[ZODB-Dev] Undo in run-time

[Magnus Lycka]

We're planning to add an undo feature to our ZODB GUI
app. It's going to be based on the ZODB versioning
mechanism.

Of course, shutting down the program, backing ZODB
and starting up the program again would be no problem
from a consistency point of view, but that's hardly
how people expect Ctrl-Z to work...

But what happens with persistent objects that are
referenced by our program if they have changed or
even become non-existent due to the rewinding of the
database?


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Magnus Lyck=E5, Thinkware AB
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