Railsのコントローラーで、ステータスコードを返すときは
head 200
のように、ステータスコードの数字で返すこともできますが
head :ok
のように、数字の代わりにシンボルを使うこともできます。
しかしRailsのリファレンスを眺めていても :ok 以外のシンボル名がわからなかったので調べてまとめました。
参考：http://rubydoc.info/gems/rack/1.2.1/Rack/Utils
# 確認方法
Rack::Utils.status_code(:bad_gateway) # => 502
Rack::Utils.status_code(:bad_gateway) # => 502
ちなみに、辞書にないシンボルを渡すと問答無用で500を返します。ですから、500を返すときは
head :ng
と、やっています。
| コード | 名前 | シンボル |
|---|---|---|
| 100 | Continue | :continue |
| 101 | Switching Protocols | :switching_protocols |
| 102 | Processing | :processing |
| 200 | OK | :ok |
| 201 | Created | :created |
| 202 | Accepted | :accepted |
| 203 | Non-Authoritative Information | :non_authoritative_information |
| 204 | No Content | :no_content |
| 205 | Reset Content | :reset_content |
| 206 | Partial Content | :partial_content |
| 207 | Multi-Status | :multi_status |
| 226 | IM Used | :im_used |
| 300 | Multiple Choices | :multiple_choices |
| 301 | Moved Permanently | :moved_permanently |
| 302 | Found | :found |
| 303 | See Other | :see_other |
| 304 | Not Modified | :not_modified |
| 305 | Use Proxy | :use_proxy |
| 306 | Reserved | :reserved |
| 307 | Temporary Redirect | :temporary_redirect |
| 400 | Bad Request | :bad_request |
| 401 | Unauthorized | :unauthorized |
| 402 | Payment Required | :payment_required |
| 403 | Forbidden | :forbidden |
| 404 | Not Found | :not_found |
| 405 | Method Not Allowed | :method_not_allowed |
| 406 | Not Acceptable | :not_acceptable |
| 407 | Proxy Authentication Required | :proxy_authentication_required |
| 408 | Request Timeout | :request_timeout |
| 409 | Conflict | :conflict |
| 410 | Gone | :gone |
| 411 | Length Required | :length_required |
| 412 | Precondition Failed | :precondition_failed |
| 413 | Request Entity Too Large | :request_entity_too_large |
| 414 | Request-URI Too Long | :request_uri_too_long |
| 415 | Unsupported Media Type | :unsupported_media_type |
| 416 | Requested Range Not Satisfiable | :requested_range_not_satisfiable |
| 417 | Expectation Failed | :expectation_failed |
| 422 | Unprocessable Entity | :unprocessable_entity |
| 423 | Locked | :locked |
| 424 | Failed Dependency | :failed_dependency |
| 426 | Upgrade Required | :upgrade_required |
| 500 | Internal Server Error | :internal_server_error |
| 501 | Not Implemented | :not_implemented |
| 502 | Bad Gateway | :bad_gateway |
| 503 | Service Unavailable | :service_unavailable |
| 504 | Gateway Timeout | :gateway_timeout |
| 505 | HTTP Version Not Supported | :http_version_not_supported |
| 506 | Variant Also Negotiates | :variant_also_negotiates |
| 507 | Insufficient Storage | :insufficient_storage |
| 510 | Not Extended | :not_extended |