[Catalyst] about req.param

[Carl Franks]

On 11/04/2008, Fayland Lam <fayland at gmail.com> wrote:
> code as follows:
>
>  sub test : Local {
>    my ($self, $c) = @_;
>      my $test = {
>        a => $c->req->param('a'),
>        b => $c->req->param('b'),
>        c => $c->req->param('c'),
>    };
>    $c->res->body(Dumper(\$test));
>  }
>
>  when visit as test?b=1
>  it shows
>
>  $VAR1 = \{
>            '1' => 'c',
>            'a' => 'b'
>          };
>
>
>  hmm, a trap I think. need use $c->req->param('a') || ''. something not so
> good.

I recall in an earlier thread (or maybe on irc) mst said param()
should be deprecated for methods with guaranteed return types - that
was why I added param_value(), param_array() and param_list() to
FormFu.

If this were added to Catalyst, you could do this with no problems...
    my $test = {
      a => $c->req->param_value('a'),
      b => $c->req->param_value('b'),
      c => $c->req->param_value('c'),
  };

Carl