Data::Conveyor::Ticket::Payload::Instruction::Container - Stage-based conveyor-belt-like ticket handling system

use 5.008;
use strict;
use warnings;

package Data::Conveyor::Ticket::Payload::Instruction::Container;
BEGIN {
  $Data::Conveyor::Ticket::Payload::Instruction::Container::VERSION = '1.103130';
}
# ABSTRACT: Stage-based conveyor-belt-like ticket handling system

# ptags: DCTPIC
use parent qw(
  Data::Container
  Class::Scaffold::Storable
);

# Override stringification to return an unblessed copy of the object's hash
# because our items don't stringify well.
sub stringify { +{%{$_[0]}} }

sub check {
    my ($self, $exception_container, $ticket) = @_;
    $_->check($exception_container, $ticket) for $self->items;
}

sub get_item_by_type {
    my ($self, $type) = @_;
    for my $instruction ($self->items) {
        return $instruction if $instruction->type eq $type;
    }
    undef;
}

# apply_fields_to_object() only handles single values; if you expect a list,
# use this method and apply the instructions yourself.
sub get_items_of_type {
    my ($self, $type) = @_;
    my @retval = grep { $_->type eq $type } $self->items;
    wantarray ? @retval : \@retval;
}

sub apply_fields_to_object {
    my ($self, $object, %field_map) = @_;
    while (my ($type, $field) = each %field_map) {
        my $instruction = $self->get_item_by_type($type);
        next unless defined $instruction;
        $object->$field($instruction->value);
    }
}
1;


__END__