[Zope] horrible ZCatalog kludge

[Chris McDonough]

Here's an even better way, but you might need to do it in an external
method (it may be unavailable in TTW scripts):

index = catalog['Indexes'].nominator
l = map(None, index.uniqueValues())

----- Original Message -----
From: "Kyler Laird" <Kyler@Lairds.com>
To: <brinegar@purdue.edu>; <cnd@purdue.edu>; <sydelko@purdue.edu>
Cc: <zope@zope.org>
Sent: Saturday, July 13, 2002 7:28 PM
Subject: [Zope] horrible ZCatalog kludge


> O.k., so I want to know how to get a list of all objects
> in a ZCatalog for which some variable has a non-null
> value.  A star (*) by itself doesn't work, so how to do
> it?  Well, here's my kludge...
>
> catalog = container.people.catalog
>
> values = []
> for value in catalog.uniqueValuesFor('nominator'):
> if value:
> values.append(value)
> print len(catalog(nominator=values))
>
> I feel so dirty...
>
> --kyler
>
>
>
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