[Maypole] additional_data and template_args

[Dave Howorth]

Hi Peter

> Still really the same problem though.  You need to put that in every template
> you want menu data or put it in a template that it is included in every
> template. It'd be something like:
> [% IF objects.size == 1; obj = objects.0;  
>    ELSE; USE obj = Class("$classmetadata.name"); 
>    END;  
>    menu = obj.menu_data; 
> %]
>  
> Truth is though, i have a single wrapper I use all my pages within so I only
> need to put that in there and that's a fine solution for now. But i'd much
> rather just put it in additional_data once and be done with it. Aslo, maybe
> someone else's templating system isn't as cool as TT and they don't have
> wrappers or includes.  It may be a problem.

Ah, OK, I see a little more clearly what you're saying. In that case 
just delay calling menu_data. Take your additional_data code and make it 
  into a method of the request class:

sub get_menu_data {
     my $r = shift;
     # get object menu if we have only one object:
     if (@{$r->objects} eq 1) {
         $r=>objects->[0]->menu_data;
     }
     # else class menu
     else {
         $r->model_class->menu_data;
     }
}

Then in your template you write [% menu = request.get_menu_data %]

I hope :)

Cheers, Dave