[Zope-CMF] Re: GenericSetup: How to use upgradeStep?
Maurits van Rees
m.van.rees at zestsoftware.nl
Sat Sep 1 18:18:37 EDT 2007
I sent this message earlier this week via gmane but it seemed to have
problems at the time and I did not see the message show up. So I try
again. If anyone wants to react you can take your time as I will be
on vacation the next two weeks. :)
Maurits van Rees, on 2007-08-21:
> I am having problems understanding how the new upgradeStep
> functionality of GenericSetup works. Maybe the most important
> question: is there a product that already uses this, so I can look at
> its code as an example?
I did not get any responses yet about this. I went ahead and added an
upgradeStep to eXtremeManagement, a project management Product for
Plone. The trunk there is meant for Plone 2.5 and 3.0 but some tabs
are duplicated in 3.0 so I wanted to fix that. The upgrade step does
this. The changeset is here:
The central piece of code there is the handler that simply runs all
steps from an extension profile that I added for this upgrade step:
# Right, context == portal_setup here.
Does this way of using upgrade steps look sane?
Like I said in my previous post, there are two things that I do not
quite like about this or that I at least did not expect:
- I need to specify a handler even though I only want to run the
import steps of a profile, which I now have to do by hand in that
- I need to register an upgrade step *and* an extension profile, which
feels double to me and which adds another profile to the list of
extension profiles, which gets longer and longer.
I hope I do not sound too much as only complaining. These upgrade
steps form a good foundation. I just feel some parts are missing or
have room for improvement. If other people feel the same way I do not
mind putting some code where my mouth is. :)
Or if I misunderstood how best to use upgrade steps, feel free to
Maurits van Rees | http://maurits.vanrees.org/ [NL]
Work | http://zestsoftware.nl/
"Do not worry about your difficulties in computers,
I can assure you mine are still greater."
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