On 11/23/2010 09:12 PM, Bill Moseley wrote:
I have a controller base class that needs to stash some data per
request. My question is where to put that data (stash would seem
best) -- and how to name it.
This class is an auto-CRUD-like controller base class that does the
mundane work of fetching objects. For example:
package MyApp::Controller::CD;
use parent 'My::Controller::CRUD';
1;
Which then will provided an action that handles "GET /cd/$id" which
will fetch the CD object and place it someplace. For example, I could
just put it in $c->stash->{item}.
Now, controllers can be chained together, so for example I might have
a chain /cd/*/track/*/movement/* which all use the same base class,
and where in the "movement" action I might want to be able to fetch
the cd and track objects fetched when processing the chain. So,
$c->stash->{item} isn't such a good name.
Suggeston: You already have the information encoded into the URI in a
guaranteed unique way; keep the same convention for the stash.
package MyApp::WUI::Controller::CD;
use Moose;
use namespace::autoclean;
BEGIN {extends 'Catalyst::Controller'}
sub index :Chained('/') :PathPart('cd') :CaptureArgs(1) {
my ($self, $c, $id) = @_;
$c->stash(cd =>
$c->model('MyApp')->resultset('CD')->find({id=>$id}));
}
package MyApp::WUI::Controller::CD::Track;
use Moose;
use namespace::autoclean;
BEGIN {extends 'Catalyst::Controller'}
sub index :ChainedParent :PathPart('track') :CaptureArgs(1) {
my ($self, $c, $id) = @_;
$c->stash(track => $c->stash->{$cd}->track($id));
}
package MyApp::WUI::Controller::CD::Track::Movement;
use Moose;
use namespace::autoclean;
BEGIN {extends 'Catalyst::Controller'}
sub index :ChainedParent :PathPart('movement') :CaptureArgs(1) {
my ($self, $c, $id) = @_;
$c->stash(movement => $c->stash->{track}->movement($id));
}
-Sir
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