{"id":3220,"date":"2025-03-24T08:46:38","date_gmt":"2025-03-23T23:46:38","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=3220"},"modified":"2025-03-24T08:47:09","modified_gmt":"2025-03-23T23:47:09","slug":"%e3%80%90%e4%bf%9d%e5%ad%98%e7%89%88%e3%80%91laravel%e3%81%aedb%e3%83%88%e3%83%a9%e3%83%b3%e3%82%b6%e3%82%af%e3%82%b7%e3%83%a7%e3%83%b3%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89%ef%bc%9a%e5%9f%ba","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=3220","title":{"rendered":"\u3010\u4fdd\u5b58\u7248\u3011Laravel\u306eDB\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5b8c\u5168\u30ac\u30a4\u30c9\uff1a\u57fa\u790e\u304b\u3089\u5b9f\u8df5\u307e\u3067\u89e3\u8aac"},"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\">Laravel\u306eDB\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3068\u306f\uff1a\u57fa\u790e\u77e5\u8b58\u3068\u91cd\u8981\u6027<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u304c\u5fc5\u8981\u306a\u7406\u7531\u3068\u57fa\u672c\u6982\u5ff5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-2\">Laravel\u304c\u63d0\u4f9b\u3059\u308b\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u6a5f\u80fd\u306e\u7279\u5fb4<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-7\">Laravel\u3067\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5b9f\u88c5\u65b9\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-8\">\u57fa\u672c\u7684\u306a\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3\u3068\u69cb\u6587<\/a>      <\/li>      <li>        <a href=\"#i-11\">\u30af\u30ed\u30fc\u30b8\u30e3\u3092\u4f7f\u7528\u3057\u305f\u5b9f\u88c5\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-12\">try-catch\u306b\u3088\u308b\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-13\">\u5b9f\u8df5\u7684\u306a\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u306e\u30d1\u30bf\u30fc\u30f3<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-14\">\u8907\u6570\u30c6\u30fc\u30d6\u30eb\u3092\u6271\u3046\u5834\u5408\u306e\u5b9f\u88c5\u4f8b<\/a>      <\/li>      <li>        <a href=\"#i-16\">\u30cd\u30b9\u30c8\u3057\u305f\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u53d6\u308a\u6271\u3044<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-17\">\u30bb\u30fc\u30d6\u30dd\u30a4\u30f3\u30c8\u3092\u6d3b\u7528\u3057\u305f\u67d4\u8edf\u306a\u5236\u5fa1<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-18\">\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u306e\u6ce8\u610f\u70b9\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-19\">\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u3092\u9632\u3050\u305f\u3081\u306e\u8a2d\u8a08\u65b9\u91dd<\/a>      <\/li>      <li>        <a href=\"#i-23\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u8003\u616e\u3057\u305f\u5b9f\u88c5\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-26\">\u30c6\u30b9\u30c8\u6642\u306e\u52b9\u679c\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-29\">\u5b9f\u52d9\u3067\u4f7f\u3048\u308b\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u6d3b\u7528\u4f8b<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-30\">EC\u30b5\u30a4\u30c8\u306e\u6ce8\u6587\u51e6\u7406\u3067\u306e\u5b9f\u88c5\u4f8b<\/a>      <\/li>      <li>        <a href=\"#i-31\">\u30dd\u30a4\u30f3\u30c8\u4ed8\u4e0e\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u6d3b\u7528\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-32\">\u30d0\u30c3\u30c1\u51e6\u7406\u3067\u306e\u52b9\u679c\u7684\u306a\u4f7f\u3044\u65b9<\/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\">Laravel\u306eDB\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3068\u306f\uff1a\u57fa\u790e\u77e5\u8b58\u3068\u91cd\u8981\u6027<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u304c\u5fc5\u8981\u306a\u7406\u7531\u3068\u57fa\u672c\u6982\u5ff5<\/h3>\n\n\n\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\u306b\u304a\u3044\u3066\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u306f\u4e0d\u53ef\u6b20\u306a\u8981\u7d20\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001EC\u30b5\u30a4\u30c8\u3067\u306e\u6ce8\u6587\u51e6\u7406\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u4e00\u9023\u306e\u51e6\u7406\u304c\u5fc5\u8981\u3067\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6ce8\u6587\u30c6\u30fc\u30d6\u30eb\u306b\u30c7\u30fc\u30bf\u3092\u633f\u5165<\/li>\n\n\n\n<li>\u5728\u5eab\u30c6\u30fc\u30d6\u30eb\u306e\u6570\u91cf\u3092\u66f4\u65b0<\/li>\n\n\n\n<li>\u9867\u5ba2\u306e\u6240\u6301\u30dd\u30a4\u30f3\u30c8\u3092\u66f4\u65b0<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u51e6\u7406\u306f\u3001<strong>\u5168\u3066\u6210\u529f\u3059\u308b\u304b\u3001\u5168\u3066\u5931\u6557\u3059\u308b\u304b<\/strong>\u306e\u3069\u3061\u3089\u304b\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u9014\u4e2d\u3067\u5931\u6557\u3057\u305f\u5834\u5408\u306b\u4e00\u90e8\u306e\u51e6\u7406\u3060\u3051\u304c\u5b9f\u884c\u3055\u308c\u308b\u72b6\u614b\u306f\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u8457\u3057\u304f\u640d\u306a\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u306b\u306f\u4ee5\u4e0b\u306e\u91cd\u8981\u306a\u7279\u6027\uff08ACID\u7279\u6027\uff09\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n<div id=\"id-ecbd6095-512b-4479-b9c4-50c6f198c893\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u6027<\/th><th>\u8aac\u660e<\/th><th>\u91cd\u8981\u6027<\/th><\/tr><\/thead><tbody><tr><td>Atomicity\uff08\u539f\u5b50\u6027\uff09<\/td><td>\u51e6\u7406\u304c\u5168\u3066\u6210\u529f\u3059\u308b\u304b\u3001\u5168\u3066\u5931\u6557\u3059\u308b\u304b\u306e\u3069\u3061\u3089\u304b<\/td><td>\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u4fdd\u8a3c<\/td><\/tr><tr><td>Consistency\uff08\u4e00\u8cab\u6027\uff09<\/td><td>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u5236\u7d04\u304c\u7dad\u6301\u3055\u308c\u308b<\/td><td>\u30c7\u30fc\u30bf\u306e\u4fe1\u983c\u6027\u3092\u78ba\u4fdd<\/td><\/tr><tr><td>Isolation\uff08\u72ec\u7acb\u6027\uff09<\/td><td>\u540c\u6642\u5b9f\u884c\u3055\u308c\u308b\u4ed6\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u5f71\u97ff\u3092\u53d7\u3051\u306a\u3044<\/td><td>\u4e26\u884c\u51e6\u7406\u306e\u5b89\u5168\u6027\u3092\u78ba\u4fdd<\/td><\/tr><tr><td>Durability\uff08\u6c38\u7d9a\u6027\uff09<\/td><td>\u5b8c\u4e86\u3057\u305f\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u7d50\u679c\u306f\u6c38\u7d9a\u7684\u306b\u4fdd\u5b58\u3055\u308c\u308b<\/td><td>\u30c7\u30fc\u30bf\u306e\u6c38\u7d9a\u6027\u3092\u4fdd\u8a3c<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">Laravel\u304c\u63d0\u4f9b\u3059\u308b\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u6a5f\u80fd\u306e\u7279\u5fb4<\/h3>\n\n\n\n<p>Laravel\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3092\u6271\u3046\u305f\u3081\u306e\u8c4a\u5bcc\u306a\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u4e3b\u306a\u7279\u5fb4\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-3\">1. \u76f4\u611f\u7684\u306aAPI<\/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=\"\">\/\/ \u30b7\u30f3\u30d7\u30eb\u306a\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u306e\u4f8b\nDB::transaction(function () {\n    \/\/ \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5185\u306e\u51e6\u7406\n    DB::table('orders')-&gt;insert([...]);\n    DB::table('inventory')-&gt;update([...]);\n});<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-4\">2. \u67d4\u8edf\u306a\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4f8b\u5916\u767a\u751f\u6642\u306e\u81ea\u52d5\u30ed\u30fc\u30eb\u30d0\u30c3\u30af<\/li>\n\n\n\n<li>try-catch\u306b\u3088\u308b\u7d30\u304b\u306a\u5236\u5fa1\u304c\u53ef\u80fd<\/li>\n\n\n\n<li>\u30ab\u30b9\u30bf\u30e0\u4f8b\u5916\u306e\u5229\u7528\u3092\u30b5\u30dd\u30fc\u30c8<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-5\">3. \u9ad8\u5ea6\u306a\u5236\u5fa1\u6a5f\u80fd<\/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=\"\">\/\/ \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u624b\u52d5\u5236\u5fa1\nDB::beginTransaction();\ntry {\n    \/\/ \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5185\u306e\u51e6\u7406\n    DB::commit();\n} catch (\\Exception $e) {\n    DB::rollBack();\n    throw $e;\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-6\">4. \u30cd\u30b9\u30c8\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u30b5\u30dd\u30fc\u30c8<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5185\u3067\u5225\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3092\u958b\u59cb\u53ef\u80fd<\/li>\n\n\n\n<li>\u30bb\u30fc\u30d6\u30dd\u30a4\u30f3\u30c8\u3092\u5229\u7528\u3057\u305f\u90e8\u5206\u7684\u306a\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u304c\u53ef\u80fd<\/li>\n<\/ul>\n\n\n\n<p>Laravel\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u6a5f\u80fd\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30e1\u30ea\u30c3\u30c8\u304c\u5f97\u3089\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5b89\u5168\u6027\u306e\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u304c\u81ea\u52d5\u7684\u306b\u4fdd\u8a3c\u3055\u308c\u308b<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u6642\u306e\u72b6\u614b\u5fa9\u65e7\u304c\u78ba\u5b9f<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u958b\u767a\u52b9\u7387\u306e\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b7\u30f3\u30d7\u30eb\u306a API \u306b\u3088\u308b\u5b9f\u88c5\u306e\u5bb9\u6613\u3055<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u306e\u6a19\u6e96\u5316<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4fdd\u5b88\u6027\u306e\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30fc\u30c9\u306e\u610f\u56f3\u304c\u660e\u78ba<\/li>\n\n\n\n<li>\u30c7\u30d0\u30c3\u30b0\u306e\u3057\u3084\u3059\u3055<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5927\u898f\u6a21\u30b7\u30b9\u30c6\u30e0\u3067\u3082\u5b89\u5168\u306a\u904b\u7528\u304c\u53ef\u80fd<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u8003\u616e\u3057\u305f\u5b9f\u88c5\u30aa\u30d7\u30b7\u30e7\u30f3<\/li>\n<\/ul>\n\n\n\n<p>\u305f\u3060\u3057\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u306b\u306f\u9069\u5207\u306a\u7406\u89e3\u3068\u4f7f\u7528\u304c\u5fc5\u8981\u3067\u3059\u3002\u9577\u6642\u9593\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u307e\u305f\u4e0d\u9069\u5207\u306a\u4f7f\u7528\u306f\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u306a\u3069\u306e\u554f\u984c\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u8ab2\u984c\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081\u306e\u5177\u4f53\u7684\u306a\u5b9f\u88c5\u65b9\u6cd5\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-7\">Laravel\u3067\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5b9f\u88c5\u65b9\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">\u57fa\u672c\u7684\u306a\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3\u3068\u69cb\u6587<\/h3>\n\n\n\n<p>Laravel\u3067\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3092\u5b9f\u88c5\u3059\u308b\u305f\u3081\u306e\u8907\u6570\u306e\u65b9\u6cd5\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u6700\u3082\u4e00\u822c\u7684\u306a\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-9\">1. \u30af\u30ed\u30fc\u30b8\u30e3\u3092\u4f7f\u7528\u3057\u305f\u57fa\u672c\u5b9f\u88c5<\/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=\"\">use Illuminate\\Support\\Facades\\DB;\n\n$result = DB::transaction(function () {\n    \/\/ \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5185\u3067\u306e\u51e6\u7406\n    $user = DB::table('users')-&gt;where('id', 1)-&gt;update([\n        'points' =&gt; 100\n    ]);\n\n    $order = DB::table('orders')-&gt;insert([\n        'user_id' =&gt; 1,\n        'amount' =&gt; 1000\n    ]);\n\n    return $order; \/\/ \u51e6\u7406\u7d50\u679c\u3092\u8fd4\u3059\u3053\u3068\u304c\u53ef\u80fd\n});<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-10\">2. \u624b\u52d5\u5236\u5fa1\u306b\u3088\u308b\u5b9f\u88c5<\/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=\"\">use Illuminate\\Support\\Facades\\DB;\n\nDB::beginTransaction();\ntry {\n    $user = DB::table('users')-&gt;where('id', 1)-&gt;update([\n        'points' =&gt; 100\n    ]);\n\n    $order = DB::table('orders')-&gt;insert([\n        'user_id' =&gt; 1,\n        'amount' =&gt; 1000\n    ]);\n\n    DB::commit();\n    return $order;\n} catch (\\Exception $e) {\n    DB::rollBack();\n    throw $e;\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">\u30af\u30ed\u30fc\u30b8\u30e3\u3092\u4f7f\u7528\u3057\u305f\u5b9f\u88c5\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u30af\u30ed\u30fc\u30b8\u30e3\u3092\u4f7f\u7528\u3057\u305f\u5b9f\u88c5\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u81ea\u52d5\u7684\u306a\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">DB::transaction(function () {\n    \/\/ \u4f8b\u5916\u304c\u767a\u751f\u3059\u308b\u3068\u81ea\u52d5\u7684\u306b\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u3055\u308c\u308b\n    throw new \\Exception('\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3057\u305f');\n});<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30ea\u30c8\u30e9\u30a4\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u6307\u5b9a<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u6700\u59273\u56de\u307e\u3067\u81ea\u52d5\u30ea\u30c8\u30e9\u30a4\nDB::transaction(function () {\n    \/\/ \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\n}, 3);<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u623b\u308a\u5024\u306e\u53d6\u5f97<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">$result = DB::transaction(function () {\n    $data = DB::table('some_table')-&gt;get();\n    return $data; \/\/ \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5185\u306e\u51e6\u7406\u7d50\u679c\u3092\u8fd4\u5374\u53ef\u80fd\n});<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-12\">try-catch\u306b\u3088\u308b\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0<\/h3>\n\n\n\n<p>\u3088\u308a\u7d30\u304b\u306a\u5236\u5fa1\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001try-catch\u30d6\u30ed\u30c3\u30af\u3092\u4f7f\u7528\u3057\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=\"\">use Illuminate\\Database\\QueryException;\n\nclass OrderService\n{\n    public function createOrder(array $orderData)\n    {\n        DB::beginTransaction();\n\n        try {\n            \/\/ \u6ce8\u6587\u30c7\u30fc\u30bf\u306e\u691c\u8a3c\n            if (empty($orderData)) {\n                throw new \\InvalidArgumentException('\u6ce8\u6587\u30c7\u30fc\u30bf\u304c\u7a7a\u3067\u3059');\n            }\n\n            \/\/ \u5728\u5eab\u30c1\u30a7\u30c3\u30af\n            $stock = DB::table('stocks')\n                -&gt;where('product_id', $orderData['product_id'])\n                -&gt;lockForUpdate()  \/\/ \u60b2\u89b3\u7684\u30ed\u30c3\u30af\n                -&gt;first();\n\n            if ($stock-&gt;quantity &lt; $orderData['quantity']) {\n                throw new \\RuntimeException('\u5728\u5eab\u304c\u4e0d\u8db3\u3057\u3066\u3044\u307e\u3059');\n            }\n\n            \/\/ \u6ce8\u6587\u4f5c\u6210\n            $orderId = DB::table('orders')-&gt;insertGetId([\n                'user_id' =&gt; $orderData['user_id'],\n                'product_id' =&gt; $orderData['product_id'],\n                'quantity' =&gt; $orderData['quantity'],\n                'created_at' =&gt; now()\n            ]);\n\n            \/\/ \u5728\u5eab\u66f4\u65b0\n            DB::table('stocks')\n                -&gt;where('product_id', $orderData['product_id'])\n                -&gt;update([\n                    'quantity' =&gt; $stock-&gt;quantity - $orderData['quantity']\n                ]);\n\n            DB::commit();\n            return $orderId;\n\n        } catch (QueryException $e) {\n            DB::rollBack();\n            \\Log::error('\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a8\u30e9\u30fc: ' . $e-&gt;getMessage());\n            throw new \\RuntimeException('\u6ce8\u6587\u51e6\u7406\u306b\u5931\u6557\u3057\u307e\u3057\u305f', 0, $e);\n\n        } catch (\\Exception $e) {\n            DB::rollBack();\n            \\Log::error('\u4e88\u671f\u305b\u306c\u30a8\u30e9\u30fc: ' . $e-&gt;getMessage());\n            throw $e;\n        }\n    }\n}<\/pre>\n\n\n\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u9069\u5207\u306a\u4f8b\u5916\u51e6\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5177\u4f53\u7684\u306a\u4f8b\u5916\u30af\u30e9\u30b9\u3092\u4f7f\u7528<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u30ed\u30b0\u306e\u8a18\u9332<\/li>\n\n\n\n<li>\u4e0a\u4f4d\u5c64\u3078\u306e\u4f8b\u5916\u306e\u4f1d\u64ad<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30ed\u30c3\u30af\u5236\u5fa1<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>lockForUpdate()<\/code>\u306b\u3088\u308b\u60b2\u89b3\u7684\u30ed\u30c3\u30af<\/li>\n\n\n\n<li>\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u9632\u6b62\u306e\u8003\u616e<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u7bc4\u56f2<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5fc5\u8981\u6700\u5c0f\u9650\u306e\u51e6\u7406\u3060\u3051\u3092\u542b\u3081\u308b<\/li>\n\n\n\n<li>\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u306f\u53ef\u80fd\u306a\u9650\u308a\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5916\u3067\u5b9f\u884c<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u306e\u968e\u5c64\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u56fa\u6709\u306e\u30a8\u30e9\u30fc<\/li>\n\n\n\n<li>\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306e\u30a8\u30e9\u30fc<\/li>\n\n\n\n<li>\u4e88\u671f\u305b\u306c\u30a8\u30e9\u30fc<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u3067\u306f\u9069\u5207\u306a\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3068\u4f8b\u5916\u51e6\u7406\u304c\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3088\u308a\u5b9f\u8df5\u7684\u306a\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u306e\u30d1\u30bf\u30fc\u30f3\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-13\">\u5b9f\u8df5\u7684\u306a\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u306e\u30d1\u30bf\u30fc\u30f3<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u8907\u6570\u30c6\u30fc\u30d6\u30eb\u3092\u6271\u3046\u5834\u5408\u306e\u5b9f\u88c5\u4f8b<\/h3>\n\n\n\n<p>\u8907\u6570\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u64cd\u4f5c\u3059\u308b\u5834\u5408\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u5236\u5fa1\u306f\u3088\u308a\u8907\u96d1\u306b\u306a\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u5b9f\u8df5\u7684\u306a\u5b9f\u88c5\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-15\">\u6ce8\u6587\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u5b9f\u88c5\u4f8b<\/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 OrderProcessor\n{\n    private $userRepository;\n    private $orderRepository;\n    private $pointService;\n\n    public function __construct(\n        UserRepository $userRepository,\n        OrderRepository $orderRepository,\n        PointService $pointService\n    ) {\n        $this-&gt;userRepository = $userRepository;\n        $this-&gt;orderRepository = $orderRepository;\n        $this-&gt;pointService = $pointService;\n    }\n\n    public function processOrder(array $orderData)\n    {\n        return DB::transaction(function () use ($orderData) {\n            \/\/ 1. \u30e6\u30fc\u30b6\u30fc\u60c5\u5831\u306e\u53d6\u5f97\u3068\u691c\u8a3c\n            $user = $this-&gt;userRepository-&gt;findOrFail($orderData['user_id']);\n\n            \/\/ 2. \u6ce8\u6587\u30c7\u30fc\u30bf\u306e\u4f5c\u6210\n            $order = $this-&gt;orderRepository-&gt;create([\n                'user_id' =&gt; $user-&gt;id,\n                'total_amount' =&gt; $orderData['amount'],\n                'status' =&gt; 'pending'\n            ]);\n\n            \/\/ 3. \u6ce8\u6587\u8a73\u7d30\u306e\u4f5c\u6210\n            foreach ($orderData['items'] as $item) {\n                $order-&gt;details()-&gt;create([\n                    'product_id' =&gt; $item['product_id'],\n                    'quantity' =&gt; $item['quantity'],\n                    'price' =&gt; $item['price']\n                ]);\n            }\n\n            \/\/ 4. \u30dd\u30a4\u30f3\u30c8\u51e6\u7406\n            $this-&gt;pointService-&gt;processOrderPoints($user, $order);\n\n            \/\/ 5. \u6ce8\u6587\u30b9\u30c6\u30fc\u30bf\u30b9\u306e\u66f4\u65b0\n            $order-&gt;update(['status' =&gt; 'completed']);\n\n            return $order;\n        });\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">\u30cd\u30b9\u30c8\u3057\u305f\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u53d6\u308a\u6271\u3044<\/h3>\n\n\n\n<p>Laravel\u3067\u306f\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3092\u30cd\u30b9\u30c8\u3057\u3066\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u7279\u306b\u3001\u8907\u6570\u306e\u30b5\u30fc\u30d3\u30b9\u30ec\u30a4\u30e4\u30fc\u3092\u307e\u305f\u3050\u51e6\u7406\u3067\u6709\u7528\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 PaymentService\n{\n    public function processPayment(Order $order)\n    {\n        return DB::transaction(function () use ($order) {\n            \/\/ \u652f\u6255\u3044\u51e6\u7406\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\n\n            \/\/ \u6ce8\u6587\u51e6\u7406\u306e\u30b5\u30d6\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\n            DB::transaction(function () use ($order) {\n                \/\/ \u6ce8\u6587\u30b9\u30c6\u30fc\u30bf\u30b9\u306e\u66f4\u65b0\n                \/\/ \u5728\u5eab\u306e\u66f4\u65b0\n                \/\/ \u30dd\u30a4\u30f3\u30c8\u306e\u4ed8\u4e0e\n            });\n\n            \/\/ \u8acb\u6c42\u66f8\u306e\u767a\u884c\n            return $this-&gt;generateInvoice($order);\n        });\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u30bb\u30fc\u30d6\u30dd\u30a4\u30f3\u30c8\u3092\u6d3b\u7528\u3057\u305f\u67d4\u8edf\u306a\u5236\u5fa1<\/h3>\n\n\n\n<p>\u30bb\u30fc\u30d6\u30dd\u30a4\u30f3\u30c8\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5185\u306e\u7279\u5b9a\u306e\u30dd\u30a4\u30f3\u30c8\u307e\u3067\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u3059\u308b\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 ComplexOperation\n{\n    public function execute()\n    {\n        DB::beginTransaction();\n\n        try {\n            \/\/ \u57fa\u672c\u30c7\u30fc\u30bf\u306e\u4f5c\u6210\n            $baseData = $this-&gt;createBaseData();\n\n            \/\/ \u30bb\u30fc\u30d6\u30dd\u30a4\u30f3\u30c8\u306e\u4f5c\u6210\n            $savepoint1 = 'step_1';\n            DB::statement(\"SAVEPOINT {$savepoint1}\");\n\n            try {\n                \/\/ \u30ea\u30b9\u30af\u306e\u9ad8\u3044\u64cd\u4f5c\n                $this-&gt;riskyOperation();\n            } catch (\\Exception $e) {\n                \/\/ \u30bb\u30fc\u30d6\u30dd\u30a4\u30f3\u30c8\u307e\u3067\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\n                DB::statement(\"ROLLBACK TO SAVEPOINT {$savepoint1}\");\n                \/\/ \u4ee3\u66ff\u306e\u64cd\u4f5c\u3092\u5b9f\u884c\n                $this-&gt;alternativeOperation();\n            }\n\n            \/\/ \u6700\u7d42\u51e6\u7406\n            $this-&gt;finalizeOperation();\n\n            DB::commit();\n        } catch (\\Exception $e) {\n            DB::rollBack();\n            throw $e;\n        }\n    }\n}<\/pre>\n\n\n\n<p>\u30bb\u30fc\u30d6\u30dd\u30a4\u30f3\u30c8\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u6ce8\u610f\u70b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5bfe\u5fdc<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528\u3059\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304c\u30bb\u30fc\u30d6\u30dd\u30a4\u30f3\u30c8\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d<\/li>\n\n\n\n<li>PostgreSQL\u3001MySQL\u306a\u3069\u4e3b\u8981\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306f\u30b5\u30dd\u30fc\u30c8<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3078\u306e\u5f71\u97ff<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30bb\u30fc\u30d6\u30dd\u30a4\u30f3\u30c8\u306e\u904e\u5ea6\u306a\u4f7f\u7528\u306f\u907f\u3051\u308b<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u5897\u52a0\u306b\u6ce8\u610f<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u547d\u540d\u898f\u5247<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30bb\u30fc\u30d6\u30dd\u30a4\u30f3\u30c8\u540d\u306f\u4e00\u610f\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308b<\/li>\n\n\n\n<li>\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3092\u4f7f\u7528\u3057\u305f\u660e\u78ba\u306a\u547d\u540d\u3092\u63a8\u5968<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u5b9f\u8df5\u7684\u306a\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u3067\u306f\u3001\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306e\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u30d1\u30bf\u30fc\u30f3\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u5b9f\u88c5\u3059\u308b\u969b\u306e\u6ce8\u610f\u70b9\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\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-18\">\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u306e\u6ce8\u610f\u70b9\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-19\">\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u3092\u9632\u3050\u305f\u3081\u306e\u8a2d\u8a08\u65b9\u91dd<\/h3>\n\n\n\n<p>\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u306f\u4e26\u884c\u51e6\u7406\u306b\u304a\u3044\u3066\u6df1\u523b\u306a\u554f\u984c\u3068\u306a\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u3092\u9632\u3050\u305f\u3081\u306e\u5177\u4f53\u7684\u306a\u65b9\u91dd\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-20\">1. \u30c6\u30fc\u30d6\u30eb\u30a2\u30af\u30bb\u30b9\u9806\u5e8f\u306e\u7d71\u4e00<\/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 OrderService\n{\n    public function processOrder(Order $order)\n    {\n        return DB::transaction(function () use ($order) {\n            \/\/ \u5e38\u306b\u4ee5\u4e0b\u306e\u9806\u5e8f\u3067\u30c6\u30fc\u30d6\u30eb\u3092\u30ed\u30c3\u30af\n            \/\/ 1. users\n            \/\/ 2. products\n            \/\/ 3. orders\n            \/\/ 4. order_details\n\n            $user = DB::table('users')\n                -&gt;where('id', $order-&gt;user_id)\n                -&gt;lockForUpdate()\n                -&gt;first();\n\n            $product = DB::table('products')\n                -&gt;where('id', $order-&gt;product_id)\n                -&gt;lockForUpdate()\n                -&gt;first();\n\n            \/\/ \u4ee5\u964d\u306e\u51e6\u7406...\n        });\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-21\">2. \u30ed\u30c3\u30af\u53d6\u5f97\u306e\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u8a2d\u5b9a<\/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=\"\">\/\/ \u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3092\u8a2d\u5b9a\u3057\u3066\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u3092\u56de\u907f\nConfig::set('database.connections.mysql.lock_timeout', 3);\n\nDB::transaction(function () {\n    \/\/ \u30ed\u30c3\u30af\u53d6\u5f97\u306e\u8a66\u884c\uff083\u79d2\u3067\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\uff09\n    $result = DB::table('orders')\n        -&gt;lockForUpdate()\n        -&gt;first();\n});<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-22\">\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u9632\u6b62\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h4>\n\n\n<div id=\"id-ef64700c-767c-4520-a2a8-42dee40c3bd3\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5bfe\u7b56<\/th><th>\u8aac\u660e<\/th><th>\u5b9f\u88c5\u65b9\u6cd5<\/th><\/tr><\/thead><tbody><tr><td>\u30a2\u30af\u30bb\u30b9\u9806\u5e8f\u306e\u7d71\u4e00<\/td><td>\u5168\u3066\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3067\u540c\u3058\u9806\u5e8f\u3067\u30c6\u30fc\u30d6\u30eb\u3092\u30ed\u30c3\u30af<\/td><td>\u30c6\u30fc\u30d6\u30eb\u306e\u4f9d\u5b58\u95a2\u4fc2\u306b\u57fa\u3065\u3044\u3066\u9806\u5e8f\u3092\u6c7a\u5b9a<\/td><\/tr><tr><td>\u30ed\u30c3\u30af\u306e\u6700\u5c0f\u5316<\/td><td>\u5fc5\u8981\u6700\u5c0f\u9650\u306e\u30ec\u30b3\u30fc\u30c9\u306e\u307f\u3092\u30ed\u30c3\u30af<\/td><td>WHERE\u53e5\u306e\u9069\u5207\u306a\u4f7f\u7528<\/td><\/tr><tr><td>\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u306e\u8a2d\u5b9a<\/td><td>\u7121\u9650\u5f85\u6a5f\u3092\u9632\u6b62<\/td><td>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u5b9a\u3084\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30d9\u30eb\u3067\u306e\u5236\u5fa1<\/td><\/tr><tr><td>\u697d\u89b3\u7684\u30ed\u30c3\u30af\u306e\u6d3b\u7528<\/td><td>\u53ef\u80fd\u306a\u5834\u5408\u306f\u697d\u89b3\u7684\u30ed\u30c3\u30af\u3092\u4f7f\u7528<\/td><td>\u30d0\u30fc\u30b8\u30e7\u30f3\u30ab\u30e9\u30e0\u306e\u5229\u7528<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"i-23\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u8003\u616e\u3057\u305f\u5b9f\u88c5\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-24\">1. \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u7bc4\u56f2\u6700\u9069\u5316<\/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 OrderOptimizer\n{\n    public function processOrder(array $orderData)\n    {\n        \/\/ \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5916\u3067\u5b9f\u884c\u53ef\u80fd\u306a\u51e6\u7406\n        $this-&gt;validateOrderData($orderData);\n        $this-&gt;prepareOrderResources($orderData);\n\n        \/\/ \u5fc5\u8981\u6700\u5c0f\u9650\u306e\u51e6\u7406\u306e\u307f\u3092\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5185\u3067\u5b9f\u884c\n        return DB::transaction(function () use ($orderData) {\n            $order = $this-&gt;createOrder($orderData);\n            $this-&gt;updateInventory($orderData);\n            return $order;\n        });\n    }\n\n    private function validateOrderData(array $data)\n    {\n        \/\/ \u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u51e6\u7406\uff08\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5916\uff09\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-25\">2. \u30d0\u30c3\u30c1\u51e6\u7406\u306e\u6700\u9069\u5316<\/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 BatchProcessor\n{\n    public function processBatch(array $items)\n    {\n        \/\/ \u30c1\u30e3\u30f3\u30af\u5358\u4f4d\u3067\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3092\u5b9f\u884c\n        collect($items)-&gt;chunk(100)-&gt;each(function ($chunk) {\n            DB::transaction(function () use ($chunk) {\n                foreach ($chunk as $item) {\n                    \/\/ \u51e6\u7406\u5b9f\u884c\n                }\n            });\n        });\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-26\">\u30c6\u30b9\u30c8\u6642\u306e\u52b9\u679c\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1<\/h3>\n\n\n\n<p>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u306e\u30c6\u30b9\u30c8\u306f\u7279\u306b\u91cd\u8981\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u52b9\u679c\u7684\u306a\u30c6\u30b9\u30c8\u65b9\u6cd5\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-27\">1. \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3092\u5229\u7528\u3057\u305f\u30c6\u30b9\u30c8<\/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=\"\">use Tests\\TestCase;\nuse Illuminate\\Foundation\\Testing\\DatabaseTransactions;\n\nclass OrderServiceTest extends TestCase\n{\n    use DatabaseTransactions;\n\n    public function testOrderCreation()\n    {\n        \/\/ \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u306e\u6e96\u5099\n        $orderData = [\n            'user_id' =&gt; 1,\n            'product_id' =&gt; 1,\n            'quantity' =&gt; 2\n        ];\n\n        \/\/ \u30b5\u30fc\u30d3\u30b9\u306e\u5b9f\u884c\n        $orderService = new OrderService();\n        $result = $orderService-&gt;createOrder($orderData);\n\n        \/\/ \u30a2\u30b5\u30fc\u30b7\u30e7\u30f3\n        $this-&gt;assertDatabaseHas('orders', [\n            'id' =&gt; $result-&gt;id,\n            'user_id' =&gt; $orderData['user_id']\n        ]);\n\n        $this-&gt;assertDatabaseHas('inventory', [\n            'product_id' =&gt; $orderData['product_id'],\n            \/\/ \u5728\u5eab\u304c\u6e1b\u5c11\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\n        ]);\n    }\n\n    public function testConcurrentOrders()\n    {\n        \/\/ \u540c\u6642\u5b9f\u884c\u306e\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\n        $promises = [];\n        for ($i = 0; $i &lt; 5; $i++) {\n            $promises[] = async(function () {\n                return $this-&gt;orderService-&gt;createOrder([...]);\n            });\n        }\n\n        \/\/ \u5168\u3066\u306e\u51e6\u7406\u304c\u6b63\u5e38\u306b\u5b8c\u4e86\u3059\u308b\u3053\u3068\u3092\u78ba\u8a8d\n        $results = await($promises);\n        $this-&gt;assertCount(5, $results);\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-28\">\u30c6\u30b9\u30c8\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5206\u96e2\u6027\u306e\u78ba\u4fdd<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u9593\u306e\u72ec\u7acb\u6027\u3092\u4fdd\u6301<\/li>\n\n\n\n<li><code>DatabaseTransactions<\/code> \u30c8\u30ec\u30a4\u30c8\u306e\u6d3b\u7528<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a8\u30c3\u30b8\u30b1\u30fc\u30b9\u306e\u30c6\u30b9\u30c8<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u30b7\u30ca\u30ea\u30aa<\/li>\n\n\n\n<li>\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u6761\u4ef6<\/li>\n\n\n\n<li>\u4e26\u884c\u51e6\u7406\u306e\u7af6\u5408<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c6\u30b9\u30c8<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5927\u91cf\u30c7\u30fc\u30bf\u3067\u306e\u52d5\u4f5c\u78ba\u8a8d<\/li>\n\n\n\n<li>\u5b9f\u884c\u6642\u9593\u306e\u8a08\u6e2c<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u76e3\u8996<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6ce8\u610f\u70b9\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u610f\u8b58\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5805\u7262\u306a\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u77e5\u8b58\u3092\u6d3b\u304b\u3057\u305f\u5b9f\u52d9\u3067\u306e\u5177\u4f53\u7684\u306a\u6d3b\u7528\u4f8b\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-29\">\u5b9f\u52d9\u3067\u4f7f\u3048\u308b\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u6d3b\u7528\u4f8b<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-30\">EC\u30b5\u30a4\u30c8\u306e\u6ce8\u6587\u51e6\u7406\u3067\u306e\u5b9f\u88c5\u4f8b<\/h3>\n\n\n\n<p>EC\u30b5\u30a4\u30c8\u306e\u6ce8\u6587\u51e6\u7406\u306f\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u91cd\u8981\u6027\u304c\u6700\u3082\u9855\u8457\u306b\u8868\u308c\u308b\u4f8b\u306e\u4e00\u3064\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u5b9f\u52d9\u3067\u4f7f\u3048\u308b\u5177\u4f53\u7684\u306a\u5b9f\u88c5\u4f8b\u3092\u793a\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=\"\">namespace App\\Services;\n\nuse App\\Models\\Order;\nuse App\\Models\\Product;\nuse App\\Models\\User;\nuse App\\Exceptions\\StockShortageException;\nuse App\\Exceptions\\PaymentFailedException;\nuse Illuminate\\Support\\Facades\\DB;\nuse Illuminate\\Support\\Facades\\Log;\n\nclass OrderService\n{\n    public function createOrder(array $orderData, User $user)\n    {\n        \/\/ \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5916\u3067\u306e\u4e8b\u524d\u691c\u8a3c\n        $this-&gt;validateOrderData($orderData);\n\n        return DB::transaction(function () use ($orderData, $user) {\n            \/\/ \u5728\u5eab\u306e\u78ba\u8a8d\uff08\u60b2\u89b3\u7684\u30ed\u30c3\u30af\uff09\n            $product = Product::lockForUpdate()-&gt;find($orderData['product_id']);\n            if ($product-&gt;stock &lt; $orderData['quantity']) {\n                throw new StockShortageException('\u5728\u5eab\u304c\u4e0d\u8db3\u3057\u3066\u3044\u307e\u3059');\n            }\n\n            \/\/ \u6ce8\u6587\u306e\u4f5c\u6210\n            $order = Order::create([\n                'user_id' =&gt; $user-&gt;id,\n                'total_amount' =&gt; $product-&gt;price * $orderData['quantity'],\n                'status' =&gt; 'processing'\n            ]);\n\n            \/\/ \u6ce8\u6587\u8a73\u7d30\u306e\u4f5c\u6210\n            $order-&gt;details()-&gt;create([\n                'product_id' =&gt; $product-&gt;id,\n                'quantity' =&gt; $orderData['quantity'],\n                'price' =&gt; $product-&gt;price\n            ]);\n\n            \/\/ \u5728\u5eab\u306e\u66f4\u65b0\n            $product-&gt;decrement('stock', $orderData['quantity']);\n\n            \/\/ \u30dd\u30a4\u30f3\u30c8\u306e\u4ed8\u4e0e\uff081%\uff09\n            $points = (int)($order-&gt;total_amount * 0.01);\n            $user-&gt;increment('points', $points);\n\n            return $order;\n        });\n    }\n}<\/pre>\n\n\n\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u7bc4\u56f2<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u5eab\u78ba\u8a8d\u304b\u3089\u6ce8\u6587\u4f5c\u6210\u3001\u30dd\u30a4\u30f3\u30c8\u4ed8\u4e0e\u307e\u3067\u3092\u4e00\u62ec\u3067\u51e6\u7406<\/li>\n\n\n\n<li>\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u306f\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5916\u3067\u5b9f\u884c<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5177\u4f53\u7684\u306a\u4f8b\u5916\u30af\u30e9\u30b9\u3092\u4f7f\u7528<\/li>\n\n\n\n<li>\u5728\u5eab\u4e0d\u8db3\u306a\u3069\u3001\u60f3\u5b9a\u3055\u308c\u308b\u30a8\u30e9\u30fc\u306b\u5bfe\u3059\u308b\u9069\u5207\u306a\u51e6\u7406<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-31\">\u30dd\u30a4\u30f3\u30c8\u4ed8\u4e0e\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u6d3b\u7528\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u30dd\u30a4\u30f3\u30c8\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u30dd\u30a4\u30f3\u30c8\u306e\u4ed8\u4e0e\u3068\u4f7f\u7528\u3067\u78ba\u5b9f\u306a\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5236\u5fa1\u304c\u5fc5\u8981\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 PointService\n{\n    public function usePoints(User $user, int $requiredPoints, string $purpose)\n    {\n        return DB::transaction(function () use ($user, $requiredPoints, $purpose) {\n            \/\/ \u6700\u65b0\u306e\u30e6\u30fc\u30b6\u30fc\u60c5\u5831\u3092\u53d6\u5f97\uff08\u697d\u89b3\u7684\u30ed\u30c3\u30af\uff09\n            $user-&gt;refresh();\n\n            if ($user-&gt;points &lt; $requiredPoints) {\n                throw new InsufficientPointsException('\u30dd\u30a4\u30f3\u30c8\u304c\u4e0d\u8db3\u3057\u3066\u3044\u307e\u3059');\n            }\n\n            \/\/ \u30dd\u30a4\u30f3\u30c8\u5c65\u6b74\u306e\u8a18\u9332\n            PointHistory::create([\n                'user_id' =&gt; $user-&gt;id,\n                'points' =&gt; -$requiredPoints,\n                'purpose' =&gt; $purpose,\n                'balance' =&gt; $user-&gt;points - $requiredPoints\n            ]);\n\n            \/\/ \u30dd\u30a4\u30f3\u30c8\u306e\u6e1b\u7b97\n            $user-&gt;decrement('points', $requiredPoints);\n\n            return $user-&gt;fresh();\n        });\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-32\">\u30d0\u30c3\u30c1\u51e6\u7406\u3067\u306e\u52b9\u679c\u7684\u306a\u4f7f\u3044\u65b9<\/h3>\n\n\n\n<p>\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u51e6\u7406\u3092\u884c\u3046\u30d0\u30c3\u30c1\u51e6\u7406\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5b9f\u88c5\u304c\u52b9\u679c\u7684\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 ImportService\n{\n    public function importCustomerData(array $records)\n    {\n        \/\/ 1000\u4ef6\u305a\u3064\u306b\u5206\u5272\u3057\u3066\u51e6\u7406\n        collect($records)-&gt;chunk(1000)-&gt;each(function ($chunk) {\n            DB::transaction(function () use ($chunk) {\n                foreach ($chunk as $record) {\n                    try {\n                        \/\/ \u9867\u5ba2\u30c7\u30fc\u30bf\u306e\u4f5c\u6210\n                        $customer = Customer::create([\n                            'name' =&gt; $record['name'],\n                            'email' =&gt; $record['email']\n                        ]);\n\n                        \/\/ \u95a2\u9023\u30c7\u30fc\u30bf\u306e\u4f5c\u6210\n                        $customer-&gt;profile()-&gt;create([\n                            'phone' =&gt; $record['phone'],\n                            'address' =&gt; $record['address']\n                        ]);\n\n                        \/\/ \u51e6\u7406\u5c65\u6b74\u306e\u8a18\u9332\n                        ImportLog::create([\n                            'record_id' =&gt; $record['id'],\n                            'status' =&gt; 'success'\n                        ]);\n\n                    } catch (\\Exception $e) {\n                        \/\/ \u30a8\u30e9\u30fc\u30ed\u30b0\u306e\u8a18\u9332\n                        ImportLog::create([\n                            'record_id' =&gt; $record['id'],\n                            'status' =&gt; 'error',\n                            'error_message' =&gt; $e-&gt;getMessage()\n                        ]);\n\n                        \/\/ \u6b21\u306e\u30ec\u30b3\u30fc\u30c9\u3078\u7d99\u7d9a\n                        continue;\n                    }\n                }\n            });\n        });\n    }\n}<\/pre>\n\n\n\n<p>\u30d0\u30c3\u30c1\u51e6\u7406\u3067\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c1\u30e3\u30f3\u30af\u30b5\u30a4\u30ba\u306e\u9069\u5207\u306a\u8a2d\u5b9a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u8003\u616e<\/li>\n\n\n\n<li>\u51e6\u7406\u6642\u9593\u306e\u6700\u9069\u5316<\/li>\n\n\n\n<li>\u30ed\u30c3\u30af\u306e\u4fdd\u6301\u6642\u9593\u306e\u6700\u5c0f\u5316<\/li>\n<\/ul>\n\n\n\n<ol 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class=\"wp-block-list\">\n<li><strong>\u9069\u5207\u306a\u7c92\u5ea6\u306e\u8a2d\u5b9a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5fc5\u8981\u6700\u5c0f\u9650\u306e\u51e6\u7406\u306e\u307f\u3092\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5185\u306b\u542b\u3081\u308b<\/li>\n\n\n\n<li>\u9577\u6642\u9593\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3092\u907f\u3051\u308b<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a8\u30e9\u30fc\u6642\u306e\u52d5\u4f5c\u8a2d\u8a08<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u6642\u306e\u5f71\u97ff\u7bc4\u56f2\u3092\u628a\u63e1<\/li>\n\n\n\n<li>\u88dc\u511f\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u691c\u8a0e<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u76e3\u8996\u3068\u30ed\u30b0<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u5b9f\u884c\u6642\u9593\u306e\u76e3\u8996<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u767a\u751f\u6642\u306e\u8a73\u7d30\u306a\u30ed\u30b0\u8a18\u9332<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u88c5\u4f8b\u3068\u6ce8\u610f\u70b9\u3092\u53c2\u8003\u306b\u3001\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3092\u52b9\u679c\u7684\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u91cd\u8981\u306a\u306e\u306f\u3001\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306e\u8981\u4ef6\u3092\u7406\u89e3\u3057\u3001\u9069\u5207\u306a\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u8a2d\u8a08\u3092\u884c\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array 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