{"id":2548,"date":"2025-03-24T08:47:04","date_gmt":"2025-03-23T23:47:04","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=2548"},"modified":"2025-03-24T08:47:34","modified_gmt":"2025-03-23T23:47:34","slug":"%e3%80%90laravel%e3%80%91%e3%83%87%e3%83%bc%e3%82%bf%e5%89%8a%e9%99%a4%e3%81%ae%e6%b1%ba%e5%ae%9a%e7%89%88%ef%bc%815%e3%81%a4%e3%81%ae%e5%ae%9f%e8%b7%b5%e7%9a%84%e3%81%aa%e5%ae%9f%e8%a3%85%e6%96%b9","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=2548","title":{"rendered":"\u3010Laravel\u3011\u30c7\u30fc\u30bf\u524a\u9664\u306e\u6c7a\u5b9a\u7248\uff015\u3064\u306e\u5b9f\u8df5\u7684\u306a\u5b9f\u88c5\u65b9\u6cd5\u3068\u4f7f\u3044\u5206\u3051\u306e\u30b3\u30c4"},"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\u3067\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3059\u308b\u57fa\u672c\u7684\u306a\u65b9\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">delete()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u305f\u5358\u4e00\u30ec\u30b3\u30fc\u30c9\u306e\u524a\u9664\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-2\">destroy()\u30e1\u30bd\u30c3\u30c9\u306b\u3088\u308b\u8907\u6570\u30ec\u30b3\u30fc\u30c9\u306e\u4e00\u62ec\u524a\u9664<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-3\">where\u306b\u3088\u308b\u6761\u4ef6\u4ed8\u304d\u524a\u9664\u306e\u5b9f\u88c5\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-4\">\u30bd\u30d5\u30c8\u30c7\u30ea\u30fc\u30c8\u6a5f\u80fd\u306e\u5b9f\u88c5\u3068\u6d3b\u7528\u65b9\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-5\">\u30bd\u30d5\u30c8\u30c7\u30ea\u30fc\u30c8\u3092\u4f7f\u3046\u3079\u304d3\u3064\u306e\u30b1\u30fc\u30b9<\/a>      <\/li>      <li>        <a href=\"#i-6\">SoftDeletes\u30c8\u30ec\u30a4\u30c8\u306e\u6b63\u3057\u3044\u5b9f\u88c5\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-7\">\u524a\u9664\u6e08\u307f\u30c7\u30fc\u30bf\u306e\u5fa9\u5143\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-8\">\u30ab\u30b9\u30b1\u30fc\u30c9\u524a\u9664\u306e\u5b9f\u88c5\u65b9\u6cd5\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-9\">\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u3092\u8003\u616e\u3057\u305f\u5b89\u5168\u306a\u524a\u9664\u51e6\u7406<\/a>      <\/li>      <li>        <a href=\"#i-10\">onDelete\u30ab\u30b9\u30b1\u30fc\u30c9\u306e\u9069\u5207\u306a\u4f7f\u3044\u65b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-11\">\u524a\u9664\u524d\u5f8c\u306e\u51e6\u7406\u3092\u30d5\u30c3\u30af\u3059\u308b\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-12\">\u5927\u91cf\u30c7\u30fc\u30bf\u306e\u524a\u9664\u306b\u304a\u3051\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-13\">chunk()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u305f\u52b9\u7387\u7684\u306a\u524a\u9664\u51e6\u7406<\/a>      <\/li>      <li>        <a href=\"#i-14\">\u30ad\u30e5\u30fc\u3092\u6d3b\u7528\u3057\u305f\u975e\u540c\u671f\u524a\u9664\u306e\u5b9f\u88c5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-15\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-16\">\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u30c7\u30d0\u30c3\u30b0\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-17\">\u3088\u304f\u3042\u308b\u524a\u9664\u30a8\u30e9\u30fc\u3068\u305d\u306e\u89e3\u6c7a\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-18\">\u524a\u9664\u64cd\u4f5c\u306e\u30ed\u30b0\u7ba1\u7406\u3068\u8ffd\u8de1\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-19\">\u30c6\u30b9\u30c8\u74b0\u5883\u3067\u306e\u524a\u9664\u51e6\u7406\u306e\u691c\u8a3c\u65b9\u6cd5<\/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\u3067\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3059\u308b\u57fa\u672c\u7684\u306a\u65b9\u6cd5<\/h2>\n\n\n\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304b\u3089\u306e\u30ec\u30b3\u30fc\u30c9\u524a\u9664\u306f\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u64cd\u4f5c\u306e1\u3064\u3067\u3059\u3002Laravel\u306f\u3001\u5b89\u5168\u304b\u3064\u52b9\u7387\u7684\u306b\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3059\u308b\u305f\u3081\u306e\u8907\u6570\u306e\u65b9\u6cd5\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u308c\u305e\u308c\u306e\u65b9\u6cd5\u306e\u7279\u5fb4\u3068\u9069\u5207\u306a\u4f7f\u7528\u5834\u9762\u306b\u3064\u3044\u3066\u3001\u5177\u4f53\u7684\u306b\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">delete()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u305f\u5358\u4e00\u30ec\u30b3\u30fc\u30c9\u306e\u524a\u9664\u65b9\u6cd5<\/h3>\n\n\n\n<p><code>delete()<\/code>\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u5358\u4e00\u306e\u30e2\u30c7\u30eb\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u524a\u9664\u3059\u308b\u305f\u3081\u306e\u6700\u3082\u57fa\u672c\u7684\u306a\u65b9\u6cd5\u3067\u3059\u3002\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u7279\u5b9a\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u6b63\u78ba\u306b\u6307\u5b9a\u3057\u3066\u524a\u9664\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306b\u4f7f\u7528\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=\"\">\/\/ \u57fa\u672c\u7684\u306a\u4f7f\u7528\u65b9\u6cd5\n$user = User::find(1);\n$user-&gt;delete();\n\n\/\/ \u30e1\u30bd\u30c3\u30c9\u30c1\u30a7\u30fc\u30f3\u3067\u306e\u4f7f\u7528\nUser::find(1)-&gt;delete();\n\n\/\/ \u6761\u4ef6\u306b\u5408\u81f4\u3059\u308b\u5358\u4e00\u30ec\u30b3\u30fc\u30c9\u306e\u524a\u9664\n$oldPost = Post::where('published_at', '&lt;', '2023-01-01')\n    -&gt;first()\n    -&gt;delete();<\/pre>\n\n\n\n<p>delete()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5b58\u5728\u78ba\u8a8d\u306e\u91cd\u8981\u6027<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u63a8\u5968\u3055\u308c\u308b\u5b9f\u88c5\u65b9\u6cd5\n$user = User::find($id);\nif ($user) {\n    $user-&gt;delete();\n    return response()-&gt;json(['message' =&gt; '\u524a\u9664\u6210\u529f']);\n}\nreturn response()-&gt;json(['message' =&gt; '\u30e6\u30fc\u30b6\u30fc\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093'], 404);<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u524a\u9664\u524d\u306e\u8ffd\u52a0\u51e6\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30e2\u30c7\u30eb\u3067\u306e\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\nclass User extends Model\n{\n    protected static function boot()\n    {\n        parent::boot();\n\n        static::deleting(function($user) {\n            \/\/ \u524a\u9664\u524d\u306e\u51e6\u7406\n            Log::info(\"\u30e6\u30fc\u30b6\u30fc {$user-&gt;id} \u306e\u524a\u9664\u3092\u958b\u59cb\u3057\u307e\u3059\");\n        });\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u306e\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u95a2\u9023\u30c7\u30fc\u30bf\u3092\u542b\u3080\u5b89\u5168\u306a\u524a\u9664\nDB::transaction(function() use ($userId) {\n    $user = User::findOrFail($userId);\n    $user-&gt;profiles()-&gt;delete();  \/\/ \u95a2\u9023\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u306e\u524a\u9664\n    $user-&gt;delete();             \/\/ \u30e6\u30fc\u30b6\u30fc\u306e\u524a\u9664\n});<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">destroy()\u30e1\u30bd\u30c3\u30c9\u306b\u3088\u308b\u8907\u6570\u30ec\u30b3\u30fc\u30c9\u306e\u4e00\u62ec\u524a\u9664<\/h3>\n\n\n\n<p><code>destroy()<\/code>\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u6307\u5b9a\u3055\u308c\u305fID\u306b\u57fa\u3065\u3044\u30661\u3064\u307e\u305f\u306f\u8907\u6570\u306e\u30e2\u30c7\u30eb\u3092\u524a\u9664\u3067\u304d\u308b\u4fbf\u5229\u306a\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002\u4e3b\u30ad\u30fc\u3092\u6307\u5b9a\u3057\u3066\u76f4\u63a5\u524a\u9664\u3092\u884c\u3046\u305f\u3081\u3001\u30e2\u30c7\u30eb\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4e8b\u524d\u306b\u53d6\u5f97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5358\u4e00ID\u306e\u524a\u9664\nUser::destroy(1);\n\n\/\/ \u8907\u6570ID\u306e\u524a\u9664\nUser::destroy([1, 2, 3]);\n\n\/\/ \u53ef\u5909\u5f15\u6570\u3067\u306e\u8907\u6570\u6307\u5b9a\nUser::destroy(1, 2, 3);\n\n\/\/ \u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u305f\u524a\u9664\n$userIds = User::where('active', false)\n    -&gt;pluck('id');\nUser::destroy($userIds);<\/pre>\n\n\n\n<p>destroy()\u30e1\u30bd\u30c3\u30c9\u306e\u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u4f8b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d0\u30c3\u30c1\u51e6\u7406\u3067\u306e\u5229\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u7279\u5b9a\u6761\u4ef6\u306e\u8907\u6570\u30ec\u30b3\u30fc\u30c9\u3092\u52b9\u7387\u7684\u306b\u524a\u9664\n$inactiveUserIds = User::where('last_login_at', '&lt;', now()-&gt;subYears(2))\n    -&gt;pluck('id')\n    -&gt;chunk(1000)\n    -&gt;each(function ($ids) {\n        User::destroy($ids);\n    });<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\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=\"\">try {\n    $deleted = User::destroy($userIds);\n    Log::info(\"{$deleted}\u4ef6\u306e\u30e6\u30fc\u30b6\u30fc\u3092\u524a\u9664\u3057\u307e\u3057\u305f\");\n} catch (\\Exception $e) {\n    Log::error(\"\u30e6\u30fc\u30b6\u30fc\u524a\u9664\u4e2d\u306b\u30a8\u30e9\u30fc\u304c\u767a\u751f: \" . $e-&gt;getMessage());\n    throw $e;\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-3\">where\u306b\u3088\u308b\u6761\u4ef6\u4ed8\u304d\u524a\u9664\u306e\u5b9f\u88c5\u65b9\u6cd5<\/h3>\n\n\n\n<p><code>where<\/code>\u53e5\u3092\u4f7f\u7528\u3057\u305f\u524a\u9664\u306f\u3001\u7279\u5b9a\u306e\u6761\u4ef6\u306b\u5408\u81f4\u3059\u308b\u30ec\u30b3\u30fc\u30c9\u3092\u307e\u3068\u3081\u3066\u524a\u9664\u3059\u308b\u5834\u5408\u306b\u975e\u5e38\u306b\u4fbf\u5229\u3067\u3059\u3002\u8907\u6570\u306e\u6761\u4ef6\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u67d4\u8edf\u306a\u524a\u9664\u51e6\u7406\u3092\u5b9f\u88c5\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=\"\">\/\/ \u57fa\u672c\u7684\u306a\u6761\u4ef6\u4ed8\u304d\u524a\u9664\nUser::where('active', false)-&gt;delete();\n\n\/\/ \u8907\u6570\u6761\u4ef6\u3067\u306e\u524a\u9664\nPost::where('status', 'draft')\n    -&gt;where('created_at', '&lt;', now()-&gt;subMonths(6))\n    -&gt;delete();\n\n\/\/ OR\u6761\u4ef6\u3067\u306e\u524a\u9664\nUser::where('status', 'inactive')\n    -&gt;orWhere('last_login_at', '&lt;', now()-&gt;subYear())\n    -&gt;delete();<\/pre>\n\n\n\n<p>\u6761\u4ef6\u4ed8\u304d\u524a\u9664\u306e\u5b9f\u8df5\u7684\u306a\u30d1\u30bf\u30fc\u30f3\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u52d5\u7684\u306a\u6761\u4ef6\u8a2d\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=\"\">class UserController extends Controller\n{\n    public function bulkDelete(Request $request)\n    {\n        $query = User::query();\n\n        if ($request-&gt;has('status')) {\n            $query-&gt;where('status', $request-&gt;status);\n        }\n\n        if ($request-&gt;has('date_from')) {\n            $query-&gt;where('created_at', '&gt;=', $request-&gt;date_from);\n        }\n\n        $deleted = $query-&gt;delete();\n        return response()-&gt;json(['deleted_count' =&gt; $deleted]);\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30b5\u30d6\u30af\u30a8\u30ea\u3092\u4f7f\u7528\u3057\u305f\u9ad8\u5ea6\u306a\u6761\u4ef6\u6307\u5b9a<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u95a2\u9023\u30c6\u30fc\u30d6\u30eb\u306e\u6761\u4ef6\u306b\u57fa\u3065\u304f\u524a\u9664\nPost::whereHas('comments', function($query) {\n    $query-&gt;where('is_spam', true);\n})-&gt;delete();\n\n\/\/ \u7279\u5b9a\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u30ec\u30b3\u30fc\u30c9\u306e\u524a\u9664\nUser::whereDoesntHave('orders', function($query) {\n    $query-&gt;where('created_at', '&gt;=', now()-&gt;subYear());\n})-&gt;delete();<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u5b89\u5168\u6027\u3092\u8003\u616e\u3057\u305f\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u524a\u9664\u524d\u306e\u4ef6\u6570\u78ba\u8a8d\u3068\u30ed\u30b0\u8a18\u9332\n$query = User::where('status', 'inactive');\n$count = $query-&gt;count();\n\nif ($count &gt; 1000) {\n    Log::warning(\"\u5927\u91cf\u306e\u524a\u9664\u64cd\u4f5c\u304c\u5b9f\u884c\u3055\u308c\u307e\u3059: {$count}\u4ef6\");\n    \/\/ \u7ba1\u7406\u8005\u3078\u306e\u901a\u77e5\u51e6\u7406\u306a\u3069\n}\n\nDB::transaction(function() use ($query) {\n    $deleted = $query-&gt;delete();\n    Log::info(\"\u524a\u9664\u5b8c\u4e86: {$deleted}\u4ef6\");\n});<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u57fa\u672c\u7684\u306a\u524a\u9664\u65b9\u6cd5\u3092\u7406\u89e3\u3057\u3001\u9069\u5207\u306b\u4f7f\u3044\u5206\u3051\u308b\u3053\u3068\u3067\u3001\u5b89\u5168\u3067\u52b9\u7387\u7684\u306a\u30c7\u30fc\u30bf\u524a\u9664\u51e6\u7406\u3092\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3088\u308a\u9ad8\u5ea6\u306a\u524a\u9664\u6a5f\u80fd\u3067\u3042\u308b\u300c\u30bd\u30d5\u30c8\u30c7\u30ea\u30fc\u30c8\u300d\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-4\">\u30bd\u30d5\u30c8\u30c7\u30ea\u30fc\u30c8\u6a5f\u80fd\u306e\u5b9f\u88c5\u3068\u6d3b\u7528\u65b9\u6cd5<\/h2>\n\n\n\n<p>\u30bd\u30d5\u30c8\u30c7\u30ea\u30fc\u30c8\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304b\u3089\u30ec\u30b3\u30fc\u30c9\u3092\u7269\u7406\u7684\u306b\u524a\u9664\u305b\u305a\u3001\u524a\u9664\u30d5\u30e9\u30b0\u3084\u524a\u9664\u65e5\u6642\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u8ad6\u7406\u7684\u306a\u524a\u9664\u3092\u5b9f\u73fe\u3059\u308b\u6a5f\u80fd\u3067\u3059\u3002Laravel\u3067\u306f\u3001\u3053\u306e\u6a5f\u80fd\u3092\u7c21\u5358\u306b\u5b9f\u88c5\u3067\u304d\u308b\u4ed5\u7d44\u307f\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">\u30bd\u30d5\u30c8\u30c7\u30ea\u30fc\u30c8\u3092\u4f7f\u3046\u3079\u304d3\u3064\u306e\u30b1\u30fc\u30b9<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30fc\u30bf\u306e\u5c65\u6b74\u7ba1\u7406\u304c\u5fc5\u8981\u306a\u5834\u5408<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u53d6\u5f15\u5c65\u6b74\u3084\u30e6\u30fc\u30b6\u30fc\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306a\u3069\u3001\u76e3\u67fb\u76ee\u7684\u3067\u904e\u53bb\u306e\u30c7\u30fc\u30bf\u3092\u4fdd\u6301\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b<\/li>\n\n\n\n<li>\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u8981\u4ef6\u3067\u4e00\u5b9a\u671f\u9593\u306e\u30c7\u30fc\u30bf\u4fdd\u6301\u304c\u6c42\u3081\u3089\u308c\u308b<\/li>\n\n\n\n<li>\u524a\u9664\u3055\u308c\u305f\u60c5\u5831\u306e\u5206\u6790\u3084\u7d71\u8a08\u304c\u5fc5\u8981\u306a\u5834\u5408<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8aa4\u524a\u9664\u304b\u3089\u306e\u5fa9\u65e7\u5bfe\u5fdc\u304c\u91cd\u8981\u306a\u5834\u5408<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u91cd\u8981\u306a\u9867\u5ba2\u30c7\u30fc\u30bf\u3092\u6271\u3046\u30b7\u30b9\u30c6\u30e0<\/li>\n\n\n\n<li>\u30e6\u30fc\u30b6\u30fc\u304c\u81ea\u5206\u3067\u60c5\u5831\u3092\u524a\u9664\u3067\u304d\u308b\u30b5\u30fc\u30d3\u30b9<\/li>\n\n\n\n<li>\u30c7\u30fc\u30bf\u306e\u5fa9\u5143\u8981\u6c42\u306b\u5bfe\u5fdc\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u30b1\u30fc\u30b9<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u95a2\u9023\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u7dad\u6301\u304c\u8907\u96d1\u306a\u5834\u5408<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6df1\u3044\u968e\u5c64\u306e\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u3092\u6301\u3064\u30c7\u30fc\u30bf<\/li>\n\n\n\n<li>\u8907\u6570\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u307e\u305f\u304c\u308b\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3<\/li>\n\n\n\n<li>\u6bb5\u968e\u7684\u306a\u30c7\u30fc\u30bf\u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7\u304c\u5fc5\u8981\u306a\u30b1\u30fc\u30b9<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-6\">SoftDeletes\u30c8\u30ec\u30a4\u30c8\u306e\u6b63\u3057\u3044\u5b9f\u88c5\u65b9\u6cd5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u57fa\u672c\u7684\u306a\u5b9f\u88c5\u624b\u9806<\/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=\"\">use Illuminate\\Database\\Eloquent\\Model;\nuse Illuminate\\Database\\Eloquent\\SoftDeletes;\n\nclass User extends Model\n{\n    use SoftDeletes;\n\n    \/\/ deleted_at\u30ab\u30e9\u30e0\u306e\u578b\u3092\u6307\u5b9a\uff08\u30aa\u30d7\u30b7\u30e7\u30f3\uff09\n    protected $dates = ['deleted_at'];\n}<\/pre>\n\n\n\n<p>\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210\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=\"\">public function up()\n{\n    Schema::create('users', function (Blueprint $table) {\n        $table-&gt;id();\n        $table-&gt;string('name');\n        $table-&gt;string('email');\n        $table-&gt;softDeletes(); \/\/ deleted_at\u30ab\u30e9\u30e0\u3092\u8ffd\u52a0\n        $table-&gt;timestamps();\n    });\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u30aa\u30d7\u30b7\u30e7\u30f3<\/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 extends Model\n{\n    use SoftDeletes;\n\n    \/\/ \u524a\u9664\u65e5\u6642\u4ee5\u5916\u306e\u30ab\u30e9\u30e0\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\n    const DELETED_AT = 'is_deleted';\n\n    \/\/ \u30ab\u30b9\u30b1\u30fc\u30c9\u30bd\u30d5\u30c8\u30c7\u30ea\u30fc\u30c8\u306e\u8a2d\u5b9a\n    protected $cascadeDeletes = ['posts', 'comments'];\n\n    \/\/ \u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u5b9a\u7fa9\n    public function posts()\n    {\n        return $this-&gt;hasMany(Post::class);\n    }\n\n    public function comments()\n    {\n        return $this-&gt;hasMany(Comment::class);\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u9ad8\u5ea6\u306a\u4f7f\u7528\u65b9\u6cd5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Post extends Model\n{\n    use SoftDeletes;\n\n    \/\/ \u524a\u9664\u524d\u306e\u691c\u8a3c\n    protected static function boot()\n    {\n        parent::boot();\n\n        static::deleting(function($post) {\n            if ($post-&gt;isImportant()) {\n                throw new \\Exception('\u91cd\u8981\u306a\u6295\u7a3f\u306f\u524a\u9664\u3067\u304d\u307e\u305b\u3093');\n            }\n        });\n    }\n\n    \/\/ \u30ab\u30b9\u30bf\u30e0\u30b9\u30b3\u30fc\u30d7\u306e\u8ffd\u52a0\n    public function scopeWithTrashed($query)\n    {\n        return $query-&gt;withTrashed()-&gt;where('user_id', auth()-&gt;id());\n    }\n\n    \/\/ \u524a\u9664\u6761\u4ef6\u306e\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\n    public function delete()\n    {\n        $this-&gt;deleted_reason = request('reason');\n        $this-&gt;deleted_by = auth()-&gt;id();\n        return parent::delete();\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">\u524a\u9664\u6e08\u307f\u30c7\u30fc\u30bf\u306e\u5fa9\u5143\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u57fa\u672c\u7684\u306a\u5fa9\u5143\u64cd\u4f5c<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5358\u4e00\u30ec\u30b3\u30fc\u30c9\u306e\u5fa9\u5143\n$user = User::withTrashed()-&gt;find(1);\n$user-&gt;restore();\n\n\/\/ \u6761\u4ef6\u4ed8\u304d\u4e00\u62ec\u5fa9\u5143\nUser::withTrashed()\n    -&gt;where('deleted_at', '&gt;', now()-&gt;subDays(30))\n    -&gt;restore();<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u95a2\u9023\u30c7\u30fc\u30bf\u3092\u542b\u3080\u5fa9\u5143\u51e6\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class UserController extends Controller\n{\n    public function restore($id)\n    {\n        DB::transaction(function() use ($id) {\n            $user = User::withTrashed()-&gt;findOrFail($id);\n\n            \/\/ \u95a2\u9023\u30c7\u30fc\u30bf\u306e\u5fa9\u5143\n            $user-&gt;posts()-&gt;withTrashed()-&gt;restore();\n            $user-&gt;comments()-&gt;withTrashed()-&gt;restore();\n\n            \/\/ \u30e6\u30fc\u30b6\u30fc\u306e\u5fa9\u5143\n            $user-&gt;restore();\n\n            \/\/ \u5fa9\u5143\u5f8c\u306e\u51e6\u7406\n            event(new UserRestored($user));\n        });\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u5fa9\u5143\u51e6\u7406\u306e\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3<\/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=\"\">\/\/ \u5fa9\u5143\u51e6\u7406\u306e\u30b5\u30fc\u30d3\u30b9\u30af\u30e9\u30b9\nclass RestoreService\n{\n    public function restoreUser($userId)\n    {\n        $user = User::withTrashed()-&gt;findOrFail($userId);\n\n        \/\/ \u5fa9\u5143\u524d\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\n        $this-&gt;validateRestore($user);\n\n        \/\/ \u5fa9\u5143\u51e6\u7406\n        DB::transaction(function() use ($user) {\n            \/\/ \u95a2\u9023\u30c7\u30fc\u30bf\u306e\u5fa9\u5143\n            $this-&gt;restoreRelatedData($user);\n\n            \/\/ \u30e6\u30fc\u30b6\u30fc\u306e\u5fa9\u5143\n            $user-&gt;restore();\n\n            \/\/ \u901a\u77e5\u306e\u9001\u4fe1\n            $this-&gt;sendRestoreNotification($user);\n        });\n    }\n\n    protected function validateRestore($user)\n    {\n        if ($user-&gt;isPermamentlyDeleted()) {\n            throw new RestoreException('\u5b8c\u5168\u306b\u524a\u9664\u3055\u308c\u305f\u30e6\u30fc\u30b6\u30fc\u306f\u5fa9\u5143\u3067\u304d\u307e\u305b\u3093');\n        }\n\n        if (!auth()-&gt;user()-&gt;canRestoreUsers()) {\n            throw new UnauthorizedException('\u5fa9\u5143\u6a29\u9650\u304c\u3042\u308a\u307e\u305b\u3093');\n        }\n    }\n\n    protected function restoreRelatedData($user)\n    {\n        $user-&gt;posts()-&gt;withTrashed()-&gt;each(function ($post) {\n            if ($post-&gt;canBeRestored()) {\n                $post-&gt;restore();\n            }\n        });\n    }\n\n    protected function sendRestoreNotification($user)\n    {\n        Notification::send(\n            $user,\n            new AccountRestored(['restored_at' =&gt; now()])\n        );\n    }\n}<\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li><strong>\u5fa9\u5143\u306eAPI\u5b9f\u88c5\u4f8b<\/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 UserApiController extends Controller\n{\n    public function restore(Request $request, $id)\n    {\n        try {\n            $user = User::withTrashed()-&gt;findOrFail($id);\n\n            \/\/ \u5fa9\u5143\u51e6\u7406\u306e\u5b9f\u884c\n            $restored = $user-&gt;restore();\n\n            \/\/ \u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u8fd4\u5374\n            return response()-&gt;json([\n                'success' =&gt; true,\n                'message' =&gt; '\u30e6\u30fc\u30b6\u30fc\u3092\u5fa9\u5143\u3057\u307e\u3057\u305f',\n                'user' =&gt; $user-&gt;fresh()\n            ]);\n        } catch (\\Exception $e) {\n            return response()-&gt;json([\n                'success' =&gt; false,\n                'message' =&gt; '\u5fa9\u5143\u51e6\u7406\u306b\u5931\u6557\u3057\u307e\u3057\u305f: ' . $e-&gt;getMessage()\n            ], 500);\n        }\n    }\n}<\/pre>\n\n\n\n<p>\u30bd\u30d5\u30c8\u30c7\u30ea\u30fc\u30c8\u6a5f\u80fd\u3092\u9069\u5207\u306b\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u306e\u5b89\u5168\u6027\u3092\u9ad8\u3081\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30cb\u30fc\u30ba\u306b\u67d4\u8edf\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u30b7\u30b9\u30c6\u30e0\u3092\u69cb\u7bc9\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3088\u308a\u8907\u96d1\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u306b\u5bfe\u5fdc\u3059\u308b\u300c\u30ab\u30b9\u30b1\u30fc\u30c9\u524a\u9664\u306e\u5b9f\u88c5\u65b9\u6cd5\u300d\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-8\">\u30ab\u30b9\u30b1\u30fc\u30c9\u524a\u9664\u306e\u5b9f\u88c5\u65b9\u6cd5\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n\n\n\n<p>\u30ab\u30b9\u30b1\u30fc\u30c9\u524a\u9664\u306f\u3001\u89aa\u30ec\u30b3\u30fc\u30c9\u304c\u524a\u9664\u3055\u308c\u305f\u969b\u306b\u3001\u95a2\u9023\u3059\u308b\u5b50\u30ec\u30b3\u30fc\u30c9\u3082\u81ea\u52d5\u7684\u306b\u524a\u9664\u3059\u308b\u6a5f\u80fd\u3067\u3059\u3002\u3053\u306e\u6a5f\u80fd\u3092\u9069\u5207\u306b\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u4fdd\u3061\u306a\u304c\u3089\u3001\u52b9\u7387\u7684\u306a\u30c7\u30fc\u30bf\u7ba1\u7406\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u3092\u8003\u616e\u3057\u305f\u5b89\u5168\u306a\u524a\u9664\u51e6\u7406<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u306e\u5b9a\u7fa9<\/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 extends Model\n{\n    public function posts()\n    {\n        return $this-&gt;hasMany(Post::class);\n    }\n\n    public function profile()\n    {\n        return $this-&gt;hasOne(Profile::class);\n    }\n\n    public function comments()\n    {\n        return $this-&gt;hasMany(Comment::class);\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30e2\u30c7\u30eb\u30a4\u30d9\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u305f\u95a2\u9023\u30c7\u30fc\u30bf\u306e\u524a\u9664<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class User extends Model\n{\n    protected static function boot()\n    {\n        parent::boot();\n\n        static::deleting(function($user) {\n            \/\/ \u524a\u9664\u524d\u306e\u691c\u8a3c\n            if (!$user-&gt;canBeDeleted()) {\n                throw new \\Exception('\u3053\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u524a\u9664\u3067\u304d\u307e\u305b\u3093');\n            }\n\n            \/\/ \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5185\u3067\u95a2\u9023\u30c7\u30fc\u30bf\u3092\u524a\u9664\n            DB::transaction(function() use ($user) {\n                $user-&gt;posts()-&gt;delete();\n                $user-&gt;profile()-&gt;delete();\n                $user-&gt;comments()-&gt;delete();\n            });\n        });\n    }\n\n    public function canBeDeleted()\n    {\n        \/\/ \u524a\u9664\u53ef\u80fd\u304b\u3069\u3046\u304b\u306e\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\n        return !$this-&gt;isAdmin() &amp;&amp; \n               !$this-&gt;hasActiveSubscription() &amp;&amp;\n               $this-&gt;lastActivityAt &lt; now()-&gt;subMonths(6);\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u6df1\u3055\u3092\u8003\u616e\u3057\u305f\u524a\u9664\u51e6\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class DeleteService\n{\n    public function deleteUserData($userId)\n    {\n        $user = User::findOrFail($userId);\n\n        \/\/ \u524a\u9664\u9806\u5e8f\u3092\u5236\u5fa1\n        $this-&gt;deleteUserContent($user);\n        $this-&gt;deleteUserProfile($user);\n        $this-&gt;deleteUserAccount($user);\n    }\n\n    protected function deleteUserContent($user)\n    {\n        \/\/ \u6295\u7a3f\u306b\u95a2\u9023\u3059\u308b\u30c7\u30fc\u30bf\u3092\u5148\u306b\u524a\u9664\n        $user-&gt;posts-&gt;each(function($post) {\n            $post-&gt;attachments()-&gt;delete();\n            $post-&gt;comments()-&gt;delete();\n            $post-&gt;delete();\n        });\n    }\n\n    protected function deleteUserProfile($user)\n    {\n        if ($profile = $user-&gt;profile) {\n            $profile-&gt;socialLinks()-&gt;delete();\n            $profile-&gt;delete();\n        }\n    }\n\n    protected function deleteUserAccount($user)\n    {\n        $user-&gt;tokens()-&gt;delete();\n        $user-&gt;delete();\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">onDelete\u30ab\u30b9\u30b1\u30fc\u30c9\u306e\u9069\u5207\u306a\u4f7f\u3044\u65b9<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u8a2d\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=\"\">public function up()\n{\n    Schema::create('posts', function (Blueprint $table) {\n        $table-&gt;id();\n        $table-&gt;foreignId('user_id')\n              -&gt;constrained()\n              -&gt;onDelete('cascade');\n        $table-&gt;string('title');\n        $table-&gt;text('content');\n        $table-&gt;timestamps();\n    });\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u7570\u306a\u308b\u524a\u9664\u6226\u7565\u306e\u4f7f\u3044\u5206\u3051<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class CreateTablesWithDifferentDeleteStrategies extends Migration\n{\n    public function up()\n    {\n        \/\/ \u5f37\u3044\u95a2\u9023\uff08\u30ab\u30b9\u30b1\u30fc\u30c9\u524a\u9664\uff09\n        Schema::create('user_profiles', function (Blueprint $table) {\n            $table-&gt;id();\n            $table-&gt;foreignId('user_id')\n                  -&gt;constrained()\n                  -&gt;onDelete('cascade');\n            $table-&gt;timestamps();\n        });\n\n        \/\/ \u5f31\u3044\u95a2\u9023\uff08NULL\u8a31\u5bb9\uff09\n        Schema::create('team_members', function (Blueprint $table) {\n            $table-&gt;id();\n            $table-&gt;foreignId('team_id')\n                  -&gt;nullable()\n                  -&gt;constrained()\n                  -&gt;onDelete('set null');\n            $table-&gt;timestamps();\n        });\n\n        \/\/ \u524a\u9664\u5236\u7d04\n        Schema::create('departments', function (Blueprint $table) {\n            $table-&gt;id();\n            $table-&gt;foreignId('company_id')\n                  -&gt;constrained()\n                  -&gt;onDelete('restrict');\n            $table-&gt;timestamps();\n        });\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u8907\u5408\u7684\u306a\u524a\u9664\u6226\u7565\u306e\u5b9f\u88c5<\/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 Organization extends Model\n{\n    public function departments()\n    {\n        \/\/ \u90e8\u7f72\u306f\u7d44\u7e54\u304c\u524a\u9664\u3055\u308c\u308b\u524d\u306b\u79fb\u7ba1\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\n        return $this-&gt;hasMany(Department::class)\n                    -&gt;withDefault(['status' =&gt; 'pending_transfer']);\n    }\n\n    public function employees()\n    {\n        \/\/ \u5f93\u696d\u54e1\u306f\u7d44\u7e54\u304c\u524a\u9664\u3055\u308c\u3066\u3082\u8a18\u9332\u3092\u6b8b\u3059\n        return $this-&gt;hasMany(Employee::class)\n                    -&gt;withTrashed();\n    }\n\n    public function documents()\n    {\n        \/\/ \u6587\u66f8\u306f\u7d44\u7e54\u3068\u904b\u547d\u3092\u5171\u306b\u3059\u308b\n        return $this-&gt;hasMany(Document::class);\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">\u524a\u9664\u524d\u5f8c\u306e\u51e6\u7406\u3092\u30d5\u30c3\u30af\u3059\u308b\u65b9\u6cd5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30e2\u30c7\u30eb\u30a4\u30d9\u30f3\u30c8\u306e\u6d3b\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Post extends Model\n{\n    protected static function boot()\n    {\n        parent::boot();\n\n        \/\/ \u524a\u9664\u524d\u306e\u51e6\u7406\n        static::deleting(function($post) {\n            \/\/ \u524a\u9664\u524d\u306e\u691c\u8a3c\n            if ($post-&gt;isLocked()) {\n                throw new PostLockedException('\u30ed\u30c3\u30af\u3055\u308c\u305f\u6295\u7a3f\u306f\u524a\u9664\u3067\u304d\u307e\u305b\u3093');\n            }\n\n            \/\/ \u95a2\u9023\u30c7\u30fc\u30bf\u306e\u6574\u7406\n            $post-&gt;tags()-&gt;detach();\n            $post-&gt;notifications()-&gt;delete();\n\n            \/\/ \u524a\u9664\u30ed\u30b0\u306e\u8a18\u9332\n            Log::info(\"\u6295\u7a3f {$post-&gt;id} \u306e\u524a\u9664\u3092\u958b\u59cb\u3057\u307e\u3059\", [\n                'user_id' =&gt; auth()-&gt;id(),\n                'post_title' =&gt; $post-&gt;title\n            ]);\n        });\n\n        \/\/ \u524a\u9664\u5f8c\u306e\u51e6\u7406\n        static::deleted(function($post) {\n            \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30af\u30ea\u30a2\n            Cache::tags(['posts'])-&gt;flush();\n\n            \/\/ \u691c\u7d22\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u66f4\u65b0\n            $post-&gt;searchable()-&gt;delete();\n\n            \/\/ \u95a2\u9023\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u901a\u77e5\n            $post-&gt;notifyRelatedUsers();\n        });\n    }\n\n    protected function notifyRelatedUsers()\n    {\n        $users = $this-&gt;collaborators-&gt;merge($this-&gt;subscribers);\n        Notification::send($users, new PostDeletedNotification($this));\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30ab\u30b9\u30bf\u30e0\u30c7\u30ea\u30fc\u30c8\u30aa\u30d6\u30b6\u30fc\u30d0\u30fc\u306e\u5b9f\u88c5<\/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 PostObserver\n{\n    public function deleting(Post $post)\n    {\n        \/\/ \u524a\u9664\u6a29\u9650\u306e\u78ba\u8a8d\n        $this-&gt;authorizeDelete($post);\n\n        \/\/ \u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306e\u4f5c\u6210\n        $this-&gt;createBackup($post);\n    }\n\n    public function deleted(Post $post)\n    {\n        \/\/ \u7d71\u8a08\u306e\u66f4\u65b0\n        $this-&gt;updateStatistics($post);\n\n        \/\/ \u5916\u90e8\u30b5\u30fc\u30d3\u30b9\u3068\u306e\u540c\u671f\n        $this-&gt;syncExternalServices($post);\n    }\n\n    protected function authorizeDelete(Post $post)\n    {\n        if (!auth()-&gt;user()-&gt;can('delete', $post)) {\n            throw new UnauthorizedException;\n        }\n    }\n\n    protected function createBackup(Post $post)\n    {\n        PostBackup::create([\n            'post_id' =&gt; $post-&gt;id,\n            'content' =&gt; $post-&gt;toJson(),\n            'deleted_by' =&gt; auth()-&gt;id()\n        ]);\n    }\n\n    protected function updateStatistics(Post $post)\n    {\n        Statistics::decrementPostCount($post-&gt;user_id);\n    }\n\n    protected function syncExternalServices(Post $post)\n    {\n        dispatch(new SyncPostDeletionJob($post));\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u524a\u9664\u51e6\u7406\u306e\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u76e3\u67fb<\/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 DeletionAuditService\n{\n    public function logDeletion($model)\n    {\n        DeletionLog::create([\n            'model_type' =&gt; get_class($model),\n            'model_id' =&gt; $model-&gt;id,\n            'user_id' =&gt; auth()-&gt;id(),\n            'ip_address' =&gt; request()-&gt;ip(),\n            'reason' =&gt; request('deletion_reason'),\n            'metadata' =&gt; $this-&gt;collectMetadata($model)\n        ]);\n    }\n\n    protected function collectMetadata($model)\n    {\n        return [\n            'timestamp' =&gt; now(),\n            'user_agent' =&gt; request()-&gt;userAgent(),\n            'affected_relations' =&gt; $this-&gt;getAffectedRelations($model),\n            'original_attributes' =&gt; $model-&gt;getOriginal()\n        ];\n    }\n\n    protected function getAffectedRelations($model)\n    {\n        return collect($model-&gt;getRelations())\n            -&gt;map(function($relation, $name) {\n                return [\n                    'name' =&gt; $name,\n                    'count' =&gt; $relation instanceof Collection \n                        ? $relation-&gt;count() \n                        : 1\n                ];\n            })-&gt;toArray();\n    }\n}<\/pre>\n\n\n\n<p>\u30ab\u30b9\u30b1\u30fc\u30c9\u524a\u9664\u3092\u9069\u5207\u306b\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u4fdd\u3061\u306a\u304c\u3089\u3001\u5b89\u5168\u3067\u52b9\u7387\u7684\u306a\u30c7\u30fc\u30bf\u524a\u9664\u51e6\u7406\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3092\u6271\u3046\u969b\u306e\u300c\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u300d\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-12\">\u5927\u91cf\u30c7\u30fc\u30bf\u306e\u524a\u9664\u306b\u304a\u3051\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316<\/h2>\n\n\n\n<p>\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3059\u308b\u969b\u306f\u3001\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3001\u5b9f\u884c\u6642\u9593\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u306e\u8ca0\u8377\u306a\u3069\u3001\u69d8\u3005\u306a\u8981\u56e0\u3092\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u52b9\u7387\u7684\u306a\u30c7\u30fc\u30bf\u524a\u9664\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-13\">chunk()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u305f\u52b9\u7387\u7684\u306a\u524a\u9664\u51e6\u7406<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u57fa\u672c\u7684\u306a\u30c1\u30e3\u30f3\u30af\u51e6\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30e1\u30e2\u30ea\u52b9\u7387\u306e\u826f\u3044\u524a\u9664\u51e6\u7406\nUser::where('last_login_at', '&lt;', now()-&gt;subYears(2))\n    -&gt;chunk(1000, function($users) {\n        foreach ($users as $user) {\n            $user-&gt;delete();\n        }\n    });<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30c1\u30e3\u30f3\u30af\u51e6\u7406\u306e\u6700\u9069\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=\"\">class BatchDeletionService\n{\n    protected $chunkSize = 1000;\n    protected $totalDeleted = 0;\n\n    public function deleteInactiveUsers()\n    {\n        $query = User::where('last_login_at', '&lt;', now()-&gt;subYears(2));\n        $totalRecords = $query-&gt;count();\n\n        $progressBar = $this-&gt;createProgressBar($totalRecords);\n\n        $query-&gt;chunk($this-&gt;chunkSize, function($users) use ($progressBar) {\n            DB::transaction(function() use ($users, $progressBar) {\n                foreach ($users as $user) {\n                    $this-&gt;deleteUser($user);\n                    $this-&gt;totalDeleted++;\n                    $progressBar-&gt;advance();\n                }\n            });\n\n            \/\/ \u30e1\u30e2\u30ea\u89e3\u653e\n            gc_collect_cycles();\n        });\n\n        return $this-&gt;generateReport();\n    }\n\n    protected function deleteUser($user)\n    {\n        \/\/ \u95a2\u9023\u30c7\u30fc\u30bf\u306e\u524a\u9664\n        $user-&gt;posts()-&gt;delete();\n        $user-&gt;comments()-&gt;delete();\n        $user-&gt;delete();\n    }\n\n    protected function generateReport()\n    {\n        return [\n            'total_deleted' =&gt; $this-&gt;totalDeleted,\n            'execution_time' =&gt; number_format(microtime(true) - LARAVEL_START, 2),\n            'memory_peak' =&gt; memory_get_peak_usage(true) \/ 1024 \/ 1024 . 'MB'\n        ];\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u8907\u6570\u30c6\u30fc\u30d6\u30eb\u306e\u52b9\u7387\u7684\u306a\u524a\u9664<\/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 MultiTableDeletionService\n{\n    public function deleteOldData()\n    {\n        $cutoffDate = now()-&gt;subYears(1);\n\n        \/\/ \u4f9d\u5b58\u95a2\u4fc2\u3092\u8003\u616e\u3057\u305f\u524a\u9664\u9806\u5e8f\n        $this-&gt;deleteChunked('activity_logs', $cutoffDate);\n        $this-&gt;deleteChunked('user_sessions', $cutoffDate);\n        $this-&gt;deleteChunked('notifications', $cutoffDate);\n    }\n\n    protected function deleteChunked($table, $cutoffDate)\n    {\n        $query = DB::table($table)-&gt;where('created_at', '&lt;', $cutoffDate);\n\n        do {\n            $deleted = $query-&gt;take(1000)-&gt;delete();\n\n            if ($deleted &gt; 0) {\n                Log::info(\"Deleted {$deleted} records from {$table}\");\n                sleep(1); \/\/ \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8ca0\u8377\u306e\u8abf\u6574\n            }\n        } while ($deleted &gt; 0);\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u30ad\u30e5\u30fc\u3092\u6d3b\u7528\u3057\u305f\u975e\u540c\u671f\u524a\u9664\u306e\u5b9f\u88c5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u524a\u9664\u30b8\u30e7\u30d6\u306e\u5b9a\u7fa9<\/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 DeleteOldRecordsJob implements ShouldQueue\n{\n    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;\n\n    protected $batchId;\n    protected $modelClass;\n    protected $conditions;\n\n    public function __construct($modelClass, $conditions, $batchId = null)\n    {\n        $this-&gt;modelClass = $modelClass;\n        $this-&gt;conditions = $conditions;\n        $this-&gt;batchId = $batchId ?? Str::uuid();\n    }\n\n    public function handle()\n    {\n        $query = app($this-&gt;modelClass)-&gt;query();\n\n        foreach ($this-&gt;conditions as $column =&gt; $value) {\n            $query-&gt;where($column, $value);\n        }\n\n        $query-&gt;chunk(1000, function($records) {\n            foreach ($records as $record) {\n                try {\n                    $record-&gt;delete();\n                    $this-&gt;updateProgress();\n                } catch (\\Exception $e) {\n                    $this-&gt;handleError($record, $e);\n                }\n            }\n        });\n    }\n\n    protected function updateProgress()\n    {\n        Cache::increment(\"deletion_progress:{$this-&gt;batchId}\");\n    }\n\n    protected function handleError($record, $e)\n    {\n        Log::error(\"\u524a\u9664\u30a8\u30e9\u30fc: {$this-&gt;modelClass} ID {$record-&gt;id}\", [\n            'error' =&gt; $e-&gt;getMessage(),\n            'batch_id' =&gt; $this-&gt;batchId\n        ]);\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30d0\u30c3\u30c1\u51e6\u7406\u306e\u5b9f\u88c5<\/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 BatchDeletionController extends Controller\n{\n    public function deleteOldRecords()\n    {\n        $batchId = Str::uuid();\n\n        \/\/ \u524a\u9664\u5bfe\u8c61\u306e\u5b9a\u7fa9\n        $deletionTasks = [\n            [\n                'model' =&gt; Post::class,\n                'conditions' =&gt; ['created_at' =&gt; ['&lt;', now()-&gt;subYears(2)]]\n            ],\n            [\n                'model' =&gt; Comment::class,\n                'conditions' =&gt; ['status' =&gt; 'archived']\n            ]\n        ];\n\n        \/\/ \u30b8\u30e7\u30d6\u306e\u30c7\u30a3\u30b9\u30d1\u30c3\u30c1\n        foreach ($deletionTasks as $task) {\n            DeleteOldRecordsJob::dispatch(\n                $task['model'],\n                $task['conditions'],\n                $batchId\n            )-&gt;onQueue('deletions');\n        }\n\n        return response()-&gt;json([\n            'batch_id' =&gt; $batchId,\n            'message' =&gt; '\u524a\u9664\u51e6\u7406\u3092\u958b\u59cb\u3057\u307e\u3057\u305f'\n        ]);\n    }\n\n    public function checkProgress($batchId)\n    {\n        $progress = Cache::get(\"deletion_progress:{$batchId}\", 0);\n        return response()-&gt;json(['progress' =&gt; $progress]);\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-15\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u65b9\u6cd5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30e1\u30c8\u30ea\u30af\u30b9\u306e\u53ce\u96c6<\/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 DeletionMetricsService\n{\n    protected $metrics = [];\n\n    public function recordDeletion($model, $count, $duration)\n    {\n        $this-&gt;metrics[] = [\n            'model' =&gt; get_class($model),\n            'count' =&gt; $count,\n            'duration' =&gt; $duration,\n            'memory_usage' =&gt; memory_get_usage(true),\n            'timestamp' =&gt; now()\n        ];\n    }\n\n    public function analyze()\n    {\n        return [\n            'total_records' =&gt; collect($this-&gt;metrics)-&gt;sum('count'),\n            'total_duration' =&gt; collect($this-&gt;metrics)-&gt;sum('duration'),\n            'avg_deletion_rate' =&gt; $this-&gt;calculateDeletionRate(),\n            'peak_memory_usage' =&gt; collect($this-&gt;metrics)-&gt;max('memory_usage'),\n            'detailed_metrics' =&gt; $this-&gt;metrics\n        ];\n    }\n\n    protected function calculateDeletionRate()\n    {\n        $totalRecords = collect($this-&gt;metrics)-&gt;sum('count');\n        $totalDuration = collect($this-&gt;metrics)-&gt;sum('duration');\n\n        return $totalDuration &gt; 0 \n            ? $totalRecords \/ $totalDuration \n            : 0;\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class DeletionOptimizer\n{\n    public function optimizeChunkSize($model, $conditions)\n    {\n        $sizes = [500, 1000, 2000, 5000];\n        $results = [];\n\n        foreach ($sizes as $size) {\n            $start = microtime(true);\n\n            $model::where($conditions)\n                -&gt;limit(10000)\n                -&gt;chunk($size, function($records) {\n                    foreach ($records as $record) {\n                        $record-&gt;delete();\n                    }\n                });\n\n            $duration = microtime(true) - $start;\n            $results[$size] = $duration;\n        }\n\n        return $this-&gt;analyzeResults($results);\n    }\n\n    protected function analyzeResults($results)\n    {\n        $optimal = array_search(min($results), $results);\n\n        return [\n            'optimal_chunk_size' =&gt; $optimal,\n            'execution_times' =&gt; $results,\n            'recommendation' =&gt; $this-&gt;generateRecommendation($optimal, $results)\n        ];\n    }\n\n    protected function generateRecommendation($optimal, $results)\n    {\n        return [\n            'chunk_size' =&gt; $optimal,\n            'expected_performance' =&gt; [\n                'records_per_second' =&gt; 10000 \/ $results[$optimal],\n                'memory_impact' =&gt; $this-&gt;estimateMemoryImpact($optimal)\n            ]\n        ];\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9<\/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 DeletionMonitoringController extends Controller\n{\n    public function dashboard()\n    {\n        $metrics = [\n            'recent_deletions' =&gt; $this-&gt;getRecentDeletions(),\n            'queue_status' =&gt; $this-&gt;getQueueStatus(),\n            'system_metrics' =&gt; $this-&gt;getSystemMetrics()\n        ];\n\n        return view('admin.deletion-monitoring', compact('metrics'));\n    }\n\n    protected function getRecentDeletions()\n    {\n        return DB::table('deletion_logs')\n            -&gt;select(DB::raw('DATE(created_at) as date'), \n                    DB::raw('COUNT(*) as count'),\n                    DB::raw('AVG(duration) as avg_duration'))\n            -&gt;groupBy('date')\n            -&gt;orderBy('date', 'desc')\n            -&gt;limit(7)\n            -&gt;get();\n    }\n\n    protected function getQueueStatus()\n    {\n        return [\n            'pending_jobs' =&gt; Queue::size('deletions'),\n            'failed_jobs' =&gt; DB::table('failed_jobs')\n                -&gt;where('queue', 'deletions')\n                -&gt;count(),\n            'average_processing_time' =&gt; $this-&gt;calculateAverageProcessingTime()\n        ];\n    }\n}<\/pre>\n\n\n\n<p>\u5927\u91cf\u30c7\u30fc\u30bf\u306e\u524a\u9664\u3092\u52b9\u7387\u7684\u306b\u884c\u3046\u305f\u3081\u306b\u306f\u3001\u9069\u5207\u306a\u30c1\u30e3\u30f3\u30af\u30b5\u30a4\u30ba\u306e\u8a2d\u5b9a\u3001\u30ad\u30e5\u30fc\u306e\u6d3b\u7528\u3001\u305d\u3057\u3066\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u304c\u91cd\u8981\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u65b9\u6cd5\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30b7\u30b9\u30c6\u30e0\u3078\u306e\u5f71\u97ff\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u306a\u304c\u3089\u3001\u5927\u898f\u6a21\u306a\u524a\u9664\u51e6\u7406\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u524a\u9664\u51e6\u7406\u306b\u304a\u3051\u308b\u300c\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u30c7\u30d0\u30c3\u30b0\u30c6\u30af\u30cb\u30c3\u30af\u300d\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-16\">\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u30c7\u30d0\u30c3\u30b0\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<p>\u30c7\u30fc\u30bf\u524a\u9664\u51e6\u7406\u306b\u304a\u3044\u3066\u3001\u69d8\u3005\u306a\u30a8\u30e9\u30fc\u3084\u4e88\u671f\u305b\u306c\u52d5\u4f5c\u306b\u906d\u9047\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u672c\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u4e00\u822c\u7684\u306a\u554f\u984c\u306e\u89e3\u6c7a\u65b9\u6cd5\u3068\u52b9\u679c\u7684\u306a\u30c7\u30d0\u30c3\u30b0\u624b\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u3088\u304f\u3042\u308b\u524a\u9664\u30a8\u30e9\u30fc\u3068\u305d\u306e\u89e3\u6c7a\u65b9\u6cd5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5916\u90e8\u30ad\u30fc\u5236\u7d04\u9055\u53cd\u306e\u5bfe\u51e6<\/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 ForeignKeyViolationHandler\n{\n    public function handle($exception)\n    {\n        if ($this-&gt;isForeignKeyViolation($exception)) {\n            \/\/ \u95a2\u9023\u30ec\u30b3\u30fc\u30c9\u306e\u7279\u5b9a\n            $constraint = $this-&gt;extractConstraintName($exception);\n            $relations = $this-&gt;mapConstraintToRelations($constraint);\n\n            return [\n                'error' =&gt; '\u95a2\u9023\u30c7\u30fc\u30bf\u304c\u5b58\u5728\u3059\u308b\u305f\u3081\u524a\u9664\u3067\u304d\u307e\u305b\u3093',\n                'relations' =&gt; $relations,\n                'suggestion' =&gt; $this-&gt;getSuggestion($relations)\n            ];\n        }\n\n        throw $exception;\n    }\n\n    protected function isForeignKeyViolation($exception)\n    {\n        return $exception instanceof \\PDOException &amp;&amp;\n               str_contains($exception-&gt;getMessage(), 'foreign key constraint fails');\n    }\n\n    protected function getSuggestion($relations)\n    {\n        return \"\u4ee5\u4e0b\u306e\u5bfe\u51e6\u65b9\u6cd5\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\uff1a\\n\" .\n               \"1. \u95a2\u9023\u30c7\u30fc\u30bf\u3092\u5148\u306b\u524a\u9664\\n\" .\n               \"2. \u30ab\u30b9\u30b1\u30fc\u30c9\u524a\u9664\u306e\u8a2d\u5b9a\\n\" .\n               \"3. \u5916\u90e8\u30ad\u30fc\u3092NULL\u306b\u8a2d\u5b9a\";\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u5bfe\u7b56<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class DeadlockRetryMiddleware\n{\n    public function handle($request, $next)\n    {\n        $attempts = 0;\n        $maxAttempts = 3;\n\n        do {\n            try {\n                return DB::transaction(function() use ($next, $request) {\n                    return $next($request);\n                });\n            } catch (\\PDOException $e) {\n                if (!$this-&gt;isDeadlock($e) || $attempts &gt;= $maxAttempts) {\n                    throw $e;\n                }\n                $attempts++;\n                usleep(random_int(100000, 500000)); \/\/ 0.1-0.5\u79d2\u5f85\u6a5f\n            }\n        } while ($attempts &lt; $maxAttempts);\n    }\n\n    protected function isDeadlock($exception)\n    {\n        return str_contains($exception-&gt;getMessage(), 'Deadlock found');\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u5bfe\u7b56<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class TimeoutHandler\n{\n    public function executeLongRunningDelete($query)\n    {\n        \/\/ \u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u8a2d\u5b9a\u306e\u4e00\u6642\u7684\u306a\u8abf\u6574\n        DB::statement('SET SESSION wait_timeout = 300');\n\n        try {\n            return $this-&gt;executeWithProgress($query);\n        } finally {\n            \/\/ \u8a2d\u5b9a\u3092\u5143\u306b\u623b\u3059\n            DB::statement('SET SESSION wait_timeout = 60');\n        }\n    }\n\n    protected function executeWithProgress($query)\n    {\n        $total = $query-&gt;count();\n        $deleted = 0;\n\n        while ($deleted &lt; $total) {\n            $chunk = $query-&gt;take(1000)-&gt;get();\n\n            if ($chunk-&gt;isEmpty()) {\n                break;\n            }\n\n            foreach ($chunk as $record) {\n                $record-&gt;delete();\n                $deleted++;\n            }\n\n            \/\/ \u9032\u6357\u5831\u544a\n            event(new DeleteProgressUpdated($deleted, $total));\n        }\n\n        return $deleted;\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-18\">\u524a\u9664\u64cd\u4f5c\u306e\u30ed\u30b0\u7ba1\u7406\u3068\u8ffd\u8de1\u65b9\u6cd5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u9ad8\u5ea6\u306a\u30ed\u30b0\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0<\/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 DeletionLogger\n{\n    protected $context = [];\n\n    public function setContext(array $context)\n    {\n        $this-&gt;context = array_merge($this-&gt;context, $context);\n        return $this;\n    }\n\n    public function logDeletion($model)\n    {\n        $logEntry = [\n            'model_type' =&gt; get_class($model),\n            'model_id' =&gt; $model-&gt;id,\n            'user_id' =&gt; auth()-&gt;id(),\n            'timestamp' =&gt; now(),\n            'request_info' =&gt; $this-&gt;getRequestInfo(),\n            'context' =&gt; $this-&gt;context\n        ];\n\n        \/\/ \u30ed\u30b0\u306e\u4fdd\u5b58\n        DeletionLog::create($logEntry);\n\n        \/\/ \u91cd\u8981\u306a\u524a\u9664\u306e\u5834\u5408\u306f\u7ba1\u7406\u8005\u306b\u901a\u77e5\n        if ($this-&gt;isSignificantDeletion($model)) {\n            $this-&gt;notifyAdministrators($logEntry);\n        }\n    }\n\n    protected function getRequestInfo()\n    {\n        return [\n            'ip' =&gt; request()-&gt;ip(),\n            'user_agent' =&gt; request()-&gt;userAgent(),\n            'referer' =&gt; request()-&gt;header('referer'),\n            'route' =&gt; request()-&gt;route()-&gt;getName()\n        ];\n    }\n\n    protected function isSignificantDeletion($model)\n    {\n        return $model instanceof User ||\n               $model instanceof Organization ||\n               $model-&gt;isImportant();\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u76e3\u67fb\u30ed\u30b0\u306e\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">trait DeletionAuditable\n{\n    public static function bootDeletionAuditable()\n    {\n        static::deleting(function($model) {\n            $model-&gt;recordDeletionAudit();\n        });\n    }\n\n    protected function recordDeletionAudit()\n    {\n        $audit = new DeletionAudit([\n            'model_type' =&gt; get_class($this),\n            'model_id' =&gt; $this-&gt;id,\n            'attributes' =&gt; $this-&gt;getAuditableAttributes(),\n            'relations' =&gt; $this-&gt;getAuditableRelations(),\n            'deleted_by' =&gt; auth()-&gt;id(),\n            'reason' =&gt; request('deletion_reason'),\n            'metadata' =&gt; $this-&gt;getAuditMetadata()\n        ]);\n\n        $audit-&gt;save();\n    }\n\n    protected function getAuditableAttributes()\n    {\n        return array_diff_key(\n            $this-&gt;getAttributes(),\n            array_flip($this-&gt;getHidden())\n        );\n    }\n\n    protected function getAuditMetadata()\n    {\n        return [\n            'ip_address' =&gt; request()-&gt;ip(),\n            'user_agent' =&gt; request()-&gt;userAgent(),\n            'timestamp' =&gt; now()-&gt;toAtomString(),\n            'environment' =&gt; app()-&gt;environment()\n        ];\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-19\">\u30c6\u30b9\u30c8\u74b0\u5883\u3067\u306e\u524a\u9664\u51e6\u7406\u306e\u691c\u8a3c\u65b9\u6cd5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5358\u4f53\u30c6\u30b9\u30c8\u306e\u5b9f\u88c5<\/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 UserDeletionTest extends TestCase\n{\n    use RefreshDatabase;\n\n    public function test_user_deletion_with_related_data()\n    {\n        \/\/ \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\n        $user = User::factory()\n            -&gt;has(Post::factory()-&gt;count(3))\n            -&gt;has(Comment::factory()-&gt;count(5))\n            -&gt;create();\n\n        \/\/ \u524a\u9664\u51e6\u7406\u306e\u5b9f\u884c\n        $service = new UserDeletionService();\n        $result = $service-&gt;delete($user-&gt;id);\n\n        \/\/ \u30a2\u30b5\u30fc\u30b7\u30e7\u30f3\n        $this-&gt;assertTrue($result-&gt;success);\n        $this-&gt;assertDatabaseMissing('users', ['id' =&gt; $user-&gt;id]);\n        $this-&gt;assertDatabaseMissing('posts', ['user_id' =&gt; $user-&gt;id]);\n        $this-&gt;assertDatabaseMissing('comments', ['user_id' =&gt; $user-&gt;id]);\n    }\n\n    public function test_deletion_rollback_on_error()\n    {\n        \/\/ \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u30c6\u30b9\u30c8\n        $user = User::factory()-&gt;create();\n\n        try {\n            DB::transaction(function() use ($user) {\n                $user-&gt;delete();\n                throw new \\Exception('\u5f37\u5236\u30a8\u30e9\u30fc');\n            });\n        } catch (\\Exception $e) {\n            \/\/ \u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u306e\u78ba\u8a8d\n            $this-&gt;assertDatabaseHas('users', ['id' =&gt; $user-&gt;id]);\n        }\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u7d71\u5408\u30c6\u30b9\u30c8\u306e\u5b9f\u88c5<\/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 BatchDeletionTest extends TestCase\n{\n    use RefreshDatabase;\n\n    public function test_batch_deletion_with_chunk_processing()\n    {\n        \/\/ \u5927\u91cf\u306e\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u4f5c\u6210\n        User::factory()\n            -&gt;count(1000)\n            -&gt;state(['status' =&gt; 'inactive'])\n            -&gt;create();\n\n        \/\/ \u30d0\u30c3\u30c1\u524a\u9664\u306e\u5b9f\u884c\n        $service = new BatchDeletionService();\n        $result = $service-&gt;deleteInactiveUsers();\n\n        \/\/ \u7d50\u679c\u306e\u691c\u8a3c\n        $this-&gt;assertEquals(1000, $result['total_deleted']);\n        $this-&gt;assertDatabaseCount('users', 0);\n        $this-&gt;assertLessThan(100, $result['memory_peak']);  \/\/ \u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u78ba\u8a8d\n    }\n\n    public function test_deletion_with_queue_processing()\n    {\n        Queue::fake();\n\n        $users = User::factory()\n            -&gt;count(100)\n            -&gt;create();\n\n        \/\/ \u30ad\u30e5\u30fc\u3092\u4f7f\u7528\u3057\u305f\u524a\u9664\u51e6\u7406\n        DeleteUsersJob::dispatch($users-&gt;pluck('id')-&gt;toArray());\n\n        \/\/ \u30ad\u30e5\u30fc\u306e\u691c\u8a3c\n        Queue::assertPushed(DeleteUsersJob::class);\n\n        \/\/ \u30b8\u30e7\u30d6\u306e\u51e6\u7406\n        Queue::assertPushed(function (DeleteUsersJob $job) {\n            $job-&gt;handle();\n            return true;\n        });\n\n        \/\/ \u524a\u9664\u306e\u78ba\u8a8d\n        $this-&gt;assertDatabaseCount('users', 0);\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c6\u30b9\u30c8\u306e\u5b9f\u88c5<\/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 DeletionPerformanceTest extends TestCase\n{\n    public function test_deletion_performance()\n    {\n        \/\/ \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8a08\u6e2c\n        $startMemory = memory_get_usage();\n        $startTime = microtime(true);\n\n        \/\/ \u30c6\u30b9\u30c8\u5bfe\u8c61\u306e\u51e6\u7406\n        $service = new BatchDeletionService();\n        $result = $service-&gt;deleteOldRecords();\n\n        \/\/ \u30e1\u30c8\u30ea\u30af\u30b9\u306e\u8a08\u7b97\n        $memoryUsed = memory_get_usage() - $startMemory;\n        $timeElapsed = microtime(true) - $startTime;\n\n        \/\/ \u30a2\u30b5\u30fc\u30b7\u30e7\u30f3\n        $this-&gt;assertLessThan(5.0, $timeElapsed);  \/\/ 5\u79d2\u4ee5\u5185\n        $this-&gt;assertLessThan(100 * 1024 * 1024, $memoryUsed);  \/\/ 100MB\u4ee5\u5185\n\n        \/\/ \u8a73\u7d30\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30ed\u30b0\u306e\u8a18\u9332\n        Log::info('\u524a\u9664\u51e6\u7406\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9', [\n            'records_deleted' =&gt; $result['total_deleted'],\n            'time_elapsed' =&gt; $timeElapsed,\n            'memory_used' =&gt; $memoryUsed,\n            'records_per_second' =&gt; $result['total_deleted'] \/ $timeElapsed\n        ]);\n    }\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u30c7\u30d0\u30c3\u30b0\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u5207\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u524a\u9664\u51e6\u7406\u306e\u4fe1\u983c\u6027\u3068\u4fdd\u5b88\u6027\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30a8\u30e9\u30fc\u306e\u65e9\u671f\u767a\u898b\u3068\u9069\u5207\u306a\u5bfe\u51e6\u3001\u305d\u3057\u3066\u5305\u62ec\u7684\u306a\u30c6\u30b9\u30c8\u306e\u5b9f\u65bd\u304c\u3001\u5b89\u5b9a\u3057\u305f\u30b7\u30b9\u30c6\u30e0\u904b\u7528\u306e\u9375\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; 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