Hello Monks,

Following a previous conversation (for which I thank all the Monks):
href="http://www.perlmonks.org/?node_id=887227

I have started to use MooseX::SimpleConfig to have object constructions from config files.

But I have a problem related to types:
I would like to have an ArrayRef of objects, but I forced to have an ArrayRef of hashes.

How I can force a type to be another one?

Here there is some code, just to have an idea.

I inserted only the essential parts.

YAML FILE: 
pages:
- Page:
   URL: http://www.perlmonks.org/

- Page:
   URL: http://www.perl.org/

[download]

Page Class: 
package Page;
our $VERSION=0.01;

use Moose; 

has 'URL' => (is => 'ro', isa => 'Str',required => 1);

__PACKAGE__->meta->make_immutable;

1;

[download]


Objects container class (with ArrayRef): 
package PagesGenerator;
our $VERSION=0.01;

use Moose; 
with 'MooseX::SimpleConfig';

use Page;


has 'pages'=>(
              is=>'rw',
              isa=>'ArrayRef[Page]',
              default => sub { [ ] },
         );


__PACKAGE__->meta->make_immutable;

1;

[download]


And finally on main script, the object construction: 

use strict;
use warnings;
our $VERSION=0.01;

use FindBin qw($Bin);
my $p=PagesGenerator->new_with_config(configfile => "$Bin/pages-temp.y
+aml");

[download]
But, while page is an ArrayRef[Page] I have this error: 
Attribute (pages) does not pass the type constraint because: Validatio
+n failed for 'ArrayRef[Page]' with value ARRAY(0x22422e8) at /usr/loc
+al/share/perl/5.10.0/MooseX/ConfigFromFile.pm line 44
    MooseX::ConfigFromFile::new_with_config('PagesGenerator', 'configf
+ile', 'pages-temp.yaml') called at navigator.pl line 14

[download]

If I choose an ArrayRef[HashRef], all works fine.

The problem is that I need exaclty an ArrayRef[Page].

So I could coerce one type in another.
I readed something about coercion in Moose, but I don't understand how to use it in my case.

Any suggestions is welcome.

Thank you!

In reply to Moose from ArrayRef[HashRef] to ArrayRef[Object] by saintex

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