[Zope-dev] Versions: should they die?

[sean.upton@uniontrib.com]

If I remember correctly, though, there was still a lot in question about
legitimate use cases.  The web-services cluster-safety use-case I sketched
out here (http://mail.zope.org/pipermail/zope3-dev/2002-October/003112.html)
is still (perhaps) a valid case, but ONLY in a very-carefully constructed
application (and even that case leaves me wanting a better app-level way to
do it).

I think I agree with the feeling that versions should stay in ZODB, but be
depreciated/marked as "official evil" in ZMI.

Sean

> -----Original Message-----
> From: Guido van Rossum [mailto:guido@python.org]
> Sent: Tuesday, June 03, 2003 5:08 PM
> To: Paul Winkler
> Cc: zope-dev@zope.org
> Subject: Re: [Zope-dev] Versions: should they die?
> 
> 
> > To anyone not following the "Problem committing  zope 
> 'version' objects"
> > thread on zope@zope.org:  It's been proposed that Versions should be
> > at least stamped in the ZMI with big warnings, or possibly disabled
> > altogether.  Numerous users have been bit by the fact that versions
> > basically do not work as advertised, leading in various 
> cases to zodb 
> > corruption or work that can't be saved.  There are other 
> security issues
> > that Oliver Bleutgen raised privately which I won't state here.
> > 
> > Comments?  Could we get at least some warnings in the ZMI before
> > 2.6.2 final?
> 
> IMO versions do nothing except complexify the code.  I believe it's an
> official Zope Corp position to discourage them for new projects.  Yet
> Jeremy Hylton seems to think that they are somehow useful and has
> carefully preserved them in ZODB 4 (== Zope 3).  If it were up to me,
> they would have been gone, with a big helping of YAGNI!
> 
> --Guido van Rossum (home page: http://www.python.org/~guido/)
> 
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