Ingo Assenmacher wrote:
Hi Tres!
Am 10-Feb-00 schrieb Tres Seaver:
Or, as an alternative, we could extend the <dtml-in> tag to pass in a filter expression as an additional argument::
<dtml-in name=objectValues filter="self.hasMetaType( 'Document' )">
The implementation would likely need to construct a Python code object by synthesizing a function around the expression
That would be absolutely ok of course. Can I be of any help?
On further thought, this is better solved by repeating <dtml-forever> <dtml-mantra> Separate content from presentation! </dtml-mantra> </dtml-forever> More seriously, PythonMethods are the Right Thing (TM) here. For example:: PM ID: folderishOnly Parameters: self Body: ------------------------------ result = [] for obj in self.objectValues(): if obj.isPrincipiaFolderish: result.append( obj ) return result ------------------------------ Then I write in DTML: <dtml-in folderishOnly> </dtml-in> This is better, by almost any criteria, than mangling the filter expression into the <dtml-in> tag. P.S.: This would be even cooler, except PythonMethods don't have map/filter available: return _.filter( isPrincipiaFolderish, self.objectValues() ) Actually, given _.filter, one could do this in DTML: <dtml-in expr="_.filter( isPrincipiaFolderish, self.objectValues() )"> -- ========================================================= Tres Seaver tseaver@palladion.com 713-523-6582 Palladion Software http://www.palladion.com