{"id":12216,"date":"2020-11-17T12:27:11","date_gmt":"2020-11-17T03:27:11","guid":{"rendered":"http:\/\/www.code-magagine.com\/?p=12216"},"modified":"2023-05-27T22:45:09","modified_gmt":"2023-05-27T13:45:09","slug":"%e3%80%90ruby-on-rails%e3%80%91%e3%80%8cenum%e3%80%8d%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6","status":"publish","type":"post","link":"http:\/\/www.code-magagine.com\/?p=12216","title":{"rendered":"\u3010Ruby on Rails\u3011\u300cEnum\u300d\u306b\u3064\u3044\u3066"},"content":{"rendered":"

Enum\u3068\u306f\uff1f<\/h2>\n

Rails4.1\u304b\u3089\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u300cActiveRecord::Enum\u300d\u3068\u3044\u3046\u30e2\u30b8\u30e5\u30fc\u30eb<\/strong><\/span>\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n

\u5b9f\u88c5\u65b9\u6cd5<\/h2>\n

\u5bfe\u8c61\u30ab\u30e9\u30e0<\/h3>\n

integer\u578b\u306e\u30ab\u30e9\u30e0\u304c\u5bfe\u8c61\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u30e2\u30c7\u30eb\u30af\u30e9\u30b9<\/h3>\n

\u4e0b\u8a18\u306e\u3088\u3046\u306b\u5bfe\u8c61\u304b\u3089\u3080\u306benum\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/p>\n

class User < ApplicationRecord\r\n  enum \u5bfe\u8c61\u30ab\u30e9\u30e0\u540d: [ :\u8a2d\u5b9a\u50241, :\u8a2d\u5b9a\u50242 ]\r\nend<\/pre>\n
\u8a2d\u5b9a\u50241\u306b\u306f\u300c0\u300d\u3001\u8a2d\u5b9a\u50242\u306b\u306f\u300c1\u300d\u3068\u3044\u3046\u3088\u3046\u306b\u524d\u304b\u3089\u9806\u756a\u306b\u8a2d\u5b9a\u5024\u306b\u7d10\u3065\u304f\u5024\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n
\u5024\u3092\u5165\u308c\u3066\u307f\u308b\u3002<\/h3>\n
User.create(gender:0,name:\"\u6b21\u90ce\")<\/pre>\n
rails console\u3067\u78ba\u8a8d\u3059\u308b\u3068\u4e0b\u8a18\u306e\u3088\u3046\u306b\u6307\u5b9a\u3059\u308b\u3068\u6570\u5024\u3067\u306f\u306a\u304f\u8a2d\u5b9a\u5024\u304c\u5e30\u3063\u3066\u6765\u307e\u3059\u3002\uff08\u306a\u304a\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u306f\u3061\u3083\u3093\u3068\u6570\u5024\u304c\u633f\u5165\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3054\u5fc3\u914d\u306a\u304f\uff01\uff09<\/strong><\/span><\/p>\n
>> User.find(2).gender\r\n  User Load (0.1ms)  SELECT \"users\".* FROM \"users\" WHERE \"users\".\"id\" = ? LIMIT ?  [[\"id\", 2], [\"LIMIT\", 1]]\r\n=> \"male\"<\/pre>\n
\u4e0b\u8a18\u306e\u3088\u3046\u306b\u30ab\u30e9\u30e0\u540d\u306b\u300cs\u300d\u3092\u3064\u3051\u3066\u3042\u3052\u308b\u3068Hash\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002<\/p>\n
>> User.genders\r\n=> {\"male\"=>0, \"famale\"=>1}\r\n\r\n<\/pre>\n
Enumerize<\/h2>\n
enum\u3068\u4f3c\u305f\u3088\u3046\u306a\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304c\u3001\u6a5f\u80fd\u8c4a\u5bcc\u306aGem\u3067\u5b9f\u969b\u306b\u958b\u767a\u73fe\u5834\u3067\u3082\u3088\u304f\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u30e1\u30ea\u30c3\u30c8<\/h3>\n
Enum\u306b\u6bd4\u3079\u308b\u3068\u5177\u4f53\u7684\u306b\u4e0b\u8a18\u306e\u3088\u3046\u306a\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
    \n
  • \u30c7\u30d5\u30a9\u30eb\u30c8\u3067i18n\u5bfe\u5fdc<\/li>\n
  • \u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u8a2d\u5b9a<\/li>\n
  • scope\u540d\u8a2d\u5b9a\u306e\u67d4\u8edf\u3055<\/li>\n<\/ul>\n
    \u5b9f\u4f8b<\/h3>\n
    \u4e0b\u8a18\u306e\u3088\u3046\u306b\u30e2\u30c7\u30eb\u306b\u5bfe\u3057\u3066\u300cextend Enumerize\u300d\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n
    class User < ApplicationRecord\r\n  extend Enumerize\r\n\r\n  enumerize :gender, in: { male: 0, famale: 1 }\r\nend<\/pre>\n
    \u4e0b\u8a18\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3059\u308c\u3070\u3001\u5024\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002\uff08DB\u306b\u306finteger\u306e\u5024\u304c\u5165\u3063\u3066\u3044\u307e\u3059\u304c\u3001integer\u306b\u5bfe\u5fdc\u3059\u308b\u5024\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002\uff09<\/p>\n
    >> User.find(7).gender\r\n   (0.7ms)  SELECT sqlite_version(*)\r\n  User Load (0.2ms)  SELECT \"users\".* FROM \"users\" WHERE \"users\".\"id\" = ? LIMIT ?  [[\"id\", 7], [\"LIMIT\", 1]]\r\n=> \"famale\"<\/pre>\n
    \u6570\u5024\u3092\u53d6\u5f97\u3057\u305f\u3044\u5834\u5408\u306f\u4e0b\u8a18\u306e\u3088\u3046\u306b\u300c_value\u300d\u3092\u4ed8\u3051\u307e\u3059\u3002<\/p>\n
    >> User.find(7).gender_value\r\n  User Load (0.1ms)  SELECT \"users\".* FROM \"users\" WHERE \"users\".\"id\" = ? LIMIT ?  [[\"id\", 7], [\"LIMIT\", 1]]\r\n=> 1<\/pre>\n
    \u30c7\u30d5\u30a9\u30eb\u30c8\u5024<\/h4>\n
    \u4e0b\u8a18\u306e\u3088\u3046\u306bdefault\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002(\u4f8b\u3067\u8a00\u3048\u3070\u300cmale\u300d)<\/strong><\/span>\u3001Rails\u6a19\u6e96\u306eenum\u3067\u5b9f\u88c5\u3057\u3088\u3046\u3068\u3057\u305f\u3089\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u4e2d\u3067\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/p>\n
    class User < ApplicationRecord\r\n  extend Enumerize\r\n\r\n  enumerize :gender, in: { male: 0, famale: 1 },default: :male\r\nend\r\n<\/pre>\n
    i18n\u5bfe\u5fdc<\/h4>\n
    \u6a19\u6e96\u306eenum\u3067\u5bfe\u5fdc\u3057\u3088\u3046\u3068\u3057\u305f\u3089\u300cenum_help\u300d\u3092\u4f7f\u308f\u306a\u3044\u3068\u3044\u3051\u307e\u305b\u3093\u3002<\/p>\n
    config\/locales\/ja.yml<\/strong><\/p>\n
    ja:\r\n  enumerize:\r\n    user:\r\n      gender:\r\n        male: \u7537\r\n        famale:  \u5973<\/pre>\n
    \u7ffb\u8a33\u3055\u308c\u305f\u6587\u5b57\u3092\u53d6\u5f97\u3057\u305f\u3044\u5834\u5408\u306f\u4e0b\u8a18\u306e\u3088\u3046\u306b\u300c_text\u300d\u3092\u4ed8\u3051\u307e\u3059\u3002<\/p>\n
    >> User.find(2).gender_text\r\n  User Load (0.4ms)  SELECT \"users\".* FROM \"users\" WHERE \"users\".\"id\" = ? LIMIT ?  [[\"id\", 2], [\"LIMIT\", 1]]\r\n=> \"\u7537\"<\/pre>\n","protected":false},"excerpt":{"rendered":"Enum\u3068\u306f\uff1f Rails4.1\u304b\u3089\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u300cActiveRecord::Enum\u300d\u3068\u3044\u3046\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u3053\u3068\u3067\u3059\u3002 \u5b9f\u88c5\u65b9\u6cd5 \u5bfe\u8c61\u30ab\u30e9\u30e0 integer\u578b\u306e\u30ab\u30e9\u30e0\u304c\u5bfe\u8c61\u306b\u306a\u308a\u307e\u3059\u3002 \u30e2\u30c7\u30eb\u30af\u30e9\u30b9 \u4e0b\u8a18\u306e\u3088\u3046\u306b\u5bfe\u8c61 […]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[36],"tags":[],"_links":{"self":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/12216"}],"collection":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=12216"}],"version-history":[{"count":12,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/12216\/revisions"}],"predecessor-version":[{"id":20503,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/12216\/revisions\/20503"}],"wp:attachment":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12216"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12216"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12216"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}