{"id":22466,"date":"2024-11-21T08:02:58","date_gmt":"2024-11-21T00:02:58","guid":{"rendered":"https:\/\/fwq.ai\/blog\/22466\/"},"modified":"2024-11-21T08:02:58","modified_gmt":"2024-11-21T00:02:58","slug":"laravel%e6%80%8e%e4%b9%88%e8%bf%9e%e8%a1%a8%e6%9f%a5%e8%af%a2%e5%90%88%e5%b9%b6","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/22466\/","title":{"rendered":"laravel\u600e\u4e48\u8fde\u8868\u67e5\u8be2\u5408\u5e76"},"content":{"rendered":"

\u5728 laravel \u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u5bf9\u591a\u4e2a\u8868\u8fdb\u884c\u8fde\u8868\u67e5\u8be2\uff0c\u4ee5\u4fbf\u83b7\u53d6\u66f4\u4e3a\u5b8c\u6574\u7684\u6570\u636e\u4fe1\u606f\uff0c\u8fd9\u4e5f\u662f laravel \u6570\u636e\u5e93\u64cd\u4f5c\u7684\u6838\u5fc3\u529f\u80fd\u4e4b\u4e00\u3002\u4f46\u5f53\u9700\u8981\u5bf9\u591a\u4e2a\u8868\u8fdb\u884c\u8fde\u8868\u67e5\u8be2\u65f6\uff0c\u5982\u4f55\u8fdb\u884c\u8868\u5173\u8054\u6210\u4e3a\u4e86\u4e00\u4e2a\u91cd\u8981\u7684\u95ee\u9898\u3002<\/p>\n

\u9488\u5bf9\u8fd9\u4e00\u95ee\u9898\uff0c Laravel \u63d0\u4f9b\u4e86\u591a\u79cd\u4e0d\u540c\u7684\u8fde\u8868\u67e5\u8be2\u65b9\u5f0f\uff0c\u672c\u6587\u5c06\u7ed3\u5408\u5b9e\u4f8b\uff0c\u4ecb\u7ecd\u5176\u4e2d\u4e00\u79cd\u6bd4\u8f83\u5e38\u7528\u7684\u8fde\u8868\u67e5\u8be2\u65b9\u5f0f\uff1a\u5408\u5e76\u8fde\u8868\u67e5\u8be2\u3002<\/p>\n

\u4e00\u3001\u4ec0\u4e48\u662f\u5408\u5e76\u8fde\u8868\u67e5\u8be2<\/p>\n

\u5728 Laravel \u4e2d\uff0c\u5408\u5e76\u8fde\u8868\u67e5\u8be2\u4f7f\u7528\u7684\u662f Eloquent ORM \u63d0\u4f9b\u7684 with() \u65b9\u6cd5\u3002\u8fd9\u4e2a\u65b9\u6cd5\u7528\u4e8e\u5728\u67e5\u8be2\u4e00\u4e2a\u6a21\u578b\u65f6\uff0c\u9884\u5148\u52a0\u8f7d\u4e0e\u8be5\u6a21\u578b\u76f8\u5173\u8054\u7684\u5176\u4ed6\u6a21\u578b\u6570\u636e\uff0c\u4ece\u800c\u907f\u514d\u9891\u7e41\u67e5\u8be2\u6570\u636e\u5e93\u9020\u6210\u7684\u6027\u80fd\u95ee\u9898\u3002<\/p>\n

\u4f8b\u5982\uff0c\u73b0\u5728\u6709\u4e24\u4e2a\u6570\u636e\u8868\u5206\u522b\u4e3a posts \u548c comments\uff0c\u5176\u4e2d posts \u8868\u5b58\u50a8\u6587\u7ae0\u7684\u57fa\u672c\u4fe1\u606f\uff0ccomments \u8868\u5b58\u50a8\u6587\u7ae0\u7684\u8bc4\u8bba\u4fe1\u606f\uff0c\u4e24\u4e2a\u8868\u7684\u5173\u7cfb\u662f\u4e00\u5bf9\u591a\u7684\u5173\u7cfb\uff0c\u4e5f\u5c31\u662f\u4e00\u4e2a\u6587\u7ae0\u5bf9\u5e94\u591a\u4e2a\u8bc4\u8bba\u3002<\/p>\n

\u9996\u5148\u6211\u4eec\u9700\u8981\u5b9a\u4e49 Post \u548c Comment \u4e24\u4e2a\u6a21\u578b\uff1a<\/p>\n

\/\/ Post \u6a21\u578b\u4e2d\u5b9a\u4e49\u4e0e comments \u8868\u7684\u4e00\u5bf9\u591a\u5173\u7cfb\nclass Post extends Model\n{\n    public function comments()\n    {\n        return $this->hasMany(Comment::class);\n    }\n}\n\n\/\/ Comment \u6a21\u578b\u4e2d\u5b9a\u4e49\u4e0e posts \u8868\u7684\u5173\u8054\u5173\u7cfb\nclass Comment extends Model\n{\n    public function post()\n    {\n        return $this->belongsTo(Post::class);\n    }\n}<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e0b\u9762\u7684\u65b9\u6cd5\u4f7f\u7528 Laravel Eloquent ORM \u8fdb\u884c\u67e5\u8be2\uff1a<\/p>\n
$posts = Post::with('comments')->get();<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c with(‘comments’) \u8868\u793a\u52a0\u8f7d\u4e0e\u6587\u7ae0\u76f8\u5173\u8054\u7684\u8bc4\u8bba\u6570\u636e\u3002\u7531\u4e8e comments \u4e0e posts \u662f\u4e00\u5bf9\u591a\u7684\u5173\u7cfb\uff0c\u56e0\u6b64\u4f7f\u7528 hasMany() \u65b9\u6cd5\u5b9a\u4e49\u4e86 posts \u4e0e comments \u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u4f7f\u7528 belongsTo() \u65b9\u6cd5\u5b9a\u4e49\u4e86 comments \u4e0e posts \u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/p>\n
\u6267\u884c\u4ee5\u4e0a\u4ee3\u7801\u540e\uff0c\u6211\u4eec\u83b7\u5f97\u7684\u662f\u4e00\u4e2a\u5305\u542b\u6240\u6709\u6587\u7ae0\u53ca\u5176\u8bc4\u8bba\u4fe1\u606f\u7684\u96c6\u5408\u3002\u5176\u4e2d\u6bcf\u4e2a\u6587\u7ae0\u7684 comments \u5c5e\u6027\u662f\u4e00\u4e2a\u5305\u542b\u5176\u5bf9\u5e94\u8bc4\u8bba\u4fe1\u606f\u7684\u96c6\u5408\u3002<\/p>\n
\u4e8c\u3001\u5408\u5e76\u8fde\u8868\u67e5\u8be2\u7684\u4f18\u52bf<\/p>\n
\u4e0e\u5176\u4ed6\u8fde\u8868\u67e5\u8be2\u65b9\u5f0f\u76f8\u6bd4\uff0c\u5408\u5e76\u8fde\u8868\u67e5\u8be2\u6709\u4ee5\u4e0b\u4f18\u52bf\uff1a<\/p>\n
1\u3001\u63d0\u5347\u67e5\u8be2\u6548\u7387\uff1a\u5408\u5e76\u8fde\u8868\u67e5\u8be2\u53ef\u4ee5\u907f\u514d\u591a\u6b21\u67e5\u8be2\u6570\u636e\u5e93\u9020\u6210\u7684\u6027\u80fd\u95ee\u9898\uff0c\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u3002<\/p>\n
2\u3001\u6570\u636e\u4e00\u81f4\u6027\uff1a\u5f53\u4f7f\u7528\u591a\u6b21\u67e5\u8be2\u6570\u636e\u5e93\u65f6\uff0c\u6570\u636e\u7684\u4e00\u81f4\u6027\u53ef\u80fd\u4f1a\u53d7\u5230\u5f71\u54cd\uff0c\u800c\u4f7f\u7528\u5408\u5e76\u8fde\u8868\u67e5\u8be2\u53ef\u4ee5\u4fdd\u8bc1\u6570\u636e\u7684\u4e00\u81f4\u6027\u3002<\/p>\n
3\u3001\u8282\u7701\u4ee3\u7801\u91cf\uff1a\u4f7f\u7528 Eloquent ORM \u7684 with() \u65b9\u6cd5\u53ef\u4ee5\u5728\u4e00\u884c\u4ee3\u7801\u4e2d\u5b8c\u6210\u591a\u4e2a\u6570\u636e\u8868\u7684\u67e5\u8be2\uff0c\u8282\u7701\u4ee3\u7801\u91cf\u3002<\/p>\n
\u4e09\u3001\u5408\u5e76\u8fde\u8868\u67e5\u8be2\u7684\u4f7f\u7528\u573a\u666f<\/p>\n
\u5408\u5e76\u8fde\u8868\u67e5\u8be2\u901a\u5e38\u9002\u7528\u4e8e\u4ee5\u4e0b\u573a\u666f\uff1a<\/p>\n
1\u3001\u4e00\u4e2a\u6a21\u578b\u9700\u8981\u52a0\u8f7d\u591a\u4e2a\u76f8\u5173\u8054\u7684\u6a21\u578b\u6570\u636e\u3002<\/p>\n
2\u3001\u591a\u4e2a\u6a21\u578b\u4e4b\u95f4\u7684\u6570\u636e\u5173\u7cfb\u6bd4\u8f83\u590d\u6742\uff0c\u4f7f\u7528\u591a\u6b21\u67e5\u8be2\u4f1a\u964d\u4f4e\u4ee3\u7801\u53ef\u8bfb\u6027\u3002<\/p>\n
3\u3001\u9700\u8981\u5bf9\u591a\u4e2a\u76f8\u5173\u8054\u7684\u6570\u636e\u8868\u8fdb\u884c\u7b5b\u9009\u3001\u6392\u5e8f\u3001\u5206\u9875\u7b49\u64cd\u4f5c\u3002<\/p>\n
\u56db\u3001\u5408\u5e76\u8fde\u8868\u67e5\u8be2\u7684\u6ce8\u610f\u4e8b\u9879<\/p>\n
\u5728\u4f7f\u7528\u5408\u5e76\u8fde\u8868\u67e5\u8be2\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u95ee\u9898\uff1a<\/p>\n
1\u3001\u67e5\u8be2\u7684\u6570\u636e\u8868\u4e2d\u5fc5\u987b\u5b58\u5728\u5916\u952e\u5173\u8054\uff0c\u5426\u5219\u65e0\u6cd5\u8fdb\u884c\u67e5\u8be2\u3002<\/p>\n
2\u3001\u4f7f\u7528 with() \u65b9\u6cd5\u65f6\uff0c\u53ef\u4ee5\u4e00\u6b21\u52a0\u8f7d\u591a\u4e2a\u5173\u8054\u6a21\u578b\uff0c\u4f8b\u5982\uff1a<\/p>\n
$posts = Post::with('comments', 'tags')->get();<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
3\u3001\u9700\u8981\u6ce8\u610f\u907f\u514d\u4f7f\u7528\u5d4c\u5957\u67e5\u8be2\u8bed\u53e5\uff0c\u8fd9\u53ef\u80fd\u4f1a\u9020\u6210\u91cd\u590d\u67e5\u8be2\u7b49\u95ee\u9898\u3002<\/p>\n
4\u3001\u67e5\u8be2\u7684\u6570\u636e\u91cf\u8f83\u5927\u65f6\uff0c\u9700\u6ce8\u610f\u67e5\u8be2\u6548\u7387\u548c\u5185\u5b58\u5360\u7528\u60c5\u51b5\u3002<\/p>\n
\u4e94\u3001\u603b\u7ed3<\/p>\n
\u5728 Laravel \u4e2d\uff0c\u8fde\u8868\u67e5\u8be2\u662f\u4e00\u9879\u5f88\u91cd\u8981\u7684\u6570\u636e\u5e93\u64cd\u4f5c\uff0c\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u4fbf\u6377\u7684\u6570\u636e\u5904\u7406\u65b9\u5f0f\u3002\u800c\u5408\u5e76\u8fde\u8868\u67e5\u8be2\u4f5c\u4e3a\u5176\u4e2d\u4e00\u79cd\u6bd4\u8f83\u5e38\u89c1\u7684\u65b9\u5f0f\uff0c\u4e0d\u4ec5\u80fd\u591f\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\uff0c\u8fd8\u80fd\u591f\u4fdd\u8bc1\u6570\u636e\u4e00\u81f4\u6027\uff0c\u540c\u65f6\u4ee3\u7801\u53ef\u8bfb\u6027\u4e5f\u66f4\u9ad8\u3002\u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\uff0c\u76f8\u4fe1\u8bfb\u8005\u5df2\u7ecf\u5bf9 Laravel \u4e2d\u8fde\u8868\u67e5\u8be2\u7684\u4f7f\u7528\u65b9\u6cd5\u6709\u4e86\u4e00\u5b9a\u7684\u4e86\u89e3\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662flaravel\u600e\u4e48\u8fde\u8868\u67e5\u8be2\u5408\u5e76\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":"
\u5728 laravel \u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u5bf9\u591a\u4e2a\u8868\u8fdb\u884c\u8fde\u8868\u67e5\u8be2\uff0c\u4ee5\u4fbf\u83b7\u53d6\u66f4\u4e3a\u5b8c\u6574\u7684\u6570\u636e\u4fe1\u606f\uff0c\u8fd9\u4e5f\u662f laravel \u6570\u636e\u5e93\u64cd\u4f5c\u7684\u6838\u5fc3\u529f\u80fd\u4e4b\u4e00\u3002\u4f46\u5f53\u9700\u8981\u5bf9\u591a\u4e2a\u8868\u8fdb\u884c\u8fde\u8868\u67e5\u8be2\u65f6\uff0c\u5982\u4f55\u8fdb\u884c\u8868\u5173\u8054\u6210\u4e3a\u4e86\u4e00\u4e2a\u91cd\u8981\u7684\u95ee\u9898\u3002 \u9488\u5bf9\u8fd9\u4e00\u95ee\u9898\uff0c Laravel \u63d0\u4f9b\u4e86\u591a\u79cd\u4e0d\u540c\u7684\u8fde\u8868\u67e5\u8be2\u65b9\u5f0f\uff0c\u672c\u6587\u5c06\u7ed3\u5408\u5b9e\u4f8b\uff0c\u4ecb\u7ecd\u5176\u4e2d\u4e00\u79cd\u6bd4\u8f83\u5e38\u7528\u7684\u8fde\u8868\u67e5\u8be2\u65b9\u5f0f\uff1a\u5408\u5e76\u8fde\u8868\u67e5\u8be2\u3002 \u4e00\u3001\u4ec0\u4e48\u662f\u5408\u5e76\u8fde\u8868\u67e5\u8be2 \u5728 Laravel \u4e2d\uff0c\u5408\u5e76\u8fde\u8868\u67e5\u8be2\u4f7f\u7528\u7684\u662f Eloquent ORM \u63d0\u4f9b\u7684 with() \u65b9\u6cd5\u3002\u8fd9\u4e2a\u65b9\u6cd5\u7528\u4e8e\u5728\u67e5\u8be2\u4e00\u4e2a\u6a21\u578b\u65f6\uff0c\u9884\u5148\u52a0\u8f7d\u4e0e\u8be5\u6a21\u578b\u76f8\u5173\u8054\u7684\u5176\u4ed6\u6a21\u578b\u6570\u636e\uff0c\u4ece\u800c\u907f\u514d\u9891\u7e41\u67e5\u8be2\u6570\u636e\u5e93\u9020\u6210\u7684\u6027\u80fd\u95ee\u9898\u3002 \u4f8b\u5982\uff0c\u73b0\u5728\u6709\u4e24\u4e2a\u6570\u636e\u8868\u5206\u522b\u4e3a posts \u548c comments\uff0c\u5176\u4e2d posts \u8868\u5b58\u50a8\u6587\u7ae0\u7684\u57fa\u672c\u4fe1\u606f\uff0ccomments \u8868\u5b58\u50a8\u6587\u7ae0\u7684\u8bc4\u8bba\u4fe1\u606f\uff0c\u4e24\u4e2a\u8868\u7684\u5173\u7cfb\u662f\u4e00\u5bf9\u591a\u7684\u5173\u7cfb\uff0c\u4e5f\u5c31\u662f\u4e00\u4e2a\u6587\u7ae0\u5bf9\u5e94\u591a\u4e2a\u8bc4\u8bba\u3002 \u9996\u5148\u6211\u4eec\u9700\u8981\u5b9a\u4e49 Post \u548c Comment \u4e24\u4e2a\u6a21\u578b\uff1a \/\/ Post \u6a21\u578b\u4e2d\u5b9a\u4e49\u4e0e comments \u8868\u7684\u4e00\u5bf9\u591a\u5173\u7cfb class Post extends Model { public function comments() { return $this->hasMany(Comment::class); } } \/\/ Comment \u6a21\u578b\u4e2d\u5b9a\u4e49\u4e0e posts \u8868\u7684\u5173\u8054\u5173\u7cfb class Comment extends […]<\/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-22466","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22466","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=22466"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22466\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=22466"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=22466"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=22466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}