[Catalyst] Re: Validating single arg id

[Aristotle Pagaltzis]

* Zbigniew Lukasiak <zzbbyy at gmail.com> [2009-10-21 14:15]:
> What is the advantage of this over:
>
> sub view : Local {
>  my ( $self, $c, $id ) = @_;
>  $self->start( $c, $id );
>  # do something with $c->stash->{obj}
>  return 1;
> }

Consider `/forum/7/topic/13/post/4/editform`. The end point in
that chain would be

    sub editform : Chained('post') {
        my ( $self, $c ) = @_;
        # ...
    }

The equivalent URI with Local would be `/editpost/7/13/4` and the
action would look like this:

    sub editform : Local {
        my ( $self, $c, $forum, $topic, $post ) = @_;
        $self->load_post( $forum, $topic, $post );
        # ...
    }

(And then of course `load_post` would have to look something like
the following.)

    sub load_post {
        my ( $self, $forum, $topic, $post ) = @_;
        $self->load_topic( $forum, $topic );
        # ...
    }

Notice what’s going on with the argument lists between the two
examples.

Which code structure looks more DRY and which URI structure more
consistent to you?

-- 
*AUTOLOAD=*_;sub _{s/(.*)::(.*)/print$2,(",$\/"," ")[defined wantarray]/e;$1}
&Just->another->Perl->hack;
#Aristotle Pagaltzis // <http://plasmasturm.org/>