Hi Maurits, sorry for not replying sooner, I just came home from a vacation...
I wrote the p.a.collection 2.x code for a client and I'm also responsible for the nested collection branch.
My plan was to refactor the collection functionality into a behavior, to make it easy for integrators to write their own folderish/nested collections. This way there would be no need for a nested collection branch any longer.
There was a discussion (I think on the UI list) about nested collections in the core and we decided against it (just because of the UI problems if I recall correctly).
I stopped working for that particular client a couple of months ago before I could finish the collection behavior refactoring. I'm not sure if they still plan to implement it (because they are currently using the nested collection branch).
I would be happy to assist anybody who wants to work on that, but I don't have the time to do it myself right now.
Cheers, Timo Am 01.11.2012 18:29, schrieb Maurits van Rees:
Hi, A few quick questions about the new style collections in Plone 4.2, to check that I understand them correctly. Unless I have missed something, old style collections are not migrated to new style when migrating to Plone 4.2. Does someone have code that would do that? Perhaps an add-on that I missed? If not, then I might want to create a package for that. Sub collections are not possible in the new style. I guess this is because the UI and the logic can quickly get confusing and you do not win much over creating a second, separate collection. I am guessing that creating a folderish version of the new style collections should work though, allowing you to nest them. Some logic would be needed that looks for a parent collection and combine the two queries. That may not be good for Plone core, but are there technical reasons why this would not be possible? Thanks,
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