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Date: Tue, 04 Sep 2001 20:18:44 -0700
Subject: Re: Dynamic macro names?
From: Jon Stevens <jon@latchkey.com>
To: velocity-user <velocity-user@jakarta.apache.org>
Message-ID: <B7BAE7A4.22E0C%jon@latchkey.com>
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on 9/4/01 6:43 PM, "Mark de Reeper" <markdr@yahoo.com> wrote:

> Is it possible to call a macro where part/all of the name is dynamic?

I doubt it. Did you try it?

> e.g.
> 
>   #set( $themename = "default" )
>   #${themename}header()
> 
> I do not expect it to work based on what I read in the documentation.
> Maybe there is a better way to achieve what this is trying to do...
> 
> I want to define a bunch of web themes, i.e. table headers/footers etc
> that can be referenced as macros. This allows me to have them all
> loaded at startup of Velocity and available to all templates. The
> macro's therefor need unique names.
> 
> I want to be able to switch to different themes, based on it's name.
> 
> The nice thing about having the theme elements as macro's is that I can
> keep them in a template file rather than stored away in some properties
> file, which makes it easier for a HTML type person to create them.
> 
> Having them as macro's also means that each theme macro can refer to
> existing context elements.

You really should consider using a framework like Turbine which allows you
to define Layouts and Navigations (ie: headers/footers/pieces of foo). Doing
this with macro's is not a good idea.

-jon