I'm puzzled that nobody commented this topic. Parameterized controller roles seem to me as a handy tool for detailed modeling of parts of action chains.

I was also confused by the test in MooseX::MethodAttributes distribution because it doesnot work with attributes.

Unsuccessfull with mixing MooseX::MethodAttributes and MooseX::Role::Parameterized I tried to modify 'action' hash in controller's config (described in Catalyst::Controller) instead. It seems to work. 

role {
    my $param = shift;
    my $NAME = $param->name;
    my $ROOT = $param->root;
    my $MODEL = $param->model_name;
    my $PATH_PART = $param->path_part;

    method model => sub { $_[1]->model( $MODEL ) };
    method root => sub { ... };
    method list => sub {...};

    # The purpose of this 'before' is to add keys
    # into config hash first (only first) time the config is touched.
    my $config_called;
    before config => sub {
        return if $config_called++;

        my $action_config = shift()->config->{action} ||= {};
        %$action_config = (
            %$action_config,
            root => {
                Chained     => [$ROOT],
                PathPart    => [$PATH_PART],
                CaptureArgs => [0],
            },

            list => {
                Chained  => ['root'],
                PathPart => [''],
                Args     => [0],
            }
        );
    };
};

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In reply to Re: Catalyst Parameterized Role with Attributes? by roman
in thread Catalyst Parameterized Role with Attributes? by duelafn

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