{"id":23013,"date":"2024-11-21T13:32:31","date_gmt":"2024-11-21T05:32:31","guid":{"rendered":"https:\/\/fwq.ai\/blog\/23013\/"},"modified":"2024-11-21T13:32:31","modified_gmt":"2024-11-21T05:32:31","slug":"laravel-%e6%9f%a5%e8%af%a2%e8%af%ad%e6%b3%95","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/23013\/","title":{"rendered":"laravel \u67e5\u8be2\u8bed\u6cd5"},"content":{"rendered":"

laravel\u662f\u73b0\u5982\u4eca\u975e\u5e38\u6d41\u884c\u7684php\u6846\u67b6\u4e4b\u4e00\uff0c\u5b83\u7684\u67e5\u8be2\u8bed\u6cd5\u4f18\u96c5\u7b80\u5355\uff0c\u6613\u4e8e\u4f7f\u7528\u3002\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5c06\u6df1\u5165\u63a2\u8ba8laravel\u7684\u67e5\u8be2\u8bed\u6cd5\uff0c\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u7528\u7684\u67e5\u8be2\u65b9\u6cd5\uff0c\u4ee5\u53ca\u5982\u4f55\u8fdb\u884c\u590d\u6742\u7684\u67e5\u8be2\u3002<\/p>\n

Laravel\u67e5\u8be2\u7684\u57fa\u7840\u8bed\u6cd5
\u5728Laravel\u4e2d\uff0c\u67e5\u8be2\u8bed\u53e5\u662f\u4f7f\u7528Eloquent ORM\u6765\u6784\u5efa\u7684\u3002ORM\u5373\u5bf9\u8c61\u5173\u7cfb\u6620\u5c04\uff0c\u5b83\u5141\u8bb8\u6211\u4eec\u4ee5\u9762\u5411\u5bf9\u8c61\u7684\u65b9\u5f0f\u6765\u64cd\u4f5c\u6570\u636e\u5e93\uff0c\u6781\u5927\u5730\u7b80\u5316\u4e86\u4e0e\u6570\u636e\u5e93\u7684\u4ea4\u4e92\u8fc7\u7a0b\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u4f7f\u7528Laravel\u67e5\u8be2\u8bed\u6cd5\u7684\u793a\u4f8b\uff1a<\/p>\n

\/\/\u83b7\u53d6\u5355\u4e2a\u7528\u6237
$user = User::find(1);<\/p>\n

\/\/\u83b7\u53d6\u7528\u6237\u5217\u8868
$users = User::all();<\/p>\n

\/\/\u6761\u4ef6\u7b5b\u9009\uff0c\u83b7\u53d6\u6307\u5b9a\u6761\u4ef6\u4e0b\u7684\u7528\u6237\u5217\u8868
$users = User::where(‘age’, ‘>’, 18)->get();<\/p>\n

\/\/\u66f4\u65b0\u6570\u636e
$user->name = ‘new name’;
$user->save();<\/p>\n

\/\/\u5220\u9664\u6570\u636e
$user->delete();<\/p>\n

\u5982\u4e0a\u6240\u793a\uff0c\u4f7f\u7528Laravel\u67e5\u8be2\u8bed\u6cd5\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u5b9e\u73b0\u57fa\u672c\u7684CURD\u64cd\u4f5c\u3002\u4e0b\u9762\u6211\u4eec\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u7528\u7684\u67e5\u8be2\u65b9\u6cd5\u3002<\/p>\n

\u5e38\u7528\u7684\u67e5\u8be2\u65b9\u6cd5<\/p>\n

    \n
  1. where()
    where()\u65b9\u6cd5\u662f\u975e\u5e38\u5e38\u89c1\u7684\u6761\u4ef6\u7b5b\u9009\u65b9\u6cd5\u3002\u6839\u636e\u7ed9\u5b9a\u7684\u6761\u4ef6\u7b5b\u9009\u51fa\u7b26\u5408\u8981\u6c42\u7684\u8bb0\u5f55\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n

    $users = User::where(‘age’, ‘>’, 18)->where(‘gender’, ‘male’)->get();<\/p>\n

    where()\u65b9\u6cd5\u8fd8\u53ef\u4ee5\u63a5\u6536\u7b2c\u4e09\u4e2a\u53c2\u6570\uff0c\u7528\u4e8e\u6307\u5b9a\u64cd\u4f5c\u7b26\uff0c\u4f8b\u5982\uff1a<\/p>\n

    $users = User::where(‘age’, ‘>=’, 18)->get();<\/p>\n

      \n
    1. orderBy()
      orderBy()\u65b9\u6cd5\u7528\u4e8e\u6392\u5e8f\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u6309\u7167\u7528\u6237\u7684\u5e74\u9f84\u8fdb\u884c\u6392\u5e8f\uff1a<\/li>\n<\/ol>\n

      $users = User::orderBy(‘age’)->get();<\/p>\n

      \u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0corderBy()\u65b9\u6cd5\u662f\u6309\u7167\u5347\u5e8f\u6392\u5217\u7684\u3002\u5982\u679c\u8981\u6309\u7167\u964d\u5e8f\u6392\u5217\uff0c\u5219\u53ef\u4ee5\u4f20\u9012\u4e00\u4e2aDESC\u53c2\u6570\uff1a<\/p>\n

      $users = User::orderBy(‘age’, ‘desc’)->get();<\/p>\n

      \u53e6\u5916\uff0corderBy()\u65b9\u6cd5\u53ef\u4ee5\u63a5\u6536\u591a\u4e2a\u53c2\u6570\uff0c\u7528\u4e8e\u6307\u5b9a\u591a\u4e2a\u6392\u5e8f\u6761\u4ef6\uff1a<\/p>\n

      $users = User::orderBy(‘age’, ‘desc’)->orderBy(‘name’)->get();<\/p>\n

        \n
      1. select()
        select()\u65b9\u6cd5\u7528\u4e8e\u67e5\u8be2\u6307\u5b9a\u7684\u5217\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n

        $users = User::select(‘name’, ’email’)->get();<\/p>\n

        \u4e5f\u53ef\u4ee5\u4f7f\u7528*\u6765\u67e5\u8be2\u6240\u6709\u5217\uff1a<\/p>\n

        $users = User::select(‘*’)->get();<\/p>\n

          \n
        1. take()\u548cskip()
          take()\u65b9\u6cd5\u7528\u4e8e\u9650\u5236\u8fd4\u56de\u7684\u8bb0\u5f55\u6570\uff0cskip()\u5219\u662f\u7528\u4e8e\u8df3\u8fc7\u6307\u5b9a\u6570\u91cf\u7684\u8bb0\u5f55\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u67e5\u8be2\u524d10\u540d\u7528\u6237\uff1a<\/li>\n<\/ol>\n

          $users = User::take(10)->get();<\/p>\n

          \u4e5f\u53ef\u4ee5\u7528skip()\u65b9\u6cd5\u6765\u5b9e\u73b0\u5206\u9875\uff1a<\/p>\n

          $users = User::skip(10)->take(10)->get();<\/p>\n

            \n
          1. whereIn()\u548cwhereNotIn()
            whereIn()\u3001whereNotIn()\u65b9\u6cd5\u53ef\u4ee5\u7528\u4e8e\u5728\u67e5\u8be2\u4e2d\u4f7f\u7528IN\u548cNOT IN\u3002\u4f8b\u5982\uff0c\u83b7\u53d6\u5e74\u9f84\u572818\u5c81\u4ee5\u4e0b\u7684\u7528\u6237\u53ef\u4ee5\u8fd9\u6837\u5199\uff1a<\/li>\n<\/ol>\n

            $users = User::whereIn(‘age’, [16, 17, 18])->get();<\/p>\n

              \n
            1. whereNull()\u548cwhereNotNull()
              whereNull()\u65b9\u6cd5\u53ef\u4ee5\u7b5b\u9009\u51fa\u6307\u5b9a\u5217\u4e3a\u7a7a\u7684\u8bb0\u5f55\uff0cwhereNotNull()\u5219\u53ef\u4ee5\u7b5b\u9009\u51fa\u4e0d\u4e3a\u7a7a\u7684\u8bb0\u5f55\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n

              $users = User::whereNull(’email’)->get();<\/p>\n

                \n
              1. groupBy()\u548chaving()
                groupBy()\u65b9\u6cd5\u7528\u4e8e\u5bf9\u7ed3\u679c\u96c6\u8fdb\u884c\u5206\u7ec4\uff0c\u800chaving()\u65b9\u6cd5\u7528\u4e8e\u7b5b\u9009\u5206\u7ec4\u540e\u7684\u7ed3\u679c\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u6309\u7167\u6027\u522b\u5206\u7ec4\uff0c\u5e76\u7b5b\u9009\u51fa\u7537\u6027\u7528\u6237\u4e2d\u5e74\u9f84\u572820\u5c81\u4ee5\u4e0a\u7684\u7528\u6237\uff1a<\/li>\n<\/ol>\n

                $users = User::groupBy(‘gender’)->having(‘age’, ‘>’, 20)->get();<\/p>\n

                \u590d\u6742\u67e5\u8be2<\/p>\n

                \u4e0a\u9762\u4ecb\u7ecd\u7684\u662fLaravel\u67e5\u8be2\u8bed\u6cd5\u7684\u4e00\u4e9b\u57fa\u672c\u7528\u6cd5\u3002\u4f46\u662f\uff0c\u5728\u73b0\u5b9e\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u901a\u5e38\u9700\u8981\u67e5\u8be2\u7684\u6570\u636e\u53ef\u80fd\u975e\u5e38\u590d\u6742\uff0c\u9700\u8981\u4f7f\u7528\u66f4\u591a\u7684\u67e5\u8be2\u65b9\u6cd5\u6765\u5b9e\u73b0\u3002\u5728Laravel\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528Query Builder\u6765\u7f16\u5199\u66f4\u590d\u6742\u7684\u67e5\u8be2\u8bed\u53e5\u3002<\/p>\n

                \u4f8b\u5982\uff0c\u4e3a\u4e86\u67e5\u8be2\u7528\u6237\u7684\u8d2d\u4e70\u8bb0\u5f55\u4e2d\u7d2f\u79ef\u6d88\u8d39\u8d85\u8fc7500\u5143\u7684\u7528\u6237\uff0c\u53ef\u4ee5\u8fd9\u6837\u5199\uff1a<\/p>\n

                $users = DB::table(‘users’)<\/p>\n

                        -&gt;join('orders', 'users.id', '=', 'orders.user_id')\n        -&gt;select('users.id', 'users.name', 'users.email', DB::raw('SUM(orders.total) as total'))\n        -&gt;groupBy('users.id')\n        -&gt;having('total', '&gt;', 500)\n        -&gt;get();\n<\/pre>\n
                  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
                \u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86join()\u65b9\u6cd5\u6765\u8fde\u63a5\u7528\u6237\u8868\u548c\u8ba2\u5355\u8868\uff0c\u4f7f\u7528\u4e86groupBy()\u65b9\u6cd5\u6765\u5bf9\u7528\u6237\u8fdb\u884c\u5206\u7ec4\uff0c\u4f7f\u7528\u4e86having()\u65b9\u6cd5\u6765\u7b5b\u9009\u51fa\u7d2f\u79ef\u6d88\u8d39\u8d85\u8fc7500\u5143\u7684\u7528\u6237\u3002<\/p>\n
                \u603b\u7ed3<\/p>\n
                \u5728Laravel\u4e2d\uff0c\u4f7f\u7528Eloquent ORM\u53ef\u4ee5\u8f7b\u677e\u5b9e\u73b0\u57fa\u672c\u7684CURD\u64cd\u4f5c\u3002\u540c\u65f6\uff0c\u4f7f\u7528Query Builder\u53ef\u4ee5\u5b9e\u73b0\u66f4\u590d\u6742\u7684\u67e5\u8be2\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u60a8\u4e86\u89e3Laravel\u7684\u67e5\u8be2\u8bed\u6cd5\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n
                \u4ee5\u4e0a\u5c31\u662flaravel \u67e5\u8be2\u8bed\u6cd5\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
                laravel\u662f\u73b0\u5982\u4eca\u975e\u5e38\u6d41\u884c\u7684php\u6846\u67b6\u4e4b\u4e00\uff0c\u5b83\u7684\u67e5\u8be2\u8bed\u6cd5\u4f18\u96c5\u7b80\u5355\uff0c\u6613\u4e8e\u4f7f\u7528\u3002\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5c06\u6df1\u5165\u63a2\u8ba8laravel\u7684\u67e5\u8be2\u8bed\u6cd5\uff0c\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u7528\u7684\u67e5\u8be2\u65b9\u6cd5\uff0c\u4ee5\u53ca\u5982\u4f55\u8fdb\u884c\u590d\u6742\u7684\u67e5\u8be2\u3002 Laravel\u67e5\u8be2\u7684\u57fa\u7840\u8bed\u6cd5\u5728Laravel\u4e2d\uff0c\u67e5\u8be2\u8bed\u53e5\u662f\u4f7f\u7528Eloquent ORM\u6765\u6784\u5efa\u7684\u3002ORM\u5373\u5bf9\u8c61\u5173\u7cfb\u6620\u5c04\uff0c\u5b83\u5141\u8bb8\u6211\u4eec\u4ee5\u9762\u5411\u5bf9\u8c61\u7684\u65b9\u5f0f\u6765\u64cd\u4f5c\u6570\u636e\u5e93\uff0c\u6781\u5927\u5730\u7b80\u5316\u4e86\u4e0e\u6570\u636e\u5e93\u7684\u4ea4\u4e92\u8fc7\u7a0b\u3002 \u4ee5\u4e0b\u662f\u4f7f\u7528Laravel\u67e5\u8be2\u8bed\u6cd5\u7684\u793a\u4f8b\uff1a \/\/\u83b7\u53d6\u5355\u4e2a\u7528\u6237$user = User::find(1); \/\/\u83b7\u53d6\u7528\u6237\u5217\u8868$users = User::all(); \/\/\u6761\u4ef6\u7b5b\u9009\uff0c\u83b7\u53d6\u6307\u5b9a\u6761\u4ef6\u4e0b\u7684\u7528\u6237\u5217\u8868$users = User::where(‘age’, ‘>’, 18)->get(); \/\/\u66f4\u65b0\u6570\u636e$user->name = ‘new name’;$user->save(); \/\/\u5220\u9664\u6570\u636e$user->delete(); \u5982\u4e0a\u6240\u793a\uff0c\u4f7f\u7528Laravel\u67e5\u8be2\u8bed\u6cd5\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u5b9e\u73b0\u57fa\u672c\u7684CURD\u64cd\u4f5c\u3002\u4e0b\u9762\u6211\u4eec\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u7528\u7684\u67e5\u8be2\u65b9\u6cd5\u3002 \u5e38\u7528\u7684\u67e5\u8be2\u65b9\u6cd5 where()where()\u65b9\u6cd5\u662f\u975e\u5e38\u5e38\u89c1\u7684\u6761\u4ef6\u7b5b\u9009\u65b9\u6cd5\u3002\u6839\u636e\u7ed9\u5b9a\u7684\u6761\u4ef6\u7b5b\u9009\u51fa\u7b26\u5408\u8981\u6c42\u7684\u8bb0\u5f55\u3002\u4f8b\u5982\uff1a $users = User::where(‘age’, ‘>’, 18)->where(‘gender’, ‘male’)->get(); where()\u65b9\u6cd5\u8fd8\u53ef\u4ee5\u63a5\u6536\u7b2c\u4e09\u4e2a\u53c2\u6570\uff0c\u7528\u4e8e\u6307\u5b9a\u64cd\u4f5c\u7b26\uff0c\u4f8b\u5982\uff1a $users = User::where(‘age’, ‘>=’, 18)->get(); orderBy()orderBy()\u65b9\u6cd5\u7528\u4e8e\u6392\u5e8f\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u6309\u7167\u7528\u6237\u7684\u5e74\u9f84\u8fdb\u884c\u6392\u5e8f\uff1a $users = User::orderBy(‘age’)->get(); \u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0corderBy()\u65b9\u6cd5\u662f\u6309\u7167\u5347\u5e8f\u6392\u5217\u7684\u3002\u5982\u679c\u8981\u6309\u7167\u964d\u5e8f\u6392\u5217\uff0c\u5219\u53ef\u4ee5\u4f20\u9012\u4e00\u4e2aDESC\u53c2\u6570\uff1a $users = User::orderBy(‘age’, ‘desc’)->get(); \u53e6\u5916\uff0corderBy()\u65b9\u6cd5\u53ef\u4ee5\u63a5\u6536\u591a\u4e2a\u53c2\u6570\uff0c\u7528\u4e8e\u6307\u5b9a\u591a\u4e2a\u6392\u5e8f\u6761\u4ef6\uff1a $users = User::orderBy(‘age’, ‘desc’)->orderBy(‘name’)->get(); select()select()\u65b9\u6cd5\u7528\u4e8e\u67e5\u8be2\u6307\u5b9a\u7684\u5217\u3002\u4f8b\u5982\uff1a $users = User::select(‘name’, ’email’)->get(); \u4e5f\u53ef\u4ee5\u4f7f\u7528*\u6765\u67e5\u8be2\u6240\u6709\u5217\uff1a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-23013","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/23013","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=23013"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/23013\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=23013"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=23013"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=23013"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}