package Data::MultiValued::AttributeTrait::Tagged;
use Moose::Role;
use Data::MultiValued::Tags;
use Data::MultiValued::AttributeAccessors;
use MooseX::Types::Moose qw(Str HashRef);
use Try::Tiny;
use namespace::autoclean;
has 'full_storage_slot' => (
is => 'ro',
isa => Str,
lazy_build => 1,
init_arg => undef,
);
sub _build_full_storage_slot { shift->name . '__MULTIVALUED_STORAGE__' }
around slots => sub {
my ($orig, $self) = @_;
return ($self->$orig(), $self->full_storage_slot);
};
sub set_full_storage {
my ($self,$instance) = @_;
my $ret = Data::MultiValued::Tags->new();
$self->associated_class->get_meta_instance->set_slot_value(
$instance,
$self->full_storage_slot,
$ret,
);
return $ret;
}
sub get_full_storage {
my ($self,$instance) = @_;
return $self->associated_class->get_meta_instance
->get_slot_value(
$instance,
$self->full_storage_slot,
);
}
sub full_storage {
my ($self,$instance) = @_;
return $self->get_full_storage($instance)
|| $self->set_full_storage($instance);
}
sub accessor_metaclass { 'Data::MultiValued::AttributeAccessors' }
after install_accessors => sub {
my ($self) = @_;
my $class = $self->associated_class;
for my $meth (qw(accessor reader writer predicate clearer)) {
my $check = "has_$meth";
next unless $self->$check;
my $type = "tagged_$meth";
my $basename = $self->$meth;
die 'MultiValued attribute trait is not compatible with subref accessors'
if ref($basename);
my $name = "${basename}_tagged";
$class->add_method(
$self->_process_accessors($type => $name,0)
);
}
};
sub load_tagged_value {
my ($self,$instance,$opts) = @_;
my $value;my $found=1;
try {
$value = $self->full_storage($instance)->get($opts);
}
catch {
unless (ref($_) && $_->isa('Data::MultiValued::Exceptions::NotFound')) {
die $_;
}
$found = 0;
};
if ($found) {
$self->set_raw_value($instance,$value);
}
else {
$self->raw_clear_value($instance);
}
}
sub raw_clear_value {
my ($self,$instance) = @_;
$self->associated_class->get_meta_instance
->deinitialize_slot(
$instance,
$self->name,
);
}
sub store_tagged_value {
my ($self,$instance,$opts) = @_;
my $value = $self->get_raw_value($instance);
$self->full_storage($instance)->set({%$opts,value=>$value});
}
our $dyn_opts = {};
before get_value => sub {
my ($self,$instance) = @_;
$self->load_tagged_value($instance,$dyn_opts);
};
sub get_tagged_value {
my ($self,$instance,$opts,$value) = @_;
local $dyn_opts = $opts;
return $self->get_value($instance,$value);
}
after set_initial_value => sub {
my ($self,$instance,$value) = @_;
$self->store_tagged_value($instance,$dyn_opts);
};
after set_value => sub {
my ($self,$instance,$value) = @_;
$self->store_tagged_value($instance,$dyn_opts);
};
sub set_tagged_value {
my ($self,$instance,$opts,$value) = @_;
local $dyn_opts = $opts;
return $self->set_value($instance,$value);
}
before has_value => sub {
my ($self,$instance) = @_;
$self->load_tagged_value($instance,$dyn_opts);
};
sub has_tagged_value {
my ($self,$instance,$opts) = @_;
local $dyn_opts = $opts;
return $self->has_value($instance);
}
after clear_value => sub {
my ($self,$instance) = @_;
$self->full_storage($instance)->clear($dyn_opts);
};
sub clear_tagged_value {
my ($self,$instance,$opts) = @_;
local $dyn_opts = $opts;
return $self->clear_value($instance);
}
sub get_tagged_read_method {
my $self = shift;
return $self->get_read_method . '_tagged';
}
sub get_tagged_write_method {
my $self = shift;
return $self->get_write_method . '_tagged';
}
package Moose::Meta::Attribute::Custom::Trait::MultiValued::Tagged;{
sub register_implementation { 'Data::MultiValued::AttributeTrait::Tagged' }
}
1;
