[Zope-CMF] Re: GenericSetup: How to use upgradeStep?

Wichert Akkerman wichert at wiggy.net
Wed Sep 26 03:53:25 EDT 2007

Previously Lennart Regebro wrote:
> On 9/25/07, Maurits van Rees <m.van.rees at zestsoftware.nl> wrote:
> > When you want to remove an index or column you can do that by editing
> > the profile and adding remove="True" to that index or column.  So this
> > upgrade can be represented as a profile edit.  But applying the
> > profile will empty the remaining indexes that are mentioned in that
> > profile.  So ideally I would want to apply the profile only once when
> > installing and rely on upgrade steps to handle any further changes
> > without applying that complete profile again.
> >
> > It seems the new upgrade steps do not really solve this particular use
> > case then.  (It can sure be handy for other things, no doubt about
> > that.)  But I had hopes to use them to work around this issue with
> > catalog.xml.  Apparently a workaround is no substitute for really
> > solving the problem. ;-)
> >
> > Is anyone going to the sprints after the Plone conference who wants to
> > take a shot at this with me?  Preferably someone with commit rights. :-)
> Well, I made a monkey-patch that I haven't merged yet that only did
> that if the index definition had actually changed, and that was quite
> trivial. I would appreciate more people looking at this, since this
> was so easy I get suspiscious. :-) So at the Plone conf seems a good
> time.

I would like to see that. As far as I could see there is no way to do
this reliably, but I would love to be proven wrong.


Wichert Akkerman <wichert at wiggy.net>    It is simple to make things.
http://www.wiggy.net/                   It is hard to make things simple.

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