Re: [cgi-prototype-users] Reusable Components

[Jim B. <cb...@bu...>]

For standard header/footer stuff for pages, we take care of this on the 
template side since this tends to be view-like information. We put it 
in our wrapper.tt (along with error-handling code) so it gets run for 
each page. Then each page.tt only needs to handle display duties for 
the middle part of the page.

With Template Toolkit, you can use INCLUDE to pull in other templates 
easily in the display phase.

If you have dynamic data in your headers and footers, you can handle 
that a few ways. The easiest is probably to add subs to your App.pm 
base class and call back to them from TT. Since self is sent to the 
template, you can call any of the methods from there.

Another way is to create new slots, generate the data in your pm files, 
stick the data in the slot, then reference it from the Template.

In general, I've found that one pm = one page, so you usually won't 
create separate pm files for smaller components. If it is a shared 
component, you can stick it in App.pm.

And for what it's worth, CGI::Prototype::Hidden adds some nice 
features, so you may consider checking that out.

Hope this helps.

Jim

On Apr 28, 2005, at 1:25 AM, LD wrote:

> Hi there,
>
> obviously an active list :-)
>
> Anyway - I'm so far really liking CGI::Prototype (with its simple MVC 
> implementation) but what I'm not clear on is the best way to 
> incorporate Reusable Components.
>
> Say you've got the following components which all inherit from 
> CGI::Prototype...
>
> Header: (reusable)
> 	/Header.pm
> 	/Header.tt
>
> Various Pages:
> 	/Main.pm
> 	/Main.tt
> 	/Login.pm
> 	/Login.tt
> 	<...>
>
> Footer: (reusable)
> 	/Footer.pm
> 	/Footer.tt
>
> ...and somecgi.cgi which basically does
> 	Main->activate;
>
> What's the best way of including the output of Header and Footer in 
> the render phase - i.e., as if you'd concated the output of:
> 	Header->activate; Main->activate; Footer->activate;
>
> Any thoughts?
>
> Cheers,
> LD
>
>
>
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==========================================
Jim Brandt
Administrative Computing Services
University at Buffalo