{"id":1492,"date":"2025-03-24T08:50:36","date_gmt":"2025-03-23T23:50:36","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=1492"},"modified":"2025-03-24T08:50:36","modified_gmt":"2025-03-23T23:50:36","slug":"%e3%80%902024%e5%b9%b4%e4%bf%9d%e5%ad%98%e7%89%88%e3%80%91%e3%81%9f%e3%81%a3%e3%81%9f3%e6%99%82%e9%96%93%e3%81%a7web%e3%82%a2%e3%83%97%e3%83%aa%e3%81%8c%e4%bd%9c%e3%82%8c%e3%82%8b%ef%bc%81ruby-on-rail","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=1492","title":{"rendered":"\u30102024\u5e74\u4fdd\u5b58\u7248\u3011\u305f\u3063\u305f3\u6642\u9593\u3067Web\u30a2\u30d7\u30ea\u304c\u4f5c\u308c\u308b\uff01Ruby on Rails\u5165\u9580\u30ac\u30a4\u30c9"},"content":{"rendered":"\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>116<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>121<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>128<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"\u76ee\u6b21\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">Ruby on Rails\u3068\u306f\uff1f\u73fe\u5834\u3067\u9078\u3070\u308c\u7d9a\u3051\u308b\u7406\u7531<\/a>  <\/li>  <li>    <a href=\"#i-1\">Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u306e\u5e38\u8b58\u3092\u5909\u3048\u305f\u9769\u65b0\u7684\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af<\/a>  <\/li>  <li>    <a href=\"#i-2\">Ruby on Rails\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c83\u9078<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-3\">1. \u5727\u5012\u7684\u306a\u958b\u767a\u901f\u5ea6<\/a>      <\/li>      <li>        <a href=\"#i-4\">2. \u5145\u5b9f\u3057\u305f\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-5\">3. \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306e\u6a19\u6e96\u88c5\u5099<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-6\">\u73fe\u5834\u3067\u9078\u3070\u308c\u7d9a\u3051\u308b\u7406\u7531<\/a>  <\/li>  <li>    <a href=\"#i-7\">Rails\u74b0\u5883\u69cb\u7bc9\u3092\u6700\u77ed\u3067\u6210\u529f\u3055\u305b\u308b\u30b3\u30c4<\/a>  <\/li>  <li>    <a href=\"#i-8\">Mac\u30e6\u30fc\u30b6\u30fc\u306e\u305f\u3081\u306eRails\u74b0\u5883\u69cb\u7bc9\u30ac\u30a4\u30c9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-9\">1. Homebrew\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/a>      <\/li>      <li>        <a href=\"#i-10\">2. rbenv\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3068Ruby\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-11\">3. Rails\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-12\">Windows\u30e6\u30fc\u30b6\u30fc\u306e\u305f\u3081\u306eRails\u74b0\u5883\u69cb\u7bc9\u30ac\u30a4\u30c9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-13\">1. WSL2\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-14\">2. Ubuntu\u3067\u306e\u74b0\u5883\u69cb\u7bc9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-15\">\u3088\u304f\u3042\u308b\u74b0\u5883\u69cb\u7bc9\u306e\u30c8\u30e9\u30d6\u30eb\u3068\u89e3\u6c7a\u65b9\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-16\">1. \u6a29\u9650\u95a2\u9023\u306e\u30a8\u30e9\u30fc<\/a>      <\/li>      <li>        <a href=\"#i-17\">2. SSL\u8a3c\u660e\u66f8\u30a8\u30e9\u30fc<\/a>      <\/li>      <li>        <a href=\"#i-18\">3. Node.js\u3068Yarn\u306e\u4e0d\u8db3<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-19\">\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u6210\u529f\u306e\u78ba\u8a8d\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-20\">\u74b0\u5883\u69cb\u7bc9\u6642\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8<\/a>  <\/li>  <li>    <a href=\"#i-21\">\u306f\u3058\u3081\u3066\u306eRails\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-22\">\u30b7\u30f3\u30d7\u30eb\u306a\u30d6\u30ed\u30b0\u30a2\u30d7\u30ea\u3092\u4f5c\u308a\u306a\u304c\u3089\u5b66\u3076Rails\u57fa\u790e<\/a>      <\/li>      <li>        <a href=\"#i-24\">\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u57fa\u672c\u6982\u5ff5\u3092Rails\u3067\u7406\u89e3\u3059\u308b<\/a>      <\/li>      <li>        <a href=\"#i-25\">MVC\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3092\u5b9f\u8df5\u3067\u7406\u89e3\u3059\u308b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-26\">\u5b9f\u88c5\u306e\u30dd\u30a4\u30f3\u30c8<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-27\">\u5b9f\u8df5\u7684\u306aRails\u958b\u767a\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-28\">scaffold\u3092\u4f7f\u3063\u305f\u7206\u901f\u958b\u767a\u306e\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-30\">\u57fa\u672c\u7684\u306aCRUD\u64cd\u4f5c\u306e\u5b9f\u88c5\u624b\u9806<\/a>      <\/li>      <li>        <a href=\"#i-35\">ActiveRecord\u3067\u5b9f\u73fe\u3059\u308b\u30c7\u30fc\u30bf\u64cd\u4f5c\u306e\u57fa\u790e<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-40\">\u5b9f\u88c5\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-41\">Rails\u30a8\u30e9\u30fc\u89e3\u6c7a\u306e\u57fa\u672c\u3068\u30c7\u30d0\u30c3\u30b0\u624b\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-42\">\u521d\u5fc3\u8005\u304c\u3076\u3064\u304b\u308a\u3084\u3059\u3044\u30a8\u30e9\u30fc\u3068\u305d\u306e\u89e3\u6c7a\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-46\">\u52b9\u7387\u7684\u306a\u30c7\u30d0\u30c3\u30b0\u30c4\u30fc\u30eb\u306e\u4f7f\u3044\u65b9<\/a>      <\/li>      <li>        <a href=\"#i-51\">\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u30d1\u30bf\u30fc\u30f3\u3068\u5bfe\u51e6\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-52\">\u30c7\u30d0\u30c3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-53\">\u3053\u308c\u304b\u3089\u306e\u30b9\u30c6\u30c3\u30d7\u30a2\u30c3\u30d7\u65b9\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-54\">\u304a\u3059\u3059\u3081\u306e\u5b66\u7fd2\u30ea\u30bd\u30fc\u30b9\u3068\u53c2\u8003\u66f8\u7c4d<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-57\">\u5b9f\u8df5\u7684\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30a2\u30a4\u30c7\u30a2\u96c6<\/a>      <\/li>    <\/ul>  <\/li><\/ul>\n      <a href=\"#\" class=\"sgb-toc-button js-toc-button\" rel=\"nofollow\" data-open-dialog=\"true\"><i class=\"fa fa-list\"><\/i><span class=\"sgb-toc-button__text\">\u76ee\u6b21\u3078<\/span><\/a>\n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">Ruby on Rails\u3068\u306f\uff1f\u73fe\u5834\u3067\u9078\u3070\u308c\u7d9a\u3051\u308b\u7406\u7531<\/h2>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-1\">Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u306e\u5e38\u8b58\u3092\u5909\u3048\u305f\u9769\u65b0\u7684\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af<\/h2>\n\n\n\n<p>Ruby on Rails\uff08\u7565\u79f0\uff1aRails\uff09\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9eRuby\u3067\u66f8\u304b\u308c\u305fWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u30022004\u5e74\u306b\u767b\u5834\u3057\u3066\u4ee5\u6765\u3001\u305d\u306e\u9769\u65b0\u7684\u306a\u958b\u767a\u624b\u6cd5\u306b\u3088\u308a\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u306e\u4e16\u754c\u306b\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>GitHub\u3084Twitter\u3001Shopify\u3001Cookpad\u306a\u3069\u3001\u79c1\u305f\u3061\u304c\u65e5\u5e38\u7684\u306b\u5229\u7528\u3059\u308b\u591a\u304f\u306eWeb\u30b5\u30fc\u30d3\u30b9\u304cRails\u3067\u958b\u767a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u7279\u306b\u3001\u30b9\u30bf\u30fc\u30c8\u30a2\u30c3\u30d7\u4f01\u696d\u304b\u3089\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u307e\u3067\u5e45\u5e83\u304f\u63a1\u7528\u3055\u308c\u3066\u3044\u308b\u7406\u7531\u306f\u3001<strong>\u958b\u767a\u52b9\u7387\u306e\u9ad8\u3055<\/strong>\u3068<strong>\u5805\u7262\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/strong>\u3092\u7d20\u65e9\u304f\u69cb\u7bc9\u3067\u304d\u308b\u70b9\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-2\">Ruby on Rails\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c83\u9078<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-3\">1. \u5727\u5012\u7684\u306a\u958b\u767a\u901f\u5ea6<\/h3>\n\n\n\n<p>Rails\u306e\u6700\u5927\u306e\u7279\u5fb4\u306f\u300cConvention over Configuration\uff08\u8a2d\u5b9a\u3088\u308a\u898f\u7d04\uff09\u300d\u3068\u3044\u3046\u601d\u60f3\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u958b\u767a\u8005\u304c\u7d30\u304b\u3044\u8a2d\u5b9a\u306b\u6642\u9593\u3092\u53d6\u3089\u308c\u308b\u3053\u3068\u306a\u304f\u3001\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306e\u5b9f\u88c5\u306b\u96c6\u4e2d\u3067\u304d\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4f8b\u3048\u3070\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30c6\u30fc\u30d6\u30eb\u540d\u3084\u30d5\u30a1\u30a4\u30eb\u306e\u914d\u7f6e\u5834\u6240\u306a\u3069\u3001\u591a\u304f\u306e\u898f\u7d04\u304c\u4e88\u3081\u5b9a\u3081\u3089\u308c\u3066\u3044\u308b\u305f\u3081\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8907\u6570\u4eba\u3067\u306e\u958b\u767a\u304c\u30b9\u30e0\u30fc\u30ba<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u304c\u9ad8\u3044<\/li>\n\n\n\n<li>\u65b0\u30e1\u30f3\u30d0\u30fc\u306e\u5b66\u7fd2\u30b3\u30b9\u30c8\u304c\u4f4e\u3044<\/li>\n<\/ul>\n\n\n\n<p>\u3068\u3044\u3046\u5229\u70b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-4\">2. \u5145\u5b9f\u3057\u305f\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0<\/h3>\n\n\n\n<p>Rails\u306b\u306f\u300cGem\u300d\u3068\u547c\u3070\u308c\u308b\u8c4a\u5bcc\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u8a8d\u8a3c\u6a5f\u80fd\u3001\u753b\u50cf\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3001\u7ba1\u7406\u753b\u9762\u306a\u3069\u3001\u3088\u304f\u4f7f\u3046\u6a5f\u80fd\u306f\u65e2\u5b58\u306eGem\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u77ed\u6642\u9593\u3067\u5b9f\u88c5\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4eba\u6c17\u306eGem\u306e\u4f8b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Devise\uff08\u8a8d\u8a3c\u6a5f\u80fd\uff09<\/li>\n\n\n\n<li>CarrierWave\uff08\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\uff09<\/li>\n\n\n\n<li>RSpec\uff08\u30c6\u30b9\u30c8\uff09<\/li>\n\n\n\n<li>Sidekiq\uff08\u975e\u540c\u671f\u51e6\u7406\uff09<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">3. \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306e\u6a19\u6e96\u88c5\u5099<\/h3>\n\n\n\n<p>Rails\u306b\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u304c\u6a19\u6e96\u3067\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>CSRF\u5bfe\u7b56<\/li>\n\n\n\n<li>SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56<\/li>\n\n\n\n<li>XSS\u5bfe\u7b56<\/li>\n\n\n\n<li>\u30de\u30b9\u30a2\u30b5\u30a4\u30f3\u30e1\u30f3\u30c8\u5bfe\u7b56<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u306b\u3088\u308a\u3001\u521d\u5fc3\u8005\u3067\u3082\u5b89\u5168\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u958b\u767a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-6\">\u73fe\u5834\u3067\u9078\u3070\u308c\u7d9a\u3051\u308b\u7406\u7531<\/h2>\n\n\n\n<p>Rails\u304c15\u5e74\u4ee5\u4e0a\u306b\u308f\u305f\u3063\u3066\u73fe\u5834\u3067\u9078\u3070\u308c\u7d9a\u3051\u3066\u3044\u308b\u7406\u7531\u306f\u3001\u4ee5\u4e0b\u306e\u70b9\u306b\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u751f\u7523\u6027\u306e\u9ad8\u3055<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u898f\u7d04\u306b\u5f93\u3046\u3053\u3068\u3067\u3001\u30c1\u30fc\u30e0\u5168\u4f53\u306e\u958b\u767a\u52b9\u7387\u304c\u5411\u4e0a<\/li>\n\n\n\n<li>\u8c4a\u5bcc\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u3088\u308b\u958b\u767a\u6642\u9593\u306e\u77ed\u7e2e<\/li>\n\n\n\n<li>\u81ea\u52d5\u30c6\u30b9\u30c8\u6a5f\u80fd\u306b\u3088\u308b\u54c1\u8cea\u62c5\u4fdd<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6d3b\u767a\u306a\u30b3\u30df\u30e5\u30cb\u30c6\u30a3<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u56f0\u3063\u305f\u3068\u304d\u306b\u53c2\u7167\u3067\u304d\u308b\u60c5\u5831\u304c\u8c4a\u5bcc<\/li>\n\n\n\n<li>\u30d0\u30b0\u4fee\u6b63\u3084\u6a5f\u80fd\u8ffd\u52a0\u304c\u8fc5\u901f<\/li>\n\n\n\n<li>\u65e5\u672c\u8a9e\u306e\u60c5\u5831\u3082\u5145\u5b9f<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5b9f\u7e3e\u306e\u3042\u308b\u6280\u8853\u30b9\u30bf\u30c3\u30af<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u591a\u304f\u306e\u4f01\u696d\u3067\u306e\u63a1\u7528\u5b9f\u7e3e<\/li>\n\n\n\n<li>\u9577\u671f\u7684\u306a\u904b\u7528\u5b9f\u7e3e<\/li>\n\n\n\n<li>\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306e\u8a3c\u660e<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u7279\u5fb4\u306b\u3088\u308a\u3001Rails\u306f\u7279\u306b\u30b9\u30bf\u30fc\u30c8\u30a2\u30c3\u30d7\u3084\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u958b\u767a\u3001\u4e2d\u898f\u6a21\u306eWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u306b\u304a\u3044\u3066\u3001\u6700\u9069\u306a\u9078\u629e\u80a2\u306e\u4e00\u3064\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-7\">Rails\u74b0\u5883\u69cb\u7bc9\u3092\u6700\u77ed\u3067\u6210\u529f\u3055\u305b\u308b\u30b3\u30c4<\/h2>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-8\">Mac\u30e6\u30fc\u30b6\u30fc\u306e\u305f\u3081\u306eRails\u74b0\u5883\u69cb\u7bc9\u30ac\u30a4\u30c9<\/h2>\n\n\n\n<p>Mac\u306fRuby on Rails\u958b\u767a\u3067\u6700\u3082\u4eba\u6c17\u306e\u9ad8\u3044\u74b0\u5883\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u624b\u9806\u3067\u78ba\u5b9f\u306b\u74b0\u5883\u3092\u69cb\u7bc9\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">1. Homebrew\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/h3>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># Homebrew\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\n\/bin\/bash -c \"$(curl -fsSL https:\/\/raw.githubusercontent.com\/Homebrew\/install\/HEAD\/install.sh)\"<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">2. rbenv\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3068Ruby\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7<\/h3>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># rbenv\u3068ruby-build\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\nbrew install rbenv ruby-build\n\n# rbenv\u306e\u521d\u671f\u5316\necho 'eval \"$(rbenv init - zsh)\"' &gt;&gt; ~\/.zshrc  # zsh\u306e\u5834\u5408\nsource ~\/.zshrc\n\n# \u6700\u65b0\u306e\u5b89\u5b9a\u7248Ruby\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\nrbenv install 3.3.0\nrbenv global 3.3.0\n\n# Ruby\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u78ba\u8a8d\nruby -v<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">3. Rails\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/h3>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u6700\u65b0\u306eRails\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\ngem install rails bundler\n\n# \u30d0\u30fc\u30b8\u30e7\u30f3\u78ba\u8a8d\nrails -v<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-12\">Windows\u30e6\u30fc\u30b6\u30fc\u306e\u305f\u3081\u306eRails\u74b0\u5883\u69cb\u7bc9\u30ac\u30a4\u30c9<\/h2>\n\n\n\n<p>Windows\u3067\u306eRails\u958b\u767a\u306b\u306f\u3001WSL2\uff08Windows Subsystem for Linux\uff09\u306e\u5229\u7528\u3092\u5f37\u304f\u63a8\u5968\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-13\">1. WSL2\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/h3>\n\n\n\n<p>PowerShell\u3092\u7ba1\u7406\u8005\u3068\u3057\u3066\u5b9f\u884c\u3057\u3001\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">wsl --install<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">2. Ubuntu\u3067\u306e\u74b0\u5883\u69cb\u7bc9<\/h3>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u30b7\u30b9\u30c6\u30e0\u306e\u66f4\u65b0\nsudo apt update\nsudo apt upgrade\n\n# \u5fc5\u8981\u306a\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\nsudo apt install -y build-essential git libssl-dev libreadline-dev zlib1g-dev\n\n# rbenv\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\ngit clone https:\/\/github.com\/rbenv\/rbenv.git ~\/.rbenv\necho 'export PATH=\"$HOME\/.rbenv\/bin:$PATH\"' &gt;&gt; ~\/.bashrc\necho 'eval \"$(rbenv init -)\"' &gt;&gt; ~\/.bashrc\nsource ~\/.bashrc\n\n# ruby-build\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\ngit clone https:\/\/github.com\/rbenv\/ruby-build.git ~\/.rbenv\/plugins\/ruby-build\n\n# Ruby\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\nrbenv install 3.3.0\nrbenv global 3.3.0<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-15\">\u3088\u304f\u3042\u308b\u74b0\u5883\u69cb\u7bc9\u306e\u30c8\u30e9\u30d6\u30eb\u3068\u89e3\u6c7a\u65b9\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">1. \u6a29\u9650\u95a2\u9023\u306e\u30a8\u30e9\u30fc<\/h3>\n\n\n\n<p>\u554f\u984c\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Permission denied while installing gems<\/pre>\n\n\n\n<p>\u89e3\u6c7a\u7b56\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># gem\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306bsudo\u3092\u4f7f\u7528\u3057\u306a\u3044\ngem install rails --user-install\n\n# \u307e\u305f\u306f\u3001\u6a29\u9650\u3092\u9069\u5207\u306b\u8a2d\u5b9a\nsudo chown -R $USER:$USER ~\/.rbenv<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">2. SSL\u8a3c\u660e\u66f8\u30a8\u30e9\u30fc<\/h3>\n\n\n\n<p>\u554f\u984c\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">SSL_connect returned=1 errno=0 state=error: certificate verify failed<\/pre>\n\n\n\n<p>\u89e3\u6c7a\u7b56\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># Mac\u306e\u5834\u5408\nbrew install curl-ca-bundle\n\n# Windows\u306e\u5834\u5408\ngem install --source http:\/\/rubygems.org rails<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-18\">3. Node.js\u3068Yarn\u306e\u4e0d\u8db3<\/h3>\n\n\n\n<p>\u591a\u304f\u306eRails\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001JavaScript\u306e\u5b9f\u884c\u74b0\u5883\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<p>Mac:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">brew install node yarn<\/pre>\n\n\n\n<p>Ubuntu\/WSL2:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">curl -fsSL https:\/\/deb.nodesource.com\/setup_lts.x | sudo -E bash -\nsudo apt install -y nodejs\nnpm install -g yarn<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-19\">\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u6210\u529f\u306e\u78ba\u8a8d\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3067\u65b0\u898f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u3001\u52d5\u4f5c\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u65b0\u898fRails\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u4f5c\u6210\nrails new myapp\ncd myapp\n\n# Webpacker\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\uff08\u5fc5\u8981\u306a\u5834\u5408\uff09\nrails webpacker:install\n\n# \u30b5\u30fc\u30d0\u30fc\u306e\u8d77\u52d5\nrails server<\/pre>\n\n\n\n<p>\u30d6\u30e9\u30a6\u30b6\u3067 <code>http:\/\/localhost:3000<\/code> \u306b\u30a2\u30af\u30bb\u30b9\u3057\u3001Rails\u306e\u30a6\u30a7\u30eb\u30ab\u30e0\u30da\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u308c\u3070\u74b0\u5883\u69cb\u7bc9\u306f\u6210\u529f\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-20\">\u74b0\u5883\u69cb\u7bc9\u6642\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u306e\u91cd\u8981\u6027<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ruby\u3001Rails\u3001Node.js\u306a\u3069\u3001\u5404\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u4e92\u63db\u6027\u3092\u78ba\u8a8d<\/li>\n\n\n\n<li>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3054\u3068\u306b\u9069\u5207\u306a\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4f7f\u7528\u3067\u304d\u308b\u3088\u3046\u6e96\u5099<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u958b\u767a\u30c4\u30fc\u30eb\u306e\u6e96\u5099<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>VS Code\u3001RubyMine\u7b49\u306eIDE\u3092\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7<\/li>\n\n\n\n<li>\u30c7\u30d0\u30c3\u30b0\u30c4\u30fc\u30eb\u306e\u5c0e\u5165\u3092\u691c\u8a0e<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u6e96\u5099<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u958b\u767a\u7528\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff08SQLite\u3001PostgreSQL\u7b49\uff09\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/li>\n\n\n\n<li>\u5fc5\u8981\u306a\u5834\u5408\u3001\u7ba1\u7406\u30c4\u30fc\u30eb\u306e\u5c0e\u5165<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-21\">\u306f\u3058\u3081\u3066\u306eRails\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-22\">\u30b7\u30f3\u30d7\u30eb\u306a\u30d6\u30ed\u30b0\u30a2\u30d7\u30ea\u3092\u4f5c\u308a\u306a\u304c\u3089\u5b66\u3076Rails\u57fa\u790e<\/h3>\n\n\n\n<p>\u307e\u305a\u306f\u3001\u65b0\u3057\u3044Rails\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u30d6\u30ed\u30b0\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u4f5c\u6210\nrails new myblog\ncd myblog\n\n# \u30b5\u30fc\u30d0\u30fc\u306e\u8d77\u52d5\nrails server<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-23\">\u8a18\u4e8b\u6295\u7a3f\u6a5f\u80fd\u306e\u5b9f\u88c5\u624b\u9806<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u8a18\u4e8b\u7528\u306e\u30e2\u30c7\u30eb\u3068\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u3092\u751f\u6210<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u8a18\u4e8b\u7528\u306e\u30e2\u30c7\u30eb\u3092\u4f5c\u6210\nrails generate model Article title:string content:text\n\n# \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u4f5c\u6210\u3068\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\nrails db:migrate\n\n# \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306e\u4f5c\u6210\nrails generate controller Articles index show new create edit update destroy<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u8a2d\u5b9a\uff08config\/routes.rb\uff09<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Rails.application.routes.draw do\n  root 'articles#index'  # \u30c8\u30c3\u30d7\u30da\u30fc\u30b8\u3092\u8a18\u4e8b\u4e00\u89a7\u306b\u8a2d\u5b9a\n  resources :articles    # \u8a18\u4e8b\u306b\u95a2\u3059\u308b\u57fa\u672c\u7684\u306a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u81ea\u52d5\u751f\u6210\nend<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li>\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306e\u5b9f\u88c5\uff08app\/controllers\/articles_controller.rb\uff09<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class ArticlesController &lt; ApplicationController\n  def index\n    @articles = Article.all  # \u5168\u3066\u306e\u8a18\u4e8b\u3092\u53d6\u5f97\n  end\n\n  def show\n    @article = Article.find(params[:id])  # \u6307\u5b9a\u3055\u308c\u305fID\u306e\u8a18\u4e8b\u3092\u53d6\u5f97\n  end\n\n  def new\n    @article = Article.new  # \u65b0\u898f\u8a18\u4e8b\u4f5c\u6210\u30d5\u30a9\u30fc\u30e0\u7528\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\n  end\n\n  def create\n    @article = Article.new(article_params)\n    if @article.save\n      redirect_to @article, notice: '\u8a18\u4e8b\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f'\n    else\n      render :new\n    end\n  end\n\n  private\n\n  def article_params\n    params.require(:article).permit(:title, :content)\n  end\nend<\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li>\u30d3\u30e5\u30fc\u306e\u4f5c\u6210\uff08app\/views\/articles\/index.html.erb\uff09<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">&lt;h1&gt;\u8a18\u4e8b\u4e00\u89a7&lt;\/h1&gt;\n\n&lt;%= link_to '\u65b0\u898f\u8a18\u4e8b\u4f5c\u6210', new_article_path, class: 'btn' %&gt;\n\n&lt;% @articles.each do |article| %&gt;\n  &lt;div class=\"article\"&gt;\n    &lt;h2&gt;&lt;%= link_to article.title, article_path(article) %&gt;&lt;\/h2&gt;\n    &lt;p&gt;&lt;%= truncate(article.content, length: 100) %&gt;&lt;\/p&gt;\n  &lt;\/div&gt;\n&lt;% end %&gt;<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-24\">\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u57fa\u672c\u6982\u5ff5\u3092Rails\u3067\u7406\u89e3\u3059\u308b<\/h3>\n\n\n\n<p>Rails\u3067\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u64cd\u4f5c\u3092\u7c21\u5358\u306b\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u4e3b\u8981\u306a\u6982\u5ff5\u3067\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u69cb\u9020\u3092\u5909\u66f4\u3059\u308b\u305f\u3081\u306e\u3057\u304f\u307f<\/li>\n\n\n\n<li>\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u3055\u308c\u3066\u304a\u308a\u3001\u30c1\u30fc\u30e0\u958b\u767a\u3067\u4fbf\u5229<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\u306e\u4f8b\uff08db\/migrate\/YYYYMMDDHHMMSS_create_articles.rb\uff09\nclass CreateArticles &lt; ActiveRecord::Migration[7.0]\n  def change\n    create_table :articles do |t|\n      t.string :title\n      t.text :content\n      t.timestamps  # created_at, updated_at\u30ab\u30e9\u30e0\u3092\u81ea\u52d5\u4f5c\u6210\n    end\n  end\nend<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30e2\u30c7\u30eb\u306e\u95a2\u9023\u4ed8\u3051<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># app\/models\/article.rb\nclass Article &lt; ApplicationRecord\n  validates :title, presence: true\n  validates :content, presence: true, length: { minimum: 10 }\nend<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u64cd\u4f5c<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u30ec\u30b3\u30fc\u30c9\u306e\u4f5c\u6210\narticle = Article.create(title: '\u521d\u3081\u3066\u306e\u6295\u7a3f', content: '\u3053\u3093\u306b\u3061\u306f\uff01')\n\n# \u30ec\u30b3\u30fc\u30c9\u306e\u691c\u7d22\nArticle.find(1)                  # ID\u6307\u5b9a\u3067\u306e\u691c\u7d22\nArticle.where(title: '\u521d\u3081\u3066\u306e\u6295\u7a3f')  # \u6761\u4ef6\u6307\u5b9a\u3067\u306e\u691c\u7d22\nArticle.first                    # \u6700\u521d\u306e\u30ec\u30b3\u30fc\u30c9\nArticle.last                     # \u6700\u5f8c\u306e\u30ec\u30b3\u30fc\u30c9<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-25\">MVC\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3092\u5b9f\u8df5\u3067\u7406\u89e3\u3059\u308b<\/h3>\n\n\n\n<p>MVC\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u4ee5\u4e0b\u306e3\u3064\u306e\u5f79\u5272\u306b\u5206\u3051\u3066\u8a2d\u8a08\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Model\uff08\u30e2\u30c7\u30eb\uff09<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3068\u306e\u5bfe\u8a71<\/li>\n\n\n\n<li>\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306e\u5b9f\u88c5<\/li>\n\n\n\n<li>\u30c7\u30fc\u30bf\u306e\u691c\u8a3c<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># app\/models\/article.rb\nclass Article &lt; ApplicationRecord\n  # \u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\n  validates :title, presence: true\n  validates :content, presence: true\n\n  # \u30b9\u30b3\u30fc\u30d7\u306e\u5b9a\u7fa9\n  scope :recent, -&gt; { order(created_at: :desc) }\n\n  # \u30ab\u30b9\u30bf\u30e0\u30e1\u30bd\u30c3\u30c9\n  def summary\n    content.truncate(100)\n  end\nend<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>View\uff08\u30d3\u30e5\u30fc\uff09<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e6\u30fc\u30b6\u30fc\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u5b9f\u88c5<\/li>\n\n\n\n<li>\u30c7\u30fc\u30bf\u306e\u8868\u793a\u5f62\u5f0f\u306e\u5b9a\u7fa9<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">&lt;!-- app\/views\/articles\/show.html.erb --&gt;\n&lt;div class=\"article-detail\"&gt;\n  &lt;h1&gt;&lt;%= @article.title %&gt;&lt;\/h1&gt;\n  &lt;div class=\"meta\"&gt;\n    \u6295\u7a3f\u65e5: &lt;%= @article.created_at.strftime('%Y\/%m\/%d') %&gt;\n  &lt;\/div&gt;\n  &lt;div class=\"content\"&gt;\n    &lt;%= simple_format @article.content %&gt;\n  &lt;\/div&gt;\n  &lt;%= link_to '\u7de8\u96c6', edit_article_path(@article) %&gt; |\n  &lt;%= link_to '\u623b\u308b', articles_path %&gt;\n&lt;\/div&gt;<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>Controller\uff08\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\uff09<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u51e6\u7406<\/li>\n\n\n\n<li>\u30e2\u30c7\u30eb\u3068\u30d3\u30e5\u30fc\u306e\u9023\u643a<\/li>\n\n\n\n<li>\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306e\u8abf\u6574<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># app\/controllers\/articles_controller.rb\nclass ArticlesController &lt; ApplicationController\n  def index\n    @articles = Article.recent.page(params[:page])\n  end\n\n  def show\n    @article = Article.find(params[:id])\n  rescue ActiveRecord::RecordNotFound\n    redirect_to articles_path, alert: '\u8a18\u4e8b\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093'\n  end\nend<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-26\">\u5b9f\u88c5\u306e\u30dd\u30a4\u30f3\u30c8<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>RESTful\u306a\u8a2d\u8a08<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>resources\u3092\u4f7f\u7528\u3057\u305f\u6a19\u6e96\u7684\u306a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0<\/li>\n\n\n\n<li>HTTP\u30e1\u30bd\u30c3\u30c9\u306e\u9069\u5207\u306a\u4f7f\u7528<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Strong Parameters\u306e\u4f7f\u7528<\/li>\n\n\n\n<li>CSRF\u5bfe\u7b56\u306e\u5b9f\u88c5<\/li>\n\n\n\n<li>\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u306e\u8a2d\u5b9a<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u52b9\u7387\u7684\u306a\u958b\u767a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d1\u30fc\u30b7\u30e3\u30eb\u3092\u4f7f\u7528\u3057\u305f\u30d3\u30e5\u30fc\u306e\u5206\u5272<\/li>\n\n\n\n<li>\u5171\u901a\u51e6\u7406\u306e\u307e\u3068\u3081\u65b9<\/li>\n\n\n\n<li>\u9069\u5207\u306aGem\u306e\u9078\u629e<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-27\">\u5b9f\u8df5\u7684\u306aRails\u958b\u767a\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-28\">scaffold\u3092\u4f7f\u3063\u305f\u7206\u901f\u958b\u767a\u306e\u65b9\u6cd5<\/h3>\n\n\n\n<p>scaffold\u306f\u3001CRUD\u64cd\u4f5c\u306b\u5fc5\u8981\u306a\u4e00\u9023\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u81ea\u52d5\u751f\u6210\u3059\u308b\u5f37\u529b\u306a\u6a5f\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u57fa\u672c\u7684\u306ascaffold\u306e\u4f7f\u7528\u65b9\u6cd5\nrails generate scaffold Product name:string description:text price:decimal stock:integer<\/pre>\n\n\n\n<p>\u751f\u6210\u3055\u308c\u308b\u30d5\u30a1\u30a4\u30eb\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb<\/li>\n\n\n\n<li>\u30e2\u30c7\u30eb<\/li>\n\n\n\n<li>\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc<\/li>\n\n\n\n<li>\u30d3\u30e5\u30fc\uff08index, show, new, edit\uff09<\/li>\n\n\n\n<li>\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u30d5\u30a1\u30a4\u30eb<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-29\">scaffold\u306e\u30ab\u30b9\u30bf\u30de\u30a4\u30ba<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3057\u305fscaffold\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e\u4f5c\u6210\nrails generate scaffold Product \\\n  name:string:index \\\n  description:text \\\n  price:decimal{10,2} \\\n  --parent=Category \\\n  --no-test-framework<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-30\">\u57fa\u672c\u7684\u306aCRUD\u64cd\u4f5c\u306e\u5b9f\u88c5\u624b\u9806<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-31\">Create\uff08\u4f5c\u6210\uff09\u64cd\u4f5c<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\uff08app\/controllers\/products_controller.rb\uff09\ndef create\n  @product = Product.new(product_params)\n\n  if @product.save\n    flash[:success] = '\u5546\u54c1\u3092\u767b\u9332\u3057\u307e\u3057\u305f'\n    redirect_to @product\n  else\n    render :new\n  end\nend\n\nprivate\n\ndef product_params\n  params.require(:product).permit(:name, :description, :price)\nend<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-32\">Read\uff08\u8aad\u307f\u53d6\u308a\uff09\u64cd\u4f5c<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u4e00\u89a7\u8868\u793a\uff08index\uff09\ndef index\n  @products = Product.order(created_at: :desc).page(params[:page])\nend\n\n# \u8a73\u7d30\u8868\u793a\uff08show\uff09\ndef show\n  @product = Product.find(params[:id])\nend<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-33\">Update\uff08\u66f4\u65b0\uff09\u64cd\u4f5c<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">def update\n  if @product.update(product_params)\n    flash[:success] = '\u5546\u54c1\u60c5\u5831\u3092\u66f4\u65b0\u3057\u307e\u3057\u305f'\n    redirect_to @product\n  else\n    render :edit\n  end\nend<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-34\">Delete\uff08\u524a\u9664\uff09\u64cd\u4f5c<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">def destroy\n  @product.destroy\n  flash[:success] = '\u5546\u54c1\u3092\u524a\u9664\u3057\u307e\u3057\u305f'\n  redirect_to products_url\nend<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-35\">ActiveRecord\u3067\u5b9f\u73fe\u3059\u308b\u30c7\u30fc\u30bf\u64cd\u4f5c\u306e\u57fa\u790e<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-36\">1. \u691c\u7d22\u3068\u7d5e\u308a\u8fbc\u307f<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u57fa\u672c\u7684\u306a\u691c\u7d22\nProduct.where(category_id: 1)\nProduct.where('price &gt; ?', 1000)\n\n# \u8907\u96d1\u306a\u6761\u4ef6\nProduct.where(category_id: 1)\n      .where.not(stock: 0)\n      .order(created_at: :desc)\n\n# \u30b9\u30b3\u30fc\u30d7\u306e\u5b9a\u7fa9\nclass Product &lt; ApplicationRecord\n  scope :in_stock, -&gt; { where('stock &gt; 0') }\n  scope :price_range, -&gt;(min, max) { where(price: min..max) }\nend<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-37\">2. \u30a2\u30bd\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3\uff08\u95a2\u9023\u4ed8\u3051\uff09<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Product &lt; ApplicationRecord\n  belongs_to :category\n  has_many :order_items\n  has_many :orders, through: :order_items\n  has_one :price_history\n\n  # \u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\n  validates :name, presence: true\n  validates :price, numericality: { greater_than: 0 }\nend<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-38\">3. \u30b3\u30fc\u30eb\u30d0\u30c3\u30af<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Product &lt; ApplicationRecord\n  before_save :normalize_name\n  after_create :notify_admin\n\n  private\n\n  def normalize_name\n    self.name = name.strip.titleize\n  end\n\n  def notify_admin\n    AdminMailer.new_product_notification(self).deliver_later\n  end\nend<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-39\">4. \u9ad8\u5ea6\u306a\u30af\u30a8\u30ea<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u96c6\u8a08\u3068\u30b0\u30eb\u30fc\u30d7\u5316\nProduct.group(:category_id).count\nProduct.group(:category_id).sum(:price)\n\n# \u7d50\u5408\nProduct.joins(:category)\n       .select('products.*, categories.name as category_name')\n       .where(categories: { active: true })\n\n# \u30d7\u30ea\u30ed\u30fc\u30c9\uff08N+1\u554f\u984c\u306e\u89e3\u6c7a\uff09\n@products = Product.includes(:category, :price_history)<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-40\">\u5b9f\u88c5\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Fat Model\u3068Skinny Controller<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306f\u30e2\u30c7\u30eb\u306b<\/li>\n\n\n\n<li>\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306f\u30ea\u30af\u30a8\u30b9\u30c8\u51e6\u7406\u306b\u96c6\u4e2d<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b5\u30fc\u30d3\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6d3b\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># app\/services\/product_creation_service.rb\nclass ProductCreationService\n  def initialize(params)\n    @params = params\n  end\n\n  def call\n    product = Product.new(@params)\n    if product.save\n      notify_stakeholders(product)\n      true\n    else\n      false\n    end\n  end\n\n  private\n\n  def notify_stakeholders(product)\n    AdminMailer.new_product_notification(product).deliver_later\n    SlackNotifier.notify(\"#products\", \"\u65b0\u5546\u54c1\u304c\u767b\u9332\u3055\u308c\u307e\u3057\u305f: #{product.name}\")\n  end\nend<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30af\u30a8\u30ea\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4f7f\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># app\/queries\/available_products_query.rb\nclass AvailableProductsQuery\n  def initialize(relation = Product.all)\n    @relation = relation\n  end\n\n  def call\n    @relation.where('stock &gt; 0')\n             .where(active: true)\n             .order(created_at: :desc)\n  end\nend<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-41\">Rails\u30a8\u30e9\u30fc\u89e3\u6c7a\u306e\u57fa\u672c\u3068\u30c7\u30d0\u30c3\u30b0\u624b\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-42\">\u521d\u5fc3\u8005\u304c\u3076\u3064\u304b\u308a\u3084\u3059\u3044\u30a8\u30e9\u30fc\u3068\u305d\u306e\u89e3\u6c7a\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-43\">1. \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30a8\u30e9\u30fc<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">No route matches [GET] \"\/products\"<\/pre>\n\n\n\n<p>\u89e3\u6c7a\u65b9\u6cd5:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># config\/routes.rb\nRails.application.routes.draw do\n  resources :products  # \u8ffd\u52a0\nend<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-44\">2. \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a8\u30e9\u30fc<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">ActiveRecord::PendingMigrationError<\/pre>\n\n\n\n<p>\u89e3\u6c7a\u65b9\u6cd5:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u884c\nrails db:migrate\n\n# \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30ea\u30bb\u30c3\u30c8\uff08\u958b\u767a\u74b0\u5883\u306e\u307f\uff09\nrails db:reset<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-45\">3. gem\u306e\u4f9d\u5b58\u95a2\u4fc2\u30a8\u30e9\u30fc<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Bundler could not find compatible versions for gem<\/pre>\n\n\n\n<p>\u89e3\u6c7a\u65b9\u6cd5:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># Gemfile\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\nbundle update\n\n# \u7279\u5b9a\u306egem\u306e\u307f\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\nbundle update [gem\u540d]<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-46\">\u52b9\u7387\u7684\u306a\u30c7\u30d0\u30c3\u30b0\u30c4\u30fc\u30eb\u306e\u4f7f\u3044\u65b9<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-47\">1. byebug\u306e\u6d3b\u7528<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># Gemfile\u306b\u8ffd\u52a0\ngem 'byebug', group: [:development, :test]\n\n# \u30b3\u30fc\u30c9\u5185\u3067\u306e\u4f7f\u7528\ndef show\n  byebug  # \u3053\u3053\u3067\u30b3\u30fc\u30c9\u304c\u4e00\u6642\u505c\u6b62\n  @product = Product.find(params[:id])\nend<\/pre>\n\n\n\n<p>\u30c7\u30d0\u30c3\u30b0\u30b3\u30f3\u30bd\u30fc\u30eb\u3067\u3067\u304d\u308b\u3053\u3068:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5909\u6570\u306e\u4e2d\u8eab\u306e\u78ba\u8a8d<\/li>\n\n\n\n<li>\u30e1\u30bd\u30c3\u30c9\u306e\u5b9f\u884c<\/li>\n\n\n\n<li>\u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\u306e\u78ba\u8a8d<\/li>\n\n\n\n<li>\u30b9\u30c6\u30c3\u30d7\u5b9f\u884c<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-48\">2. Rails Console\u306e\u6d3b\u7528<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u958b\u767a\u74b0\u5883\u3067\u306e\u8d77\u52d5\nrails console\n\n# \u30c6\u30b9\u30c8\u74b0\u5883\u3067\u306e\u8d77\u52d5\nrails console -e test<\/pre>\n\n\n\n<p>\u4fbf\u5229\u306a\u30b3\u30de\u30f3\u30c9:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u8a73\u7d30\u60c5\u5831\u8868\u793a\nproduct = Product.first\nproduct.inspect\n\n# SQL\u30af\u30a8\u30ea\u306e\u78ba\u8a8d\nProduct.where(active: true).to_sql\n\n# \u30ea\u30ed\u30fc\u30c9\nreload!<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-49\">3. \u30ed\u30b0\u306e\u6d3b\u7528<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># config\/environments\/development.rb\nconfig.log_level = :debug\n\n# \u30ed\u30b0\u306e\u51fa\u529b\nRails.logger.debug \"\u30c7\u30d0\u30c3\u30b0\u60c5\u5831: #{@variable}\"\nRails.logger.info \"\u60c5\u5831: #{@variable}\"\nRails.logger.error \"\u30a8\u30e9\u30fc: #{@variable}\"<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-50\">4. better_errors\u306e\u5c0e\u5165<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># Gemfile\ngroup :development do\n  gem 'better_errors'\n  gem 'binding_of_caller'\nend<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-51\">\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u30d1\u30bf\u30fc\u30f3\u3068\u5bfe\u51e6\u6cd5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>N+1\u30af\u30a8\u30ea\u554f\u984c<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u554f\u984c\u306e\u3042\u308b\u30b3\u30fc\u30c9\n@posts.each do |post|\n  puts post.user.name  # \u5404\u6295\u7a3f\u3054\u3068\u306bSQL\u30af\u30a8\u30ea\u304c\u767a\u884c\u3055\u308c\u308b\nend\n\n# \u6539\u5584\u5f8c\u306e\u30b3\u30fc\u30c9\n@posts = Post.includes(:user)\n@posts.each do |post|\n  puts post.user.name  # \u8ffd\u52a0\u306eSQL\u30af\u30a8\u30ea\u306f\u767a\u751f\u3057\u306a\u3044\nend<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30e1\u30e2\u30ea\u30ea\u30fc\u30af<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u554f\u984c\u306e\u3042\u308b\u30b3\u30fc\u30c9\nclass Product\n  def self.cached_products\n    @products ||= Product.all.to_a  # \u30e1\u30e2\u30ea\u306b\u6c38\u7d9a\u7684\u306b\u4fdd\u6301\u3055\u308c\u308b\n  end\nend\n\n# \u6539\u5584\u5f8c\u306e\u30b3\u30fc\u30c9\nclass Product\n  def self.cached_products\n    Rails.cache.fetch('products', expires_in: 1.hour) do\n      Product.all.to_a\n    end\n  end\nend<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u95a2\u9023\u306e\u30a8\u30e9\u30fc<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u554f\u984c\u306e\u3042\u308b\u30b3\u30fc\u30c9\uff08SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u8106\u5f31\u6027\uff09\nUser.where(\"name = '#{params[:name]}'\")\n\n# \u6539\u5584\u5f8c\u306e\u30b3\u30fc\u30c9\nUser.where(name: params[:name])<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-52\">\u30c7\u30d0\u30c3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6bb5\u968e\u7684\u306a\u30c7\u30d0\u30c3\u30b0<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u6ce8\u610f\u6df1\u304f\u8aad\u3080<\/li>\n\n\n\n<li>\u30ed\u30b0\u3092\u78ba\u8a8d\u3059\u308b<\/li>\n\n\n\n<li>\u554f\u984c\u7b87\u6240\u3092\u7279\u5b9a\u3059\u308b<\/li>\n\n\n\n<li>\u4eee\u8aac\u3092\u7acb\u3066\u3066\u691c\u8a3c\u3059\u308b<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c6\u30b9\u30c8\u99c6\u52d5\u30c7\u30d0\u30c3\u30b0<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># spec\/models\/product_spec.rb\nrequire 'rails_helper'\n\nRSpec.describe Product, type: :model do\n  describe '#calculate_price' do\n    it 'correctly calculates the price with tax' do\n      product = Product.new(price: 1000)\n      expect(product.calculate_price).to eq 1100\n    end\n  end\nend<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30c7\u30d0\u30c3\u30b0\u60c5\u5831\u306e\u7ba1\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># config\/initializers\/debug_tools.rb\nif Rails.env.development?\n  # \u30c7\u30d0\u30c3\u30b0\u30c4\u30fc\u30eb\u306e\u8a2d\u5b9a\n  Rack::MiniProfiler.config.position = 'right'\n  Rack::MiniProfiler.config.start_hidden = true\nend<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-53\">\u3053\u308c\u304b\u3089\u306e\u30b9\u30c6\u30c3\u30d7\u30a2\u30c3\u30d7\u65b9\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-54\">\u304a\u3059\u3059\u3081\u306e\u5b66\u7fd2\u30ea\u30bd\u30fc\u30b9\u3068\u53c2\u8003\u66f8\u7c4d<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-55\">1. \u30aa\u30f3\u30e9\u30a4\u30f3\u5b66\u7fd2\u30ea\u30bd\u30fc\u30b9<\/h4>\n\n\n\n<p><strong>\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ruby on Rails Guides\uff08\u516c\u5f0f\u30ac\u30a4\u30c9\uff09<\/li>\n\n\n\n<li>\u57fa\u672c\u304b\u3089\u5fdc\u7528\u307e\u3067\u4f53\u7cfb\u7684\u306b\u5b66\u3079\u308b<\/li>\n\n\n\n<li>\u5b9f\u4f8b\u304c\u8c4a\u5bcc\u3067\u5b9f\u8df5\u7684<\/li>\n\n\n\n<li>\u5b9a\u671f\u7684\u306b\u66f4\u65b0\u3055\u308c\u308b\u6700\u65b0\u306e\u60c5\u5831<\/li>\n<\/ul>\n\n\n\n<p><strong>\u30aa\u30f3\u30e9\u30a4\u30f3\u30b3\u30fc\u30b9<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Progate<\/li>\n\n\n\n<li>\u65e5\u672c\u8a9e\u3067\u5b66\u3079\u308b<\/li>\n\n\n\n<li>\u30a4\u30f3\u30bf\u30e9\u30af\u30c6\u30a3\u30d6\u306a\u5b66\u7fd2\u74b0\u5883<\/li>\n\n\n\n<li>\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u3067\u6bb5\u968e\u7684\u306b\u5b66\u7fd2\u53ef\u80fd<\/li>\n\n\n\n<li>Udemy<\/li>\n\n\n\n<li>\u5b9f\u8df5\u7684\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30d9\u30fc\u30b9\u306e\u5b66\u7fd2<\/li>\n\n\n\n<li>\u73fe\u5f79\u30a8\u30f3\u30b8\u30cb\u30a2\u306b\u3088\u308b\u89e3\u8aac<\/li>\n\n\n\n<li>\u8cea\u7591\u5fdc\u7b54\u304c\u53ef\u80fd<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-56\">2. \u63a8\u5968\u66f8\u7c4d<\/h4>\n\n\n\n<p><strong>\u521d\u7d1a\u8005\u5411\u3051<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u300cRuby on Rails 7\u5b9f\u8df5\u30ac\u30a4\u30c9\u300d<\/li>\n\n\n\n<li>\u57fa\u790e\u304b\u3089\u5b9f\u8df5\u307e\u3067\u7db2\u7f85<\/li>\n\n\n\n<li>\u8c4a\u5bcc\u306a\u30b3\u30fc\u30c9\u4f8b<\/li>\n\n\n\n<li>\u5b9f\u969b\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u624b\u9806<\/li>\n<\/ul>\n\n\n\n<p><strong>\u4e2d\u7d1a\u8005\u5411\u3051<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u300c\u30d1\u30fc\u30d5\u30a7\u30af\u30c8Ruby on Rails\u300d<\/li>\n\n\n\n<li>\u6df1\u3044\u6280\u8853\u7684\u89e3\u8aac<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0<\/li>\n\n\n\n<li>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56<\/li>\n<\/ul>\n\n\n\n<p><strong>\u4e0a\u7d1a\u8005\u5411\u3051<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u300c\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0Ruby\u300d<\/li>\n\n\n\n<li>Ruby\u306e\u9ad8\u5ea6\u306a\u6a5f\u80fd<\/li>\n\n\n\n<li>DSL\u306e\u4f5c\u6210\u65b9\u6cd5<\/li>\n\n\n\n<li>\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u5185\u90e8\u69cb\u9020<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-57\">\u5b9f\u8df5\u7684\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30a2\u30a4\u30c7\u30a2\u96c6<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-58\">1. \u57fa\u790e\u529b\u5411\u4e0a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8<\/h4>\n\n\n\n<p><strong>\u30d6\u30ed\u30b0\u30b7\u30b9\u30c6\u30e0\uff08\u521d\u7d1a\uff09<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8a18\u4e8b\u306eCRUD\u64cd\u4f5c<\/li>\n\n\n\n<li>\u30ab\u30c6\u30b4\u30ea\u7ba1\u7406<\/li>\n\n\n\n<li>\u30b3\u30e1\u30f3\u30c8\u6a5f\u80fd<\/li>\n\n\n\n<li>\u753b\u50cf\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9<\/li>\n<\/ul>\n\n\n\n<p><strong>\u30bf\u30b9\u30af\u7ba1\u7406\u30a2\u30d7\u30ea\uff08\u4e2d\u7d1a\uff09<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c<\/li>\n\n\n\n<li>\u30bf\u30b9\u30af\u306e\u671f\u9650\u7ba1\u7406<\/li>\n\n\n\n<li>\u30ab\u30c6\u30b4\u30ea\u5206\u985e<\/li>\n\n\n\n<li>\u512a\u5148\u9806\u4f4d\u4ed8\u3051<\/li>\n\n\n\n<li>\u30e1\u30fc\u30eb\u901a\u77e5<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-59\">2. \u5b9f\u8df5\u7684\u30d7\u30ed\u30b8\u30a7\u30af\u30c8<\/h4>\n\n\n\n<p><strong>EC\u30b5\u30a4\u30c8\uff08\u4e0a\u7d1a\uff09<\/strong><br>\u5b9f\u88c5\u6a5f\u80fd\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5546\u54c1\u7ba1\u7406<\/li>\n\n\n\n<li>\u30b7\u30e7\u30c3\u30d4\u30f3\u30b0\u30ab\u30fc\u30c8<\/li>\n\n\n\n<li>\u6c7a\u6e08\u51e6\u7406<\/li>\n\n\n\n<li>\u5728\u5eab\u7ba1\u7406<\/li>\n\n\n\n<li>\u6ce8\u6587\u5c65\u6b74<\/li>\n\n\n\n<li>\u30ec\u30d3\u30e5\u30fc\u30b7\u30b9\u30c6\u30e0<\/li>\n<\/ul>\n\n\n\n<p><strong>SNS\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\uff08\u4e0a\u7d1a\uff09<\/strong><br>\u5b9f\u88c5\u6a5f\u80fd\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e6\u30fc\u30b6\u30fc\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb<\/li>\n\n\n\n<li>\u30d5\u30a9\u30ed\u30fc\u6a5f\u80fd<\/li>\n\n\n\n<li>\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3<\/li>\n\n\n\n<li>\u3044\u3044\u306d\u6a5f\u80fd<\/li>\n\n\n\n<li>\u30c0\u30a4\u30ec\u30af\u30c8\u30e1\u30c3\u30bb\u30fc\u30b8<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-60\">3. \u6280\u8853\u529b\u5411\u4e0a\u306e\u305f\u3081\u306e\u30c1\u30e3\u30ec\u30f3\u30b8<\/h4>\n\n\n\n<p><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>N+1\u30af\u30a8\u30ea\u306e\u89e3\u6d88<\/li>\n\n\n\n<li>\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u5b9f\u88c5<\/li>\n\n\n\n<li>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; in \/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/ &#8230; 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