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package Reaction::InterfaceModel::Search::Spec;
use Reaction::Role;
use Method::Signatures::Simple;
use JSON::Any;
use Scalar::Util qw(weaken);
use namespace::clean -except => [ qw(meta) ];
has '_search_spec' => (
is => 'ro', lazy_build => 1, clearer => '_clear_search_spec',
);
has '_dependent_clients' => (
is => 'ro', default => sub { {} },
);
method register_dependent ($dep, $callback) {
weaken($self->_dependent_clients->{$dep} = $callback);
}
method unregister_dependent ($dep) {
delete $self->_dependent_clients->{$dep};
}
after '_clear_search_spec' => method () {
$_->($self) for grep defined, values %{$self->_dependent_clients};
};
requires '_build__search_spec';
method filter_collection ($coll) {
return $coll->where(@{$self->_search_spec});
}
method _to_string_fetch ($attr) {
return () unless $self->${\($attr->get_predicate_method||sub{ 1 })};
my $value = $self->${\$attr->get_read_method};
return ($attr->name => $self->_to_string_pack_value($attr->name, $value));
}
requires '_to_string_pack_value';
method to_string () {
my %val = map { $self->_to_string_fetch($_) }
grep { $_->name !~ /^_/ } $self->meta->get_all_attributes;
return to_json(\%val, { canonical => 1 });
}
requires '_from_string_unpack_value';
method from_string ($class: $string, $other) {
my %raw = %{from_json($string)};
my %val;
@val{keys %raw} = map {
$class->_from_string_unpack_value($_, $raw{$_})
} keys %raw;
return $class->new({ %val, %{$other||{}} });
}
1;
|
