In a context where you need to obtain the whole list the Martijn solutions sounds better in my ears because the Andreas one do more times the bottleneck
In a context where you will complete the list as soon as you need (as Zope Smart Manager) the Andreas one sounds better Only my point of view ;) 2008/10/21 Andreas Jung <[EMAIL PROTECTED]> > On 21.10.2008 18:25 Uhr, Martijn Pieters wrote: > >> On Tue, Oct 21, 2008 at 18:10, Andreas Jung<[EMAIL PROTECTED]> wrote: >> >>> You have to split the complete processing over several EPI queries where >>> a >>> single query returns all elements with level=1 for a particular >>> subfolder. >>> You can sort_on='position' within each query. And paste the results in >>> some >>> way together. Nobody said that EPI would solve the problem out-of-the-box >>> :-) >>> >> >> Right, so with sufficient levels you end up with a *lot* of queries. >> >> Why not just query for the whole lot and use one method that returns a >> (path, position) tuple for a given item, and pass that to the sort >> function as the key keyword? Should be a lot better performing. >> > > > If this would be a programming contest then you would cache the results and > don't care about the performance for the initial calculation. > > Andreas > > _______________________________________________ > Zope maillist - Zope@zope.org > http://mail.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://mail.zope.org/mailman/listinfo/zope-announce > http://mail.zope.org/mailman/listinfo/zope-dev ) > > -- Mis Cosas http://blogs.sistes.net/Garito Zope Smart Manager http://blogs.sistes.net/Garito/670
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