[Zope-CMF] using the subject property

[Dieter Maurer]

Ben Riga writes:
 > >> How can I build a list of all the subjects that have been used?
 > ....
 > <dtml-in expr="portal_catalog.uniqueValuesFor( 'Subject' )" >
 >   <tr class="SubjItemRow">
 >   <td valign="top">
 >      sequence-number: <dtml-var sequence-number>
 >      sequence-key: <dtml-var sequence-key>, title: <dtml-var title><br>
"uniqueValuesFor" returns a list of strings (in your case).
"sequence-key" only makes sense for lists of pairs.

Dieter