{"id":4095,"date":"2016-05-27T10:00:00","date_gmt":"2016-05-27T01:00:00","guid":{"rendered":"http:\/\/inter-arteq.com\/?p=4095"},"modified":"2022-03-05T14:29:37","modified_gmt":"2022-03-05T05:29:37","slug":"use_enum_for_enumerate_values_on_rails","status":"publish","type":"post","link":"http:\/\/cms.inter-arteq.com\/use_enum_for_enumerate_values_on_rails\/","title":{"rendered":"[Rails] \u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u8868\u3059\u5024\u306fEnum\u3092\u4f7f\u304a\u3046\u3010\u521d\u5fc3\u8005\u5411\u3051\u3011"},"content":{"rendered":"\n<p>\u30b7\u30b9\u30c6\u30e0\u3092\u69cb\u7bc9\u3057\u3066\u308b\u3068\u3001\u5e7e\u3064\u304b\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u6301\u3064\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u5546\u54c1\u306b\u3064\u3044\u3066\u306e\u30e2\u30c7\u30eb<code>Product<\/code>\u306e<code>status<\/code>\u3068\u3057\u3066\u3001\u300c\u767a\u58f2\u4e88\u5b9a\u300d\u300c\u767a\u58f2\u4e2d\u300d\u300c\u7d76\u7248\u300d\u300c\u518d\u8ca9\u672a\u5b9a\u300d\u306e4\u3064\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u6301\u3063\u3066\u3044\u308b\u3068\u3057\u307e\u3059\u3002<br>\n\u3053\u308c\u3089\u3092\u6271\u3046Model\u306e\u826f\u3044\u66f8\u304d\u65b9\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_69_1 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\">\u76ee\u6b21<\/p>\n<\/div><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"http:\/\/cms.inter-arteq.com\/use_enum_for_enumerate_values_on_rails\/#%E3%82%B9%E3%83%86%E3%83%BC%E3%82%BF%E3%82%B9%E3%82%92%E6%95%B0%E5%80%A4%E3%82%92%E4%BD%BF%E3%81%A3%E3%81%A6%E8%A1%A8%E7%8F%BE%E3%81%97%E3%81%9F%E6%99%82%E3%81%AE%E5%95%8F%E9%A1%8C%E7%82%B9\" title=\"\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u6570\u5024\u3092\u4f7f\u3063\u3066\u8868\u73fe\u3057\u305f\u6642\u306e\u554f\u984c\u70b9\">\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u6570\u5024\u3092\u4f7f\u3063\u3066\u8868\u73fe\u3057\u305f\u6642\u306e\u554f\u984c\u70b9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"http:\/\/cms.inter-arteq.com\/use_enum_for_enumerate_values_on_rails\/#Enum%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9\" title=\"Enum\u306e\u4f7f\u3044\u65b9\">Enum\u306e\u4f7f\u3044\u65b9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"http:\/\/cms.inter-arteq.com\/use_enum_for_enumerate_values_on_rails\/#%E8%A3%9C%E9%81%BA\" title=\"\u88dc\u907a\">\u88dc\u907a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"http:\/\/cms.inter-arteq.com\/use_enum_for_enumerate_values_on_rails\/#%E3%81%BE%E3%81%A8%E3%82%81\" title=\"\u307e\u3068\u3081\">\u307e\u3068\u3081<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%82%B9%E3%83%86%E3%83%BC%E3%82%BF%E3%82%B9%E3%82%92%E6%95%B0%E5%80%A4%E3%82%92%E4%BD%BF%E3%81%A3%E3%81%A6%E8%A1%A8%E7%8F%BE%E3%81%97%E3%81%9F%E6%99%82%E3%81%AE%E5%95%8F%E9%A1%8C%E7%82%B9\"><\/span>\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u6570\u5024\u3092\u4f7f\u3063\u3066\u8868\u73fe\u3057\u305f\u6642\u306e\u554f\u984c\u70b9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u305d\u308c\u305e\u308c\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u309210, 20, 30, 40\u3068\u3044\u3046\u6570\u5024\u3067\u7ba1\u7406\u3057\u3088\u3046\u3068\u601d\u3044\u307e\u3059\u3002<br>\u305d\u306e\u3068\u304d\u5358\u306binteger\u578b\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u3059\u308b\u3068\u3001\u4f8b\u3048\u3070\u3001\u767a\u58f2\u4e2d\u306b\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u30d5\u30a9\u30fc\u30e0\u306f<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-erb\" data-lang=\"ERB\"><code>&lt;%= form_for @product do |f| %&gt;\n  &lt;%= f.label :status %&gt;\n  &lt;%= f.radio_button :status, 10 %&gt; \u767a\u58f2\u4e88\u5b9a\n  &lt;%= f.radio_button :status, 20 %&gt; \u767a\u58f2\u4e2d\n  &lt;%= f.radio_button :status, 30 %&gt; \u7d76\u7248\n  &lt;%= f.radio_button :status, 40 %&gt; \u518d\u8ca9\u672a\u5b9a\n&lt;% end %&gt;<\/code><\/pre><\/div>\n\n\n\n<p>\u3068\u306a\u3063\u305f\u308a\u3001<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-ruby\" data-file=\" app\/models\/product.rb\" data-lang=\"Ruby\"><code>def in_sale?\n  self.status == 20\nend<\/code><\/pre><\/div>\n\n\n\n<p>\u3068\u306a\u308b\u306a\u3069\u3001\u3053\u3053\u3060\u3051\u3067\u306f\u610f\u5473\u304c\u5206\u304b\u3089\u306a\u3044\u6570\u5024\u304c\u5165\u3063\u3066\u53ef\u8aad\u6027\u304c\u60aa\u304f\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<br>\u305d\u308c\u3092\u9632\u3050\u305f\u3081\u306e\u6a5f\u80fd\u3068\u3057\u3066Rails\u306eModel\u306b\u306fEnum\u3068\u3044\u3046\u6a5f\u80fd\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Enum%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9\"><\/span>Enum\u306e\u4f7f\u3044\u65b9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Model\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-ruby\" data-file=\"app\/models\/product.rb\" data-lang=\"Ruby\"><code>class Product &lt; ActiveRecord::Base\n  enum status: {will_be_released: 10 ,in_sale: 20, sold_out: 30, resale_undecided: 40}\nend<\/code><\/pre><\/div>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u5b9a\u7fa9\u3057\u3066\u3084\u308b\u3068\u3001DB\u306e\u5024\u306f10,20,30,40\u306e\u307e\u307e\u3067\u3001\u30b3\u30fc\u30c9\u5185\u3067\u306f<code>:will_be_released<\/code>\u306a\u3069\u3067\u53c2\u7167\u3067\u304d\u307e\u3059\u3002<br>\u305f\u3068\u3048\u3070\u3001\u5148\u307b\u3069\u306eView\u306e\u30b3\u30fc\u30c9\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-erb\" data-lang=\"ERB\"><code>&lt;%= form_for @product do |f| %&gt;\n  &lt;%= f.label :status %&gt;\n  &lt;%= f.radio_button :status, :will_be_released %&gt; \u767a\u58f2\u4e88\u5b9a\n  &lt;%= f.radio_button :status, :in_sale %&gt; \u767a\u58f2\u4e2d\n  &lt;%= f.radio_button :status, :sold_out %&gt; \u7d76\u7248\n  &lt;%= f.radio_button :status, :resale_undecided %&gt; \u518d\u8ca9\u672a\u5b9a\n&lt;% end %&gt;<\/code><\/pre><\/div>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3057\u3066\u3084\u308c\u3070\u3001\u7121\u610f\u5473\u306a\u6570\u5024\u304c\u30b3\u30fc\u30c9\u306b\u5165\u3089\u306a\u3044\u306e\u3067\u3088\u307f\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<br>\u307e\u305f\u3001\u3075\u305f\u3064\u76ee\u306e<code>in_sale?<\/code>\u30e1\u30bd\u30c3\u30c9\u306b\u3064\u3044\u3066\u3067\u3059\u304c\u3001\u5b9f\u306feunm\u3092\u5b9a\u7fa9\u3057\u305f\u6642\u70b9\u3067\u81ea\u52d5\u7684\u306b\u4f5c\u6210\u3055\u308c\u307e\u3059\u3002\u540c\u69d8\u306b<code>status<\/code>\u3092<code>:in_sale<\/code>\u306b\u66f4\u65b0\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3068\u3057\u3066<code>in_sale!<\/code>\u3082\u4f5c\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002<br>\u307e\u305f\u3001<code>:will_be_released<\/code>, <code>:in_sale<\/code>, <code>:sold_out<\/code>, <code>:resale_undecided<\/code>\u4ee5\u5916\u306e\u5024\u3092\u4ee3\u5165\u3059\u308b\u3068\u3001\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u305f\u3081\u3001DB\u81ea\u4f53\u306bConstraint\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3082\u4fdd\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%A3%9C%E9%81%BA\"><\/span>\u88dc\u907a<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u4eca\u56de\u3001\u305d\u308c\u305e\u308c\u306e\u5224\u5225\u7528\u306e\u6570\u5b57\u309210, 20, 30, 40\u3068\u3057\u307e\u3057\u305f\u304c\u3001\u3053\u306e\u3088\u3046\u306b10\u98db\u3073\u306b\u3001\u3042\u308b\u3044\u306f100\u98db\u3073\u306b\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u9593\u306b\u65b0\u3057\u3044\u30b9\u30c6\u30fc\u30bf\u30b9\u304c\u3067\u304d\u305f\u3068\u304d\u300115\u306e\u3088\u3046\u306b\u9593\u306b\u5024\u3092\u6570\u5024\u5165\u308c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305f\u3060\u306eID\u3068\u3057\u3066\u306e\u5f79\u5272\u3057\u304b\u679c\u305f\u3057\u3066\u3044\u306a\u3044\u306e\u3067\u3001\u3082\u3061\u308d\u3093\u3001\u5f8c\u308d\u306b50\u3068\u304a\u3044\u3066\u3082\u3044\u3044\u306e\u3067\u3059\u304c\u3001\u306a\u3093\u3068\u306a\u304f\u6c17\u6301\u3061\u60aa\u3055\u304c\u3042\u308b\u306e\u3067\u3001\u81ea\u5206\u306f\u3044\u3064\u3082\u3053\u306e\u3088\u3046\u306b\u7f6e\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%81%BE%E3%81%A8%E3%82%81\"><\/span>\u307e\u3068\u3081<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Model\u306eEnum\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u5f97\u3089\u308c\u308b\u4e3b\u306a\u30e1\u30ea\u30c3\u30c8\u306f\u53ef\u8aad\u6027\u306e\u5de5\u5834\u3067\u3059\u304c\u3001\u69d8\u3005\u306a\u4fbf\u5229\u306a\u30e1\u30bd\u30c3\u30c9\u304c\u7528\u610f\u3055\u308c\u305f\u308a\u3001DB\u306e\u8a2d\u5b9a\u3092\u5909\u66f4\u3057\u306a\u304f\u3066\u3082\u4fdd\u5b58\u53ef\u80fd\u306a\u5024\u3092\u5897\u3084\u305b\u305f\u308a\u3057\u307e\u3059\u3002<br>\n\u307e\u305f\u3001<code>enum_help<\/code>\u3068\u3044\u3046Gem\u3092\u4ee3\u5165\u3059\u308b\u3053\u3068\u3067\u591a\u8a00\u8a9e\u5bfe\u5fdc\u3082\u53ef\u80fd\u3067\u3059\u3002<br>\n\u3053\u306e\u3088\u3046\u306a\u4fdd\u5b58\u3059\u308b\u5024\u304c\u6c7a\u307e\u3063\u3066\u3044\u308b\u3082\u306e\u306b\u95a2\u3057\u3066\u306f\u7a4d\u6975\u7684\u306bEnum\u3092\u4f5c\u3063\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30b7\u30b9\u30c6\u30e0\u3092\u69cb\u7bc9\u3057\u3066\u308b\u3068\u3001\u5e7e\u3064\u304b\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u6301\u3064\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u5546\u54c1\u306b\u3064\u3044\u3066\u306e\u30e2\u30c7\u30ebProduct\u306estatus\u3068\u3057\u3066\u3001\u300c\u767a\u58f2\u4e88\u5b9a\u300d\u300c\u767a\u58f2\u4e2d\u300d\u300c\u7d76\u7248\u300d\u300c\u518d\u8ca9\u672a\u5b9a\u300d\u306e4\u3064\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u6301\u3063\u3066\u3044\u308b\u3068\u3057\u307e\u3059\u3002 \u3053\u308c\u3089\u3092 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":208339,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[5,53],"tags":[141,46,142,140,50],"class_list":["post-4095","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-program","category-ruby","tag-enum","tag-for-beginner","tag-model","tag-rails","tag-ruby"],"aioseo_notices":[],"jetpack_featured_media_url":"http:\/\/cms.inter-arteq.com\/wp-content\/uploads\/2022\/03\/use_enum_for_enumerate_values_on_rails.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/cms.inter-arteq.com\/wp-json\/wp\/v2\/posts\/4095"}],"collection":[{"href":"http:\/\/cms.inter-arteq.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/cms.inter-arteq.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/cms.inter-arteq.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/cms.inter-arteq.com\/wp-json\/wp\/v2\/comments?post=4095"}],"version-history":[{"count":8,"href":"http:\/\/cms.inter-arteq.com\/wp-json\/wp\/v2\/posts\/4095\/revisions"}],"predecessor-version":[{"id":208376,"href":"http:\/\/cms.inter-arteq.com\/wp-json\/wp\/v2\/posts\/4095\/revisions\/208376"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/cms.inter-arteq.com\/wp-json\/wp\/v2\/media\/208339"}],"wp:attachment":[{"href":"http:\/\/cms.inter-arteq.com\/wp-json\/wp\/v2\/media?parent=4095"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/cms.inter-arteq.com\/wp-json\/wp\/v2\/categories?post=4095"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/cms.inter-arteq.com\/wp-json\/wp\/v2\/tags?post=4095"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}