[Zope] is <dtml-unless someIndirectVariable> possible ?

[R. David Murray]

On Sun, 27 Aug 2000, Bill Welch wrote:
> <dtml-unless "_['myPropName']">

Hmm.  Don't you mean _[myPropName]?  I think that will throw a key
error if the value of myPropName is a key in the namespace, though,
which I don't think is what he wants.

If the question is specifically whether or not the property is in
request, then

<dtml-unless "REQUEST.has_key(myPropName)">

would probably be the best approach.

--RDM