[Catalyst] Jemplate View and Catalyst Object

[Jonathan Rockway]

On Wednesday 18 July 2007 02:39:22 pm Patrick McDonnell wrote:
> TTSite view doesn't seem to exist under the Jemplate views.  For instance,
> in a TTSite template, I can do something like [%
> Catalyst.uri_for('myAction') %], but I cannot do that under the Jemplate
> templates.

Right.  [% ... %]s are expanded on the *client side* by the browser.  Of 
course they can't call methods on the Catalyst object.

Here's a solution.  In a controller where your AJAXy actions live, do 
something like:

  package MyApp::Controller::AJAXy::Stuff;
  ....
  sub begin :Private {
     $c->stash->{action} = { foo => $c->uri_for('/foo'), ... };
  }

   # your actions go here
   sub foo :Local { ... }  
   ....

  sub end :Private {
     # convert stash to JSON or whatever
  }

Basically you just send some extra metadata (about actions) back with each 
response.  Then in your jemplate you can say:

  <a href="[% action.foo %]/some/arguments">whatever</a>

Keep in mind that TT's "uri" filter is available for escaping some/arguments 
if necessary.

Anyway, this is not ideal... but it is easy to do.  

For extra credit create an RPC interface and integrate it with Jemplate and 
Catalyst :)  The Asynapse talk at YAPC::Asia inspired me to think about doing 
something like that, but I haven't gotten to it yet.  Implementations 
welcome.

Regards,
Jonathan Rockway
-- 
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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