3.10 (which has one method to undo multiple transactions, thx Hanno).
Added info about undo bug on recent versions of Zope.
Packaged up as egg.
Added compatability with InitializeCass.
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