如何将 DBIx::Class::ResultSet 转换为 JSON

Question

我正在尝试从 DBIx::Class::ResultSet 获取 JSON 并且我得到了异常

encountered object 'Sql2Json::Model::DB::Book=HASH(0x6014f88)', 
but neither allow_blessed, convert_blessed nor allow_tags settings are
enabled (or TO_JSON/FREEZE method missing)

controller class 是Books.pm ：

package Sql2Json::Controller::Books;
use Moose;
use namespace::autoclean;
use JSON::XS;

BEGIN { extends 'Catalyst::Controller'; }

my $json = JSON::XS->new;

sub list : Local {
    my($self, $c) = @_;
    $c->stash(books_rs => $c->model('DB::Book'));
    $c->stash(books => [$c->stash->{books_rs}->search({}, {order_by => 'name ASC'})]);
    $c->stash(json_data => $json->convert_blessed->encode($c->stash->{books}));
    $c->forward('View::JSON');
}

__PACKAGE__->meta->make_immutable;

1;

根据这篇文章，祝福对象的编码就足够了：

$json->convert_blessed->encode($c->stash->{books})

我在这里错过了什么吗？

Answer 1

几乎一直，最好的方法是使用查询返回的行的get_inflated_column方法。

$books = $c->model('DB::Book');
$c->stash(json_data => [map {$_->get_inflated_columns} $books->all]);
$c->forward('View::JSON');