{"id":2542,"date":"2025-03-24T08:47:04","date_gmt":"2025-03-23T23:47:04","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=2542"},"modified":"2025-03-24T08:47:34","modified_gmt":"2025-03-23T23:47:34","slug":"%e3%80%90%e4%bf%9d%e5%ad%98%e7%89%88%e3%80%91laravel%e3%81%aedb%e6%93%8d%e4%bd%9c%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%892024%ef%bc%9a%e8%a8%ad%e5%ae%9a%e3%81%8b%e3%82%89%e5%ae%9f%e8%b7%b5","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=2542","title":{"rendered":"\u3010\u4fdd\u5b58\u7248\u3011Laravel\u306eDB\u64cd\u4f5c\u5b8c\u5168\u30ac\u30a4\u30c92024\uff1a\u8a2d\u5b9a\u304b\u3089\u5b9f\u8df5\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af\u307e\u3067"},"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\">\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\u306e\u57fa\u790e\u304b\u3089\u5b9f\u8df5\u307e\u3067<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">Eloquent\u30e2\u30c7\u30eb\u3092\u4f7f\u3063\u305f\u52b9\u7387\u7684\u306aDB\u64cd\u4f5c<\/a>      <\/li>      <li>        <a href=\"#i-2\">\u30af\u30a8\u30ea\u30d3\u30eb\u30c0\u30fc\u3067\u67d4\u8edf\u306a\u30c7\u30fc\u30bf\u53d6\u5f97\u3092\u5b9f\u73fe<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-3\">\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u3067\u78ba\u5b9f\u306a\u30c7\u30fc\u30bf\u64cd\u4f5c\u3092\u5b9f\u88c5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-4\">\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3068\u30b7\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-5\">\u78ba\u5b9f\u306b\u6210\u529f\u3059\u308b\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\u306e\u66f8\u304d\u65b9<\/a>      <\/li>      <li>        <a href=\"#i-6\">\u672c\u756a\u74b0\u5883\u3067\u3082\u5b89\u5168\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u66f4\u65b0\u624b\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-7\">\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u4f5c\u6210\u3092\u52b9\u7387\u5316\u3059\u308b\u30b7\u30fc\u30c7\u30a3\u30f3\u30b0\u6226\u7565<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-8\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306e\u6700\u9069\u5316<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-9\">N+1\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a2\u30af\u30bb\u30b9\u306e\u6700\u9069\u5316<\/a>      <\/li>      <li>        <a href=\"#i-10\">\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u6d3b\u7528\u3057\u305f\u9ad8\u901f\u306a\u30c7\u30fc\u30bf\u53d6\u5f97\u624b\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-11\">\u5927\u898f\u6a21\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u306e\u52b9\u7387\u7684\u306a\u904b\u7528\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-12\">\u5b9f\u8df5\u7684\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-13\">SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u653b\u6483\u304b\u3089\u306e\u78ba\u5b9f\u306a\u9632\u5fa1\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-14\">\u6a5f\u5bc6\u30c7\u30fc\u30bf\u306e\u5b89\u5168\u306a\u53d6\u308a\u6271\u3044\u624b\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-15\">\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u3068\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u88c5<\/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\">\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\u306e\u57fa\u790e\u304b\u3089\u5b9f\u8df5\u307e\u3067<\/h2>\n\n\n\n<p>Laravel\u3067\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\u306b\u95a2\u3057\u30663\u3064\u306e\u4e3b\u8981\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u3042\u308a\u307e\u3059\uff1aEloquent\u30e2\u30c7\u30eb\u3001\u30af\u30a8\u30ea\u30d3\u30eb\u30c0\u30fc\u3001\u305d\u3057\u3066\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u3067\u3059\u3002\u305d\u308c\u305e\u308c\u306e\u7279\u5fb4\u3092\u6d3b\u304b\u3057\u305f\u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u65b9\u6cd5\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">Eloquent\u30e2\u30c7\u30eb\u3092\u4f7f\u3063\u305f\u52b9\u7387\u7684\u306aDB\u64cd\u4f5c<\/h3>\n\n\n\n<p>Eloquent\u306f\u3001Laravel\u306e\u5f37\u529b\u306aORM\u3067\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\u3092\u76f4\u611f\u7684\u306b\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u4e3b\u8981\u306a\u6a5f\u80fd\u3068\u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u4f8b\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u57fa\u672c\u7684\u306aCRUD\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=\"\">\/\/ \u30e2\u30c7\u30eb\u306e\u5b9a\u7fa9\nclass User extends Model\n{\n    protected $fillable = ['name', 'email', 'status'];\n\n    \/\/ \u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u306e\u5b9a\u7fa9\n    public function posts()\n    {\n        return $this-&gt;hasMany(Post::class);\n    }\n}\n\n\/\/ \u30c7\u30fc\u30bf\u306e\u4f5c\u6210\n$user = User::create([\n    'name' =&gt; '\u5c71\u7530\u592a\u90ce',\n    'email' =&gt; 'yamada@example.com',\n    'status' =&gt; 'active'\n]);\n\n\/\/ \u30c7\u30fc\u30bf\u306e\u53d6\u5f97\u3068\u66f4\u65b0\n$user = User::find(1);\n$user-&gt;update(['status' =&gt; 'inactive']);\n\n\/\/ \u30c7\u30fc\u30bf\u306e\u524a\u9664\n$user-&gt;delete();<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u9ad8\u5ea6\u306a\u30af\u30a8\u30ea\u306e\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u6761\u4ef6\u4ed8\u304d\u691c\u7d22\u3068\u30bd\u30fc\u30c8\n$activeUsers = User::where('status', 'active')\n    -&gt;whereHas('posts', function($query) {\n        $query-&gt;where('published', true);\n    })\n    -&gt;orderBy('created_at', 'desc')\n    -&gt;get();\n\n\/\/ \u30b9\u30b3\u30fc\u30d7\u306e\u6d3b\u7528\nclass User extends Model\n{\n    \/\/ \u30ed\u30fc\u30ab\u30eb\u30b9\u30b3\u30fc\u30d7\n    public function scopeActive($query)\n    {\n        return $query-&gt;where('status', 'active');\n    }\n\n    \/\/ \u30b0\u30ed\u30fc\u30d0\u30eb\u30b9\u30b3\u30fc\u30d7\n    protected static function booted()\n    {\n        static::addGlobalScope('active', function ($query) {\n            $query-&gt;where('deleted_at', null);\n        });\n    }\n}\n\n\/\/ \u30b9\u30b3\u30fc\u30d7\u306e\u4f7f\u7528\n$activeUsers = User::active()-&gt;get();<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u306e\u52b9\u7387\u7684\u306a\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=\"\">\/\/ Eager\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u5b9f\u88c5\n$users = User::with(['posts', 'comments'])-&gt;get();\n\n\/\/ \u9045\u5ef6Eager\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\n$users = User::all();\n$users-&gt;load('posts');\n\n\/\/ \u6761\u4ef6\u4ed8\u304d\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u53d6\u5f97\n$users = User::with(['posts' =&gt; function($query) {\n    $query-&gt;where('published', true);\n}])-&gt;get();<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">\u30af\u30a8\u30ea\u30d3\u30eb\u30c0\u30fc\u3067\u67d4\u8edf\u306a\u30c7\u30fc\u30bf\u53d6\u5f97\u3092\u5b9f\u73fe<\/h3>\n\n\n\n<p>\u30af\u30a8\u30ea\u30d3\u30eb\u30c0\u30fc\u306f\u3001\u3088\u308a\u8907\u96d1\u306aSQL\u30af\u30a8\u30ea\u3092\u69cb\u7bc9\u3059\u308b\u969b\u306b\u4fbf\u5229\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u8907\u96d1\u306a\u6761\u4ef6\u3067\u306e\u691c\u7d22\n$results = DB::table('users')\n    -&gt;select('users.*', 'departments.name as department_name')\n    -&gt;join('departments', 'users.department_id', '=', 'departments.id')\n    -&gt;where(function($query) {\n        $query-&gt;where('status', 'active')\n              -&gt;orWhere('role', 'admin');\n    })\n    -&gt;whereNotIn('id', function($query) {\n        $query-&gt;select('user_id')\n              -&gt;from('blocked_users');\n    })\n    -&gt;orderBy('created_at', 'desc')\n    -&gt;paginate(20);\n\n\/\/ \u30b5\u30d6\u30af\u30a8\u30ea\u306e\u6d3b\u7528\n$highValueUsers = DB::table('users')\n    -&gt;addSelect(['total_orders' =&gt; function($query) {\n        $query-&gt;selectRaw('sum(amount)')\n              -&gt;from('orders')\n              -&gt;whereColumn('user_id', 'users.id');\n    }])\n    -&gt;having('total_orders', '&gt;', 100000)\n    -&gt;get();\n\n\/\/ Raw SQL\u306e\u5b89\u5168\u306a\u4f7f\u7528\n$results = DB::select(\n    'SELECT * FROM users WHERE status = ? AND created_at &gt;= ?',\n    ['active', now()-&gt;subDays(30)]\n);<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-3\">\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u3067\u78ba\u5b9f\u306a\u30c7\u30fc\u30bf\u64cd\u4f5c\u3092\u5b9f\u88c5<\/h3>\n\n\n\n<p>\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u4fdd\u3064\u305f\u3081\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u306e\u5b9f\u88c5\u4f8b\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u57fa\u672c\u7684\u306a\u30c8\u30e9\u30f3\u30b6\u30af\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=\"\">DB::transaction(function () {\n    $user = User::create([\n        'name' =&gt; '\u65b0\u898f\u30e6\u30fc\u30b6\u30fc',\n        'email' =&gt; 'new@example.com'\n    ]);\n\n    $user-&gt;profile()-&gt;create([\n        'bio' =&gt; '\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u60c5\u5831'\n    ]);\n\n    \/\/ \u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306f\u81ea\u52d5\u7684\u306b\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\n});<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u624b\u52d5\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5236\u5fa1<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">try {\n    DB::beginTransaction();\n\n    $order = Order::create([\n        'user_id' =&gt; 1,\n        'total' =&gt; 10000\n    ]);\n\n    \/\/ \u5728\u5eab\u306e\u66f4\u65b0\n    $product = Product::find(1);\n    if ($product-&gt;stock &lt; $order-&gt;quantity) {\n        throw new \\Exception('\u5728\u5eab\u4e0d\u8db3');\n    }\n    $product-&gt;decrement('stock', $order-&gt;quantity);\n\n    \/\/ \u652f\u6255\u3044\u51e6\u7406\n    $payment = Payment::process($order);\n\n    DB::commit();\n} catch (\\Exception $e) {\n    DB::rollBack();\n    Log::error('\u6ce8\u6587\u51e6\u7406\u5931\u6557: ' . $e-&gt;getMessage());\n    throw $e;\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30cd\u30b9\u30c8\u3057\u305f\u30c8\u30e9\u30f3\u30b6\u30af\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=\"\">DB::transaction(function () {\n    $user = User::create(['name' =&gt; '\u30c6\u30b9\u30c8\u30e6\u30fc\u30b6\u30fc']);\n\n    DB::transaction(function () use ($user) {\n        $user-&gt;profile()-&gt;create(['bio' =&gt; '\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb']);\n    });\n\n    \/\/ \u5185\u90e8\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u304c\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u3055\u308c\u3066\u3082\n    \/\/ \u5916\u90e8\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306f\u7d99\u7d9a\u53ef\u80fd\n});<\/pre>\n\n\n\n<p>\u5b9f\u88c5\u4e0a\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306f\u5fc5\u8981\u6700\u5c0f\u9650\u306e\u7bc4\u56f2\u3067\u4f7f\u7528\u3059\u308b<\/li>\n\n\n\n<li>\u9577\u6642\u9593\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306f\u907f\u3051\u308b<\/li>\n\n\n\n<li>\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u3092\u9632\u3050\u305f\u3081\u3001\u4e00\u8cab\u3057\u305f\u9806\u5e8f\u3067\u30ec\u30b3\u30fc\u30c9\u3092\u30ed\u30c3\u30af<\/li>\n\n\n\n<li>\u4f8b\u5916\u51e6\u7406\u3092\u9069\u5207\u306b\u5b9f\u88c5\u3057\u3001\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u6642\u306e\u5f8c\u51e6\u7406\u3082\u8003\u616e\u3059\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u4ee5\u4e0a\u306e\u57fa\u672c\u7684\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\u306e\u5b9f\u88c5\u65b9\u6cd5\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5805\u7262\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u958b\u767a\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u64cd\u4f5c\u3092\u3055\u3089\u306b\u4f53\u7cfb\u7684\u306b\u7ba1\u7406\u3059\u308b\u305f\u3081\u306e\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3068\u30b7\u30fc\u30c7\u30a3\u30f3\u30b0\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-4\">\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3068\u30b7\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n\n\n\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u3068\u521d\u671f\u30c7\u30fc\u30bf\u306e\u8a2d\u5b9a\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u306e\u91cd\u8981\u306a\u5074\u9762\u3067\u3059\u3002\u9069\u5207\u306a\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3068\u30b7\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u6226\u7565\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u958b\u767a\u52b9\u7387\u306e\u5411\u4e0a\u3068\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u7dad\u6301\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">\u78ba\u5b9f\u306b\u6210\u529f\u3059\u308b\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\u306e\u66f8\u304d\u65b9<\/h3>\n\n\n\n<p>\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u69cb\u9020\u3092\u5b9a\u7fa9\u3059\u308b\u91cd\u8981\u306a\u30b3\u30fc\u30c9\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u57fa\u3065\u3044\u305f\u5b9f\u88c5\u4f8b\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u57fa\u672c\u7684\u306a\u30c6\u30fc\u30d6\u30eb\u4f5c\u6210<\/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=\"\">\/\/ create_users_table.php\npublic function up()\n{\n    Schema::create('users', function (Blueprint $table) {\n        $table-&gt;id();\n        \/\/ NULL\u8a31\u5bb9\u306e\u5834\u5408\u306f\u5fc5\u305anullable()\u3092\u6307\u5b9a\n        $table-&gt;string('name', 100)-&gt;nullable();\n        \/\/ \u30e6\u30cb\u30fc\u30af\u5236\u7d04\u306b\u306f\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u81ea\u52d5\u4f5c\u6210\u3055\u308c\u308b\n        $table-&gt;string('email')-&gt;unique();\n        \/\/ enum\u306e\u4f7f\u7528\u306f\u614e\u91cd\u306b\uff08\u5c06\u6765\u306e\u5909\u66f4\u304c\u56f0\u96e3\uff09\n        $table-&gt;enum('status', ['active', 'inactive', 'banned'])\n              -&gt;default('active');\n        \/\/ \u5916\u90e8\u30ad\u30fc\u306f\u5fc5\u305a\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f5c\u6210\n        $table-&gt;foreignId('department_id')\n              -&gt;constrained()\n              -&gt;onDelete('cascade');\n        $table-&gt;timestamps();\n        \/\/ \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u305f\u3081\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\n        $table-&gt;index(['status', 'created_at']);\n    });\n}\n\npublic function down()\n{\n    \/\/ \u78ba\u5b9f\u306b\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u3067\u304d\u308b\u3088\u3046\u306b\u8a18\u8ff0\n    Schema::dropIfExists('users');\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30c6\u30fc\u30d6\u30eb\u66f4\u65b0\u306e\u5b89\u5168\u306a\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=\"\">\/\/ add_columns_to_users_table.php\npublic function up()\n{\n    Schema::table('users', function (Blueprint $table) {\n        \/\/ \u65b0\u898f\u30ab\u30e9\u30e0\u8ffd\u52a0\u6642\u306f\u5fc5\u305anullable()\u304bdefault()\u3092\u6307\u5b9a\n        $table-&gt;string('phone')-&gt;nullable()-&gt;after('email');\n\n        \/\/ \u65e2\u5b58\u30ab\u30e9\u30e0\u306e\u5909\u66f4\n        if (Schema::hasColumn('users', 'name')) {\n            $table-&gt;string('name', 150)-&gt;change();\n        }\n\n        \/\/ \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u8ffd\u52a0\n        $table-&gt;index('phone');\n    });\n}\n\npublic function down()\n{\n    Schema::table('users', function (Blueprint $table) {\n        $table-&gt;dropColumn('phone');\n        \/\/ \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u524a\u9664\u3082\u5fd8\u308c\u305a\u306b\n        $table-&gt;dropIndex(['phone']);\n    });\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u306e\u9069\u5207\u306a\u7ba1\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ create_posts_table.php\npublic function up()\n{\n    Schema::create('posts', function (Blueprint $table) {\n        $table-&gt;id();\n        \/\/ \u5916\u90e8\u30ad\u30fc\u5236\u7d04\u306e\u8a73\u7d30\u306a\u8a2d\u5b9a\n        $table-&gt;foreignId('user_id')\n              -&gt;constrained()\n              -&gt;onDelete('cascade')\n              -&gt;onUpdate('cascade');\n        $table-&gt;string('title');\n        $table-&gt;text('content');\n        \/\/ \u8907\u5408\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u4f5c\u6210\n        $table-&gt;unique(['user_id', 'title']);\n        $table-&gt;timestamps();\n        $table-&gt;softDeletes();\n    });\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-6\">\u672c\u756a\u74b0\u5883\u3067\u3082\u5b89\u5168\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u66f4\u65b0\u624b\u6cd5<\/h3>\n\n\n\n<p>\u672c\u756a\u74b0\u5883\u3067\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u66f4\u65b0\u306f\u7279\u306b\u614e\u91cd\u306b\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5b89\u5168\u306a\u30c7\u30d7\u30ed\u30a4\u30e1\u30f3\u30c8\u30d7\u30ed\u30bb\u30b9<\/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=\"\"># \u672c\u756a\u74b0\u5883\u3067\u306e\u63a8\u5968\u30b3\u30de\u30f3\u30c9\nphp artisan migrate --pretend  # \u5b9f\u884c\u3055\u308c\u308bSQL\u306e\u78ba\u8a8d\nphp artisan migrate --force    # \u672c\u756a\u74b0\u5883\u3067\u306e\u5f37\u5236\u5b9f\u884c\nphp artisan migrate:status     # \u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u72b6\u614b\u306e\u78ba\u8a8d<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30c7\u30fc\u30bf\u640d\u5931\u3092\u9632\u3050\u305f\u3081\u306e\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=\"\">public function up()\n{\n    \/\/ \u4e00\u6642\u30c6\u30fc\u30d6\u30eb\u3092\u4f7f\u7528\u3057\u305f\u5b89\u5168\u306a\u30c7\u30fc\u30bf\u79fb\u884c\n    Schema::create('users_new', function (Blueprint $table) {\n        \/\/ \u65b0\u3057\u3044\u30b9\u30ad\u30fc\u30de\u3067\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\n    });\n\n    \/\/ \u30c7\u30fc\u30bf\u306e\u79fb\u884c\n    DB::statement('INSERT INTO users_new SELECT * FROM users');\n\n    \/\/ \u30c6\u30fc\u30d6\u30eb\u306e\u5165\u308c\u66ff\u3048\n    Schema::rename('users', 'users_old');\n    Schema::rename('users_new', 'users');\n\n    \/\/ \u53e4\u3044\u30c6\u30fc\u30d6\u30eb\u306f\u78ba\u8a8d\u5f8c\u306b\u524a\u9664\n    \/\/ Schema::dropIfExists('users_old');\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30d0\u30c3\u30c1\u51e6\u7406\u306b\u3088\u308b\u5927\u898f\u6a21\u30c7\u30fc\u30bf\u66f4\u65b0<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public function up()\n{\n    \/\/ \u5927\u91cf\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u51e6\u7406\u3059\u308b\u5834\u5408\n    User::chunk(1000, function ($users) {\n        foreach ($users as $user) {\n            \/\/ \u30c7\u30fc\u30bf\u66f4\u65b0\u51e6\u7406\n        }\n    });\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u4f5c\u6210\u3092\u52b9\u7387\u5316\u3059\u308b\u30b7\u30fc\u30c7\u30a3\u30f3\u30b0\u6226\u7565<\/h3>\n\n\n\n<p>\u52b9\u7387\u7684\u306a\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u4f5c\u6210\u306e\u305f\u3081\u306e\u30b7\u30fc\u30c7\u30a3\u30f3\u30b0\u5b9f\u88c5\u4f8b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u57fa\u672c\u7684\u306a\u30b7\u30fc\u30c0\u30fc\u306e\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ UsersTableSeeder.php\npublic function run()\n{\n    \/\/ \u958b\u767a\u74b0\u5883\u7528\u306e\u8a73\u7d30\u306a\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\n    User::factory()-&gt;count(50)-&gt;create()-&gt;each(function ($user) {\n        \/\/ \u95a2\u9023\u30c7\u30fc\u30bf\u306e\u4f5c\u6210\n        $user-&gt;posts()-&gt;saveMany(\n            Post::factory()-&gt;count(3)-&gt;make()\n        );\n    });\n\n    \/\/ \u672c\u756a\u74b0\u5883\u7528\u306e\u521d\u671f\u30c7\u30fc\u30bf\n    User::create([\n        'name' =&gt; 'Admin User',\n        'email' =&gt; 'admin@example.com',\n        'role' =&gt; 'admin'\n    ]);\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30d5\u30a1\u30af\u30c8\u30ea\u30fc\u306e\u52b9\u679c\u7684\u306a\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=\"\">\/\/ UserFactory.php\npublic function definition()\n{\n    return [\n        'name' =&gt; fake()-&gt;name(),\n        'email' =&gt; fake()-&gt;unique()-&gt;safeEmail(),\n        'status' =&gt; fake()-&gt;randomElement(['active', 'inactive']),\n        \/\/ \u72b6\u614b\u306b\u5fdc\u3058\u305f\u5024\u306e\u8a2d\u5b9a\n        'verified_at' =&gt; $this-&gt;faker-&gt;boolean(80) \n            ? now() \n            : null,\n    ];\n}\n\n\/\/ \u72b6\u614b\u306e\u5b9a\u7fa9\npublic function active()\n{\n    return $this-&gt;state(function (array $attributes) {\n        return [\n            'status' =&gt; 'active',\n            'verified_at' =&gt; now(),\n        ];\n    });\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u74b0\u5883\u5225\u306e\u30b7\u30fc\u30c7\u30a3\u30f3\u30b0\u5236\u5fa1<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ DatabaseSeeder.php\npublic function run()\n{\n    if (app()-&gt;environment('local', 'development')) {\n        \/\/ \u958b\u767a\u74b0\u5883\u7528\u306e\u5927\u91cf\u30c7\u30fc\u30bf\n        $this-&gt;call([\n            UsersTableSeeder::class,\n            PostsTableSeeder::class,\n            CommentsTableSeeder::class,\n        ]);\n    } else {\n        \/\/ \u672c\u756a\u74b0\u5883\u7528\u306e\u6700\u5c0f\u30c7\u30fc\u30bf\n        $this-&gt;call(ProductionDataSeeder::class);\n    }\n}<\/pre>\n\n\n\n<p>\u5b9f\u88c5\u4e0a\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306f\u5e38\u306b\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u53ef\u80fd\u306a\u5f62\u3067\u5b9f\u88c5\u3059\u308b<\/li>\n\n\n\n<li>\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u64cd\u4f5c\u306f\u5c0f\u3055\u306a\u30d0\u30c3\u30c1\u306b\u5206\u5272\u3059\u308b<\/li>\n\n\n\n<li>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3068\u5916\u90e8\u30ad\u30fc\u5236\u7d04\u306f\u614e\u91cd\u306b\u8a2d\u8a08\u3059\u308b<\/li>\n\n\n\n<li>\u30b7\u30fc\u30c7\u30a3\u30f3\u30b0\u306f\u74b0\u5883\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u30c7\u30fc\u30bf\u91cf\u3092\u8a2d\u5b9a\u3059\u308b<\/li>\n\n\n\n<li>\u30d5\u30a1\u30af\u30c8\u30ea\u30fc\u306f\u518d\u5229\u7528\u53ef\u80fd\u306a\u5f62\u3067\u5b9f\u88c5\u3059\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u4ee5\u4e0a\u306e\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3068\u30b7\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u5b9f\u88c5\u65b9\u6cd5\u3092\u9069\u5207\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u52b9\u7387\u7684\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7ba1\u7406\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u57fa\u76e4\u306e\u4e0a\u306b\u69cb\u7bc9\u3059\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306e\u6700\u9069\u5316\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-8\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306e\u6700\u9069\u5316<\/h2>\n\n\n\n<p>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u898f\u6a21\u304c\u5927\u304d\u304f\u306a\u308b\u306b\u3064\u308c\u3066\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306e\u6700\u9069\u5316\u304c\u91cd\u8981\u306b\u306a\u3063\u3066\u304d\u307e\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5b9f\u8df5\u7684\u306a\u6700\u9069\u5316\u624b\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">N+1\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a2\u30af\u30bb\u30b9\u306e\u6700\u9069\u5316<\/h3>\n\n\n\n<p>N+1\u554f\u984c\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a2\u30af\u30bb\u30b9\u306b\u304a\u3051\u308b\u6700\u3082\u4e00\u822c\u7684\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u554f\u984c\u306e1\u3064\u3067\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>N+1\u554f\u984c\u306e\u691c\u51fa\u3068\u89e3\u6c7a<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u554f\u984c\u306e\u3042\u308b\u30b3\u30fc\u30c9\n$posts = Post::all();  \/\/ 1\u56de\u76ee\u306e\u30af\u30a8\u30ea\nforeach ($posts as $post) {\n    $post-&gt;author-&gt;name;  \/\/ N\u56de\u306e\u30af\u30a8\u30ea\n}\n\n\/\/ Eager\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\u306b\u3088\u308b\u89e3\u6c7a\n$posts = Post::with('author')-&gt;get();  \/\/ 2\u56de\u306e\u30af\u30a8\u30ea\u306e\u307f\n\n\/\/ \u5fc5\u8981\u306a\u30ab\u30e9\u30e0\u306e\u307f\u3092\u53d6\u5f97\n$posts = Post::with(['author:id,name'])-&gt;get();\n\n\/\/ \u6761\u4ef6\u4ed8\u304d\u306eEager\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\n$posts = Post::with(['comments' =&gt; function($query) {\n    $query-&gt;where('approved', true)\n          -&gt;select('id', 'post_id', 'content');\n}])-&gt;get();<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30af\u30a8\u30ea\u306e\u6700\u9069\u5316\u30c4\u30fc\u30eb<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30af\u30a8\u30ea\u30ed\u30b0\u306e\u6709\u52b9\u5316\uff08\u958b\u767a\u74b0\u5883\uff09\nDB::enableQueryLog();\n\n\/\/ \u30af\u30a8\u30ea\u306e\u5b9f\u884c\n$users = User::with('posts')-&gt;get();\n\n\/\/ \u30af\u30a8\u30ea\u30ed\u30b0\u306e\u78ba\u8a8d\ndd(DB::getQueryLog());\n\n\/\/ \u30c7\u30d0\u30c3\u30b0\u30d0\u30fc\u3067\u306e\u78ba\u8a8d\n\/\/ config\/debugbar.php\n'options' =&gt; [\n    'db' =&gt; [\n        'with_params' =&gt; true,\n        'backtrace' =&gt; true,\n        'timeline' =&gt; true,\n        'explain' =&gt; [\n            'enabled' =&gt; true,\n        ],\n    ],\n],<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30b5\u30d6\u30af\u30a8\u30ea\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=\"\">\/\/ \u975e\u52b9\u7387\u306a\u30b5\u30d6\u30af\u30a8\u30ea\n$users = User::all();\nforeach ($users as $user) {\n    $lastPost = $user-&gt;posts()-&gt;latest()-&gt;first();\n}\n\n\/\/ with\u3092\u4f7f\u7528\u3057\u305f\u6700\u9069\u5316\n$users = User::withLastPost()-&gt;get();\n\n\/\/ \u30b9\u30b3\u30fc\u30d7\u306e\u5b9a\u7fa9\npublic function scopeWithLastPost($query)\n{\n    return $query-&gt;addSelect(['last_post_id' =&gt; \n        Post::select('id')\n            -&gt;whereColumn('user_id', 'users.id')\n            -&gt;latest()\n            -&gt;limit(1)\n    ])-&gt;with(['lastPost' =&gt; function ($query) {\n        $query-&gt;withDefault();\n    }]);\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u6d3b\u7528\u3057\u305f\u9ad8\u901f\u306a\u30c7\u30fc\u30bf\u53d6\u5f97\u624b\u6cd5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u57fa\u672c\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u57fa\u672c\u7684\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u4f7f\u7528\n$value = Cache::remember('users', 3600, function () {\n    return User::active()-&gt;get();\n});\n\n\/\/ \u30bf\u30b0\u4ed8\u304d\u30ad\u30e3\u30c3\u30b7\u30e5\nCache::tags(['users', 'posts'])-&gt;remember('user.posts', 3600, function () {\n    return User::with('posts')-&gt;get();\n});\n\n\/\/ \u30e2\u30c7\u30eb\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\nclass User extends Model\n{\n    public function posts()\n    {\n        return $this-&gt;hasMany(Post::class)\n                    -&gt;remember(3600);\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u81ea\u52d5\u66f4\u65b0<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class User extends Model\n{\n    protected static function booted()\n    {\n        \/\/ \u30e2\u30c7\u30eb\u66f4\u65b0\u6642\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u81ea\u52d5\u30af\u30ea\u30a2\n        static::updated(function ($user) {\n            Cache::tags(['users'])-&gt;flush();\n        });\n    }\n\n    \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u30ad\u30fc\u306e\u52d5\u7684\u751f\u6210\n    public function getCacheKey()\n    {\n        return sprintf(\n            \"%s\/%s-%s\",\n            $this-&gt;getTable(),\n            $this-&gt;getKey(),\n            $this-&gt;updated_at-&gt;timestamp\n        );\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u5206\u6563\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Redis\u3092\u4f7f\u7528\u3057\u305f\u5206\u6563\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u8a2d\u5b9a\n'redis' =&gt; [\n    'client' =&gt; env('REDIS_CLIENT', 'phpredis'),\n    'clusters' =&gt; [\n        'default' =&gt; [\n            [\n                'host' =&gt; env('REDIS_HOST', '127.0.0.1'),\n                'password' =&gt; env('REDIS_PASSWORD'),\n                'port' =&gt; env('REDIS_PORT', 6379),\n                'database' =&gt; 0,\n            ],\n        ],\n    ],\n],\n\n\/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u4f7f\u7528\n$value = Redis::remember('key', 3600, function () {\n    return expensive_operation();\n});<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">\u5927\u898f\u6a21\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u306e\u52b9\u7387\u7684\u306a\u904b\u7528\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30af\u30a8\u30ea\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=\"\">\/\/ \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u6d3b\u7528\u3057\u305f\u30af\u30a8\u30ea\n$users = User::select(['id', 'name', 'email'])  \/\/ \u5fc5\u8981\u306a\u30ab\u30e9\u30e0\u306e\u307f\u9078\u629e\n    -&gt;where('status', 'active')\n    -&gt;whereHas('subscriptions', function ($query) {\n        $query-&gt;where('expires_at', '&gt;', now());\n    })\n    -&gt;orderBy('created_at', 'desc')\n    -&gt;limit(1000)\n    -&gt;get();\n\n\/\/ \u30af\u30a8\u30ea\u306e\u30c1\u30e3\u30f3\u30af\u51e6\u7406\nUser::chunk(1000, function ($users) {\n    foreach ($users as $user) {\n        \/\/ \u30d0\u30c3\u30c1\u51e6\u7406\n    }\n});\n\n\/\/ LazyCollection \u306e\u6d3b\u7528\nUser::lazy()-&gt;each(function ($user) {\n    \/\/ \u30e1\u30e2\u30ea\u52b9\u7387\u306e\u826f\u3044\u51e6\u7406\n});<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30cb\u30f3\u30b0\u3068\u30b7\u30e3\u30fc\u30c7\u30a3\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=\"\">\/\/ \u65e5\u4ed8\u30d9\u30fc\u30b9\u306e\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30cb\u30f3\u30b0\u4f8b\nclass Log extends Model\n{\n    public function getConnection()\n    {\n        $date = $this-&gt;attributes['created_at'] ?? now();\n        $partition = Carbon::parse($date)-&gt;format('Y_m');\n\n        return $this-&gt;setConnection(\"logs_{$partition}\");\n    }\n}\n\n\/\/ \u30b7\u30e3\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u5b9f\u88c5\u4f8b\nclass User extends Model\n{\n    public function resolveConnectionName()\n    {\n        return 'database_' . ($this-&gt;id % 4);  \/\/ 4\u3064\u306e\u30b7\u30e3\u30fc\u30c9\u306b\u5206\u6563\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30af\u30a8\u30ea\u306e\u5b9f\u884c\u6642\u9593\u8a08\u6e2c\n$start = microtime(true);\n\n$result = DB::select(...);\n\n$time = microtime(true) - $start;\nLog::info(\"Query execution time: {$time}s\");\n\n\/\/ \u30b9\u30ed\u30fc\u30af\u30a8\u30ea\u30ed\u30b0\u306e\u8a2d\u5b9a\n'mysql' =&gt; [\n    'dump' =&gt; [\n        'enabled' =&gt; true,\n        'threshold' =&gt; 100,  \/\/ 100ms\u4ee5\u4e0a\u306e\u30af\u30a8\u30ea\u3092\u30ed\u30b0\n    ],\n],<\/pre>\n\n\n\n<p>\u5b9f\u88c5\u4e0a\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f\u614e\u91cd\u306b\u8a2d\u8a08\u3057\u3001\u5fc5\u8981\u306a\u3082\u306e\u3060\u3051\u3092\u4f5c\u6210\u3059\u308b<\/li>\n\n\n\n<li>\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u51e6\u7406\u306f\u5e38\u306b\u30d0\u30c3\u30c1\u51e6\u7406\u3067\u884c\u3046<\/li>\n\n\n\n<li>\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6709\u52b9\u671f\u9650\u306f\u9069\u5207\u306b\u8a2d\u5b9a\u3059\u308b<\/li>\n\n\n\n<li>\u5b9a\u671f\u7684\u306b\u30af\u30a8\u30ea\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3059\u308b<\/li>\n\n\n\n<li>\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30cb\u30f3\u30b0\u3092\u691c\u8a0e\u3059\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306e\u6700\u9069\u5316\u306f\u7d99\u7d9a\u7684\u306a\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u6700\u9069\u5316\u3092\u5b89\u5168\u306b\u884c\u3046\u305f\u3081\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-12\">\u5b9f\u8df5\u7684\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56<\/h2>\n\n\n\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u4fe1\u983c\u6027\u3068\u5b89\u5168\u6027\u3092\u78ba\u4fdd\u3059\u308b\u4e0a\u3067\u6700\u3082\u91cd\u8981\u306a\u8981\u7d20\u306e1\u3064\u3067\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5b9f\u8df5\u7684\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-13\">SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u653b\u6483\u304b\u3089\u306e\u78ba\u5b9f\u306a\u9632\u5fa1\u65b9\u6cd5<\/h3>\n\n\n\n<p>SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306f\u6700\u3082\u4e00\u822c\u7684\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8105\u5a01\u306e1\u3064\u3067\u3059\u3002Laravel\u306f\u5f37\u529b\u306a\u9632\u5fa1\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30af\u30a8\u30ea\u30d3\u30eb\u30c0\u30fc\u3068Eloquent\u306e\u5b89\u5168\u306a\u4f7f\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u60aa\u3044\u4f8b\uff08SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306e\u5371\u967a\u6027\uff09\n$results = DB::select(\"SELECT * FROM users WHERE name = '\" . $request-&gt;input('name') . \"'\");\n\n\/\/ \u826f\u3044\u4f8b\uff08\u30af\u30a8\u30ea\u30d3\u30eb\u30c0\u30fc\u306e\u4f7f\u7528\uff09\n$results = DB::table('users')\n    -&gt;where('name', $request-&gt;input('name'))\n    -&gt;get();\n\n\/\/ Eloquent\u30e2\u30c7\u30eb\u306e\u4f7f\u7528\n$users = User::where('name', $request-&gt;input('name'))-&gt;get();\n\n\/\/ \u751f\u306eSQL\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\n$results = DB::select('SELECT * FROM users WHERE name = ?', [\n    $request-&gt;input('name')\n]);<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30db\u30ef\u30a4\u30c8\u30ea\u30b9\u30c8\u306b\u3088\u308b\u5165\u529b\u5024\u306e\u691c\u8a3c<\/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    \/\/ \u8a31\u53ef\u3055\u308c\u305f\u30bd\u30fc\u30c8\u9805\u76ee\u306e\u5b9a\u7fa9\n    private $allowedSortFields = ['name', 'email', 'created_at'];\n\n    public function index(Request $request)\n    {\n        $sortField = in_array($request-&gt;input('sort'), $this-&gt;allowedSortFields)\n            ? $request-&gt;input('sort')\n            : 'created_at';\n\n        return User::orderBy($sortField)\n            -&gt;paginate(20);\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u6a29\u9650\u306e\u9069\u5207\u306a\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=\"\">\/\/ config\/database.php\u3067\u306e\u6a29\u9650\u8a2d\u5b9a\n'mysql' =&gt; [\n    'read' =&gt; [\n        'host' =&gt; env('DB_READ_HOST', '127.0.0.1'),\n        'username' =&gt; env('DB_READ_USERNAME'),\n        'password' =&gt; env('DB_READ_PASSWORD'),\n    ],\n    'write' =&gt; [\n        'host' =&gt; env('DB_WRITE_HOST', '127.0.0.1'),\n        'username' =&gt; env('DB_WRITE_USERNAME'),\n        'password' =&gt; env('DB_WRITE_PASSWORD'),\n    ],\n],\n\n\/\/ \u30e2\u30c7\u30eb\u3067\u306e\u8aad\u307f\u66f8\u304d\u5206\u96e2\u306e\u5b9f\u88c5\nclass User extends Model\n{\n    protected static function booted()\n    {\n        static::addGlobalScope('active', function ($query) {\n            \/\/ \u8aad\u307f\u53d6\u308a\u5c02\u7528\u63a5\u7d9a\u306e\u4f7f\u7528\n            if (app()-&gt;environment('production')) {\n                $query-&gt;connection('mysql.read');\n            }\n        });\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u6a5f\u5bc6\u30c7\u30fc\u30bf\u306e\u5b89\u5168\u306a\u53d6\u308a\u6271\u3044\u624b\u6cd5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30fc\u30bf\u306e\u6697\u53f7\u5316\u3068\u5fa9\u53f7\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=\"\">\/\/ \u30e2\u30c7\u30eb\u3067\u306e\u6697\u53f7\u5316\u306e\u5b9f\u88c5\nclass User extends Model\n{\n    \/\/ \u81ea\u52d5\u7684\u306b\u6697\u53f7\u5316\u3055\u308c\u308b\u30ab\u30e9\u30e0\n    protected $encryptable = [\n        'social_security_number',\n        'credit_card_number'\n    ];\n\n    public function setAttribute($key, $value)\n    {\n        if (in_array($key, $this-&gt;encryptable)) {\n            $value = encrypt($value);\n        }\n\n        return parent::setAttribute($key, $value);\n    }\n\n    public function getAttribute($key)\n    {\n        $value = parent::getAttribute($key);\n\n        if (in_array($key, $this-&gt;encryptable) &amp;&amp; $value) {\n            return decrypt($value);\n        }\n\n        return $value;\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u30bb\u30ad\u30e5\u30a2\u306a\u4fdd\u5b58<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u30cf\u30c3\u30b7\u30e5\u5316\nclass User extends Authenticatable\n{\n    public function setPasswordAttribute($value)\n    {\n        $this-&gt;attributes['password'] = Hash::make($value);\n    }\n}\n\n\/\/ \u30d1\u30b9\u30ef\u30fc\u30c9\u30ea\u30bb\u30c3\u30c8\u306e\u5b89\u5168\u306a\u5b9f\u88c5\nclass ResetPasswordController extends Controller\n{\n    protected function resetPassword($user, $password)\n    {\n        $user-&gt;password = Hash::make($password);\n        $user-&gt;setRememberToken(Str::random(60));\n        $user-&gt;save();\n\n        event(new PasswordReset($user));\n\n        \/\/ \u4ed6\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u7121\u52b9\u5316\n        Auth::logoutOtherDevices($password);\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u6a5f\u5bc6\u30c7\u30fc\u30bf\u306e\u524a\u9664\u3068\u76e3\u67fb<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u81ea\u52d5\u524a\u9664\u306e\u5b9f\u88c5\nclass SensitiveData extends Model\n{\n    protected static function booted()\n    {\n        \/\/ 90\u65e5\u4ee5\u4e0a\u7d4c\u904e\u3057\u305f\u30c7\u30fc\u30bf\u306e\u81ea\u52d5\u524a\u9664\n        static::addGlobalScope('auto_delete', function ($query) {\n            $query-&gt;where('created_at', '&gt;', now()-&gt;subDays(90));\n        });\n    }\n}\n\n\/\/ \u30c7\u30fc\u30bf\u30a2\u30af\u30bb\u30b9\u306e\u76e3\u67fb\u30ed\u30b0\nclass User extends Model\n{\n    public static function boot()\n    {\n        parent::boot();\n\n        static::retrieved(function ($model) {\n            activity()\n                -&gt;performedOn($model)\n                -&gt;log('\u30c7\u30fc\u30bf\u306b\u30a2\u30af\u30bb\u30b9\u3057\u307e\u3057\u305f');\n        });\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-15\">\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u3068\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u88c5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30dd\u30ea\u30b7\u30fc\u3092\u4f7f\u7528\u3057\u305f\u30a2\u30af\u30bb\u30b9\u5236\u5fa1<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ UserPolicy\u306e\u5b9f\u88c5\nclass UserPolicy\n{\n    public function view(User $user, User $target)\n    {\n        return $user-&gt;isAdmin() || $user-&gt;id === $target-&gt;id;\n    }\n\n    public function update(User $user, User $target)\n    {\n        return $user-&gt;isAdmin() || $user-&gt;id === $target-&gt;id;\n    }\n}\n\n\/\/ \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3067\u306e\u4f7f\u7528\nclass UserController extends Controller\n{\n    public function show(User $user)\n    {\n        $this-&gt;authorize('view', $user);\n        return view('users.show', compact('user'));\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u306e\u5805\u7262\u306a\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class UserRequest extends FormRequest\n{\n    public function rules()\n    {\n        return [\n            'email' =&gt; [\n                'required',\n                'email',\n                Rule::unique('users')-&gt;ignore($this-&gt;user),\n                'max:255'\n            ],\n            'password' =&gt; [\n                Password::min(8)\n                    -&gt;letters()\n                    -&gt;mixedCase()\n                    -&gt;numbers()\n                    -&gt;symbols()\n                    -&gt;uncompromised()\n            ],\n            \/\/ SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56\n            'name' =&gt; ['required', 'string', 'max:255', 'regex:\/^[\\p{L}\\s-]+$\/u'],\n        ];\n    }\n\n    \/\/ \u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u524d\u306e\u5165\u529b\u5024\u306e\u30b5\u30cb\u30bf\u30a4\u30ba\n    protected function prepareForValidation()\n    {\n        $this-&gt;merge([\n            'name' =&gt; strip_tags($this-&gt;name),\n            'email' =&gt; strtolower($this-&gt;email),\n        ]);\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30ec\u30fc\u30c8\u5236\u9650\u306e\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30eb\u30fc\u30c8\u3067\u306e\u30ec\u30fc\u30c8\u5236\u9650\nRoute::middleware(['auth:api', 'throttle:60,1'])-&gt;group(function () {\n    Route::get('\/users', 'UserController@index');\n});\n\n\/\/ \u30ab\u30b9\u30bf\u30e0\u30ec\u30fc\u30c8\u5236\u9650\u306e\u5b9f\u88c5\nclass CustomThrottleRequests extends ThrottleRequests\n{\n    protected function resolveRequestSignature($request)\n    {\n        return sha1(implode('|', [\n            $request-&gt;ip(),\n            $request-&gt;user() ? $request-&gt;user()-&gt;id : '',\n            $request-&gt;route()-&gt;getName(),\n        ]));\n    }\n}<\/pre>\n\n\n\n<p>\u5b9f\u88c5\u4e0a\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ul 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