[Framework-Team] today's meeting

David Glick davidglick at onenw.org
Wed Jul 29 16:26:55 UTC 2009


A couple things I'd like to talk about:

* Upgrade policy.  Currently Plone 3 supports migrations from Plone <=  
2.0.5.  I was hoping to be able to do that for Plone 4 as well, but  
there is a tradeoff.  Plone 4 no longer has any runtime dependency on  
GroupUserFolder, so I was hoping we wouldn't need to depend on it any  
longer.  However, it is still needed in order to migrate Plone sites  
from before we used PAS (e.g., Plone < 2.5).  I think we have 2 options:

   1. Get rid of the GroupUserFolder dependency from PlonePAS, but  
require it for the new plone.app.upgrade package.  That way it's at  
least possible to avoid loading the extra code when running normally,  
but it can still be added for upgrading (and would be included by  
default with the installers, presumably).  The downside is that we  
would still depend on GroupUserFolder from the migration, so would  
still need to maintain it at least nominally to make sure that it runs  
well enough in Zope 2.12 to extract data from it.

   2. Declare that upgrades to Plone 4 are only supported from Plone 3  
or greater.  So if you have a Plone 2.0.5 site, say, you would first  
install and upgrade to Plone 3 (which would take care of migrating the  
user folder), then install and upgrade to Plone 4 (which would no  
longer require any GRUF dependency).

Thoughts on which is preferable?

* wicked / AdvancedQuery.  See https://dev.plone.org/plone/ticket/ 
9398 ...Does removing this dependency make sense?  Is someone willing  
to volunteer to make the needed change in wicked?

* PLIP handoffs.  What sort of info do we expect from PLIP authors  
when they submit their PLIPs?  For my 3.3 PLIPs I did a writeup like http://svn.plone.org/svn/plone/review/plip240-locking-improvements/PLIP_240_README.txt 
  ...now that I'm in the reviewer's chair I'd certainly find it  
helpful to have this sort of information from others.


David Glick
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ONE/Northwest

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