use Moose;
use Scalar::Util qw(refaddr);
-our $VERSION = '0.20';
+our $VERSION = '0.31';
our $AUTHORITY = 'cpan:STEVAN';
# the class marker when
default => sub {{}}
);
-has 'object' => (is => 'rw', isa => 'Object');
+has 'object' => (is => 'rw', isa => 'Object', predicate => '_has_object');
has 'class' => (is => 'rw', isa => 'Str');
## this is the API used by other modules ...
if ref $value;
if (defined $value && $attr->has_type_constraint) {
- my $type_converter = $self->find_type_handler($attr->type_constraint);
+ my $type_converter = $self->find_type_handler($attr->type_constraint, $value);
(defined $type_converter)
|| confess "Cannot convert " . $attr->type_constraint->name;
$value = $type_converter->{collapse}->($value, $options);
}
if (defined $value && $attr->has_type_constraint) {
- my $type_converter = $self->find_type_handler($attr->type_constraint);
+ my $type_converter = $self->find_type_handler($attr->type_constraint, $value);
$value = $type_converter->{expand}->($value, $options);
}
return $value;
} grep {
# Skip our special skip attribute :)
!$_->does('MooseX::Storage::Meta::Attribute::Trait::DoNotSerialize')
- } ($self->object || $self->class)->meta->get_all_attributes;
+ } ($self->_has_object ? $self->object : $self->class)->meta->get_all_attributes;
}
## ------------------------------------------------------------------
}
sub find_type_handler {
- my ($self, $type_constraint) = @_;
-
+ my ($self, $type_constraint, $value) = @_;
+
# check if the type is a Maybe and
# if its parent is not parameterized.
# If both is true recurse this method
# using ->type_parameter.
- return $self->find_type_handler($type_constraint->type_parameter)
- if $type_constraint->parent eq 'Maybe'
- and not $type_constraint->parent->can('type_parameter');
+ return $self->find_type_handler($type_constraint->type_parameter, $value)
+ if ($type_constraint->parent && $type_constraint->parent eq 'Maybe'
+ and not $type_constraint->parent->can('type_parameter'));
+
+ # find_type_for is a method of a union type. If we can call that method
+ # then we are dealign with a union and we need to ascertain which of
+ # the union's types we need to use for the value we are serializing.
+ if($type_constraint->can('find_type_for')) {
+ my $tc = $type_constraint->find_type_for($value);
+ return $self->find_type_handler($tc, $value) if defined($tc);
+ }
# this should handle most type usages
# since they they are usually just
$TYPES{$type_handler_name}
}
+no Moose::Role;
+
1;
__END__
=head1 DESCRIPTION
-No user serviceable parts inside. If you really want to know, read the source :)
+There really aren't any major user serviceable parts here. However the typical
+use case is adding new non-Moose classes to the type registry for
+serialization. Here is an example of this for DateTime objects. This
+assumes a C<DateTime> type has been registered.
+
+ MooseX::Storage::Engine->add_custom_type_handler(
+ 'DateTime' => (
+ expand => sub { DateTime->new(shift) },
+ collapse => sub { (shift)->iso8601 },
+ )
+ );
=head1 METHODS