[Zope-CMF] Sorting Search Results by Path...

[Jeff Ross]

I'm creating a "My Documents" page in my portal in which each user can see
the documents they created. I'm basing my page on search.pt. It was easy
enough to search by the Creator field, but I can't figure out how to sort
the results by path. I've tried adding "sort_on=path" to the query string,
but this just gives me:

Error Value: Products.ZCatalog.Catalog.CatalogError on The index chosen for
sort_on is not capable of being used as a sort index. in '', at line 10,
column 1

Any ideas?

Jeff