[Zope-Annce] [Ann] DMHistorical -- access historical state in a ZODB

Dieter Maurer dieter at handshake.de
Thu Jun 7 06:25:23 EDT 2007

"DMHistorical" is a set of tools to access the historical state of a ZODB.

Such tools may be helpful to analyse why unwanted or unexpected
changes happened and/or to selectively go back to a previous state.

This implementation resolves not only the main object but also all
(direct or indirect) persistent references from this object at the
given time. Zope's 'History' facility on the other hand can show the
state of an object at a given time but would resolve persistent
references with respect to the current time.

This implementation will not work for ZODB 3.2 or earlier. It has been
tested with ZODB 3.4. It may (or may not) work for ZODB 3.6 or above.

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