[Zope] Can one nest macros with slots?

[Doyon, Jean-Francois]

The situation:

I have a "main_template" that does the looks of the site, with a "main" slot
where the content goes, much like the standard templates give you.

Now I have objects that behave similarly and share some interface
components, so I figured I could try to create another macro, with another
slot to fit inside that "main" slot, that all of the objects/content types
could re-use.

So I end up doing what I said below ... But that doesn't work :(

I've come up with an alternative for now, though it's not as elegant as this
I think ... But it'll have to do.

If you care to keep reading, the details:

main_template:

<define-macro="master">
  <... some html ...>
  <define-slot="main" />
  <... some html ...>
</define-macro>

shared template:

<use-macro="main_template/master">
  <fill-slot="main">
    <define-macro="shared">
      <... some html ...>
      <define-slot="sharedslot" />
      <... some html ...>
    </define-macro>
  </fill-slot>
</use-macro>

Object specific template:

<use-macro="shared">
  <fill-slot="sharedslot">
  <... some html ...>
  </fill-slot>
</use-macro>

This works without errors, except that only the first macro "shared" comes
out, the "master" one never gets processed :( I would've expected this to be
recursive ... Ah well :(

Thanks!
J.F.

-----Original Message-----
From: zope-bounces at zope.org [mailto:zope-bounces at zope.org] On Behalf Of J
Cameron Cooper
Sent: January 26, 2006 12:52 AM
To: Doyon, Jean-Francois
Cc: zope at zope.org
Subject: Re: [Zope] Can one nest macros with slots?

Doyon, Jean-Francois wrote:
> I can't seem to do this:
> 
> <use-macro>
>   <fill-slot>
>     <define-macro>
>       <... Some html ...>
>       <define-slot></define-slot>
>       <... Some html ...>
>     </define-macro>
>   </fill-slot>
> </use-macro>
> 
> Allowing me to nest multiple reusable templates?
> 
> I have objects with common interfaces which could easily share templates
...
> If I could do this! (The shared template still needs to endup in the 
> "master" template).
> 
> Or are there other techniques to achieve this?

Macros are decided at compile time so that you can ask a template (which is
not called) for its macros::

   here/main_template/macros/master

The code above would have macros being created in some other template at the
time this macros is used, and I cannot imagine how they would be available.

Why is a macro with whatever uses your common interfaces not suitable? 
You scenario is too vague for any other advice.

		--jcc

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