auto action の返値
auto 作ったらなんで動かないんだーってきちんと Manual 読んでない自分が馬鹿すぎる。
The auto action is also distinguished by the fact that you can break out of the processing chain by returning 0. If an auto action returns 0, any remaining actions will be skipped, except for end.Catalyst::Manual::Intro - Introduction to Catalyst - search.cpan.org