[Catalyst] AJAX with catalyst

[Jonathan Rockway]

On Saturday 12 May 2007 06:36:05 am Dmitri Pissarenko wrote:
> Hello!
>
> I'm learning catalyst and have written a simple application, which
> lets user display, edit, add data to/from database.
>
> Now I want to make it more user-friendly by using some elements known
> from desktop apps:
>
> 1) Popup windows
> 2) Context menus
> 3) Panels, which I can drag from one place to another. That is, I have
> four panels (with different content) on a page, and I can change their
> places by dragging one panel to another place.

There are a variety of toolkits that will do this for you.  Dojo is the most 
advanced for desktop-style UIs.  There's also YUI, GWT, mootools, mochikit, 
jquery, and prototype.  Don't use prototype unless you like to debug lots of 
weird javascript problems.

Most of these toolkits want JSON back from your application, so you'll 
probably want to set up a REST interface with Catalyst::Action::REST and use 
that for the AJAX.  Usually rendering to JSON is faster (both in render time 
and transfer time) than rendering to HTML, so resist the urge to use AJAX 
kits where you send fully-rendered HTML to the AJAX library.  Just send the 
data and let the rendering happen on the client side.

Finally, Jemplate (along with Catalyst::View::Jemplate) is a great way to push 
the rendering of your Template Toolkit templates off to the client.

-- 
package JAPH;use Catalyst qw/-Debug/;($;=JAPH)->config(name => do {
$,.=reverse qw[Jonathan tsu rehton lre rekca Rockway][$_].[split //,
";$;"]->[$_].q; ;for 1..4;$,=~s;^.;;;$,});$;->setup;
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