{"id":819,"date":"2021-08-24T14:13:06","date_gmt":"2021-08-24T05:13:06","guid":{"rendered":"https:\/\/weseek.co.jp\/tech\/?p=819"},"modified":"2023-04-17T11:34:03","modified_gmt":"2023-04-17T02:34:03","slug":"ralis-%e3%81%ab%e6%a9%9f%e8%83%bd%e3%83%95%e3%83%a9%e3%82%b0feature-flag%e3%82%92%e8%bf%bd%e5%8a%a0%e3%81%97%e3%81%a6%e5%90%84%e3%83%95%e3%83%a9%e3%82%b0%e3%82%92%e5%88%b6%e5%be%a1%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/weseek.co.jp\/tech\/819\/","title":{"rendered":"Ralis\u3078\u6a5f\u80fd\u30d5\u30e9\u30b0(Feature Flag)\u3092\u8ffd\u52a0\u3057\u5404\u30d5\u30e9\u30b0\u3092\u5236\u5fa1\u3059\u308b"},"content":{"rendered":"<p>\u3053\u306e\u6295\u7a3f\u306f\u3001\u5f0a\u793e\u304c\u63d0\u4f9b\u3059\u308b<b>WESEEK TECH\u901a\u4fe1<\/b>\u306e\u4e00\u74b0\u3067\u3059\u3002<br \/>\nWESEEK TECH\u901a\u4fe1\u3068\u306f\u3001WESEEK\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u30ad\u30e3\u30c3\u30c1\u30a2\u30c3\u30d7\u3057\u305f\u6280\u8853\u306b\u95a2\u3059\u308b\u60c5\u5831\u3092\u3001tech\u30d6\u30ed\u30b0\u3092\u901a\u3058\u3066\u5b9a\u671f\u7684\u306b\u767a\u4fe1\u3057\u3066\u3044\u304f\u3082\u306e\u3067\u3059\u3002<\/p>\n\n<h2>\u306f\u3058\u3081\u306b<\/h2>\n<p>\u4eca\u56de\u306e\u8a18\u4e8b\u3067\u306f Feature Flag \u3068\u306f\u4f55\u306a\u306e\u304b\u3001\u305d\u308c\u3092\u5229\u7528\u3059\u308b\u30e1\u30ea\u30c3\u30c8\u3001\u4f7f\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<br \/>\n\u305d\u3057\u3066\u3053\u306e Feature Flag \u3092\u6271\u3046\u305f\u3081\u306b\u3001<a href=\"https:\/\/github.com\/pboling\/flag_shih_tzu\">FlagShifTzu<\/a> \u3068\u3044\u3046 gem \u3092\u7528\u3044\u3066\u5b9f\u969b\u306b\u52d5\u304b\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n<p><!--more--><\/p>\n<h2>Feature Flag \u3068\u306f<\/h2>\n<p>Feature Flag \u3068\u306f\u30011\u3064\u306e\u30ab\u30e9\u30e0\u3067\u8907\u6570\u306e\u30d5\u30e9\u30b0\u3092\u5236\u5fa1\u3059\u308b\u6a5f\u80fd\u3067\u3059\u3002<br \/>\n\u901a\u5e38\u3001\u30d5\u30e9\u30b0\u3068\u3057\u3066\u6271\u3046\u30ab\u30e9\u30e0\u306b\u306f boolean \u578b\u3092\u8a2d\u5b9a\u3057\u3001\u4e2d\u8eab\u306b true, false \u3092\u4fdd\u5b58\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u30d5\u30e9\u30b0\u306e on, off \u3092\u5207\u308a\u66ff\u3048\u307e\u3059\u3002<br \/>\n\u306a\u306e\u3067\u3001\u8907\u6570\u306e boolean \u5024\u3001\u3064\u307e\u308a\u8907\u6570\u306e\u30d5\u30e9\u30b0\u3092\u4fdd\u5b58\u3059\u308b\u5834\u5408\u306f\u305d\u306e\u6570\u5206\u306e\u30ab\u30e9\u30e0\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\n\u3057\u304b\u3057\u3053\u306e Feature Flag \u3092\u7528\u3044\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u30011\u3064\u306e\u30ab\u30e9\u30e0\u306b\u64ec\u4f3c\u7684\u306b\u8907\u6570\u306e\u30d5\u30e9\u30b0\u3092\u4fdd\u5b58\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>Feature Flag \u306e\u539f\u7406<\/h2>\n<p>\u3069\u3046\u3044\u3046\u539f\u7406\u3067\u8907\u6570\u306e boolean \u5024\u3092\u7ba1\u7406\u3059\u308b\u306e\u304b\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<br \/>\n\u8907\u6570\u306e\u30d5\u30e9\u30b0\u3092\u7ba1\u7406\u3059\u308b\u30ab\u30e9\u30e0\u3092 integer \u578b\u3067\u4f5c\u6210\u3057\u307e\u3059\u3002<br \/>\n\u3053\u306e\u30ab\u30e9\u30e0\u306e\u6570\u5024\u306b\u3088\u3063\u3066\u3069\u306e\u9805\u76ee\u304c true, false \u3067\u3042\u308b\u304b\u304c\u6c7a\u307e\u308a\u307e\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306f User \u30e2\u30c7\u30eb\u3092\u7528\u610f\u3057\u3001\u305d\u3053\u306b flags \u30ab\u30e9\u30e0\u3092\u7528\u610f\u3057\u307e\u3059\u3002<br \/>\n\u305d\u3057\u3066 flags \u30ab\u30e9\u30e0\u306b\u306f\u3001\u4f8b\u3068\u3057\u3066IT\u7cfb\u306e\u5404\u8cc7\u683c\u306e\u4fdd\u6709\u6709\u7121\u3092\u4fdd\u5b58\u3059\u308b\u3053\u3068\u306b\u3057\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u305e\u308c\u306e\u8cc7\u683c\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u6570\u5b57\u3067\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>1 \u30fb\u30fb\u30fb network_specialist(\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u30da\u30b7\u30e3\u30ea\u30b9\u30c8)<\/li>\n<li>2 \u30fb\u30fb\u30fb database_specialist(\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30da\u30b7\u30e3\u30ea\u30b9\u30c8)<\/li>\n<li>4 \u30fb\u30fb\u30fb system_architect(\u30b9\u30b7\u30c6\u30e0\u30a2\u30fc\u30ad\u30c6\u30af\u30c8)<\/li>\n<li>8 \u30fb\u30fb\u30fb project_manager(\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30de\u30cd\u30fc\u30b8\u30e3\u30fc)<\/li>\n<li>16 \u30fb\u30fb\u30fb it_strategist(IT\u30b9\u30c8\u30e9\u30c6\u30b8\u30b9\u30c8)<\/li>\n<li>32 \u30fb\u30fb\u30fb it_service_manager(IT\u30b5\u30fc\u30d3\u30b9\u30de\u30cd\u30fc\u30b8\u30e3\u30fc)<\/li>\n<\/ul>\n<p>\u305d\u3057\u3066\u3001\u3053\u306e\u5b9a\u7fa9\u3057\u305f\u6570\u5b57\u3092\u8db3\u3057\u5408\u308f\u305b\u3066\u3044\u304f\u3053\u3068\u3067\u30e6\u30fc\u30b6\u30fc\u304c\u3069\u306e\u8cc7\u683c\u3092\u6301\u3063\u3066\u3044\u308b\u306e\u304b\u3092\u8868\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u4f8b1 \u30e6\u30fc\u30b6\u30fcA\u304c\u8cc7\u683c\u30921\u3064\u3082\u6301\u3063\u3066\u3044\u306a\u3044\u5834\u5408\u3001flags \u306e\u5024\u306f 0 \u306b\u306a\u308b<\/li>\n<li>\u4f8b2 \u30e6\u30fc\u30b6\u30fcB\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u30da\u30b7\u30e3\u30ea\u30b9\u30c8\u3068\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30da\u30b7\u30e3\u30ea\u30b9\u30c8\u3092\u6301\u3063\u3066\u3044\u308b\u5834\u5408\u3001 flags \u306e\u5024\u306f 1 + 2 \u3067 3 \u306b\u306a\u308b<\/li>\n<li>\u4f8b3 \u30e6\u30fc\u30b6\u30fcC\u304c\u5168\u3066\u306e\u8cc7\u683c\u3092\u6301\u3063\u3066\u3044\u308b\u5834\u5408\u3001flags \u306e\u5024\u306f 1 + 2 + 4 + 8 + 16 + 32 \u3067 63 \u306b\u306a\u308b<\/li>\n<\/ul>\n<p>\u3053\u308c\u306b\u3088\u308a\u3001\u6c7a\u3081\u3089\u308c\u305f\u6570\u5b57\u3092\u4fdd\u5b58\u3059\u308b\u3053\u3068\u3067\u30011\u3064\u306e\u30ab\u30e9\u30e0\u306b\u64ec\u4f3c\u7684\u306b\u8907\u6570\u306e boolean \u5024\u3092\u4fdd\u5b58\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>Feature Flag \u3092\u7528\u3044\u308b\u30e1\u30ea\u30c3\u30c8<\/h2>\n<p>1\u3064\u76ee\u306e\u30e1\u30ea\u30c3\u30c8\u306f\u3001\u672c\u6765\u8907\u6570\u5fc5\u8981\u3060\u3063\u305f\u30ab\u30e9\u30e0\u30921\u3064\u306e\u30ab\u30e9\u30e0\u3067\u7ba1\u7406\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u305f\u3081\u3001\u30d5\u30a1\u30a4\u30eb\u304c\u30b9\u30c3\u30ad\u30ea\u3057\u307e\u3059\u3002<\/p>\n<p>2\u3064\u76ee\u306f\u3001\u6271\u3046\u9805\u76ee\u306e\u5909\u66f4\u3001\u5897\u6e1b\u304c\u7c21\u5358\u306b\u3067\u304d\u307e\u3059\u3002<br \/>\nRails \u3067\u306f\u30ab\u30e9\u30e0\u3092\u8ffd\u52a0\u3059\u308b\u305f\u3073\u306b\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3057\u3066\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u9069\u7528\u3055\u305b\u308b\u3068\u3044\u3046\u4f5c\u696d\u3092\u884c\u3044\u307e\u3059\u3002<br \/>\nFeature Flag \u3092\u7528\u3044\u308b\u5834\u5408\u306f\u3001\u30e2\u30c7\u30eb\u30d5\u30a1\u30a4\u30eb\u306b\u8a18\u8ff0\u3059\u308b\u8a2d\u5b9a\u3092\u66f8\u304d\u63db\u3048\u308b\u3060\u3051\u3067\u5909\u66f4\u3001\u5897\u6e1b\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\nboolean \u578b\u306e\u30ab\u30e9\u30e0\u304c\u983b\u7e41\u306b\u8ffd\u52a0\u3055\u308c\u308b\u3088\u3046\u306a\u5834\u5408\u3067\u3042\u308c\u3070\u3001\u3053\u306e\u3088\u3046\u306b Feature Flag \u3092\u7528\u3044\u305f\u65b9\u304c\u697d\u306b\u958b\u767a\u3092\u884c\u3048\u307e\u3059\u3002<\/p>\n<p>\u8907\u6570\u306e\u30d5\u30e9\u30b0\u30921\u3064\u306e\u30ab\u30e9\u30e0\u306b\u4fdd\u5b58\u3059\u308b\u65b9\u6cd5\u306f\u3001Feature Flag \u3092\u7528\u3044\u308b\u4ed6\u306b\u3001\u914d\u5217\u3084\u30cf\u30c3\u30b7\u30e5\u3092\u7528\u3044\u308b\u3068\u3044\u3046\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<br \/>\n\u3057\u304b\u3057\u5f8c\u8ff0\u306e gem \u3092\u7528\u3044\u308b\u3053\u3068\u3067\u3001\u914d\u5217\u3084\u30cf\u30c3\u30b7\u30e5\u3092\u7528\u3044\u308b\u3088\u308a\u3082\u697d\u306b\u30d5\u30e9\u30b0\u3092\u7ba1\u7406\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>FlagShifTzu \u3092\u5b9f\u969b\u306b\u52d5\u304b\u3057\u3066\u307f\u308b<\/h2>\n<p>Feature Flag \u3092\u5b9f\u88c5\u3067\u304d\u308b gem \u306f\u3001\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><a href=\"https:\/\/github.com\/kenn\/active_flag\">ActiveFlag<\/a><\/li>\n<li><a href=\"https:\/\/github.com\/jnunemaker\/flipper\">Flipper<\/a><\/li>\n<li><a href=\"https:\/\/github.com\/pboling\/flag_shih_tzu\">FlagShifTzu<\/a><\/li>\n<\/ul>\n<p>\u4e0a2\u3064\u306e ActiveFlag, Flipper \u306b\u95a2\u3057\u3066\u306f\u65e5\u672c\u8a9e\u3067\u89e3\u8aac\u3055\u308c\u3066\u3044\u308b\u8a18\u4e8b\u304c\u3042\u3063\u305f\u306e\u3067\u3001\u6c17\u306b\u306a\u308b\u65b9\u306f\u305d\u3061\u3089\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li>ActiveFlag \u306e\u8a18\u4e8b(<a href=\"https:\/\/tech.actindi.net\/2019\/05\/13\/091143\">Active Flag\u3067\u52b9\u7387\u7684\u306b\u30d5\u30e9\u30b0\u3092\u5b9f\u88c5\u3059\u308b<\/a>)<\/li>\n<li>Flipper(<a href=\"https:\/\/qiita.com\/benzou\/items\/0f2040615b9a1184cc6a\">\u3010Rails\u3011Flipper\u3067Feature Flag\u3092\u5c0e\u5165<\/a>)<\/li>\n<\/ul>\n<p>\u4eca\u56de\u306f FlagShifTzu \u3092\u7528\u3044\u3066 Feature Flag \u3092\u52d5\u304b\u3057\u3066\u307f\u307e\u3059\u3002<br \/>\n\u5148\u307b\u3069\u306e\u300cFeature Flag \u306e\u539f\u7406\u300d\u3067\u89e3\u8aac\u3057\u305f\u3088\u3046\u306b User \u30e2\u30c7\u30eb\u306b flags \u30ab\u30e9\u30e0\u3092\u8ffd\u52a0\u3057\u3066\u3001\u8cc7\u683c\u306e\u4fdd\u6709\u6709\u7121\u3092\u7ba1\u7406\u3067\u304d\u308b\u3053\u3068\u3092\u76ee\u6307\u3057\u307e\u3059\u3002<\/p>\n<p>\u307e\u305a\u521d\u3081\u306b gem \u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3092\u884c\u3044\u307e\u3059\u3002<br \/>\nGemfile \u306b flag_shif_tzu \u3092\u66f8\u304d\u8fbc\u3093\u3067 bundle install \u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n<pre><code>gem &#039;flag_shih_tzu&#039;<\/code><\/pre>\n<pre><code>$ bundle install<\/code><\/pre>\n<p>\u305d\u3057\u3066 User \u30e2\u30c7\u30eb\u306b flags \u30ab\u30e9\u30e0\u3092\u8ffd\u52a0\u3059\u308b\u305f\u3081\u306b\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\u3092\u7528\u610f\u3057\u307e\u3059\u3002<\/p>\n<pre><code>$ bin\/rails generate migration AddFlagsToUser<\/code><\/pre>\n<p>\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\u306b\u4ee5\u4e0b\u306e\u8a18\u8ff0\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<br \/>\n\u3053\u306e\u3068\u304d\u3001null false \u306b\u3057\u3066\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u306f 0 \u306b\u3057\u307e\u3059\u3002<\/p>\n<pre><code>class AddFlagsToUser &lt; ActiveRecord::Migration[6.0]\n  def change\n    add_column :users, :flags, :integer, default: 0, null: false\n  end\nend<\/code><\/pre>\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u53cd\u6620\u3055\u305b\u307e\u3059\u3002<\/p>\n<pre><code>$ bin\/rails db:migrate<\/code><\/pre>\n<p>\u3053\u308c\u3067 User \u30e2\u30c7\u30eb\u306b flags \u30ab\u30e9\u30e0\u304c\u8ffd\u52a0\u3055\u308c\u307e\u3057\u305f\u3002<br \/>\n\u6b21\u306b flag_shif_tzu \u306e\u8a2d\u5b9a\u3092\u884c\u3044\u307e\u3059\u3002user.rb \u306b\u4ee5\u4e0b\u306e\u8a18\u8ff0\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n<pre><code>class User &lt; ApplicationRecord\n  include FlagShihTzu\n\n  has_flags(\n    1 =&gt; :network_specialist,\n    2 =&gt; :database_specialist,\n    3 =&gt; :system_architect,\n    4 =&gt; :project_manager,\n    5 =&gt; :it_strategist,\n    6 =&gt; :it_service_manager\n  )\nend<\/code><\/pre>\n<p>\u3053\u308c\u306b\u3066\u8a2d\u5b9a\u306f\u5b8c\u4e86\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a network_specialist, database_specialist \u306a\u3069\u306e\u30e1\u30bd\u30c3\u30c9\u304c\u81ea\u52d5\u7684\u306b\u8ffd\u52a0\u3055\u308c\u6271\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\n\u8ffd\u52a0\u3055\u308c\u305f\u30e1\u30bd\u30c3\u30c9\u3092\u30ab\u30e9\u30e0\u306e\u3088\u3046\u306b\u6271\u3046\u3053\u3068\u3067\u30d5\u30e9\u30b0\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3061\u306a\u307f\u306b has_flags \u5185\u306b <code>:column =&gt; &#039;\u30ab\u30e9\u30e0\u540d&#039;<\/code> \u3068\u3044\u3046\u8a18\u8ff0\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3067\u3001flags \u4ee5\u5916\u306e\u30ab\u30e9\u30e0\u540d\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306f\u30b3\u30f3\u30bd\u30fc\u30eb\u4e0a\u3067 User \u30e2\u30c7\u30eb\u3092\u3044\u3058\u308b\u306e\u3067 rails console \u3067\u30b3\u30f3\u30bd\u30fc\u30eb\u3092\u8d77\u52d5\u3057\u307e\u3059\u3002<\/p>\n<pre><code>$ bin\/rails rails c<\/code><\/pre>\n<p>\u8a66\u3057\u306b network_specialist \u306e\u307f\u304c true \u306e User \u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n<pre><code>$ User.create(name: &#039;admin&#039;, email: &#039;admin@example.com&#039;, network_specialist: true)\n=&gt; #&lt;User:0x00007f0330d00000 id: 1, name: &quot;admin&quot;, email: &quot;admin@example.com&quot;, flags: 1&gt;\n$ User.find(1).flags\n=&gt; 1\n$ User.find(1).network_specialist\n=&gt; true\n$ User.find(1).database_specialist\n=&gt; false<\/code><\/pre>\n<p>network_specialist \u306e\u307f true \u306b\u306a\u3063\u3066\u304a\u308a\u3001flags \u306e\u5024\u304c\u5185\u5bb9\u306b\u3088\u3063\u3066\u81ea\u52d5\u3067\u5909\u66f4\u3055\u308c\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n<p>update \u3082\u5f53\u7136\u51fa\u6765\u307e\u3059\u3002<\/p>\n<pre><code>$ User.find(1).update(project_manager: true, it_service_manager: true)\n$ User.find(1).flags\n=&gt; 41<\/code><\/pre>\n<p>flags \u306e\u5024\u306f 1 + 8 + 32 \u3067\u81ea\u52d5\u3067\u300041 \u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001all_flags \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u3053\u3068\u3067\u5236\u5fa1\u53ef\u80fd\u306a\u5168\u3066\u306e\u30d5\u30e9\u30b0\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001<br \/>\nselected_flags \u30e1\u30bd\u30c3\u30c9\u3067 true \u306b\u306a\u3063\u3066\u3044\u308b\u30d5\u30e9\u30b0\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\n(\u6ce8\u610f \uff1a FlagShifTzu \u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u3088\u3063\u3066\u306f\u30e1\u30bd\u30c3\u30c9\u540d\u304c all_features, selected_features \u306b\u306a\u3063\u3066\u3044\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093)<\/p>\n<pre><code>$ User.find(1).all_flags\n=&gt; [:network_specialist, :database_specialist, :system_architect, :project_manager, :it_strategist, :it_service_manager]\n$ User.find(1).selected_flags\n=&gt; [:network_specialist, :project_manager, :it_service_manager]<\/code><\/pre>\n<p>id 1 \u306e\u30e6\u30fc\u30b6\u30fc\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u30da\u30b7\u30e3\u30ea\u30b9\u30c8\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u3001IT\u30b5\u30fc\u30d3\u30b9\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u306e 3 \u3064\u306e\u8cc7\u683c\u3092\u6301\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u307e\u305f\u3001\u30e2\u30c7\u30eb\u306b\u5bfe\u3057\u3066\u30d5\u30e9\u30b0\u540d\u3092\u5b9f\u884c\u3055\u305b\u308b\u3053\u3068\u3067\u3001\u30d5\u30e9\u30b0\u304c true \u306b\u306a\u3063\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre><code>$ User.network_specialist\n=&gt; [\n  #&lt;User id: 1, user_name: &quot;admin&quot;, email: &quot;admin@example.com&quot;, flags: 41&gt;,\n  #&lt;User id: 2, user_name: &quot;test&quot;, email: &quot;test@example.com&quot;, flags: 1&gt;\n]\n$ User.network_specialist.count\n=&gt; 2<\/code><\/pre>\n<p>\u3082\u3057\u3053\u306e flags \u30ab\u30e9\u30e0\u3092\u914d\u5217\u3084\u30cf\u30c3\u30b7\u30e5\u3067\u7ba1\u7406\u3057\u3066\u3044\u305f\u5834\u5408\u306f\u3001\u4eca\u7d39\u4ecb\u3057\u305f\u3044\u304f\u3064\u304b\u306e\u64cd\u4f5c\u304c\u5c11\u3057\u304c\u9762\u5012\u306b\u306a\u308a\u307e\u3059\u304c\u3001gem \u3092\u7528\u3044\u3066 Feature Flag \u3092\u4f7f\u3046\u3053\u3068\u3067\u968f\u5206\u3068\u697d\u306b\u7ba1\u7406\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n<h2>\u304a\u307e\u3051<\/h2>\n<p>\u4f59\u8ac7\u3067\u3059\u304c\u3001\u3082\u3061\u308d\u3093\u305d\u308c\u305e\u308c\u306e\u30d5\u30e9\u30b0\u3092\u5909\u66f4\u3059\u308b\u306e\u3067\u306f\u306a\u304f flags \u306e\u6570\u5024\u3092\u76f4\u63a5\u5909\u66f4\u3059\u308b\u3053\u3068\u3067\u8907\u6570\u306e\u30d5\u30e9\u30b0\u3092\u4e00\u6c17\u306b\u5909\u66f4\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u3057\u304b\u3057\u81ea\u5206\u3067\u6570\u5024\u3092\u8a08\u7b97\u3057\u3066\u3042\u3052\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3061\u306a\u307f\u306b FlagShifTzu \u3067\u306f condition \u30e1\u30bd\u30c3\u30c9\u304c\u8ffd\u52a0\u3055\u308c\u3001\u4ee5\u4e0b\u306e\u4f8b\u3060\u3068 network_specialist \u304c true \u306b\u306a\u308b\u3088\u3046\u306a flags \u306e\u6570\u5b57\u3092\u5168\u3066\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre><code>$ User.network_specialist_condition\n=&gt; &quot;(\\&quot;users\\&quot;.\\&quot;flags\\&quot; in (1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,59,61,63))&quot;<\/code><\/pre>\n<p>\u305f\u3060 gem \u306e\u304a\u304b\u3052\u3067\u3001\u307e\u308b\u3067\u30ab\u30e9\u30e0\u304c\u8ffd\u52a0\u3055\u308c\u3066\u3044\u308b\u304b\u306e\u3088\u3046\u306b\u64cd\u4f5c\u3092\u884c\u3048\u308b\u305f\u3081\u3001\u666e\u901a\u306b\u4f7f\u3046\u5206\u306b\u306f flags \u306e\u5024\u3068\u3044\u3046\u306e\u306f\u6c17\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h2>\u6700\u5f8c\u306b<\/h2>\n<p>FlagShifTzu gem \u3092\u7528\u3044\u3066 Feature Flag \u3092\u5b9f\u969b\u306b\u52d5\u304b\u3057\u3066\u307f\u305f\u3068\u3053\u308d\u30011\u3064\u306e flags \u3068\u3044\u3046\u30ab\u30e9\u30e0\u3060\u3051\u3067\u3044\u304f\u3064\u3082\u306e\u30d5\u30e9\u30b0\u3092\u7ba1\u7406\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<br \/>\n\u591a\u304f\u306e\u30d5\u30e9\u30b0\u3092\u6271\u3046\u6642\u306b\u975e\u5e38\u306b\u4fbf\u5229\u306a\u306e\u3067\u3001\u6a5f\u4f1a\u304c\u3042\u308c\u3070\u662f\u975e\u4f7f\u7528\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u306e\u6295\u7a3f\u306f\u3001\u5f0a\u793e\u304c\u63d0\u4f9b\u3059\u308bWESEEK TECH\u901a\u4fe1\u306e\u4e00\u74b0\u3067\u3059\u3002 WESEEK TECH\u901a\u4fe1\u3068\u306f\u3001WESEEK\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u30ad\u30e3\u30c3\u30c1\u30a2\u30c3\u30d7\u3057\u305f\u6280\u8853\u306b\u95a2\u3059\u308b\u60c5\u5831\u3092\u3001tech\u30d6\u30ed\u30b0\u3092\u901a\u3058\u3066\u5b9a\u671f\u7684\u306b\u767a\u4fe1\u3057\u3066\u3044\u304f\u3082\u306e\u3067\u3059\u3002 \u306f\u3058<\/p>\n","protected":false},"author":4,"featured_media":828,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[154],"tags":[],"_links":{"self":[{"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/posts\/819"}],"collection":[{"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/comments?post=819"}],"version-history":[{"count":18,"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/posts\/819\/revisions"}],"predecessor-version":[{"id":4042,"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/posts\/819\/revisions\/4042"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/media\/828"}],"wp:attachment":[{"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/media?parent=819"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/categories?post=819"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/tags?post=819"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}