[Zope3-Users] test() in TALES in Zope3

[Igor Stroh]

Frank Burkhardt wrote:
> in Zope2 there's a test() method that can be used in TAL (*). Is there something
> comparable in Zope3?
> 
> I know how to write such a method but how to make it available in the
> namespace of TALES-"python:"-expressions? I would like to write expressions
> like this:
> 
> <div tal:attributes="class python: 'foo' + test(condition == True,' bar','')" />

<div tal:attributes="class python: 'foo' + (condition == True and 'bar' or '')" />

HTH,
Igor