[Zope] Building a site tree with the ZCatalog

Andreas Jung lists at zopyx.com
Tue Oct 21 12:55:22 EDT 2008


On 21.10.2008 18:25 Uhr, Martijn Pieters wrote:
> On Tue, Oct 21, 2008 at 18:10, Andreas Jung<lists at zopyx.com>  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
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