Re: #visit / #recurse with alternative macros / display formats

Thursday, June 7, 2012, 3:11:08 PM, Eirik Lygre wrote:

> We have a couple of scenarios where we use the recursive templating support,
> with #visit or #recurse automatically calling a macro named @Dimensions.
>
> Now, sometimes we want to / need to use the same template for multiple layouts.
> However, since the macro name is determined automatically, we need something
> smart.
>
> 1) Is there an obvious solution that we haven't seen?
>
> We were thinking of using namespaces. However, we cannot refer to external
> templates, so we'd need to create macros in different namespaces from the same
> template, which doesn't seem possible:
>
> [#if format == 'full']
>    [#visit dimensions using full]
> [#else]
>    [#visit dimensions]
> [#/if]

Just in case you haven't realized, you don't need if/else-s around
each #visit/#recurse calls. You could just do this at the beginning of
the tempalte:

 [#if format == 'full']
    [#assign ns = full]
 [#else]
    [#visit ns = .namespace]
 [#/if]

and then later:

  [#visit dimensions using ns]

Note that ns also can be sequence of namespaces, so you could do
something like:

  [#visit ns = [.namespace, extensions]]

> [#macro @Dimension]        [#-- Default namespace --]
> ...
> [/#macro]
>
> [#macro @full.Dimension]   [#-- Use namespace "full" --]
> ...
> [/#macro]
>
> 2) Is this possible?

Nope... The problem is that the 2nd parameter to #visit/#recurse is a
real namespace (or a sequence of those), not just map that you could
generate freely.

> Should it be?

As far as I understand, you need this because you can't refer
(#import) to other templates. That's a quite severe constraint.
Addressing that sounds like the real solution... if that's possible.

> Or, any other suggestions?
>
> Eirik

-- 
Best regards,
 Daniel Dekany


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