Cannot have optional parameters

[vlad-ghita]

I have this setup:

package Foo;
use Moo;

has p1 => ( is => 'rw' );
has p2 => ( is => 'rw' );
has p3 => ( is => 'rw' );
has p4 => ( is => 'rw' );

package main;

my $c = container 'container' => as {
    service 'foo' => (
        class => 'Foo',
        parameters => {
            p1 => { required => 1 },
            p2 => { required => 0 },
            p3 => { },
            p4 => { },
        }
    );
};

my $foo = $c->resolve(service => 'foo', parameters => { p4 => 'test' });

I get this error:

Mandatory parameters 'p1', 'p2', 'p3' missing in call to Bread::Board::Service::WithParameters::check_parameters.

Why is p2 required? It has required => 0.

[vlad-ghita]

Fixed it ... Must used optional => 1

my $c = container 'container' => as {
    service 'foo' => (
        class => 'Foo',
        parameters => {
            p1 => { required => 1 },
            p2 => { optional => 1 },
            p3 => { },
            p4 => { },
        }
    );
};

[yanick]

Yeah, the parameters are groomed bu MooseX::Params::Validate, and that module will treat all parameters as required unless optional or default is present (it's documented in B::B::Service::WithParameters).