This article was migrated from http://rails.office.drecom.jp/hibi/archive/20

アプリでどんなエラーでも拾うとき、rescue_action_in_publicを使います。
http://wiki.rubyonrails.org/rails/pages/HowtoConfigureTheErrorPageForYourRailsApp
http://wiki.rubyonrails.org/rails/pages/DynamicErrorPagesWish

で、その際、UnkownActionなどを扱う場合は、フルパス？で指定しないといけないみたいです。
http://lists.rubyonrails.org/pipermail/rails/2006-February/016803.html

ActiveRecord::RecordNotFound => ：：ActiveRecord::RecordNotFound

--------------------------------------------------
def rescue_action_in_public(exception)
case exception
when ::ActiveRecord::RecordNotFound, ::ActionController::RoutingError, ::ActionController::UnknownAction
render(:file => "#{RAILS_ROOT}/public/404.html",
:status => "404 Not Found")
else
show_error
render(:file => "#{RAILS_ROOT}/public/500.html",
:status => "500 Error")
end
end http://rails.office.drecom.jp/hibi/archive/20

This article was migrated from http://rails.office.drecom.jp/hibi/archive/20