laravel \u662f\u4e00\u6b3e\u6d41\u884c\u7684 php web \u6846\u67b6\uff0c\u63d0\u4f9b\u4e86\u4e00\u4e9b\u975e\u5e38\u65b9\u4fbf\u7684\u529f\u80fd\u548c\u5de5\u5177\uff0c\u4f7f\u5f97 web \u5f00\u53d1\u53d8\u5f97\u66f4\u52a0\u7b80\u5355\u548c\u5feb\u901f\u3002\u5176\u4e2d\uff0cpivot \u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u529f\u80fd\uff0c\u7528\u4e8e\u5904\u7406\u591a\u5bf9\u591a\u5173\u7cfb\u3002\u4f46\u662f\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u53bb\u6389 pivot\u3002<\/p>\n
\u4e3a\u4ec0\u4e48\u8981\u53bb\u6389 Pivot\uff1f<\/p>\n
\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u6709\u65f6\u5019\u51fa\u73b0\u4e86 Pivot \u7684\u9650\u5236\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u5bf9\u591a\u5bf9\u591a\u5173\u7cfb\u8fdb\u884c\u66f4\u591a\u7684\u5b9a\u5236\u548c\u63a7\u5236\u3002\u6b64\u65f6\uff0c\u53bb\u6389 Pivot \u53ef\u4ee5\u63d0\u4f9b\u66f4\u5927\u7684\u7075\u6d3b\u6027\u3002\u4e0b\u9762\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u60c5\u51b5\uff1a<\/p>\n
\u5982\u4f55\u53bb\u6389 Pivot\uff1f<\/p>\n
\u53bb\u6389 Pivot \u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u4e0b\u9762\u4ecb\u7ecd\u4e24\u79cd\u5e38\u89c1\u7684\u65b9\u5f0f\u3002<\/p>\n
\u65b9\u6cd5\u4e00\uff1a\u624b\u52a8\u521b\u5efa\u4e2d\u95f4\u8868<\/p>\n
CREATE TABLE `user_role` (\n`id` int(11) unsigned NOT NULL AUTO_INCREMENT,\n`user_id` int(11) unsigned NOT NULL,\n`role_id` int(11) unsigned NOT NULL,\n`created_at` timestamp NULL DEFAULT NULL,\n`updated_at` timestamp NULL DEFAULT NULL,\nPRIMARY KEY (`id`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\n
- \u5728\u6a21\u578b\u4e2d\u5b9a\u4e49\u591a\u5bf9\u591a\u5173\u7cfb<\/li>\n<\/ol>\n
class User extends Model\n{\npublic function roles()\n{\nreturn $this->belongsToMany(Role::class, 'user_role', 'user_id', 'role_id');\n}\n}\n\nclass Role extends Model\n{\npublic function users()\n{\nreturn $this->belongsToMany(User::class, 'user_role', 'role_id', 'user_id');\n}\n}<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\n
- \u5728\u63a7\u5236\u5668\u4e2d\u4f7f\u7528<\/li>\n<\/ol>\n
$user = User::find(1);\n$roles = $user->roles;<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u65b9\u6cd5\u4e8c\uff1a\u4f7f\u7528\u4e2d\u95f4\u4ef6<\/p>\n
\n
- \u521b\u5efa\u4e00\u4e2a\u4e2d\u95f4\u4ef6<\/li>\n<\/ol>\n
php artisan make:middleware SimplifyPivotMiddleware<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\n
- \u5728\u4e2d\u95f4\u4ef6\u4e2d\u5904\u7406\u591a\u5bf9\u591a\u5173\u7cfb<\/li>\n<\/ol>\n
namespace AppHttpMiddleware;\n\nuse Closure;\n\nclass SimplifyPivotMiddleware\n{\npublic function handle($request, Closure $next)\n{\n$user = $request->user;\n$roles = $user->roles()->withTimestamps()->select('id', 'name')->get();\n$user->setRelation('roles', $roles);\nreturn $next($request);\n}\n}<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\n
- \u5728\u8def\u7531\u4e2d\u4f7f\u7528\u4e2d\u95f4\u4ef6<\/li>\n<\/ol>\n
Route::get('\/user\/{id}\/roles', function ($id) {\n$user = User::with('roles')->find($id);\nreturn response()->json(['status' => 1, 'data' => $user->roles]);\n})->middleware(SimplifyPivotMiddleware::class);<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u7ed3\u8bba<\/p>\n
Pivot \u662f Laravel \u5904\u7406\u591a\u5bf9\u591a\u5173\u7cfb\u7684\u4e00\u79cd\u5f88\u597d\u7684\u65b9\u5f0f\u3002\u4f46\u662f\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u53bb\u6389 Pivot\uff0c\u5e76\u624b\u52a8\u521b\u5efa\u4e2d\u95f4\u8868\uff0c\u6216\u4f7f\u7528\u4e2d\u95f4\u4ef6\u6765\u5904\u7406\u591a\u5bf9\u591a\u5173\u7cfb\u3002\u8fd9\u6837\u53ef\u4ee5\u63d0\u4f9b\u66f4\u5927\u7684\u7075\u6d3b\u6027\u548c\u63a7\u5236\u80fd\u529b\uff0c\u4f46\u9700\u8981\u4ed8\u51fa\u66f4\u591a\u7684\u7f16\u7801\u548c\u7ef4\u62a4\u6210\u672c\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662flaravel \u53bb\u6389povit\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\u4e00\u6b3e\u6d41\u884c\u7684 php web \u6846\u67b6\uff0c\u63d0\u4f9b\u4e86\u4e00\u4e9b\u975e\u5e38\u65b9\u4fbf\u7684\u529f\u80fd\u548c\u5de5\u5177\uff0c\u4f7f\u5f97 web \u5f00\u53d1\u53d8\u5f97\u66f4\u52a0\u7b80\u5355\u548c\u5feb\u901f\u3002\u5176\u4e2d\uff0cpivot \u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u529f\u80fd\uff0c\u7528\u4e8e\u5904\u7406\u591a\u5bf9\u591a\u5173\u7cfb\u3002\u4f46\u662f\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u53bb\u6389 pivot\u3002 \u4e3a\u4ec0\u4e48\u8981\u53bb\u6389 Pivot\uff1f \u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u6709\u65f6\u5019\u51fa\u73b0\u4e86 Pivot \u7684\u9650\u5236\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u5bf9\u591a\u5bf9\u591a\u5173\u7cfb\u8fdb\u884c\u66f4\u591a\u7684\u5b9a\u5236\u548c\u63a7\u5236\u3002\u6b64\u65f6\uff0c\u53bb\u6389 Pivot \u53ef\u4ee5\u63d0\u4f9b\u66f4\u5927\u7684\u7075\u6d3b\u6027\u3002\u4e0b\u9762\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u60c5\u51b5\uff1a \u5b9a\u5236\u5173\u7cfb\u8868\u7684\u5b57\u6bb5\u540d\u79f0Pivot \u4f1a\u81ea\u52a8\u751f\u6210\u4e00\u4e2a\u4e2d\u95f4\u8868\uff0c\u5176\u4e2d\u5305\u542b\u4e24\u4e2a\u5916\u952e\u548c\u4e00\u4e2a\u65f6\u95f4\u6233\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u5b9a\u5236\u66f4\u591a\u7684\u5b57\u6bb5\uff0c\u6bd4\u5982\u6dfb\u52a0\u4e00\u4e2a\u72b6\u6001\u5b57\u6bb5\u3002\u8fd9\u65f6\u5019\uff0c\u53bb\u6389 Pivot\uff0c\u6211\u4eec\u53ef\u4ee5\u624b\u52a8\u521b\u5efa\u4e00\u4e2a\u4e2d\u95f4\u8868\uff0c\u5b9a\u5236\u5b57\u6bb5\u540d\u79f0\u548c\u7c7b\u578b\u3002 \u63a7\u5236\u5173\u7cfb\u8868\u7684\u521b\u5efa\u548c\u66f4\u65b0\u5f53\u6211\u4eec\u4f7f\u7528 Laravel \u7684 Pivot \u529f\u80fd\u65f6\uff0c\u5982\u679c\u5173\u7cfb\u8868\u4e0d\u5b58\u5728\uff0c\u6846\u67b6\u4f1a\u81ea\u52a8\u521b\u5efa\u3002\u4f46\u662f\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u624b\u52a8\u521b\u5efa\u8fd9\u4e2a\u8868\uff0c\u5e76\u5728\u66f4\u65b0\u5173\u7cfb\u65f6\u8fdb\u884c\u66f4\u591a\u7684\u63a7\u5236\u3002\u53bb\u6389 Pivot \u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u624b\u52a8\u7f16\u5199 SQL \u8bed\u53e5\uff0c\u81ea\u7531\u63a7\u5236\u5173\u7cfb\u8868\u7684\u521b\u5efa\u548c\u66f4\u65b0\u3002 \u5904\u7406\u590d\u6742\u7684\u591a\u5bf9\u591a\u5173\u7cfbLaravel \u7684 Pivot \u529f\u80fd\u901a\u5e38\u9002\u7528\u4e8e\u7b80\u5355\u7684\u591a\u5bf9\u591a\u5173\u7cfb\u3002\u4f46\u662f\uff0c\u5728\u4e00\u4e9b\u590d\u6742\u7684\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u66f4\u591a\u7684\u5b9a\u5236\u548c\u63a7\u5236\u3002\u6bd4\u5982\uff0c\u6211\u4eec\u9700\u8981\u5904\u7406\u591a\u91cd\u8868\u683c\u4e4b\u95f4\u7684\u591a\u5bf9\u591a\u5173\u7cfb\uff0c\u6216\u8005\u9700\u8981\u5728\u5173\u7cfb\u8868\u4e2d\u6dfb\u52a0\u66f4\u591a\u7684\u5b57\u6bb5\u8fdb\u884c\u5904\u7406\u3002\u8fd9\u65f6\u5019\uff0c\u53bb\u6389 Pivot\uff0c\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u9700\u8981\u8fdb\u884c\u66f4\u591a\u7684\u6784\u5efa\u548c\u63a7\u5236\u3002 \u5982\u4f55\u53bb\u6389 Pivot\uff1f \u53bb\u6389 Pivot \u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u4e0b\u9762\u4ecb\u7ecd\u4e24\u79cd\u5e38\u89c1\u7684\u65b9\u5f0f\u3002 \u65b9\u6cd5\u4e00\uff1a\u624b\u52a8\u521b\u5efa\u4e2d\u95f4\u8868 \u9996\u5148\uff0c\u5728\u6570\u636e\u5e93\u4e2d\u521b\u5efa\u4e00\u4e2a\u4e2d\u95f4\u8868\u3002 CREATE TABLE `user_role` ( `id` int(11) unsigned NOT NULL AUTO_INCREMENT, `user_id` int(11) unsigned NOT NULL, […]<\/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-22598","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22598","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=22598"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22598\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=22598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=22598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=22598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}