{"id":1530,"date":"2025-03-24T08:50:29","date_gmt":"2025-03-23T23:50:29","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=1530"},"modified":"2025-03-24T08:50:29","modified_gmt":"2025-03-23T23:50:29","slug":"ruby%e3%81%aeunless%e3%82%92%e5%ae%8c%e5%85%a8%e3%83%9e%e3%82%b9%e3%82%bf%e3%83%bc%ef%bc%815%e3%81%a4%e3%81%ae%e9%87%8d%e8%a6%81%e3%83%9d%e3%82%a4%e3%83%b3%e3%83%88%e3%81%a8%e3%82%a2%e3%83%b3%e3%83%81","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=1530","title":{"rendered":"Ruby\u306eunless\u3092\u5b8c\u5168\u30de\u30b9\u30bf\u30fc\uff015\u3064\u306e\u91cd\u8981\u30dd\u30a4\u30f3\u30c8\u3068\u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3"},"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\">unless\u3068\u306f\uff1fRuby\u306e\u6761\u4ef6\u5206\u5c90\u3092\u7406\u89e3\u3057\u3088\u3046<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">unless\u306fif\u306e\u9006\u306e\u52d5\u4f5c\u3092\u3059\u308b\u6761\u4ef6\u5206\u5c90<\/a>      <\/li>      <li>        <a href=\"#i-2\">\u306a\u305cRuby\u306bunless\u304c\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u306e\u304b<\/a>      <\/li>      <li>        <a href=\"#i-3\">unless\u306fif\u306e\u9006\u306e\u52d5\u4f5c\u3092\u3059\u308b\u6761\u4ef6\u5206\u5c90<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-4\">\u306a\u305cRuby\u306bunless\u304c\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u306e\u304b<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-5\">unless\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u3068\u6587\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-6\">unless\u6587\u306e\u57fa\u672c\u69cb\u6587\u3092\u7406\u89e3\u3059\u308b<\/a>      <\/li>      <li>        <a href=\"#i-7\">\u5f8c\u7f6eunless\u30671\u884c\u3067\u66f8\u304f\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-8\">else\u53e5\u306e\u4f7f\u7528\u65b9\u6cd5\u3068\u6ce8\u610f\u70b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-9\">if\u3068unless\u306e\u4f7f\u3044\u5206\u3051\u65b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-10\">\u5426\u5b9a\u306e\u6761\u4ef6\u3067unless\u3092\u4f7f\u3046\u3079\u304d\u7406\u7531<\/a>      <\/li>      <li>        <a href=\"#i-11\">\u53ef\u8aad\u6027\u3092\u9ad8\u3081\u308b\u305f\u3081\u306e\u9078\u629e\u57fa\u6e96<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-12\">\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306e\u4f7f\u7528\u4f8b<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-13\">unless\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e5\u3064\u306e\u91cd\u8981\u30dd\u30a4\u30f3\u30c8<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-14\">\u8907\u96d1\u306a\u6761\u4ef6\u306f\u907f\u3051\u308b<\/a>      <\/li>      <li>        <a href=\"#i-15\">else\u53e5\u306e\u4f7f\u7528\u306f\u6700\u5c0f\u9650\u306b<\/a>      <\/li>      <li>        <a href=\"#i-16\">\u30cd\u30b9\u30c8\u306f\u907f\u3051\u308b<\/a>      <\/li>      <li>        <a href=\"#i-17\">\u771f\u507d\u5024\u3092\u76f4\u63a5\u4f7f\u7528\u3059\u308b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-18\">\u30e1\u30bd\u30c3\u30c9\u540d\u306f\u80af\u5b9a\u5f62\u3092\u4f7f\u7528\u3059\u308b<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-19\">\u3088\u304f\u3042\u308bunless\u306e\u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3\u3068\u5bfe\u51e6\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-20\">\u8907\u6570\u306e\u6761\u4ef6\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u5834\u5408\u306e\u554f\u984c<\/a>      <\/li>      <li>        <a href=\"#i-21\">else\u3092\u591a\u7528\u3057\u305f\u30b3\u30fc\u30c9\u306e\u6539\u5584\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-22\">\u5426\u5b9a\u306e\u30e1\u30bd\u30c3\u30c9\u3068unless\u306e\u7d44\u307f\u5408\u308f\u305b<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-23\">\u5b9f\u8df5\u7684\u306aunless\u306e\u4f7f\u7528\u4f8b\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-24\">ActiveRecord\u3067\u306e\u6d3b\u7528\u4f8b<\/a>      <\/li>      <li>        <a href=\"#i-25\">\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u4f7f\u7528\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-26\">\u6761\u4ef6\u5206\u5c90\u3092\u30b7\u30f3\u30d7\u30eb\u306b\u4fdd\u3064\u30c6\u30af\u30cb\u30c3\u30af<\/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\">unless\u3068\u306f\uff1fRuby\u306e\u6761\u4ef6\u5206\u5c90\u3092\u7406\u89e3\u3057\u3088\u3046<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">unless\u306fif\u306e\u9006\u306e\u52d5\u4f5c\u3092\u3059\u308b\u6761\u4ef6\u5206\u5c90<\/h3>\n\n\n\n<p>Ruby\u306eunless\u306f\u3001\u6761\u4ef6\u304c\u507d\uff08false\uff09\u306e\u5834\u5408\u306b\u30b3\u30fc\u30c9\u30d6\u30ed\u30c3\u30af\u3092\u5b9f\u884c\u3059\u308b\u5236\u5fa1\u69cb\u9020\u3067\u3059\u3002\u8a00\u3044\u63db\u3048\u308c\u3070\u3001if\u306e\u9006\u306e\u52d5\u4f5c\u3092\u884c\u3046\u6761\u4ef6\u5206\u5c90\u6587\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u4f8b\u3067\u5177\u4f53\u7684\u306b\u898b\u3066\u307f\u307e\u3057\u3087\u3046\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=\"\"># if\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\nif !user.admin?\n  puts \"\u7ba1\u7406\u8005\u6a29\u9650\u304c\u3042\u308a\u307e\u305b\u3093\"\nend\n\n# unless\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\nunless user.admin?\n  puts \"\u7ba1\u7406\u8005\u6a29\u9650\u304c\u3042\u308a\u307e\u305b\u3093\"\nend<\/pre>\n\n\n\n<p>\u3053\u306e2\u3064\u306e\u30b3\u30fc\u30c9\u306f\u5168\u304f\u540c\u3058\u52d5\u4f5c\u3092\u3057\u307e\u3059\u304c\u3001unless\u3092\u4f7f\u7528\u3057\u305f\u65b9\u304c\u300c\u7ba1\u7406\u8005\u6a29\u9650\u304c\u306a\u3044\u5834\u5408\u300d\u3068\u3044\u3046\u6761\u4ef6\u3092\u3088\u308a\u81ea\u7136\u306b\u8868\u73fe\u3067\u304d\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">\u306a\u305cRuby\u306bunless\u304c\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u306e\u304b<\/h3>\n\n\n\n<p>Ruby\u306bunless\u304c\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u7406\u7531\u306f\u3001\u4ee5\u4e0b\u306e3\u3064\u306e\u91cd\u8981\u306a\u8a2d\u8a08\u601d\u60f3\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u53ef\u8aad\u6027\u306e\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5426\u5b9a\u306e\u6761\u4ef6\u3092\u6271\u3046\u5834\u5408\u3001unless\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u8ad6\u7406\u7684\u306a\u610f\u56f3\u304c\u3088\u308a\u660e\u78ba\u306b\u306a\u308a\u307e\u3059<\/li>\n\n\n\n<li>\u4e8c\u91cd\u5426\u5b9a\u3092\u907f\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u30b3\u30fc\u30c9\u306e\u7406\u89e3\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Ruby\u3089\u3057\u3044\u8868\u73fe\u529b<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ruby\u306f\u4eba\u9593\u306b\u3068\u3063\u3066\u81ea\u7136\u306a\u8868\u73fe\u3092\u91cd\u8996\u3059\u308b\u8a00\u8a9e\u8a2d\u8a08\u3092\u6301\u3063\u3066\u3044\u307e\u3059<\/li>\n\n\n\n<li>unless\u306f\u82f1\u8a9e\u306e\u300c\u301c\u3067\u306a\u3044\u5834\u5408\u300d\u3068\u3044\u3046\u8868\u73fe\u306b\u8fd1\u304f\u3001\u30b3\u30fc\u30c9\u3092\u81ea\u7136\u8a00\u8a9e\u306b\u8fd1\u3044\u5f62\u3067\u66f8\u3051\u307e\u3059<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b7\u30f3\u30d7\u30eb\u3067\u7f8e\u3057\u3044\u30b3\u30fc\u30c9<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5426\u5b9a\u306e\u6761\u4ef6\u3092\u3088\u308a\u7c21\u6f54\u306b\u8868\u73fe\u3067\u304d\u307e\u3059<\/li>\n\n\n\n<li>\u7279\u306b\u5f8c\u7f6eunless\uff08\u4fee\u98fe\u5b50\u5f62\u5f0f\uff09\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u30011\u884c\u3067\u7c21\u6f54\u306a\u6761\u4ef6\u5206\u5c90\u3092\u66f8\u3051\u307e\u3059<\/li>\n<\/ul>\n\n\n\n<p>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u306e\u9055\u3044\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\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=\"\"># \u4e00\u822c\u7684\u306a\u5426\u5b9a\u6761\u4ef6\uff08if\uff09\nif !file.exists?\n  puts \"\u30d5\u30a1\u30a4\u30eb\u304c\u5b58\u5728\u3057\u307e\u305b\u3093\"\nend\n\n# unless\u3092\u4f7f\u7528\nunless file.exists?\n  puts \"\u30d5\u30a1\u30a4\u30eb\u304c\u5b58\u5728\u3057\u307e\u305b\u3093\"\nend\n\n# \u5f8c\u7f6eunless\u3092\u4f7f\u7528\uff08\u3088\u308a\u7c21\u6f54\uff09\nputs \"\u30d5\u30a1\u30a4\u30eb\u304c\u5b58\u5728\u3057\u307e\u305b\u3093\" unless file.exists?<\/pre>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001unless\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u7279\u306b\u5426\u5b9a\u306e\u6761\u4ef6\u3092\u6271\u3046\u5834\u5408\u306b\u3001\u3088\u308a\u8aad\u307f\u3084\u3059\u304f\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306fRuby\u306e\u300c\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u306e\u5e78\u305b\u300d\u3092\u91cd\u8996\u3059\u308b\u8a2d\u8a08\u601d\u60f3\u306e\u5177\u4f53\u7684\u306a\u5b9f\u88c5\u4f8b\u306e\u4e00\u3064\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5f8c\u7d9a\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001unless\u306e\u5177\u4f53\u7684\u306a\u4f7f\u3044\u65b9\u3084\u3001\u5b9f\u8df5\u7684\u306a\u30b1\u30fc\u30b9\u3067\u306e\u6d3b\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002unless\u3068\u306f\uff1fRuby\u306e\u6761\u4ef6\u5206\u5c90\u3092\u7406\u89e3\u3057\u3088\u3046<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-3\">unless\u306fif\u306e\u9006\u306e\u52d5\u4f5c\u3092\u3059\u308b\u6761\u4ef6\u5206\u5c90<\/h3>\n\n\n\n<p>Ruby\u306eunless\u306f\u3001\u6761\u4ef6\u304c\u507d\uff08false\uff09\u306e\u5834\u5408\u306b\u30b3\u30fc\u30c9\u30d6\u30ed\u30c3\u30af\u3092\u5b9f\u884c\u3059\u308b\u5236\u5fa1\u69cb\u9020\u3067\u3059\u3002\u8a00\u3044\u63db\u3048\u308c\u3070\u3001if\u306e\u9006\u306e\u52d5\u4f5c\u3092\u884c\u3046\u6761\u4ef6\u5206\u5c90\u6587\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u4f8b\u3067\u5177\u4f53\u7684\u306b\u898b\u3066\u307f\u307e\u3057\u3087\u3046\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=\"\"># if\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\nif !user.admin?\n  puts \"\u7ba1\u7406\u8005\u6a29\u9650\u304c\u3042\u308a\u307e\u305b\u3093\"\nend\n\n# unless\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\nunless user.admin?\n  puts \"\u7ba1\u7406\u8005\u6a29\u9650\u304c\u3042\u308a\u307e\u305b\u3093\"\nend<\/pre>\n\n\n\n<p>\u3053\u306e2\u3064\u306e\u30b3\u30fc\u30c9\u306f\u5168\u304f\u540c\u3058\u52d5\u4f5c\u3092\u3057\u307e\u3059\u304c\u3001unless\u3092\u4f7f\u7528\u3057\u305f\u65b9\u304c\u300c\u7ba1\u7406\u8005\u6a29\u9650\u304c\u306a\u3044\u5834\u5408\u300d\u3068\u3044\u3046\u6761\u4ef6\u3092\u3088\u308a\u81ea\u7136\u306b\u8868\u73fe\u3067\u304d\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-4\">\u306a\u305cRuby\u306bunless\u304c\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u306e\u304b<\/h3>\n\n\n\n<p>Ruby\u306bunless\u304c\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u7406\u7531\u306f\u3001\u4ee5\u4e0b\u306e3\u3064\u306e\u91cd\u8981\u306a\u8a2d\u8a08\u601d\u60f3\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u53ef\u8aad\u6027\u306e\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5426\u5b9a\u306e\u6761\u4ef6\u3092\u6271\u3046\u5834\u5408\u3001unless\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u8ad6\u7406\u7684\u306a\u610f\u56f3\u304c\u3088\u308a\u660e\u78ba\u306b\u306a\u308a\u307e\u3059<\/li>\n\n\n\n<li>\u4e8c\u91cd\u5426\u5b9a\u3092\u907f\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u30b3\u30fc\u30c9\u306e\u7406\u89e3\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Ruby\u3089\u3057\u3044\u8868\u73fe\u529b<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ruby\u306f\u4eba\u9593\u306b\u3068\u3063\u3066\u81ea\u7136\u306a\u8868\u73fe\u3092\u91cd\u8996\u3059\u308b\u8a00\u8a9e\u8a2d\u8a08\u3092\u6301\u3063\u3066\u3044\u307e\u3059<\/li>\n\n\n\n<li>unless\u306f\u82f1\u8a9e\u306e\u300c\u301c\u3067\u306a\u3044\u5834\u5408\u300d\u3068\u3044\u3046\u8868\u73fe\u306b\u8fd1\u304f\u3001\u30b3\u30fc\u30c9\u3092\u81ea\u7136\u8a00\u8a9e\u306b\u8fd1\u3044\u5f62\u3067\u66f8\u3051\u307e\u3059<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b7\u30f3\u30d7\u30eb\u3067\u7f8e\u3057\u3044\u30b3\u30fc\u30c9<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5426\u5b9a\u306e\u6761\u4ef6\u3092\u3088\u308a\u7c21\u6f54\u306b\u8868\u73fe\u3067\u304d\u307e\u3059<\/li>\n\n\n\n<li>\u7279\u306b\u5f8c\u7f6eunless\uff08\u4fee\u98fe\u5b50\u5f62\u5f0f\uff09\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u30011\u884c\u3067\u7c21\u6f54\u306a\u6761\u4ef6\u5206\u5c90\u3092\u66f8\u3051\u307e\u3059<\/li>\n<\/ul>\n\n\n\n<p>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u306e\u9055\u3044\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\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=\"\"># \u4e00\u822c\u7684\u306a\u5426\u5b9a\u6761\u4ef6\uff08if\uff09\nif !file.exists?\n  puts \"\u30d5\u30a1\u30a4\u30eb\u304c\u5b58\u5728\u3057\u307e\u305b\u3093\"\nend\n\n# unless\u3092\u4f7f\u7528\nunless file.exists?\n  puts \"\u30d5\u30a1\u30a4\u30eb\u304c\u5b58\u5728\u3057\u307e\u305b\u3093\"\nend\n\n# \u5f8c\u7f6eunless\u3092\u4f7f\u7528\uff08\u3088\u308a\u7c21\u6f54\uff09\nputs \"\u30d5\u30a1\u30a4\u30eb\u304c\u5b58\u5728\u3057\u307e\u305b\u3093\" unless file.exists?<\/pre>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001unless\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u7279\u306b\u5426\u5b9a\u306e\u6761\u4ef6\u3092\u6271\u3046\u5834\u5408\u306b\u3001\u3088\u308a\u8aad\u307f\u3084\u3059\u304f\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306fRuby\u306e\u300c\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u306e\u5e78\u305b\u300d\u3092\u91cd\u8996\u3059\u308b\u8a2d\u8a08\u601d\u60f3\u306e\u5177\u4f53\u7684\u306a\u5b9f\u88c5\u4f8b\u306e\u4e00\u3064\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5f8c\u7d9a\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001unless\u306e\u5177\u4f53\u7684\u306a\u4f7f\u3044\u65b9\u3084\u3001\u5b9f\u8df5\u7684\u306a\u30b1\u30fc\u30b9\u3067\u306e\u6d3b\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-5\">unless\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u3068\u6587\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-6\">unless\u6587\u306e\u57fa\u672c\u69cb\u6587\u3092\u7406\u89e3\u3059\u308b<\/h3>\n\n\n\n<p>unless\u306e\u57fa\u672c\u69cb\u6587\u306f\u4ee5\u4e0b\u306e3\u3064\u306e\u30d1\u30bf\u30fc\u30f3\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u57fa\u672c\u5f62<\/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=\"\">unless \u6761\u4ef6\n  # \u6761\u4ef6\u304c\u507d(false)\u306e\u5834\u5408\u306b\u5b9f\u884c\u3055\u308c\u308b\u51e6\u7406\nend\n\n# \u5177\u4f53\u4f8b\ntemperature = 15\nunless temperature &gt; 25\n  puts \"\u6691\u304f\u306a\u3044\u65e5\u3067\u3059\"  # \u6c17\u6e29\u304c25\u5ea6\u4ee5\u4e0b\u306e\u5834\u5408\u306b\u5b9f\u884c\nend<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>else\u53e5\u3092\u542b\u3080\u5f62<\/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=\"\">unless \u6761\u4ef6\n  # \u6761\u4ef6\u304c\u507d(false)\u306e\u5834\u5408\u306b\u5b9f\u884c\u3055\u308c\u308b\u51e6\u7406\nelse\n  # \u6761\u4ef6\u304c\u771f(true)\u306e\u5834\u5408\u306b\u5b9f\u884c\u3055\u308c\u308b\u51e6\u7406\nend\n\n# \u5177\u4f53\u4f8b\nstatus = \"pending\"\nunless status == \"completed\"\n  puts \"\u51e6\u7406\u306f\u5b8c\u4e86\u3057\u3066\u3044\u307e\u305b\u3093\"\nelse\n  puts \"\u51e6\u7406\u306f\u5b8c\u4e86\u3057\u3066\u3044\u307e\u3059\"\nend<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li>\u4fee\u98fe\u5b50\u5f62\u5f0f\uff08\u5f8c\u7f6eunless\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=\"\">\u5b9f\u884c\u3057\u305f\u3044\u51e6\u7406 unless \u6761\u4ef6\n\n# \u5177\u4f53\u4f8b\nputs \"\u307e\u3060\u6e96\u5099\u4e2d\u3067\u3059\" unless site.ready?<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">\u5f8c\u7f6eunless\u30671\u884c\u3067\u66f8\u304f\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u5f8c\u7f6eunless\u306f\u3001\u30b7\u30f3\u30d7\u30eb\u306a\u6761\u4ef6\u5206\u5c90\u30921\u884c\u3067\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u308b\u4fbf\u5229\u306a\u69cb\u6587\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5834\u5408\u306b\u7279\u306b\u6709\u52b9\u3067\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b7\u30f3\u30d7\u30eb\u306a\u8b66\u544a\u3084\u30ed\u30b0\u51fa\u529b<\/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=\"\"># \u5f93\u6765\u306e\u66f8\u304d\u65b9\nunless user.authenticated?\n  logger.warn \"\u672a\u8a8d\u8a3c\u306e\u30a2\u30af\u30bb\u30b9\u3067\u3059\"\nend\n\n# \u5f8c\u7f6eunless\u3092\u4f7f\u7528\u3057\u305f\u7c21\u6f54\u306a\u66f8\u304d\u65b9\nlogger.warn \"\u672a\u8a8d\u8a3c\u306e\u30a2\u30af\u30bb\u30b9\u3067\u3059\" unless user.authenticated?<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u65e9\u671f\u30ea\u30bf\u30fc\u30f3\uff08\u30ac\u30fc\u30c9\u7bc0\uff09<\/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=\"\"># \u30e1\u30bd\u30c3\u30c9\u5185\u3067\u306e\u4f7f\u7528\u4f8b\ndef process_data(data)\n  return nil unless data.valid?\n  # \u4ee5\u964d\u306e\u30c7\u30fc\u30bf\u51e6\u7406...\nend<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u6761\u4ef6\u4ed8\u304d\u306e\u5909\u6570\u4ee3\u5165<\/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=\"\"># \u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u306e\u8a2d\u5b9a\ntimeout = 30 unless timeout_specified?<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">else\u53e5\u306e\u4f7f\u7528\u65b9\u6cd5\u3068\u6ce8\u610f\u70b9<\/h3>\n\n\n\n<p>else\u53e5\u306e\u4f7f\u7528\u306f\u53ef\u80fd\u3067\u3059\u304c\u3001\u4ee5\u4e0b\u306e\u70b9\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u53ef\u8aad\u6027\u3078\u306e\u5f71\u97ff<\/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=\"\"># \u3042\u307e\u308a\u63a8\u5968\u3055\u308c\u306a\u3044\u4f7f\u7528\u4f8b\nunless user.admin?\n  puts \"\u4e00\u822c\u30e6\u30fc\u30b6\u30fc\u3067\u3059\"\nelse\n  puts \"\u7ba1\u7406\u8005\u30e6\u30fc\u30b6\u30fc\u3067\u3059\"\nend\n\n# \u3088\u308a\u826f\u3044\u66f8\u304d\u65b9\uff08if\u3092\u4f7f\u7528\uff09\nif user.admin?\n  puts \"\u7ba1\u7406\u8005\u30e6\u30fc\u30b6\u30fc\u3067\u3059\"\nelse\n  puts \"\u4e00\u822c\u30e6\u30fc\u30b6\u30fc\u3067\u3059\"\nend<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u8907\u96d1\u306a\u6761\u4ef6\u5206\u5c90\u306e\u56de\u907f<\/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=\"\"># \u907f\u3051\u308b\u3079\u304d\u4f7f\u7528\u4f8b\nunless status == \"pending\"\n  puts \"\u51e6\u7406\u4e2d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\"\nelse\n  unless user.admin?\n    puts \"\u7ba1\u7406\u8005\u6a29\u9650\u304c\u3042\u308a\u307e\u305b\u3093\"\n  else\n    puts \"\u51e6\u7406\u3092\u958b\u59cb\u3057\u307e\u3059\"\n  end\nend\n\n# \u3088\u308a\u826f\u3044\u66f8\u304d\u65b9\nif status == \"pending\" &amp;&amp; user.admin?\n  puts \"\u51e6\u7406\u3092\u958b\u59cb\u3057\u307e\u3059\"\nelsif status == \"pending\"\n  puts \"\u7ba1\u7406\u8005\u6a29\u9650\u304c\u3042\u308a\u307e\u305b\u3093\"\nelse\n  puts \"\u51e6\u7406\u4e2d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\"\nend<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u3092\u7406\u89e3\u3057\u305f\u4e0a\u3067\u3001\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306fif\u3068unless\u306e\u9069\u5207\u306a\u4f7f\u3044\u5206\u3051\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002unless\u3092\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3068\u4fdd\u5b88\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-9\">if\u3068unless\u306e\u4f7f\u3044\u5206\u3051\u65b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u5426\u5b9a\u306e\u6761\u4ef6\u3067unless\u3092\u4f7f\u3046\u3079\u304d\u7406\u7531<\/h3>\n\n\n\n<p>unless\u306f\u5426\u5b9a\u306e\u6761\u4ef6\u3092\u6271\u3046\u969b\u306b\u7279\u306b\u52b9\u679c\u3092\u767a\u63ee\u3057\u307e\u3059\u3002\u305d\u306e\u4e3b\u306a\u7406\u7531\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4e8c\u91cd\u5426\u5b9a\u306e\u56de\u907f<\/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=\"\"># \u907f\u3051\u308b\u3079\u304d\u66f8\u304d\u65b9\uff08\u4e8c\u91cd\u5426\u5b9a\uff09\nif !user.valid?\n  show_error_message\nend\n\n# \u63a8\u5968\u3055\u308c\u308b\u66f8\u304d\u65b9\nunless user.valid?\n  show_error_message\nend<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30b3\u30fc\u30c9\u306e\u610f\u56f3\u306e\u660e\u78ba\u5316<\/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=\"\"># \u6761\u4ef6\u304c\u8907\u96d1\u3067\u7406\u89e3\u3057\u306b\u304f\u3044\nif !(user.authenticated? &amp;&amp; user.active?)\n  redirect_to login_path\nend\n\n# \u3088\u308a\u660e\u78ba\u306a\u610f\u56f3\uff08\u5358\u7d14\u306a\u5426\u5b9a\u6761\u4ef6\uff09\nunless user.authenticated?\n  redirect_to login_path\nend<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">\u53ef\u8aad\u6027\u3092\u9ad8\u3081\u308b\u305f\u3081\u306e\u9078\u629e\u57fa\u6e96<\/h3>\n\n\n\n<p>if\u3068unless\u306e\u9078\u629e\u306f\u3001\u4ee5\u4e0b\u306e\u57fa\u6e96\u306b\u57fa\u3065\u3044\u3066\u5224\u65ad\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\uff1a<\/p>\n\n\n<div id=\"id-da19c985-59b3-4234-844a-dea9442b2236\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u72b6\u6cc1<\/th><th>\u63a8\u5968\u3055\u308c\u308b\u4f7f\u7528<\/th><th>\u7406\u7531<\/th><\/tr><\/thead><tbody><tr><td>\u5358\u7d14\u306a\u5426\u5b9a\u6761\u4ef6<\/td><td>unless<\/td><td>\u3088\u308a\u81ea\u7136\u306a\u8aad\u307f\u65b9\u304c\u3067\u304d\u308b<\/td><\/tr><tr><td>\u8907\u6570\u306e\u6761\u4ef6\u7d44\u307f\u5408\u308f\u305b<\/td><td>if<\/td><td>\u8ad6\u7406\u304c\u8907\u96d1\u306b\u306a\u308a\u3059\u304e\u306a\u3044<\/td><\/tr><tr><td>else\u53e5\u304c\u5fc5\u8981\u306a\u5834\u5408<\/td><td>if<\/td><td>\u6761\u4ef6\u5206\u5c90\u306e\u6d41\u308c\u304c\u7406\u89e3\u3057\u3084\u3059\u3044<\/td><\/tr><tr><td>\u30ac\u30fc\u30c9\u7bc0\u3068\u3057\u3066\u4f7f\u7528<\/td><td>unless<\/td><td>\u65e9\u671f\u30ea\u30bf\u30fc\u30f3\u306e\u610f\u56f3\u304c\u660e\u78ba\u306b\u306a\u308b<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"i-12\">\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306e\u4f7f\u7528\u4f8b<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u30c1\u30a7\u30c3\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=\"\">class User &lt; ApplicationRecord\n  def save_profile\n    # \u63a8\u5968\u3055\u308c\u308b\u4f7f\u7528\u4f8b\n    unless valid?\n      return false\n    end\n\n    # \u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u4fdd\u5b58\u306e\u51e6\u7406\n    process_profile_data\n  end\nend<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30a2\u30af\u30bb\u30b9\u5236\u5fa1<\/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=\"\">class ApplicationController &lt; ActionController::Base\n  # \u9069\u5207\u306aunless\u306e\u4f7f\u7528\u4f8b\n  def require_authentication\n    unless current_user\n      redirect_to login_path\n      return\n    end\n  end\n\n  # if\u306e\u65b9\u304c\u9069\u3057\u3066\u3044\u308b\u4f8b\n  def check_permissions\n    if current_user.admin?\n      allow_access\n    else\n      deny_access\n    end\n  end\nend<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u6761\u4ef6\u4ed8\u304d\u306e\u51e6\u7406\u5b9f\u884c<\/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=\"\">class OrderProcessor\n  def process_order(order)\n    # unless\u3092\u4f7f\u7528\u3057\u305f\u660e\u78ba\u306a\u30ac\u30fc\u30c9\u7bc0\n    unless order.payment_confirmed?\n      notify_payment_required\n      return\n    end\n\n    # if\u3092\u4f7f\u7528\u3057\u305f\u660e\u78ba\u306a\u6761\u4ef6\u5206\u5c90\n    if order.items_available?\n      process_shipment\n    else\n      notify_out_of_stock\n    end\n  end\nend<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u4f8b\u304b\u3089\u5206\u304b\u308b\u3088\u3046\u306b\u3001unless\u306f\u7279\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5834\u5408\u306b\u52b9\u679c\u7684\u3067\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30ac\u30fc\u30c9\u7bc0\u3068\u3057\u3066\u4f7f\u7528\u3059\u308b\u5834\u5408<\/li>\n\n\n\n<li>\u30b7\u30f3\u30d7\u30eb\u306a\u5426\u5b9a\u6761\u4ef6\u3092\u6271\u3046\u5834\u5408<\/li>\n\n\n\n<li>\u65e9\u671f\u30ea\u30bf\u30fc\u30f3\u3092\u884c\u3046\u5834\u5408<\/li>\n<\/ul>\n\n\n\n<p>\u4e00\u65b9\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5834\u5408\u306fif\u3092\u4f7f\u7528\u3059\u308b\u65b9\u304c\u9069\u5207\u3067\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8907\u6570\u306e\u6761\u4ef6\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408<\/li>\n\n\n\n<li>else\u53e5\u3092\u542b\u3080\u6761\u4ef6\u5206\u5c90\u304c\u5fc5\u8981\u306a\u5834\u5408<\/li>\n\n\n\n<li>\u80af\u5b9a\u7684\u306a\u6761\u4ef6\u306e\u65b9\u304c\u7406\u89e3\u3057\u3084\u3059\u3044\u5834\u5408<\/li>\n<\/ul>\n\n\n\n<p>\u9069\u5207\u306a\u4f7f\u3044\u5206\u3051\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u304c\u5411\u4e0a\u3057\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001unless\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u5177\u4f53\u7684\u306a\u91cd\u8981\u30dd\u30a4\u30f3\u30c8\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-13\">unless\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e5\u3064\u306e\u91cd\u8981\u30dd\u30a4\u30f3\u30c8<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u8907\u96d1\u306a\u6761\u4ef6\u306f\u907f\u3051\u308b<\/h3>\n\n\n\n<p>unless\u306f\u5358\u7d14\u306a\u5426\u5b9a\u6761\u4ef6\u306b\u4f7f\u7528\u3059\u308b\u306e\u304c\u6700\u9069\u3067\u3059\u3002\u8907\u96d1\u306a\u6761\u4ef6\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30b3\u30fc\u30c9\u306e\u7406\u89e3\u304c\u56f0\u96e3\u306b\u306a\u308a\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=\"\"># \u60aa\u3044\u4f8b\uff1a\u8907\u96d1\u306a\u6761\u4ef6\nunless user.admin? &amp;&amp; user.active? || user.special_permission?\n  deny_access\nend\n\n# \u826f\u3044\u4f8b\uff1a\u6761\u4ef6\u3092\u5206\u5272\u3057\u3066\u7406\u89e3\u3057\u3084\u3059\u304f\ndef has_access?\n  user.admin? &amp;&amp; user.active? || user.special_permission?\nend\n\nunless has_access?\n  deny_access\nend\n\n# \u3082\u3057\u304f\u306f\u6761\u4ef6\u3092\u53cd\u8ee2\u3057\u3066if\u3092\u4f7f\u7528\nif has_access?\n  grant_access\nelse\n  deny_access\nend<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-15\">else\u53e5\u306e\u4f7f\u7528\u306f\u6700\u5c0f\u9650\u306b<\/h3>\n\n\n\n<p>else\u53e5\u3092\u542b\u3080unless\u6587\u306f\u3001\u8ad6\u7406\u306e\u6d41\u308c\u3092\u8ffd\u3044\u306b\u304f\u304f\u306a\u308b\u305f\u3081\u3001\u53ef\u80fd\u306a\u9650\u308a\u907f\u3051\u308b\u3079\u304d\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=\"\"># \u907f\u3051\u308b\u3079\u304d\u4f8b\nunless user.verified?\n  show_verification_message\nelse\n  proceed_to_dashboard\nend\n\n# \u63a8\u5968\u3055\u308c\u308b\u66f8\u304d\u65b9\nif user.verified?\n  proceed_to_dashboard\nelse\n  show_verification_message\nend\n\n# \u307e\u305f\u306f\u6761\u4ef6\u3092\u5206\u5272\nreturn show_verification_message unless user.verified?\nproceed_to_dashboard<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">\u30cd\u30b9\u30c8\u306f\u907f\u3051\u308b<\/h3>\n\n\n\n<p>unless\u306e\u30cd\u30b9\u30c8\u306f\u8907\u96d1\u306a\u8ad6\u7406\u69cb\u9020\u3092\u751f\u307f\u51fa\u3057\u3001\u30b3\u30fc\u30c9\u306e\u4fdd\u5b88\u6027\u3092\u4f4e\u4e0b\u3055\u305b\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=\"\"># \u907f\u3051\u308b\u3079\u304d\u4f8b\uff1a\u30cd\u30b9\u30c8\u3055\u308c\u305funless\nunless user.guest?\n  unless user.blocked?\n    unless user.inactive?\n      process_user_action\n    end\n  end\nend\n\n# \u826f\u3044\u4f8b\uff1a\u6761\u4ef6\u3092\u7d71\u5408\ndef can_process_action?\n  user.registered? &amp;&amp; user.active? &amp;&amp; !user.blocked?\nend\n\nif can_process_action?\n  process_user_action\nend\n\n# \u307e\u305f\u306f\u65e9\u671f\u30ea\u30bf\u30fc\u30f3\u3092\u4f7f\u7528\ndef process_user_request\n  return if user.guest?\n  return if user.blocked?\n  return if user.inactive?\n\n  process_user_action\nend<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u771f\u507d\u5024\u3092\u76f4\u63a5\u4f7f\u7528\u3059\u308b<\/h3>\n\n\n\n<p>\u30e1\u30bd\u30c3\u30c9\u304c\u771f\u507d\u5024\u3092\u8fd4\u3059\u5834\u5408\u3001\u4f59\u5206\u306a\u6bd4\u8f03\u6f14\u7b97\u5b50\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\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=\"\"># \u5197\u9577\u306a\u66f8\u304d\u65b9\nunless valid? == true\n  show_errors\nend\n\nunless is_active? == false\n  process_account\nend\n\n# \u63a8\u5968\u3055\u308c\u308b\u66f8\u304d\u65b9\nunless valid?\n  show_errors\nend\n\nif is_active?\n  process_account\nend<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-18\">\u30e1\u30bd\u30c3\u30c9\u540d\u306f\u80af\u5b9a\u5f62\u3092\u4f7f\u7528\u3059\u308b<\/h3>\n\n\n\n<p>unless\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u30e1\u30bd\u30c3\u30c9\u540d\u306f\u3001\u80af\u5b9a\u5f62\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u53ef\u8aad\u6027\u304c\u5411\u4e0a\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=\"\"># \u60aa\u3044\u4f8b\uff1a\u30e1\u30bd\u30c3\u30c9\u540d\u304c\u5426\u5b9a\u5f62\nclass User\n  def not_verified?\n    !verified_at\n  end\nend\n\nunless user.not_verified?  # \u4e8c\u91cd\u5426\u5b9a\u306b\u306a\u308a\u7406\u89e3\u3057\u3065\u3089\u3044\n  proceed_to_dashboard\nend\n\n# \u826f\u3044\u4f8b\uff1a\u30e1\u30bd\u30c3\u30c9\u540d\u304c\u80af\u5b9a\u5f62\nclass User\n  def verified?\n    verified_at.present?\n  end\nend\n\nunless user.verified?  # \u610f\u56f3\u304c\u660e\u78ba\n  redirect_to_verification\nend<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u91cd\u8981\u30dd\u30a4\u30f3\u30c8\u3092\u5b9f\u8df5\u7684\u306b\u9069\u7528\u3059\u308b\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\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=\"\">class OrderProcessor\n  def process_order(order)\n    # 1. \u8907\u96d1\u306a\u6761\u4ef6\u3092\u907f\u3051\u3001\u30e1\u30bd\u30c3\u30c9\u306b\u62bd\u51fa\n    return handle_invalid_order unless order.valid?\n\n    # 2. else\u53e5\u3092\u4f7f\u7528\u305b\u305a\u3001\u65e9\u671f\u30ea\u30bf\u30fc\u30f3\n    return notify_out_of_stock unless items_available?(order)\n\n    # 3. \u30cd\u30b9\u30c8\u3092\u907f\u3051\u3001\u30d5\u30e9\u30c3\u30c8\u306a\u69cb\u9020\u306b\n    return request_payment unless payment_confirmed?(order)\n\n    # 4. \u771f\u507d\u5024\u3092\u76f4\u63a5\u4f7f\u7528\n    return queue_for_shipping unless express_delivery?\n\n    # 5. \u80af\u5b9a\u5f62\u306e\u30e1\u30bd\u30c3\u30c9\u540d\u3092\u4f7f\u7528\n    ship_immediately if delivery_possible?\n  end\n\n  private\n\n  def items_available?(order)\n    order.items.all?(&amp;:in_stock?)\n  end\n\n  def payment_confirmed?(order)\n    order.payment.status == 'confirmed'\n  end\n\n  def delivery_possible?\n    current_time.between?(delivery_start_time, delivery_end_time)\n  end\nend<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u91cd\u8981\u30dd\u30a4\u30f3\u30c8\u3092\u5b88\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u4fdd\u5b88\u6027\u304c\u9ad8\u304f\u3001\u7406\u89e3\u3057\u3084\u3059\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3088\u304f\u3042\u308b\u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3\u3068\u305d\u306e\u5bfe\u51e6\u6cd5\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-19\">\u3088\u304f\u3042\u308bunless\u306e\u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3\u3068\u5bfe\u51e6\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-20\">\u8907\u6570\u306e\u6761\u4ef6\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u5834\u5408\u306e\u554f\u984c<\/h3>\n\n\n\n<p>\u8907\u6570\u306e\u6761\u4ef6\u3092\u7d44\u307f\u5408\u308f\u305b\u305funless\u6587\u306f\u3001\u8ad6\u7406\u7684\u306a\u7406\u89e3\u3092\u56f0\u96e3\u306b\u3059\u308b\u6700\u3082\u4e00\u822c\u7684\u306a\u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3\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=\"\"># \u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3\uff1a\u8907\u96d1\u306a\u8ad6\u7406\u6f14\u7b97\nunless user.active? &amp;&amp; user.email_verified? || user.admin?\n  show_warning_message\nend\n\n# \u6539\u5584\u68481\uff1a\u30e1\u30bd\u30c3\u30c9\u306b\u62bd\u51fa\u3057\u3066\u610f\u56f3\u3092\u660e\u78ba\u306b\ndef verified_regular_user?\n  user.active? &amp;&amp; user.email_verified?\nend\n\ndef can_access?\n  verified_regular_user? || user.admin?\nend\n\nunless can_access?\n  show_warning_message\nend\n\n# \u6539\u5584\u68482\uff1aif\u6587\u3092\u4f7f\u7528\u3057\u3066\u80af\u5b9a\u7684\u306a\u6761\u4ef6\u306b\u5909\u66f4\nif can_access?\n  proceed_with_action\nelse\n  show_warning_message\nend<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-21\">else\u3092\u591a\u7528\u3057\u305f\u30b3\u30fc\u30c9\u306e\u6539\u5584\u65b9\u6cd5<\/h3>\n\n\n\n<p>else\u53e5\u3092\u542b\u3080unless\u6587\u306f\u3001\u30b3\u30fc\u30c9\u306e\u6d41\u308c\u3092\u7406\u89e3\u3057\u3065\u3089\u304f\u3059\u308b\u539f\u56e0\u3068\u306a\u308a\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=\"\"># \u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3\uff1aelse\u3092\u591a\u7528\nunless user.subscription.active?\n  notify_expired_subscription\n  redirect_to_pricing\nelse\n  unless user.payment_method.valid?\n    request_new_payment_method\n  else\n    process_renewal\n  end\nend\n\n# \u6539\u5584\u6848\uff1a\u30ac\u30fc\u30c9\u7bc0\u3068\u30b7\u30f3\u30d7\u30eb\u306a\u6761\u4ef6\u5206\u5c90\u306e\u7d44\u307f\u5408\u308f\u305b\ndef process_subscription_renewal\n  return handle_expired_subscription unless user.subscription.active?\n  return request_new_payment_method unless user.payment_method.valid?\n\n  process_renewal\nend\n\nprivate\n\ndef handle_expired_subscription\n  notify_expired_subscription\n  redirect_to_pricing\nend<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-22\">\u5426\u5b9a\u306e\u30e1\u30bd\u30c3\u30c9\u3068unless\u306e\u7d44\u307f\u5408\u308f\u305b<\/h3>\n\n\n\n<p>\u5426\u5b9a\u5f62\u306e\u30e1\u30bd\u30c3\u30c9\u540d\u3068unless\u306e\u7d44\u307f\u5408\u308f\u305b\u306f\u3001\u4e8c\u91cd\u5426\u5b9a\u3068\u306a\u308a\u7406\u89e3\u3092\u56f0\u96e3\u306b\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=\"\"># \u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3\uff1a\u5426\u5b9a\u306e\u30e1\u30bd\u30c3\u30c9\u3068unless\u306e\u7d44\u307f\u5408\u308f\u305b\nclass User\n  def not_completed?\n    status != 'completed'\n  end\n\n  def inactive?\n    !active\n  end\nend\n\n# \u4f7f\u7528\u4f8b\uff08\u7406\u89e3\u3057\u3065\u3089\u3044\uff09\nunless user.not_completed?\n  process_next_step\nend\n\nunless user.inactive?\n  perform_action\nend\n\n# \u6539\u5584\u6848\uff1a\u80af\u5b9a\u5f62\u306e\u30e1\u30bd\u30c3\u30c9\u540d\u3092\u4f7f\u7528\nclass User\n  def completed?\n    status == 'completed'\n  end\n\n  def active?\n    active\n  end\nend\n\n# \u4f7f\u7528\u4f8b\uff08\u7406\u89e3\u3057\u3084\u3059\u3044\uff09\nif user.completed?\n  process_next_step\nend\n\nif user.active?\n  perform_action\nend<\/pre>\n\n\n\n<p>\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u3088\u304f\u898b\u3089\u308c\u308b\u5177\u4f53\u7684\u306a\u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3\u3068\u305d\u306e\u6539\u5584\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\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=\"\"># \u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3\u306e\u4f8b\nclass OrderProcessor\n  def process_order(order)\n    unless !order.items.empty? &amp;&amp; !order.address.nil?\n      return false\n    else\n      unless !order.payment_failed?\n        notify_payment_error\n      else\n        unless !shipping_unavailable?\n          delay_shipping\n        else\n          process_shipping\n        end\n      end\n    end\n  end\nend\n\n# \u6539\u5584\u5f8c\u306e\u30b3\u30fc\u30c9\nclass OrderProcessor\n  def process_order(order)\n    return false if order.items.empty? || order.address.nil?\n    return notify_payment_error if order.payment_failed?\n    return delay_shipping if shipping_unavailable?\n\n    process_shipping\n  end\n\n  private\n\n  def shipping_unavailable?\n    !shipping_service.available?\n  end\nend<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3\u3092\u907f\u3051\u308b\u305f\u3081\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u8907\u6570\u306e\u6761\u4ef6\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u5834\u5408\u306f\u3001\u5225\u306e\u30e1\u30bd\u30c3\u30c9\u306b\u62bd\u51fa\u3059\u308b\u3053\u3068\u3092\u691c\u8a0e<\/li>\n\n\n\n<li>else\u53e5\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001if\u6587\u306e\u4f7f\u7528\u3092\u691c\u8a0e<\/li>\n\n\n\n<li>\u5426\u5b9a\u5f62\u306e\u30e1\u30bd\u30c3\u30c9\u540d\u306f\u80af\u5b9a\u5f62\u306b\u5909\u66f4<\/li>\n\n\n\n<li>\u8907\u96d1\u306a\u6761\u4ef6\u5206\u5c90\u306f\u3001\u65e9\u671f\u30ea\u30bf\u30fc\u30f3\u3092\u4f7f\u7528\u3057\u3066\u30d5\u30e9\u30c3\u30c8\u5316<\/li>\n\n\n\n<li>\u4e8c\u91cd\u5426\u5b9a\u3092\u907f\u3051\u308b\u305f\u3081\u3001\u6761\u4ef6\u306e\u8ad6\u7406\u3092\u898b\u76f4\u3059<\/li>\n<\/ol>\n\n\n\n<p>\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u77e5\u8b58\u3092\u6d3b\u304b\u3057\u305f\u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u4f8b\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u3064\u3044\u3066\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-23\">\u5b9f\u8df5\u7684\u306aunless\u306e\u4f7f\u7528\u4f8b\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-24\">ActiveRecord\u3067\u306e\u6d3b\u7528\u4f8b<\/h3>\n\n\n\n<p>ActiveRecord\u3067\u306f\u3001unless\u3092\u52b9\u679c\u7684\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\u306e\u6761\u4ef6\u5206\u5c90\u3092\u7c21\u6f54\u306b\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\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=\"\">class Post &lt; ApplicationRecord\n  # \u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u524d\u306e\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\n  before_validation unless: :draft? do\n    normalize_title\n    generate_slug\n  end\n\n  # \u30b9\u30b3\u30fc\u30d7\u3067\u306e\u4f7f\u7528\n  scope :published, -&gt; { where.not(published_at: nil) }\n\n  def publish\n    # \u516c\u958b\u524d\u306e\u30c1\u30a7\u30c3\u30af\n    return false unless valid?\n    return false unless author.can_publish?\n\n    # \u516c\u958b\u51e6\u7406\n    update(published_at: Time.current)\n  end\n\n  # \u30ab\u30b9\u30bf\u30e0\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\n  validate :check_publication_requirements, unless: :draft?\n\n  private\n\n  def normalize_title\n    self.title = title.strip.squeeze(\" \").titleize\n  end\n\n  def check_publication_requirements\n    errors.add(:base, \"\u30bf\u30b0\u304c\u5fc5\u8981\u3067\u3059\") if tags.empty?\n  end\nend<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-25\">\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u4f7f\u7528\u65b9\u6cd5<\/h3>\n\n\n\n<p>Rails\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001unless\u3092\u4f7f\u3063\u3066\u7279\u5b9a\u306e\u6761\u4ef6\u4e0b\u3067\u306e\u307f\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u884c\u3059\u308b\u8a2d\u5b9a\u304c\u53ef\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=\"\">class User &lt; ApplicationRecord\n  # \u30d1\u30b9\u30ef\u30fc\u30c9\u66f4\u65b0\u6642\u306e\u307f\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\n  validates :password, presence: true, unless: :skip_password_validation\n\n  # \u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u5fc5\u9808\u9805\u76ee\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\n  validates :bio, presence: true, unless: :guest?\n  validates :phone, presence: true, unless: :social_login?\n\n  # \u30ab\u30b9\u30bf\u30e0\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\n  validate :check_team_limit, unless: :admin?\n\n  private\n\n  def skip_password_validation\n    persisted? &amp;&amp; password.nil?\n  end\n\n  def check_team_limit\n    return unless teams.count &gt;= 3\n    errors.add(:teams, \"\u4e00\u822c\u30e6\u30fc\u30b6\u30fc\u306f3\u3064\u307e\u3067\u306e\u30c1\u30fc\u30e0\u306b\u3057\u304b\u6240\u5c5e\u3067\u304d\u307e\u305b\u3093\")\n  end\nend<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-26\">\u6761\u4ef6\u5206\u5c90\u3092\u30b7\u30f3\u30d7\u30eb\u306b\u4fdd\u3064\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<p>\u5b9f\u8df5\u7684\u306a\u958b\u767a\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30c6\u30af\u30cb\u30c3\u30af\u3092\u4f7f\u3063\u3066\u30b3\u30fc\u30c9\u3092\u30b7\u30f3\u30d7\u30eb\u306b\u4fdd\u3061\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=\"\">class PaymentProcessor\n  def process_payment(order)\n    # 1. \u65e9\u671f\u30ea\u30bf\u30fc\u30f3\u30d1\u30bf\u30fc\u30f3\n    return fail_payment(\"\u6ce8\u6587\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093\") unless order\n    return fail_payment(\"\u652f\u6255\u3044\u65b9\u6cd5\u304c\u9078\u629e\u3055\u308c\u3066\u3044\u307e\u305b\u3093\") unless order.payment_method\n\n    # 2. \u30b5\u30fc\u30d3\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u306e\u4f7f\u7528\n    payment_service = PaymentService.new(order)\n    unless payment_service.process\n      return fail_payment(payment_service.errors)\n    end\n\n    # 3. \u6761\u4ef6\u5206\u5c90\u306e\u7c21\u7565\u5316\n    notify_success unless order.notification_disabled?\n    update_inventory unless order.digital_product?\n\n    success_payment(order)\n  end\n\n  private\n\n  def fail_payment(reason)\n    {\n      success: false,\n      message: reason\n    }\n  end\n\n  def success_payment(order)\n    {\n      success: true,\n      order_id: order.id,\n      amount: order.total_amount\n    }\n  end\nend<\/pre>\n\n\n\n<p>\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u3088\u304f\u4f7f\u7528\u3055\u308c\u308b\u5b9f\u8df5\u7684\u306a\u30d1\u30bf\u30fc\u30f3\u3092\u307e\u3068\u3081\u308b\u3068\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=\"\"># \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3067\u306e\u4f7f\u7528\u4f8b\nclass ArticlesController &lt; ApplicationController\n  before_action :require_login, unless: :public_action?\n\n  def show\n    @article = Article.find(params[:id])\n\n    # \u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u4f7f\u7528\n    unless Rails.cache.exist?(\"article_#{@article.id}\")\n      Rails.cache.write(\"article_#{@article.id}\", @article.to_json)\n    end\n\n    # \u30a2\u30af\u30bb\u30b9\u6a29\u306e\u30c1\u30a7\u30c3\u30af\n    unless can_view_article?(@article)\n      redirect_to root_path, alert: \"\u95b2\u89a7\u6a29\u9650\u304c\u3042\u308a\u307e\u305b\u3093\"\n      return\n    end\n\n    @article.increment!(:view_count)\n  end\n\n  private\n\n  def public_action?\n    %w[index show].include?(action_name)\n  end\n\n  def can_view_article?(article)\n    article.published? || current_user&amp;.can_view?(article)\n  end\nend<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u8df5\u7684\u306a\u4f8b\u304b\u3089\u3001\u4ee5\u4e0b\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u304c\u5c0e\u304d\u51fa\u3055\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u65e9\u671f\u30ea\u30bf\u30fc\u30f3\u30d1\u30bf\u30fc\u30f3\u3092\u6d3b\u7528\u3057\u3001\u30b3\u30fc\u30c9\u306e\u6df1\u3044\u30cd\u30b9\u30c8\u3092\u907f\u3051\u308b<\/li>\n\n\n\n<li>\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3084\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3067\u306f\u3001\u6761\u4ef6\u3092\u660e\u78ba\u306b\u793a\u3059<\/li>\n\n\n\n<li>\u8907\u96d1\u306a\u6761\u4ef6\u306f\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u306b\u62bd\u51fa\u3059\u308b<\/li>\n\n\n\n<li>\u5426\u5b9a\u306e\u6761\u4ef6\u304c\u81ea\u7136\u306a\u6587\u8108\u3067unless\u3092\u4f7f\u7528\u3059\u308b<\/li>\n\n\n\n<li>\u30b5\u30fc\u30d3\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3084\u30e2\u30c7\u30eb\u3067\u306e\u4f7f\u7528\u6642\u306f\u3001\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u3092\u660e\u78ba\u306b\u8868\u73fe\u3059\u308b<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027\u304c\u9ad8\u304f\u3001\u7406\u89e3\u3057\u3084\u3059\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\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; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":{"0":"post-1530","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-ruby","7":"nothumb"},"_links":{"self":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1530","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1530"}],"version-history":[{"count":1,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1530\/revisions"}],"predecessor-version":[{"id":1531,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1530\/revisions\/1531"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1530"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1530"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1530"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}