[Catalyst] Chained('.') counter-intuitive?

[John Napiorkowski]

--- Pedro Melo <melo at simplicidade.org> wrote:

> Hi,
> 
> I've been learning to use chained actions in the
> past few hours, and  
> I must say I admire the though that went into them
> and the default  
> values for each attribute, they are extremely
> elegant.
> 
> The only issue I have is with Chained('.').
> 
> I prefer to keep the actions related to the same
> concept in the same  
> controller. For example, if I have a Film
> controller, I expect to  
> find there the view and delete actions, for example.
> 
> With chained actions, I also expect to see this type
> of urls:
> 
> /films/1/view
> /films/2/delete
> 
> Right now I have to write this:
> 
> package cad::Controller::Films;
> 
> use strict;
> use warnings;
> use base 'Catalyst::Controller';
> 
> sub films  : Chained          CaptureArgs(1) {}
> sub view   : Chained('films') Args(0)        {}
> sub delete : Chained('films') Args(0)        {}
> 
> I was expecting to write Chained('.') in sub view
> and sub delete, but  
> to do that I would have to move them to a different
> controller,  
> cad::Controller::Films::View and C::Films::Delete.
> 
> My reasoning is that '.' is the current controller,
> not the parent  
> controller. I would use '..' for that one...
> 
> Any thoughs?

I've also wished I could do this.  I often do
something like:

package myapp::Controller::members

sub members :Chained('/') CaptureArgs(0) {}

sub member :Chained('members') CaptureArgs(1) {}

package myapp::Controller::members::member

sub friends :Chained('.') CaptureArgs(0) {}

Now I can use the Chained('.') in the second package
and it will map '.' to '/members/member' based on the
package name, which is a private name to the action in
the 'parent' controller, right?  This is great and
makes it easy with my data model to find exactly what
I need.

Based on this you'd think you could change:

sub member :Chained('members') CaptureArgs(1) {}

to:

sub member :Chained('.') CaptureArgs(1) {}

But I can never get this to work.  I would assume that
'.' would map to '/members', based on the controller
action namespace, but it doesn't seem to do that.

I would this it would work, based on the following
from Chained.pm:

   if (defined($parent) && length($parent)) {
        if ($parent eq '.') {
            $parent = '/'.$action->namespace;
        } .....

Anyone out there know if this is supposed to work?

It would be great if I could figure this out, it would
reduce some of the boilerplate code in my controllers.
 Actually the controllers are starting to look pretty
bare for me, since I've refactored a lot of the
activity into action classes.

--john

> 
> best regards,
> --
> Pedro Melo
> JID: xmpp:melo at simplicidade.org
> 
> 
> 
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