运行cpanm --look DBIx::Class ; cd examples/Schema/
使用示例数据库。为什么JSON说串行化钩子丢失了?
use 5.024;
use strictures;
use JSON::MaybeXS qw(encode_json);
use MyApp::Schema qw();
use Sub::Install qw();
my $s = MyApp::Schema->connect('dbi:SQLite:db/example.db');
# Yes, I know Helper::Row::ToJSON exists.
Sub::Install::install_sub({
code => sub {
my ($self) = @_;
return { map {$_ => $self->$_} keys %{ $self->columns_info } };
},
into => $s->source('Track')->result_class,
as => 'TO_JSON',
});
my ($t) = $s->resultset('Cd')->first->tracks;
say ref $t->can('TO_JSON'); # 'CODE', ok
say ref $t->TO_JSON; # 'HASH', ok
say encode_json $t;
# encountered object 'MyApp::Schema::Result::Track=HASH(0x1a53b48)',
# but neither allow_blessed, convert_blessed nor allow_tags settings
# are enabled (or TO_JSON/FREEZE method missing) at …
我期望serialiser能够找到安装好的挂钩并使用它,但是我却得到了上面的错误。出了什么问题?
欢迎回来:) – simbabque