[Zope] Combining hits from searching 2 ZCatalogs at once

[Chris Withers]

Hi Casey,

Casey Duncan wrote:
> 
> Here is a simple example (external method):
> 
> from Products.ZCatalog.Catalog import mergeResults
> 
> def queryMultipleCatalogs(request, *zcatalogs):
>     results = []
>     for zcat in zcatalogs:
>         results.append(zcat1._catalog.searchResults(request, _merge=0))
>     sorted = request.has_key('sort-on') or request.has_key('sort_on')
>     reverse = ((request.get('sort-order','') or 
>                request.get('sort_order','')).lower() 
>                in ('reverse','descending'))
>     return mergeResults(results, sorted, reverse)

Could something similar be used to solve this problem?

http://mail.zope.org/pipermail/zope-dev/2003-April/019456.html
http://mail.zope.org/pipermail/zope-dev/2003-May/019485.html

cheers,

Chris