{"id":23639,"date":"2025-11-14T11:28:53","date_gmt":"2025-11-14T11:28:53","guid":{"rendered":"https:\/\/pokecon.jp\/job\/?p=23639"},"modified":"2025-11-14T11:28:53","modified_gmt":"2025-11-14T11:28:53","slug":"kaigionrails-2025-day1-%e5%85%a5%e9%96%80formobject%e3%81%ae%e8%a9%b1%e3%82%92%e8%81%9e%e3%81%84%e3%81%a6%e3%81%8d%e3%81%9f-techouse-developers-blog","status":"publish","type":"post","link":"https:\/\/pokecon.jp\/job\/23639\/","title":{"rendered":"KaigiOnRails-2025 day1 \u5165\u9580FormObject\u306e\u8a71\u3092\u805e\u3044\u3066\u304d\u305f &#8211; Techouse Developers Blog"},"content":{"rendered":"\n<\/p>\n<div>\n<p><img decoding=\"async\" src=\"http:\/\/res.cloudinary.com\/dyjw65doo\/image\/upload\/v1760948531\/KaigiOnRails-2025-day2-IntroductionFormObject\/ogp.png\" alt=\"ogp\"\/><\/p>\n<p>2025\u5e749\u670826\u65e5\u301c27\u65e5\u306b\u958b\u50ac\u3055\u308c\u305fKaigi on Rails 2025\u3078\u53c2\u52a0\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u4eca\u56de\u306fday1\u3067\u884c\u308f\u308c\u305f\u5c0f\u5ddd\u539f\u4fee\uff08<a target=\"_blank\" href=\"https:\/\/github.com\/expajp\">@expajp<\/a>\uff09\u3055\u3093\u306e\u300c\u5165\u9580FormObject\u300d\u306e\u767a\u8868\u3092\u805e\u3044\u3066\u304d\u305f\u306e\u3067\u3001\u5b66\u3093\u3060\u5185\u5bb9\u3092\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/p>\n<h2 id=\"\u30bb\u30c3\u30b7\u30e7\u30f3\u6982\u8981\">\u30bb\u30c3\u30b7\u30e7\u30f3\u6982\u8981<\/h2>\n<p>FormObject\u3063\u3066\u3088\u304f\u4f7f\u308f\u308c\u3066\u3044\u308b\u3051\u308c\u3069\u3001\u6982\u5ff5\u3084\u4f7f\u3044\u3069\u3053\u308d\u3092\u3046\u307e\u304f\u8aac\u660e\u3067\u304d\u308b\u4eba\u3063\u3066\u6848\u5916\u5c11\u306a\u3044\u3093\u3058\u3083\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>\u300c\u306a\u3093\u3068\u306a\u304f\u4f7f\u3063\u3066\u3044\u308b\u3051\u3069\u3001\u672c\u5f53\u306b\u3053\u3053\u3067\u4f7f\u3046\u3079\u304d\u306a\u306e\uff1f\u300d<br \/>\n\u300c\u4ed6\u306e\u4eba\u306b\u8aac\u660e\u3092\u6c42\u3081\u3089\u308c\u3066\u3082\u3001\u3046\u307e\u304f\u7b54\u3048\u3089\u308c\u306a\u3044\u3002\u300d<br \/>\n\u300cRails Way\u3068\u306e\u4f7f\u3044\u5206\u3051\u304c\u3088\u304f\u308f\u304b\u3089\u306a\u3044\u3002\u300d<\/p>\n<p>\u305d\u3093\u306a\u7d4c\u9a13\u3001\u3042\u308a\u307e\u305b\u3093\u304b\u3002<\/p>\n<p>FormObject\u306f\u78ba\u304b\u306b\u4fbf\u5229\u306a\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u304c\u3001\u305d\u306e\u4e00\u65b9\u3067\u300c\u3044\u3064\u4f7f\u3046\u3079\u304d\u304b\u300d\u300c\u306a\u305c\u5fc5\u8981\u306a\u306e\u304b\u300d\u3068\u3044\u3063\u305f\u6839\u672c\u7684\u306a\u90e8\u5206\u306e\u7406\u89e3\u304c\u96e3\u3057\u304f\u3001\u591a\u304f\u306e\u958b\u767a\u8005\u304c\u60a9\u3080\u30dd\u30a4\u30f3\u30c8\u3067\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u5c0f\u5ddd\u539f\u3055\u3093\u306e\u767a\u8868\u306f\u3001FormObject\u306e\u672c\u8cea\u7684\u306a\u7279\u5fb4\u304b\u3089\u5177\u4f53\u7684\u306a\u4f7f\u3044\u3069\u3053\u308d\u306e\u30d1\u30bf\u30fc\u30f3\u307e\u3067\u4f53\u7cfb\u7684\u306b\u89e3\u8aac\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u307e\u305f\u3001\u73fe\u5834\u306bFormObject\u304c\u6ea2\u308c\u3066\u3044\u308b\u7406\u7531\u306b\u3064\u3044\u3066\u3082\u521d\u7d1a\u8005\u306b\u3082\u5206\u304b\u308a\u3084\u3059\u304f\u8aac\u660e\u3055\u308c\u3066\u304a\u308a\u3001\u300cFormObject\u306b\u3064\u3044\u3066\u3082\u3063\u3068\u77e5\u308a\u305f\u3044\u300d\u3068\u601d\u3063\u3066\u3044\u305f\u65b9\u306b\u306f\u975e\u5e38\u306b\u53c2\u8003\u306b\u306a\u308b\u30bb\u30c3\u30b7\u30e7\u30f3\u3067\u3057\u305f\u3002<\/p>\n<p><iframe class=\"speakerdeck-iframe\" frameborder=\"0\" src=\"https:\/\/speakerdeck.com\/player\/a8da84605a1041ba994fdb936860727e\" title=\"\u5165\u9580 FormObject \/ An Introduction to FormObject #kaigionrails\" allowfullscreen=\"true\" style=\"border: 0px; background: padding-box padding-box rgba(0, 0, 0, 0.1); margin: 0px; padding: 0px; border-radius: 6px; box-shadow: rgba(0, 0, 0, 0.2) 0px 5px 40px; width: 100%; height: auto; aspect-ratio: 560 \/ 315;\"><\/iframe><\/p>\n<h2 id=\"FormObject\u3068\u306f\u4f55\u304b\">FormObject\u3068\u306f\u4f55\u304b<\/h2>\n<h3 id=\"\u306a\u305cFormObject\u304c\u5fc5\u8981\u306a\u306e\u304b\">\u306a\u305cFormObject\u304c\u5fc5\u8981\u306a\u306e\u304b\uff1f<\/h3>\n<p>FormObject\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u3001\u307e\u305a\u306f\u300c\u306a\u305c\u3053\u306e\u30d1\u30bf\u30fc\u30f3\u304c\u751f\u307e\u308c\u305f\u306e\u304b\u300d\u304b\u3089\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u901a\u5e38\u306eRails\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b7\u30f3\u30d7\u30eb\u306a\u69cb\u9020\u3067\u958b\u767a\u3092\u9032\u3081\u307e\u3059\uff1a<\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\">\n<span class=\"synPreProc\">class<\/span> <span class=\"synType\">User<\/span> ApplicationRecord\n  validates <span class=\"synConstant\">:email<\/span>, <span class=\"synConstant\">presence<\/span>: <span class=\"synConstant\">true<\/span>\n  validates <span class=\"synConstant\">:name<\/span>, <span class=\"synConstant\">presence<\/span>: <span class=\"synConstant\">true<\/span>\n<span class=\"synPreProc\">end<\/span>\n<\/pre>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\">\n<span class=\"synPreProc\">class<\/span> <span class=\"synType\">UsersController<\/span> ApplicationController\n  <span class=\"synPreProc\">def<\/span> <span class=\"synIdentifier\">create<\/span>\n    <span class=\"synIdentifier\">@user<\/span> = <span class=\"synType\">User<\/span>.new(user_params)\n    <span class=\"synStatement\">if<\/span> <span class=\"synIdentifier\">@user<\/span>.save\n      redirect_to users_path, <span class=\"synConstant\">notice<\/span>: <span class=\"synSpecial\">'<\/span><span class=\"synConstant\">\u30e6\u30fc\u30b6\u30fc\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f<\/span><span class=\"synSpecial\">'<\/span>\n    <span class=\"synStatement\">else<\/span>\n      render <span class=\"synConstant\">:new<\/span>\n    <span class=\"synStatement\">end<\/span>\n  <span class=\"synPreProc\">end<\/span>\n<span class=\"synPreProc\">end<\/span>\n<\/pre>\n<p>\u3053\u306e\u65b9\u6cd5\u306f\u3001\u30b7\u30f3\u30d7\u30eb\u306aCRUD\u64cd\u4f5c\u3067\u306f\u5b8c\u74a7\u306b\u6a5f\u80fd\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u5b9f\u969b\u306e\u958b\u767a\u3067\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5834\u9762\u306b\u906d\u9047\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n<p><strong>\u30b1\u30fc\u30b91: \u304a\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0<\/strong><\/p>\n<ul>\n<li>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u305b\u305a\u3001\u30e1\u30fc\u30eb\u9001\u4fe1\u3060\u3051\u3057\u305f\u3044<\/li>\n<li>\u3067\u3082\u3001\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3084\u30a8\u30e9\u30fc\u8868\u793a\u306f\u901a\u5e38\u306e\u30d5\u30a9\u30fc\u30e0\u3068\u540c\u3058\u3088\u3046\u306b\u4f7f\u3044\u305f\u3044<\/li>\n<\/ul>\n<p><strong>\u30b1\u30fc\u30b92: \u8907\u96d1\u306a\u767b\u9332\u30d5\u30a9\u30fc\u30e0<\/strong><\/p>\n<ul>\n<li>\u30e6\u30fc\u30b6\u30fc\u60c5\u5831\u3001\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u60c5\u5831\u3001\u8a2d\u5b9a\u60c5\u5831\u3092\u4e00\u5ea6\u306b\u767b\u9332\u3057\u305f\u3044<\/li>\n<li>\u8907\u6570\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u307e\u305f\u304c\u308b\u304c\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u306f1\u3064\u306e\u30d5\u30a9\u30fc\u30e0\u3068\u3057\u3066\u898b\u305b\u305f\u3044<\/li>\n<\/ul>\n<p><strong>\u30b1\u30fc\u30b93: \u6587\u8108\u306b\u5fdc\u3058\u305f\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3<\/strong><\/p>\n<ul>\n<li>\u65b0\u898f\u767b\u9332\u6642\u306f\u300c\u5229\u7528\u898f\u7d04\u3078\u306e\u540c\u610f\u300d\u304c\u5fc5\u9808<\/li>\n<li>\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u7de8\u96c6\u6642\u306f\u300c\u5229\u7528\u898f\u7d04\u3078\u306e\u540c\u610f\u300d\u306f\u4e0d\u8981<\/li>\n<li>\u540c\u3058User\u30e2\u30c7\u30eb\u3060\u304c\u3001\u5834\u9762\u306b\u3088\u3063\u3066\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u5909\u3048\u305f\u3044<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306e\u30b1\u30fc\u30b9\u3067\u306f\u3001\u901a\u5e38\u306eActiveRecord\u30e2\u30c7\u30eb\u3060\u3051\u3067\u306f\u5bfe\u5fdc\u304c\u56f0\u96e3\u3067\u3059\u3002\u305d\u3053\u3067\u767b\u5834\u3059\u308b\u306e\u304cFormObject\u3067\u3059\u3002<\/p>\n<h3 id=\"FormObject\u306e\u57fa\u672c\u7684\u306a\u8003\u3048\u65b9\">FormObject\u306e\u57fa\u672c\u7684\u306a\u8003\u3048\u65b9<\/h3>\n<p>FormObject\u306f\u3001<strong>\u300c\u30d5\u30a9\u30fc\u30e0\u306e\u8981\u4ef6\u306b\u7279\u5316\u3057\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u300d<\/strong>\u3067\u3059\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30c6\u30fc\u30d6\u30eb\u69cb\u9020\u306b\u7e1b\u3089\u308c\u308b\u3053\u3068\u306a\u304f\u3001\u30d5\u30a9\u30fc\u30e0\u304c\u5fc5\u8981\u3068\u3059\u308b\u6a5f\u80fd\u3060\u3051\u3092\u6301\u3063\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\">\n<span class=\"synPreProc\">class<\/span> <span class=\"synType\">ContactForm<\/span>\n  <span class=\"synPreProc\">include<\/span> <span class=\"synType\">ActiveModel<\/span>::<span class=\"synType\">Model<\/span>  \n  \n  <span class=\"synPreProc\">attr_accessor<\/span> <span class=\"synConstant\">:name<\/span>, <span class=\"synConstant\">:email<\/span>, <span class=\"synConstant\">:message<\/span>\n  validates <span class=\"synConstant\">:name<\/span>, <span class=\"synConstant\">:email<\/span>, <span class=\"synConstant\">:message<\/span>, <span class=\"synConstant\">presence<\/span>: <span class=\"synConstant\">true<\/span>\n  \n  <span class=\"synPreProc\">def<\/span> <span class=\"synIdentifier\">save<\/span>\n    <span class=\"synStatement\">return<\/span> <span class=\"synConstant\">false<\/span> <span class=\"synStatement\">if<\/span> invalid?\n    \n    <span class=\"synType\">ContactMailer<\/span>.send_message(name, email, message).deliver_later\n    <span class=\"synConstant\">true<\/span>\n  <span class=\"synPreProc\">end<\/span>\n<span class=\"synPreProc\">end<\/span>\n<\/pre>\n<p>\u3053\u306eFormObject\u3092\u4f7f\u3048\u3070\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u304b\u3089\u306f\u901a\u5e38\u306e\u30e2\u30c7\u30eb\u3068\u540c\u3058\u3088\u3046\u306b\u6271\u3048\u307e\u3059\uff1a<\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\"><span class=\"synPreProc\">def<\/span> <span class=\"synIdentifier\">create<\/span>\n  <span class=\"synIdentifier\">@form<\/span> = <span class=\"synType\">ContactForm<\/span>.new(contact_params)\n  <span class=\"synStatement\">if<\/span> <span class=\"synIdentifier\">@form<\/span>.save  \n    redirect_to root_path, <span class=\"synConstant\">notice<\/span>: <span class=\"synSpecial\">'<\/span><span class=\"synConstant\">\u304a\u554f\u3044\u5408\u308f\u305b\u3092\u9001\u4fe1\u3057\u307e\u3057\u305f<\/span><span class=\"synSpecial\">'<\/span>\n  <span class=\"synStatement\">else<\/span>\n    render <span class=\"synConstant\">:new<\/span>  \n  <span class=\"synStatement\">end<\/span>\n<span class=\"synPreProc\">end<\/span>\n<\/pre>\n<h3 id=\"FormObject\u306e4\u3064\u306e\u7279\u5fb4\">FormObject\u306e4\u3064\u306e\u7279\u5fb4<\/h3>\n<p>\u767a\u8868\u3067\u306f\u3001FormObject\u3092\u4ee5\u4e0b\u306e4\u3064\u306e\u7279\u5fb4\u3067\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3057\u305f\uff1a<\/p>\n<ol>\n<li><strong>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u7d10\u4ed8\u304b\u306a\u3044Ruby\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/strong><\/li>\n<li><strong>\u30e2\u30c7\u30eb\u3068\u540c\u3058\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\uff08\u4ee5\u4e0bI\/F\uff09\u3067\u3001\u4e3b\u306b\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u304b\u3089\u547c\u3070\u308c\u308b<\/strong><\/li>\n<li><strong>\u72ec\u81ea\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u51e6\u7406\u3092\u6301\u3066\u308b<\/strong><\/li>\n<li><strong>\u30d3\u30e5\u30fc\u306e\u72b6\u614b\u3092\u4fdd\u6301\u3067\u304d\u308b<\/strong><\/li>\n<\/ol>\n<p>\u203b\u300c\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u51e6\u7406\u300d\u3068\u306f\u3001\u767a\u8868\u8005\u306e\u5c0f\u5ddd\u539f\u3055\u3093\u304c\u4f7f\u7528\u3057\u3066\u3044\u305f\u547c\u79f0\u3067\u3001\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\uff08\u5165\u529b\u5024\u306e\u691c\u8a3c\uff09\u3084\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\uff08\u4fdd\u5b58\u524d\u5f8c\u306e\u51e6\u7406\uff09\u306a\u3069\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u751f\u6210\u304b\u3089\u4fdd\u5b58\u307e\u3067\u306e\u4e00\u9023\u306e\u51e6\u7406\u306e\u3053\u3068\u3092\u6307\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u305e\u308c\u306e\u7279\u5fb4\u306b\u3064\u3044\u3066\u3001\u5177\u4f53\u4f8b\u3068\u3068\u3082\u306b\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h4 id=\"1-\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u7d10\u4ed8\u304b\u306a\u3044Ruby\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\">1. \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u7d10\u4ed8\u304b\u306a\u3044Ruby\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/h4>\n<p>\u901a\u5e38\u306eActiveRecord\u30e2\u30c7\u30eb\u3068\u306f\u7570\u306a\u308a\u3001FormObject\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30c6\u30fc\u30d6\u30eb\u3068\u76f4\u63a5\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\">\n<span class=\"synPreProc\">class<\/span> <span class=\"synType\">User<\/span> ApplicationRecord  \n  validates <span class=\"synConstant\">:email<\/span>, <span class=\"synConstant\">presence<\/span>: <span class=\"synConstant\">true<\/span>\n<span class=\"synPreProc\">end<\/span>\n\n\n<span class=\"synPreProc\">class<\/span> <span class=\"synType\">UserNewForm<\/span>\n  <span class=\"synPreProc\">include<\/span> <span class=\"synType\">ActiveModel<\/span>::<span class=\"synType\">Model<\/span>  \n  \n  <span class=\"synPreProc\">attr_accessor<\/span> <span class=\"synConstant\">:email<\/span>, <span class=\"synConstant\">:name<\/span>  \n  validates <span class=\"synConstant\">:email<\/span>, <span class=\"synConstant\">:name<\/span>, <span class=\"synConstant\">presence<\/span>: <span class=\"synConstant\">true<\/span>\n<span class=\"synPreProc\">end<\/span>\n<\/pre>\n<p><strong>ActiveRecord\u3068ActiveModel\u306e\u9055\u3044<\/strong><\/p>\n<ul>\n<li>\n<p><strong>ActiveRecord<\/strong>: \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30c6\u30fc\u30d6\u30eb\u30681\u5bfe1\u3067\u5bfe\u5fdc\u3059\u308b\u30e2\u30c7\u30eb\u3002<code>save<\/code>\u3059\u308b\u3068\u81ea\u52d5\u7684\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u3055\u308c\u308b<\/p>\n<\/li>\n<li>\n<p><strong>ActiveModel<\/strong>: \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u7d10\u4ed8\u304b\u306a\u3044\u304c\u3001\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3084\u30e2\u30c7\u30eb\u3068\u540c\u69d8\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306a\u3069Rails\u306e\u30e2\u30c7\u30eb\u6a5f\u80fd\u3092\u4f7f\u3048\u308b\u3088\u3046\u306b\u3059\u308b\u30e2\u30b8\u30e5\u30fc\u30eb<\/p>\n<\/li>\n<\/ul>\n<p>\u3053\u306e\u7279\u5fb4\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u69cb\u9020\u306b\u7e1b\u3089\u308c\u308b\u3053\u3068\u306a\u304f\u3001\u30d5\u30a9\u30fc\u30e0\u306e\u8981\u4ef6\u306b\u5408\u308f\u305b\u3066\u81ea\u7531\u306b\u5c5e\u6027\u3092\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u78ba\u8a8d\u7528\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u30d5\u30a3\u30fc\u30eb\u30c9\u3084\u3001\u8907\u6570\u306e\u30e2\u30c7\u30eb\u306b\u307e\u305f\u304c\u308b\u60c5\u5831\u30921\u3064\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u6271\u3046\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h4 id=\"2-\u30e2\u30c7\u30eb\u3068\u540c\u3058IF\u3067\u4e3b\u306b\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u304b\u3089\u547c\u3070\u308c\u308b\">2. \u30e2\u30c7\u30eb\u3068\u540c\u3058I\/F\u3067\u3001\u4e3b\u306b\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u304b\u3089\u547c\u3070\u308c\u308b<\/h4>\n<p>FormObject\u306f\u3001ActiveRecord\u30e2\u30c7\u30eb\u3068\u540c\u3058\u30e1\u30bd\u30c3\u30c9\uff08<code>new<\/code>\u3001<code>save<\/code>\u3001<code>valid?<\/code>\u306a\u3069\uff09\u3092\u6301\u3064\u305f\u3081\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u304b\u3089\u898b\u308b\u3068\u901a\u5e38\u306e\u30e2\u30c7\u30eb\u3068\u540c\u3058\u3088\u3046\u306b\u6271\u3048\u307e\u3059\u3002<\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\"><span class=\"synPreProc\">class<\/span> <span class=\"synType\">UsersController<\/span> ApplicationController\n  <span class=\"synPreProc\">def<\/span> <span class=\"synIdentifier\">create<\/span>\n    <span class=\"synIdentifier\">@form<\/span> = <span class=\"synType\">UserNewForm<\/span>.new(user_params)\n    \n    <span class=\"synStatement\">if<\/span> <span class=\"synIdentifier\">@form<\/span>.save  \n      redirect_to users_path, <span class=\"synConstant\">notice<\/span>: <span class=\"synSpecial\">'<\/span><span class=\"synConstant\">\u30e6\u30fc\u30b6\u30fc\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f<\/span><span class=\"synSpecial\">'<\/span>\n    <span class=\"synStatement\">else<\/span>\n      render <span class=\"synConstant\">:new<\/span>  \n    <span class=\"synStatement\">end<\/span>\n  <span class=\"synPreProc\">end<\/span>\n<span class=\"synPreProc\">end<\/span>\n<\/pre>\n<p>\u3053\u308c\u306b\u3088\u308a\u3001\u65e2\u5b58\u306e\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306e\u30b3\u30fc\u30c9\u3092\u5927\u304d\u304f\u5909\u66f4\u3059\u308b\u3053\u3068\u306a\u304f\u3001FormObject\u3092\u5c0e\u5165\u3067\u304d\u307e\u3059\u3002Rails\u306e\u300c\u8a2d\u5b9a\u3088\u308a\u898f\u7d04\u300d\u306e\u601d\u60f3\u3092\u4fdd\u3061\u306a\u304c\u3089\u3001\u3088\u308a\u8907\u96d1\u306a\u8981\u4ef6\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u306e\u3067\u3059\u3002<\/p>\n<h4 id=\"3-\u72ec\u81ea\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u51e6\u7406\u3092\u6301\u3066\u308b\">3. \u72ec\u81ea\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u51e6\u7406\u3092\u6301\u3066\u308b<\/h4>\n<p>FormObject\u3067\u306f\u3001\u305d\u306e\u30d5\u30a9\u30fc\u30e0\u7279\u6709\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3084\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\"><span class=\"synPreProc\">class<\/span> <span class=\"synType\">UserRegistrationForm<\/span>\n  <span class=\"synPreProc\">include<\/span> <span class=\"synType\">ActiveModel<\/span>::<span class=\"synType\">Model<\/span>\n  \n  <span class=\"synPreProc\">attr_accessor<\/span> <span class=\"synConstant\">:email<\/span>, <span class=\"synConstant\">:password<\/span>, <span class=\"synConstant\">:password_confirmation<\/span>, <span class=\"synConstant\">:terms_accepted<\/span>\n  \n  validates <span class=\"synConstant\">:email<\/span>, <span class=\"synConstant\">presence<\/span>: <span class=\"synConstant\">true<\/span>, <span class=\"synConstant\">format<\/span>: { <span class=\"synConstant\">with<\/span>: <span class=\"synType\">URI<\/span>::<span class=\"synType\">MailTo<\/span>::<span class=\"synType\">EMAIL_REGEXP<\/span> }\n  validates <span class=\"synConstant\">:password<\/span>, <span class=\"synConstant\">presence<\/span>: <span class=\"synConstant\">true<\/span>, <span class=\"synConstant\">length<\/span>: { <span class=\"synConstant\">minimum<\/span>: <span class=\"synConstant\">8<\/span> }\n  validates <span class=\"synConstant\">:password_confirmation<\/span>, <span class=\"synConstant\">presence<\/span>: <span class=\"synConstant\">true<\/span>\n  validates <span class=\"synConstant\">:terms_accepted<\/span>, <span class=\"synConstant\">acceptance<\/span>: <span class=\"synConstant\">true<\/span>  \n  \n  validate <span class=\"synConstant\">:passwords_match<\/span>\n  \n  before_save <span class=\"synConstant\">:normalize_email<\/span>\n  \n  <span class=\"synPreProc\">def<\/span> <span class=\"synIdentifier\">save<\/span>\n    <span class=\"synStatement\">return<\/span> <span class=\"synConstant\">false<\/span> <span class=\"synStatement\">if<\/span> invalid?\n    \n    user = <span class=\"synType\">User<\/span>.create!(\n      <span class=\"synConstant\">email<\/span>: email,\n      <span class=\"synConstant\">password<\/span>: password\n    )\n    \n    \n    <span class=\"synType\">UserMailer<\/span>.welcome_email(user).deliver_later\n    <span class=\"synConstant\">true<\/span>\n  <span class=\"synPreProc\">end<\/span>\n  \n  <span class=\"synPreProc\">private<\/span>\n  \n  <span class=\"synPreProc\">def<\/span> <span class=\"synIdentifier\">passwords_match<\/span>\n    <span class=\"synStatement\">return<\/span> <span class=\"synStatement\">if<\/span> password == password_confirmation\n    errors.add(<span class=\"synConstant\">:password_confirmation<\/span>, <span class=\"synSpecial\">'<\/span><span class=\"synConstant\">\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u4e00\u81f4\u3057\u307e\u305b\u3093<\/span><span class=\"synSpecial\">'<\/span>)\n  <span class=\"synPreProc\">end<\/span>\n  \n  <span class=\"synPreProc\">def<\/span> <span class=\"synIdentifier\">normalize_email<\/span>\n    <span class=\"synConstant\">self<\/span>.email = email.downcase.strip\n  <span class=\"synPreProc\">end<\/span>\n<span class=\"synPreProc\">end<\/span>\n<\/pre>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u30d5\u30a9\u30fc\u30e0\u306e\u6587\u8108\u306b\u7279\u5316\u3057\u305f\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3084\u51e6\u7406\u3092\u7d44\u307f\u8fbc\u3080\u3053\u3068\u3067\u3001\u3088\u308a\u9069\u5207\u306a\u8cac\u52d9\u5206\u96e2\u304c\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<h4 id=\"4-\u30d3\u30e5\u30fc\u306e\u72b6\u614b\u3092\u4fdd\u6301\u3067\u304d\u308b\">4. \u30d3\u30e5\u30fc\u306e\u72b6\u614b\u3092\u4fdd\u6301\u3067\u304d\u308b<\/h4>\n<p>FormObject\u306f\u3001\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u969b\u306b\u5165\u529b\u5024\u3092\u4fdd\u6301\u3057\u3001\u30d3\u30e5\u30fc\u3067\u518d\u8868\u793a\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"code lang-html\" data-lang=\"html\" data-unlink=\"\">\n<span class=\"synIdentifier\"><span class=\"synConstant\"> form_with<\/span><span class=\"synIdentifier\"> model: @<\/span><span class=\"synType\">form<\/span><span class=\"synIdentifier\">, <\/span><span class=\"synType\">url<\/span><span class=\"synIdentifier\">: users_path do |f| %&gt;<\/span>\n  <span class=\"synIdentifier\"><span class=\"synType\">form<\/span><span class=\"synIdentifier\">.errors.any? %&gt;<\/span>\n    <span class=\"synIdentifier\"><span class=\"synStatement\">div<\/span><span class=\"synIdentifier\"> <\/span><span class=\"synType\">class<\/span><span class=\"synIdentifier\">=<\/span><span class=\"synConstant\">\"error-messages\"<\/span><span class=\"synIdentifier\">&gt;<\/span>\n      <span class=\"synIdentifier\"><span class=\"synType\">form<\/span><span class=\"synIdentifier\">.errors.full_messages.each do |message| %&gt;<\/span>\n        <span class=\"synIdentifier\"><span class=\"synStatement\">p<\/span><span class=\"synIdentifier\">&gt;<span class=\"synConstant\"> message<\/span><span class=\"synIdentifier\"> %&gt;<\/span><span class=\"synStatement\">p<\/span><span class=\"synIdentifier\">&gt;<\/span>\n      <span class=\"synIdentifier\"\/>\n    <span class=\"synIdentifier\"\/><span class=\"synStatement\">div<\/span><span class=\"synIdentifier\">&gt;<\/span>\n  <span class=\"synIdentifier\"\/>\n  \n  <span class=\"synIdentifier\"><span class=\"synConstant\"> f.label<\/span><span class=\"synIdentifier\"> :email %&gt;<\/span>\n  <span class=\"synIdentifier\"><span class=\"synConstant\"> f.email_field<\/span><span class=\"synIdentifier\"> :email %&gt;<\/span>  \n  \n  <span class=\"synIdentifier\"><span class=\"synConstant\"> f.label<\/span><span class=\"synIdentifier\"> :password %&gt;<\/span>\n  <span class=\"synIdentifier\"><span class=\"synConstant\"> f.password_field<\/span><span class=\"synIdentifier\"> :password %&gt;<\/span>\n  \n  <span class=\"synIdentifier\"><span class=\"synConstant\"> f.submit<\/span><span class=\"synIdentifier\"> <\/span><span class=\"synConstant\">'\u767b\u9332'<\/span><span class=\"synIdentifier\"> %&gt;<\/span>\n<span class=\"synIdentifier\"\/>\n<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/pre>\n<p>ActiveModel\u306e\u6a5f\u80fd\u306b\u3088\u308a\u3001\u901a\u5e38\u306eActiveRecord\u30e2\u30c7\u30eb\u3068\u540c\u3058\u3088\u3046\u306b\u30d5\u30a9\u30fc\u30e0\u30d8\u30eb\u30d1\u30fc\u3068\u9023\u643a\u3057\u3001\u30e6\u30fc\u30b6\u30d3\u30ea\u30c6\u30a3\u306e\u9ad8\u3044\u30d5\u30a9\u30fc\u30e0\u3092\u69cb\u7bc9\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3089\u306e\u7279\u5fb4\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001FormObject\u306f\u300c\u30d5\u30a9\u30fc\u30e0\u306e\u8981\u4ef6\u306b\u7279\u5316\u3057\u3064\u3064\u3001Rails\u306e\u898f\u7d04\u306b\u5f93\u3063\u305f\u300d\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u3057\u3066\u6a5f\u80fd\u3059\u308b\u306e\u3067\u3059\u3002<\/p>\n<h3 id=\"\u4ed6\u306e\u30ec\u30a4\u30e4\u3068\u306e\u9055\u3044\">\u4ed6\u306e\u30ec\u30a4\u30e4\u3068\u306e\u9055\u3044<\/h3>\n<p>FormObject\u3068\u4f3c\u305f\u5f79\u5272\u3092\u6301\u3064\u30ec\u30a4\u30e4\u3068\u306e\u6bd4\u8f03\u3082\u793a\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<div class=\"s_table\"><table>\n<thead>\n<tr>\n<th> \u30ec\u30a4\u30e4 <\/th>\n<th> \u30e2\u30c7\u30eb\u3068\u540c\u3058I\/F <\/th>\n<th> \u5165\u529b\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3 <\/th>\n<th> \u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u51e6\u7406 <\/th>\n<th> \u30d3\u30e5\u30fc\u306e\u72b6\u614b\u4fdd\u6301 <\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td> FormObject <\/td>\n<td> \u25ef <\/td>\n<td> \u25ef <\/td>\n<td> \u25ef <\/td>\n<td> \u25ef <\/td>\n<\/tr>\n<tr>\n<td> Application Model <\/td>\n<td> \u25ef <\/td>\n<td> \u25ef <\/td>\n<td> \u25ef <\/td>\n<td> \u00d7 <\/td>\n<\/tr>\n<tr>\n<td> View Model <\/td>\n<td> \u00d7 <\/td>\n<td> \u00d7 <\/td>\n<td> \u00d7 <\/td>\n<td> \u25ef <\/td>\n<\/tr>\n<tr>\n<td> Interactor <\/td>\n<td> &#8211; <\/td>\n<td> \u25ef <\/td>\n<td> \u00d7 <\/td>\n<td> \u25ef <\/td>\n<\/tr>\n<tr>\n<td> Service Object <\/td>\n<td> \u00d7 <\/td>\n<td> \u00d7 <\/td>\n<td> \u25ef <\/td>\n<td> \u00d7 <\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<h2 id=\"FormObject\u306e\u4f7f\u3044\u3069\u3053\u308d\">FormObject\u306e\u4f7f\u3044\u3069\u3053\u308d<\/h2>\n<h3 id=\"Rails-Way\u306e\u6069\u6075\u3068\u305d\u306e\u524d\u63d0\">Rails Way\u306e\u6069\u6075\u3068\u305d\u306e\u524d\u63d0<\/h3>\n<p>Rails Way\u306f\u3001\u4ee5\u4e0b\u306e3\u3064\u306e\u524d\u63d0\u306b\u5272\u308a\u5207\u308b\u3053\u3068\u3067\u3001\u9a5a\u304f\u3079\u304d\u958b\u767a\u52b9\u7387\u3092\u5b9f\u73fe\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u30ea\u30bd\u30fc\u30b9(R) &#8211; \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9(C) &#8211; \u30e2\u30c7\u30eb(M) &#8211; \u30c6\u30fc\u30d6\u30eb(T)\u304c\u3059\u3079\u30661\u5bfe1\u306b\u5bfe\u5fdc<\/strong><\/li>\n<li><strong>\u4e00\u5ea6\u306b\u884c\u3046\u306e\u306f\u3061\u3087\u3046\u3069\u3072\u3068\u3064\u306e\u30e2\u30c7\u30eb\u64cd\u4f5c\u3067\u3088\u3044<\/strong><\/li>\n<li><strong>\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u51e6\u7406\u306f\u3072\u3068\u3064\u306e\u30d1\u30bf\u30fc\u30f3\u306e\u307f\u3067\u3088\u3044<\/strong><\/li>\n<\/ul>\n<p>\u3053\u306e\u300c\u5272\u308a\u5207\u308a\u300d\u306b\u3088\u308a\u3001Rails\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5927\u304d\u306a\u6069\u6075\u3092\u3082\u305f\u3089\u3057\u307e\u3059\uff1a<\/p>\n<h4 id=\"\u958b\u767a\u901f\u5ea6\u306e\u5287\u7684\u306a\u5411\u4e0a\">\u958b\u767a\u901f\u5ea6\u306e\u5287\u7684\u306a\u5411\u4e0a<\/h4>\n<p><code>rails generate scaffold User name:string email:string<\/code> \u4e00\u884c\u3067\u3001\u5b8c\u5168\u306b\u52d5\u4f5c\u3059\u308bCRUD\u6a5f\u80fd\u304c\u5b8c\u6210\u3057\u307e\u3059\u3002\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3001\u30e2\u30c7\u30eb\u3001\u30d3\u30e5\u30fc\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3001\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\u307e\u3067\u3001\u3059\u3079\u3066\u304c\u4e00\u8cab\u3057\u305f\u69cb\u9020\u3067\u81ea\u52d5\u751f\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n<h4 id=\"\u5b66\u7fd2\u30b3\u30b9\u30c8\u306e\u5927\u5e45\u524a\u6e1b\">\u5b66\u7fd2\u30b3\u30b9\u30c8\u306e\u5927\u5e45\u524a\u6e1b<\/h4>\n<p>\u4e00\u5ea6Rails\u306e\u898f\u7d04\u3092\u899a\u3048\u308c\u3070\u3001\u3069\u306eRails\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u3082\u540c\u3058\u30d1\u30bf\u30fc\u30f3\u3067\u958b\u767a\u3067\u304d\u307e\u3059\u3002\u65b0\u3057\u3044\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u53c2\u52a0\u3057\u3066\u3082\u3001\u30d5\u30a1\u30a4\u30eb\u69cb\u9020\u3084\u30b3\u30fc\u30c9\u306e\u66f8\u304d\u65b9\u304c\u4e88\u6e2c\u3067\u304d\u3001\u3059\u3050\u306b\u751f\u7523\u6027\u3092\u767a\u63ee\u3067\u304d\u308b\u306e\u3067\u3059\u3002<\/p>\n<h4 id=\"\u30c1\u30fc\u30e0\u958b\u767a\u3067\u306e\u4e00\u8cab\u6027\">\u30c1\u30fc\u30e0\u958b\u767a\u3067\u306e\u4e00\u8cab\u6027<\/h4>\n<p>\u8ab0\u304c\u66f8\u3044\u3066\u3082\u540c\u3058\u3088\u3046\u306a\u69cb\u9020\u306b\u306a\u308b\u305f\u3081\u3001\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u3084\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002\u300c\u8a2d\u5b9a\u3088\u308a\u898f\u7d04\u300d\u306b\u3088\u308a\u3001\u7d30\u304b\u306a\u8a2d\u5b9a\u3067\u60a9\u3080\u6642\u9593\u3092\u524a\u6e1b\u3057\u3001\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306b\u96c6\u4e2d\u3067\u304d\u307e\u3059\u3002<\/p>\n<h4 id=\"\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u5bb9\u6613\u3055\">\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u5bb9\u6613\u3055<\/h4>\n<p>\u4e88\u6e2c\u53ef\u80fd\u306a\u69cb\u9020\u306b\u3088\u308a\u3001\u30d0\u30b0\u4fee\u6b63\u3084\u6a5f\u80fd\u8ffd\u52a0\u306e\u969b\u306b\u300c\u3069\u3053\u3092\u898b\u308c\u3070\u826f\u3044\u304b\u300d\u304c\u660e\u78ba\u3067\u3059\u3002\u65b0\u3057\u3044\u30e1\u30f3\u30d0\u30fc\u3067\u3082\u3001\u65e2\u5b58\u306e\u30b3\u30fc\u30c9\u3092\u7406\u89e3\u3057\u3084\u3059\u304f\u3001\u5b89\u5fc3\u3057\u3066\u5909\u66f4\u3092\u52a0\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3 id=\"\u3057\u304b\u3057\u73fe\u5b9f\u306f\u305d\u3046\u5358\u7d14\u3067\u306f\u306a\u3044\">\u3057\u304b\u3057\u3001\u73fe\u5b9f\u306f\u305d\u3046\u5358\u7d14\u3067\u306f\u306a\u3044<\/h3>\n<p>\u3053\u306e\u7d20\u6674\u3089\u3057\u3044Rails Way\u306e\u6069\u6075\u3092\u53d7\u3051\u3089\u308c\u308b\u306e\u306f\u3001\u4e0a\u8a18\u306e3\u3064\u306e\u524d\u63d0\u304c\u6210\u308a\u7acb\u3064\u5834\u5408\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u5b9f\u969b\u306eWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u524d\u63d0\u304c\u6210\u308a\u7acb\u305f\u306a\u3044\u5834\u9762\u304c\u51fa\u3066\u304d\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u306f\u6c7a\u3057\u3066Rails Way\u304c\u60aa\u3044\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u8981\u4ef6\u304c\u8907\u96d1\u306b\u306a\u308c\u3070\u3001\u30b7\u30f3\u30d7\u30eb\u306a\u524d\u63d0\u3060\u3051\u3067\u306f\u5bfe\u5fdc\u3057\u304d\u308c\u306a\u3044\u306e\u306f\u81ea\u7136\u306a\u3053\u3068\u3067\u3059\u3002<\/p>\n<h3 id=\"3\u3064\u306e\u4f7f\u3044\u3069\u3053\u308d\u30d1\u30bf\u30fc\u30f3\">3\u3064\u306e\u4f7f\u3044\u3069\u3053\u308d\u30d1\u30bf\u30fc\u30f3<\/h3>\n<p>FormObject\u304c\u5fc5\u8981\u306b\u306a\u308b\u306e\u306f\u3001\u4e0a\u8a18\u306e\u4eee\u5b9a\u306e\u300c\u3072\u3068\u3064\u300d\u304c\u5d29\u308c\u308b\u3068\u304d\u3067\u3059\uff1a<\/p>\n<h4 id=\"\u30d1\u30bf\u30fc\u30f3-\u30e2\u30c7\u30eb\u3092\u64cd\u4f5c\u3057\u306a\u3044\">\u30d1\u30bf\u30fc\u30f3\u2460 \u30e2\u30c7\u30eb\u3092\u64cd\u4f5c\u3057\u306a\u3044<\/h4>\n<p><strong>\u4f8b\uff1a\u30e1\u30fc\u30eb\u30d5\u30a9\u30fc\u30e0<\/strong><\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\"><span class=\"synPreProc\">class<\/span> <span class=\"synType\">FeedbackForm<\/span>\n  <span class=\"synPreProc\">include<\/span> <span class=\"synType\">ActiveModel<\/span>::<span class=\"synType\">Model<\/span>\n  \n  <span class=\"synPreProc\">attr_accessor<\/span> <span class=\"synConstant\">:title<\/span>, <span class=\"synConstant\">:body<\/span>\n  validates <span class=\"synConstant\">:title<\/span>, <span class=\"synConstant\">:body<\/span>, <span class=\"synConstant\">presence<\/span>: <span class=\"synConstant\">true<\/span>\n  \n  <span class=\"synPreProc\">def<\/span> <span class=\"synIdentifier\">save<\/span>\n    <span class=\"synStatement\">return<\/span> <span class=\"synConstant\">false<\/span> <span class=\"synStatement\">if<\/span> invalid?\n    <span class=\"synType\">SomeMailer<\/span>.feedback(title, body).deliver_later\n    <span class=\"synConstant\">true<\/span>\n  <span class=\"synPreProc\">end<\/span>\n<span class=\"synPreProc\">end<\/span>\n<\/pre>\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u306e\u4fdd\u5b58\u306f\u884c\u308f\u305a\u3001\u30e1\u30fc\u30eb\u9001\u4fe1\u306e\u307f\u3092\u884c\u3046\u30b1\u30fc\u30b9\u3067\u3059\u3002<\/p>\n<h4 id=\"\u30d1\u30bf\u30fc\u30f3-2\u500b\u4ee5\u4e0a\u306e\u30e2\u30c7\u30eb\u3092\u64cd\u4f5c\u3059\u308b\">\u30d1\u30bf\u30fc\u30f3\u2461 2\u500b\u4ee5\u4e0a\u306e\u30e2\u30c7\u30eb\u3092\u64cd\u4f5c\u3059\u308b<\/h4>\n<p><strong>\u4f8b\uff1a\u4f1a\u793e\u30fb\u793e\u9577\u30fb\u5f93\u696d\u54e1\u3092\u4e00\u753b\u9762\u3067\u767b\u9332<\/strong><\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\"><span class=\"synPreProc\">class<\/span> <span class=\"synType\">CompanyRegistrationForm<\/span>\n  <span class=\"synPreProc\">include<\/span> <span class=\"synType\">ActiveModel<\/span>::<span class=\"synType\">Model<\/span>\n  \n  <span class=\"synPreProc\">attr_accessor<\/span> <span class=\"synConstant\">:company_name<\/span>, <span class=\"synConstant\">:company_address<\/span>, <span class=\"synConstant\">:president_name<\/span>, <span class=\"synConstant\">:employee_names<\/span>\n  \n  <span class=\"synPreProc\">def<\/span> <span class=\"synIdentifier\">save<\/span>\n    <span class=\"synType\">ActiveRecord<\/span>::<span class=\"synType\">Base<\/span>.transaction <span class=\"synStatement\">do<\/span>\n      company = <span class=\"synType\">Company<\/span>.create!(<span class=\"synConstant\">name<\/span>: company_name, <span class=\"synConstant\">address<\/span>: company_address)\n      president = <span class=\"synType\">User<\/span>.create!(<span class=\"synConstant\">name<\/span>: president_name, <span class=\"synConstant\">role<\/span>: <span class=\"synSpecial\">'<\/span><span class=\"synConstant\">president<\/span><span class=\"synSpecial\">'<\/span>)\n      employees = employee_names.map { |name| <span class=\"synType\">User<\/span>.create!(<span class=\"synConstant\">name<\/span>: name, <span class=\"synConstant\">role<\/span>: <span class=\"synSpecial\">'<\/span><span class=\"synConstant\">employee<\/span><span class=\"synSpecial\">'<\/span>) }\n      \n      company.president = president\n      company.employees = employees\n      company.save!\n    <span class=\"synStatement\">end<\/span>\n  <span class=\"synPreProc\">end<\/span>\n<span class=\"synPreProc\">end<\/span>\n<\/pre>\n<p>\u8907\u6570\u306e\u30e2\u30c7\u30eb\u3092\u4e00\u5ea6\u306b\u64cd\u4f5c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u3067\u3059\u3002<\/p>\n<h4 id=\"\u30d1\u30bf\u30fc\u30f3-\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u51e6\u7406\u3092\u30a2\u30af\u30b7\u30e7\u30f3\u3054\u3068\u306b\u5206\u3051\u308b\">\u30d1\u30bf\u30fc\u30f3\u2462 \u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u51e6\u7406\u3092\u30a2\u30af\u30b7\u30e7\u30f3\u3054\u3068\u306b\u5206\u3051\u308b<\/h4>\n<p><strong>\u4f8b\uff1a\u30e6\u30fc\u30b6\u306e\u4f5c\u6210\u3068\u7de8\u96c6\u3067\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u5206\u3051<\/strong><\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\"><span class=\"synPreProc\">class<\/span> <span class=\"synType\">UserNewForm<\/span>\n  <span class=\"synPreProc\">include<\/span> <span class=\"synType\">ActiveModel<\/span>::<span class=\"synType\">Model<\/span>\n  <span class=\"synPreProc\">attr_accessor<\/span> <span class=\"synConstant\">:screen_name<\/span>, <span class=\"synConstant\">:name<\/span>\n  validates <span class=\"synConstant\">:screen_name<\/span>, <span class=\"synConstant\">:name<\/span>, <span class=\"synConstant\">presence<\/span>: <span class=\"synConstant\">true<\/span>\n  \n<span class=\"synPreProc\">end<\/span>\n\n<span class=\"synPreProc\">class<\/span> <span class=\"synType\">UserEditForm<\/span>\n  <span class=\"synPreProc\">include<\/span> <span class=\"synType\">ActiveModel<\/span>::<span class=\"synType\">Model<\/span>\n  <span class=\"synPreProc\">attr_accessor<\/span> <span class=\"synConstant\">:name<\/span>\n  validates <span class=\"synConstant\">:name<\/span>, <span class=\"synConstant\">presence<\/span>: <span class=\"synConstant\">true<\/span>\n  \n<span class=\"synPreProc\">end<\/span>\n<\/pre>\n<p>\u540c\u3058\u30e2\u30c7\u30eb\u3067\u3082\u3001\u30a2\u30af\u30b7\u30e7\u30f3\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3084\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u51e6\u7406\u304c\u5fc5\u8981\u306a\u5834\u5408\u3067\u3059\u3002<\/p>\n<h2 id=\"\u306a\u305c\u73fe\u5834\u306bFormObject\u304c\u6ea2\u308c\u3066\u3044\u308b\u306e\u304b\">\u306a\u305c\u73fe\u5834\u306bFormObject\u304c\u6ea2\u308c\u3066\u3044\u308b\u306e\u304b<\/h2>\n<h3 id=\"\u73fe\u4ee3\u306eWeb\u30a2\u30d7\u30ea\u306eUX\u8981\u6c42\">\u73fe\u4ee3\u306eWeb\u30a2\u30d7\u30ea\u306eUX\u8981\u6c42<\/h3>\n<p>\u73fe\u4ee3\u306eWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001<strong>\u300c\u8907\u96d1\u306a\u64cd\u4f5c\u3092\u30ef\u30f3\u30bf\u30c3\u30d7\u3067\u5b9f\u65bd\u3057\u305f\u3044\u300d<\/strong>\u3068\u3044\u3046\u30e6\u30fc\u30b6\u8981\u6c42\u304c\u9ad8\u307e\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001EC\u30b5\u30a4\u30c8\u306e\u8cfc\u5165\u51e6\u7406\u3067\u306f\uff1a<br \/>\n&#8211; \u5728\u5eab\u3092\u6e1b\u3089\u3059<br \/>\n&#8211; \u6ce8\u6587\u3092\u4f5c\u6210\u3059\u308b<br \/>\n&#8211; \u6c7a\u6e08\u3059\u308b<br \/>\n&#8211; \u6c7a\u6e08\u8a18\u9332\u3092\u4f5c\u6210\u3059\u308b<br \/>\n&#8211; \u901a\u77e5\u3092\u9001\u4fe1\u3059\u308b<\/p>\n<p>\u3053\u308c\u3089\u306e\u51e6\u7406\u3092\u300c\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u8cfc\u5165\u300d\u3068\u3057\u3066\u4e00\u5ea6\u306b\u5b9f\u884c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3 id=\"UX\u304c\u58f2\u4e0a\u306b\u4e0e\u3048\u308b\u5f71\u97ff\">UX\u304c\u58f2\u4e0a\u306b\u4e0e\u3048\u308b\u5f71\u97ff<\/h3>\n<p>\u767a\u8868\u3067\u306f\u3001\u30b3\u30fc\u30cd\u30eb\u5927\u5b66\u306e\u8abf\u67fb\uff082023\u5e74\uff09\u304c\u7d39\u4ecb\u3055\u308c\u307e\u3057\u305f\uff1a<\/p>\n<blockquote>\n<p>\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u8cfc\u5165\u306b\u767b\u9332\u3057\u305f\u9867\u5ba2\u306f\u3001\u5e73\u5747\u652f\u51fa\u984d\u30fb\u8cfc\u5165\u983b\u5ea6\u30fb\u8cfc\u5165\u70b9\u6570\u304c\u3044\u305a\u308c\u3082\u5897\u52a0\u3057\u3001\u30b5\u30a4\u30c8\u3078\u306e\u8a2a\u554f\u56de\u6570\u30fb\u30da\u30fc\u30b8\u95b2\u89a7\u56de\u6570\u30fb\u6ede\u5728\u6642\u9593\u3082\u5897\u52a0\u3057\u3066\u3044\u305f<\/p>\n<\/blockquote>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001UX\u306e\u6539\u5584\u304c\u76f4\u63a5\u58f2\u4e0a\u306b\u5f71\u97ff\u3059\u308b\u4e8b\u4f8b\u304c\u3042\u308b\u305f\u3081\u3001\u8907\u96d1\u306a\u64cd\u4f5c\u3092\u30b7\u30f3\u30d7\u30eb\u306a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3067\u63d0\u4f9b\u3059\u308b\u5fc5\u8981\u6027\u304c\u9ad8\u307e\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3 id=\"\u5b9f\u88c5\u3078\u306e\u5f71\u97ff\">\u5b9f\u88c5\u3078\u306e\u5f71\u97ff<\/h3>\n<p>\u8907\u96d1\u306a\u64cd\u4f5c\u3092\u30ef\u30f3\u30bf\u30c3\u30d7\u3067\u5b9f\u65bd\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3068\uff1a<\/p>\n<ul>\n<li><strong>\u64cd\u4f5c\u304c\u8907\u96d1\u306b\u306a\u308b\u3068<\/strong> \u2192 \u5fc5\u8981\u306a\u30c7\u30fc\u30bf\u304c\u5897\u3048\u3001\u4e00\u5ea6\u306b\u64cd\u4f5c\u3059\u308b\u30e2\u30c7\u30eb\u6570\u304c\u5897\u3048\u308b<\/li>\n<li><strong>\u30ef\u30f3\u30bf\u30c3\u30d7\u3067\u5b9f\u65bd\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3068<\/strong> \u2192 \u540c\u3058\u30e2\u30c7\u30eb\u3092\u5225\u3005\u306e\u7b87\u6240\u304b\u3089\u64cd\u4f5c\u3059\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u307e\u308b<\/li>\n<\/ul>\n<p>\u3044\u305a\u308c\u3082FormObject\u306e\u4f7f\u3044\u3069\u3053\u308d\u306b\u8a72\u5f53\u3057\u3001\u3053\u306e\u50be\u5411\u306f\u6642\u9593\u3068\u3068\u3082\u306b\u9ad8\u307e\u3063\u3066\u3044\u304f\u305f\u3081\u3001\u73fe\u5834\u306bFormObject\u304c\u6ea2\u308c\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\n<h2 id=\"FormObject\u3068\u306e\u5411\u304d\u5408\u3044\u65b9\">FormObject\u3068\u306e\u5411\u304d\u5408\u3044\u65b9<\/h2>\n<h3 id=\"\u7406\u89e3\u3057\u3066\u4f7f\u3046\u3053\u3068\u306e\u91cd\u8981\u6027\">\u7406\u89e3\u3057\u3066\u4f7f\u3046\u3053\u3068\u306e\u91cd\u8981\u6027<\/h3>\n<p>FormObject\u306f\u78ba\u304b\u306b\u7406\u89e3\u304c\u96e3\u3057\u3044\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u304c\u3001Rails\u3067\u4ed5\u4e8b\u3092\u3059\u308b\u306a\u3089\u5411\u304d\u5408\u308f\u306a\u304f\u3066\u306f\u306a\u3089\u306a\u3044\u5b58\u5728\u3067\u3059\u3002<\/p>\n<p>\u91cd\u8981\u306a\u306e\u306f\u300c\u306a\u3093\u3068\u306a\u304f\u300d\u3067\u4f7f\u3046\u306e\u3067\u306f\u306a\u304f\u3001\u4ee5\u4e0b\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u306a\u305cFormObject\u304c\u5fc5\u8981\u306a\u306e\u304b<\/strong>\uff08Rails Way\u306e\u5236\u7d04\u3092\u8d85\u3048\u308b\u5fc5\u8981\u304c\u3042\u308b\uff09<\/li>\n<li><strong>\u3069\u306e\u30d1\u30bf\u30fc\u30f3\u306b\u8a72\u5f53\u3059\u308b\u306e\u304b<\/strong>\uff080\u500b\u30012\u500b\u4ee5\u4e0a\u3001\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u5206\u96e2\uff09<\/li>\n<li><strong>\u9069\u5207\u306a\u8cac\u52d9\u306e\u5206\u96e2<\/strong>\uff08\u5fc5\u8981\u4ee5\u4e0a\u306b\u8907\u96d1\u306b\u3057\u306a\u3044\uff09<\/li>\n<\/ul>\n<h3 id=\"\u5de8\u4eba\u306e\u80a9\u306b\u4e57\u308b\u59ff\u52e2\">\u300c\u5de8\u4eba\u306e\u80a9\u306b\u4e57\u308b\u300d\u59ff\u52e2<\/h3>\n<p>\u767a\u8868\u306e\u6700\u5f8c\u3067\u5370\u8c61\u7684\u3060\u3063\u305f\u306e\u306f\u3001\u300c\u300e\u306a\u3093\u3068\u306a\u304f\u300f\u3067\u4f7f\u308f\u305a\u300e\u5de8\u4eba\u306e\u80a9\u306b\u4e57\u308b\u300f\u59ff\u52e2\u3092\u5fd8\u308c\u305a\u306b\u300d\u3068\u3044\u3046\u30e1\u30c3\u30bb\u30fc\u30b8\u3067\u3057\u305f\u3002<\/p>\n<p>Rails\u306f\u300c\u7c21\u5358\u300d\u3068\u7d39\u4ecb\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u304c\u3001\u7c21\u5358\u306a\u90e8\u5206\u3060\u3051\u3067\u98df\u3063\u3066\u3044\u3051\u308b\u307b\u3069\u7518\u304f\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u3001\u300c\u30ec\u30fc\u30eb\u306e\u4f38\u3070\u3057\u65b9\u300d\u306f\u5148\u4eba\u304c\u691c\u8a0e\u3057\u3066\u6b8b\u3057\u3066\u304f\u308c\u3066\u304a\u308a\u3001AI\u3082\u305d\u308c\u3089\u3092\u5b66\u7fd2\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>FormObject\u3082\u3001\u5148\u4eba\u305f\u3061\u304c\u7a4d\u307f\u91cd\u306d\u3066\u304d\u305f\u77e5\u898b\u306e\u4e00\u3064\u3067\u3059\u3002\u305d\u306e\u80cc\u666f\u3084\u7406\u7531\u3092\u7406\u89e3\u3057\u3066\u4f7f\u3046\u3053\u3068\u3067\u3001\u3088\u308a\u826f\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u3051\u308b\u3088\u3046\u306b\u306a\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<h2 id=\"\u307e\u3068\u3081\">\u307e\u3068\u3081<\/h2>\n<p>\u4eca\u56de\u306e\u767a\u8868\u3092\u901a\u3058\u3066\u3001FormObject\u306b\u3064\u3044\u3066\u4ee5\u4e0b\u306e\u3053\u3068\u3092\u5b66\u3073\u307e\u3057\u305f\uff1a<\/p>\n<ul>\n<li><strong>FormObject\u306e\u4f7f\u3044\u3069\u3053\u308d\u306f\u3001Rails Way\u306e\u4eee\u5b9a\u306b\u53cd\u3059\u308b\u3068\u304d<\/strong><\/li>\n<li><strong>3\u3064\u306e\u30d1\u30bf\u30fc\u30f3\uff080\u500b\u30012\u500b\u4ee5\u4e0a\u3001\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u5206\u96e2\uff09\u306b\u5206\u3051\u3066\u8003\u3048\u3089\u308c\u308b<\/strong><\/li>\n<li><strong>\u73fe\u4ee3\u306eWeb\u30a2\u30d7\u30ea\u306eUX\u8981\u6c42\u306b\u3088\u308a\u3001FormObject\u306e\u5fc5\u8981\u6027\u306f\u9ad8\u307e\u3063\u3066\u3044\u308b<\/strong><\/li>\n<li><strong>\u300c\u306a\u3093\u3068\u306a\u304f\u300d\u3067\u306f\u306a\u304f\u3001\u7406\u89e3\u3057\u3066\u5411\u304d\u5408\u3046\u3053\u3068\u304c\u91cd\u8981<\/strong><\/li>\n<\/ul>\n<p>FormObject\u306f\u96e3\u3057\u3044\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u304c\u3001\u305d\u306e\u80cc\u666f\u3068\u4f7f\u3044\u3069\u3053\u308d\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u9069\u5207\u306b\u6d3b\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u73fe\u5834\u3067FormObject\u306b\u51fa\u4f1a\u3063\u305f\u3068\u304d\u306f\u3001\u4eca\u56de\u5b66\u3093\u30603\u3064\u306e\u30d1\u30bf\u30fc\u30f3\u306e\u3069\u308c\u306b\u8a72\u5f53\u3059\u308b\u304b\u3092\u8003\u3048\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u5c0f\u5ddd\u539f\u3055\u3093\u306e\u5206\u304b\u308a\u3084\u3059\u3044\u89e3\u8aac\u306e\u304a\u304b\u3052\u3067\u3001FormObject\u3078\u306e\u7406\u89e3\u304c\u6df1\u307e\u308a\u307e\u3057\u305f\u3002\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3057\u305f\uff01<\/p>\n<h2 id=\"\u53c2\u8003\u30ea\u30f3\u30af\">\u53c2\u8003\u30ea\u30f3\u30af<\/h2>\n<hr\/>\n<p>Techouse\u3067\u306f\u3001\u793e\u4f1a\u8ab2\u984c\u306e\u89e3\u6c7a\u306b\u4e00\u7dd2\u306b\u53d6\u308a\u7d44\u3080\u30a8\u30f3\u30b8\u30cb\u30a2\u3092\u52df\u96c6\u3057\u3066\u304a\u308a\u307e\u3059\u3002<br \/>\n\u3054\u5fdc\u52df\u304a\u5f85\u3061\u3057\u3066\u304a\u308a\u307e\u3059\u3002<\/p>\n<p><iframe src=\"https:\/\/hatenablog-parts.com\/embed?url=https%3A%2F%2Fjp.techouse.com%2Fjobs%2F16\" title=\"\u682a\u5f0f\u4f1a\u793eTechouse | \u30c6\u30c3\u30af\u30ea\u30fc\u30c9\" class=\"embed-card embed-webcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 155px; max-width: 500px; margin: 10px 0px;\" loading=\"lazy\"><\/iframe><cite class=\"hatena-citation\"><a target=\"_blank\" href=\"https:\/\/jp.techouse.com\/jobs\/16\">jp.techouse.com<\/a><\/cite><\/p>\n<\/div>\n<p><script>(function(d, s, id) {\n  var js, fjs = d.getElementsByTagName(s)[0];\n  if 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