[Zope] Re: metal:fill-slot and tal:condition

[Tonico Strasser]

Dragos Chirila schrieb:
> Hi everybody,
> 
> I am stuck with the following problem. I would appreciate it very much
> if you could help me with it.

[snip]

If I understand correctly you want to fill a slot if a condition is true 
else leave the default.

A typical "slot-modell" looks something like this:

Template I:

     <a metal:define-macro="A">
       <b metal:define-slot="B">
         default
       </b>
     </a>

Template II:

     <a metal:use-macro="here/TemplateI/macros/A">
       <b metal:fill-slot="B">
         custom
       </b>
     </a>

A different approach, a "use-macro-modell":

Template I:

     <a metal:define-macro="A"
        tal:define="macros here/getmacros">
       <b metal:use-macro="macros/B"/>
     </a>

Python Script getmacros:

     macros = {}
     # default_macros, custom_macros are page templates.
     macros.update(container.default_macros.macros)
     if blah:
         macros.update(container.custom_macros.macros)
     return macros

This is oversimplified, but I hope it helps you to find a solution.

Regards,
Tonico