--On Dienstag, 13. Mai 2003 8:23 Uhr -0400 Mark Nenadov <mark@freelance-developer.com> wrote:

Hello all,

I have a simple ZCatalog query with a sort_on and sort_order being passed to it.

Is there any way I can do the sort on multiple columns? This seems like an important feature. I've heard that is not possible, but I'm wondering if I am just missing something/getting wrong info.

I'm already looking into the Generic Sort External Method, but I'm wondering if there is some other way to do this?

you can use sequence.sort() to perform multi-column sorting on the resultset. -aj

Here is recipe for a python script that may help. def multiSort(objects=None): """ Sort a list of objects by one or more attributes """ if objects is None: objects = [] return objects results = [] sort_field = ['field1', 'field2', 'field3'] for object in objects: row = [getattr(object, attr) for attr in sort_field] row.append(object) results.append(tuple(row)) results.sort() return [row[-1] for row in results] On Tue, 2003-05-13 at 08:23, Mark Nenadov wrote:

Hello all,

I have a simple ZCatalog query with a sort_on and sort_order being passed to it.

Is there any way I can do the sort on multiple columns? This seems like an important feature. I've heard that is not possible, but I'm wondering if I am just missing something/getting wrong info.

I'm already looking into the Generic Sort External Method, but I'm wondering if there is some other way to do this?

Thanks, ~Mark

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