{"id":23188,"date":"2024-11-21T12:33:45","date_gmt":"2024-11-21T04:33:45","guid":{"rendered":"https:\/\/fwq.ai\/blog\/23188\/"},"modified":"2024-11-21T12:33:45","modified_gmt":"2024-11-21T04:33:45","slug":"thinkphp%e7%9a%84%e6%9f%a5%e8%af%a2%e5%85%b3%e8%81%94%e5%8a%9f%e8%83%bd%e6%80%8e%e4%b9%88%e7%94%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/23188\/","title":{"rendered":"ThinkPHP\u7684\u67e5\u8be2\u5173\u8054\u529f\u80fd\u600e\u4e48\u7528"},"content":{"rendered":"<\/p>\n

\u4e00. \u6a21\u578b\u5173\u8054<\/strong><\/p>\n

1.1\u4e00\u5bf9\u4e00\u5173\u8054<\/strong><\/p>\n

\u4e00\u5bf9\u4e00\u5173\u8054\u5373\u4e24\u4e2a\u6570\u636e\u8868\u4e2d\u5404\u81ea\u53ea\u6709\u4e00\u6761\u8bb0\u5f55\uff0c\u8fd9\u65f6\u4f7f\u7528hasOne()\u548cbelongTo()\u51fd\u6570\u8fdb\u884c\u5173\u8054\u3002\u5047\u5b9a\u6211\u4eec\u62e5\u6709\u4e24\u4e2a\u6570\u636e\u8868\uff0c\u4e00\u4e2a\u79f0\u4e3a\u7528\u6237\u8868(user table)\uff0c\u53e6\u4e00\u4e2a\u5219\u4e3a\u7528\u6237\u4fe1\u606f\u8868(userinfo table)\uff0c\u5b83\u4eec\u5404\u81ea\u7684\u7ed3\u6784\u5982\u4e0b\uff1a<\/p>\n

user:\nid\nname\n\nuserinfo:\nid\nuser_id\nage<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4e0a\u9762\u4e24\u4e2a\u8868\u662f\u901a\u8fc7\u5b57\u6bb5user_id\u8fdb\u884c\u5173\u8054\u7684\u3002\u73b0\u5728\u6211\u4eec\u9700\u8981\u5728user\u8868\u4e2d\u67e5\u8be2\u7528\u6237\u4fe1\u606f\u548c\u5bf9\u5e94\u7684\u5e74\u9f84\uff0c\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
\u5728User\u6a21\u578b\u4e2d\u5b9a\u4e49\u4e00\u4e2auserinfo()\u65b9\u6cd5\uff0c\u65b9\u6cd5\u540d\u968f\u610f\u3002<\/p>\n
\/\/User\u6a21\u578b\n\n<?php class User extends Model{\npublic function userinfo(){\nreturn $this -> hasOne('UserInfo', 'user_id');\n}\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5728User\u6a21\u578b\u4e2d\u5b9a\u4e49\u4e00\u4e2aage()\u65b9\u6cd5\uff0c\u8fd9\u4e2a\u65b9\u6cd5\u5176\u5b9e\u662f\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5c5e\u6027\uff0c\u5b83\u8bbf\u95eeuserinfo\u6a21\u578b\u7684age\u5b57\u6bb5\u3002<\/p>\n
\/\/User\u6a21\u578b\n<?php class User extends Model{\nprotected $readonly = ['age'];\n\npublic function userinfo(){\nreturn $this -> hasOne('UserInfo', 'user_id');\n}\n\npublic function getAgeAttr($value, $data){\nif(isset($data['userinfo'])){\nreturn $data['userinfo']['age'];\n}\nreturn '';\n}\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5b8c\u6210\u4ee5\u4e0a\u4ee3\u7801\u540e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u4f7f\u7528find()\u65b9\u6cd5\u67e5\u8be2\u5230\u6211\u4eec\u60f3\u8981\u7684\u7528\u6237\u4ee5\u53ca\u5176\u5e74\u9f84\uff1a<\/p>\n
\/\/\u67e5\u8be2user\u8868\u4e2did\u4e3a1\u7684\u7528\u6237\n\n$user = User::get(1);\necho $user -&gt; name;\necho $user -&gt; age;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6ce8\u610f\uff1a\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86$readonly\u5c5e\u6027\uff0c$readonly\u5c5e\u6027\u662fThinkPHP\u63d0\u4f9b\u7684\u5c5e\u6027\uff0c\u4ed6\u80fd\u591f\u4fdd\u62a4\u4e00\u4e9b\u5c5e\u6027\u4e0d\u88ab\u5199\u5165\u6570\u636e\u5e93\u3002\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5c06age\u5c5e\u6027\u8bbe\u5b9a\u4e3a\u53ea\u8bfb\u5c5e\u6027\uff0c\u8fd9\u6837\u5f53$user -> age\u88ab\u8bbf\u95ee\u7684\u65f6\u5019\uff0c\u5c31\u4f1a\u81ea\u52a8\u8c03\u7528getAgeAttr\u65b9\u6cd5\u53bb\u67e5\u8be2userinfo\u6a21\u578b\u91cc\u9762\u7684age\u5b57\u6bb5\u3002<\/p>\n
1.2 \u4e00\u5bf9\u591a\u5173\u8054<\/strong><\/p>\n
\u4e00\u5bf9\u591a\u5173\u8054\u6307\u7684\u662f\u4e24\u4e2a\u6570\u636e\u8868\u4e2d\u4e00\u4e2a\u6709\u591a\u6761\u8bb0\u5f55\uff0c\u4e00\u4e2a\u53ea\u6709\u4e00\u6761\u8bb0\u5f55\u3002\u5982\u4e0b\u9762\u7684\u4f8b\u5b50\uff1a<\/p>\n
order:\nid\nuser_id\norder_no\n\norder_goods:\nid\norder_id\nname\nprice<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4e0a\u9762\u4e24\u4e2a\u8868\u662f\u901a\u8fc7\u5b57\u6bb5order_id\u5173\u8054\u7684\u3002\u6211\u4eec\u73b0\u5728\u8981\u67e5\u627euser\u8868\u4e2d\u7528\u6237\u7684\u8ba2\u5355\u4fe1\u606f\u4ee5\u53ca\u5bf9\u5e94\u7684\u5546\u54c1\u4fe1\u606f\uff0c\u5177\u4f53\u64cd\u4f5c\u5982\u4e0b\uff1a<\/p>\n
\u5728User\u6a21\u578b\u4e2d\u5b9a\u4e49\u4e00\u4e2aorders()\u65b9\u6cd5\uff0c\u8fd9\u4e2a\u65b9\u6cd5\u8868\u793a\u4e00\u4e2a\u7528\u6237\u6709\u591a\u4e2a\u8ba2\u5355\u3002<\/p>\n
\/\/User\u6a21\u578b\n\n<?php class User extends Model{\npublic function orders(){\nreturn $this -> hasMany('Order', 'user_id');\n}\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5728Order\u6a21\u578b\u4e2d\u5b9a\u4e49\u4e00\u4e2agoods()\u65b9\u6cd5\uff0c\u8fd9\u4e2a\u65b9\u6cd5\u8868\u793a\u4e00\u4e2a\u8ba2\u5355\u6709\u591a\u4e2a\u5546\u54c1\u3002<\/p>\n
\/\/Order\u6a21\u578b\n<?php class Order extends Model{\npublic function goods(){\nreturn $this -> hasMany('OrderGoods', 'order_id');\n}\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5b9a\u4e49\u597d\u4ee5\u4e0a\u7684\u5173\u8054\u540e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u4f7f\u7528find()\u65b9\u6cd5\u67e5\u8be2\u51fa\u7528\u6237\u7684\u8ba2\u5355\u4ee5\u53ca\u6bcf\u4e2a\u8ba2\u5355\u5bf9\u5e94\u7684\u5546\u54c1\uff1a<\/p>\n
\/\/\u67e5\u8be2user\u8868\u4e2did\u4e3a1\u7684\u7528\u6237\u7684\u8ba2\u5355\u4fe1\u606f\u548c\u8ba2\u5355\u7684\u5546\u54c1\u4fe1\u606f\n\n$user = User::get(1, 'orders.goods');\nvar_dump($user -&gt; orders[0] -&gt; goods);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6700\u540e\u4e00\u4e2a\u53c2\u6570\uff08’orders.goods’\uff09\u8868\u793a\u540c\u65f6\u67e5\u8be2\u5b83\u6240\u6709\u7684Order\u548cOrder\u5173\u8054\u7684Goods\u4fe1\u606f\u3002<\/p>\n
\u4e8c. \u67e5\u8be2\u5173\u8054<\/strong><\/p>\n
2.1 \u4f7f\u7528\u5173\u8054\u67e5\u8be2<\/strong><\/p>\n
\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8bbf\u95ee\u6a21\u578b\u5c42\u4e2d\u5b9a\u4e49\u7684\u5173\u8054\u5c5e\u6027\uff0c\u5b9e\u73b0\u5173\u8054\u67e5\u8be2\uff0c\u800c\u65e0\u9700\u5728\u6a21\u578b\u5c42\u7ea7\u522b\u4e0a\u5b9a\u4e49\u5173\u8054\u5173\u7cfb\u3002\u5982\uff0c\u6211\u4eec\u73b0\u5728\u60f3\u67e5\u8be2\u4e00\u4e2a\u7528\u6237\u4ee5\u53ca\u5b83\u7684\u8ba2\u5355\u4fe1\u606f\uff1a<\/p>\n
$user = User::get(1);\n$orders = $user -&gt; orders;\necho $user -&gt; name;\nforeach($orders as $order){\necho $order -&gt; order_no . \"\n\";\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2.2 \u5ef6\u8fdf\u5173\u8054<\/strong><\/p>\n
\u5982\u679c\u6211\u4eec\u4e0d\u60f3\u5728\u67e5\u8be2\u4e00\u4e2a\u6a21\u578b\u7684\u65f6\u5019\u81ea\u52a8\u67e5\u8be2\u5b83\u7684\u5173\u8054\u5173\u7cfb\uff0c\u53ef\u4ee5\u4f7f\u7528\u5ef6\u8fdf\u5173\u8054\u6765\u5b9e\u73b0\u6b64\u9700\u6c42\u3002\u5982\uff1a<\/p>\n
$user = User::with('orders')-&gt;get(1);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u8bbe\u7f6e$user\u53d8\u91cf\u65f6\u5728with()\u51fd\u6570\u4e2d\u5b9a\u4e49\u4e86\u6240\u8981\u83b7\u53d6\u7684\u5173\u8054\u5173\u7cfb\uff0c\u8fd9\u65f6\u67e5\u8be2\u8bed\u53e5\u4e0d\u4f1a\u9ed8\u8ba4\u81ea\u52a8\u67e5\u8be2\u5173\u8054\u5173\u7cfb\uff0c\u800c\u662f\u7b49\u5f85\u6211\u4eec\u4f7f\u7528\u5173\u8054\u5173\u7cfb\u65f6\u624d\u4f1a\u67e5\u8be2\u3002<\/p>\n
2.3 \u5305\u542b\u5173\u8054<\/strong><\/p>\n
\u9664\u4e86\u4e0a\u9762\u7684\u5ef6\u8fdf\u5173\u8054\u5916\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6ewith\u65b9\u6cd5\u540e\u7684true\u53c2\u6570\u81ea\u52a8\u5305\u542b\u6240\u6709\u5173\u8054\u5173\u7cfb\u6765\u5b9e\u73b0\u6211\u4eec\u7684\u67e5\u8be2\u9700\u6c42\u3002\u5982\uff1a<\/p>\n
$user = User::with('orders')-&gt;find(1, true);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5728find()\u65b9\u6cd5\u4e2d\u589e\u52a0\u4e86\u4e00\u4e2atrue\u53c2\u6570\uff0c\u8fd9\u4e2a\u53c2\u6570\u8868\u793a\u6211\u4eec\u8981\u5305\u542buser\u6a21\u578b\u7684\u6240\u6709\u5173\u8054\u5173\u7cfb\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662fThinkPHP\u7684\u67e5\u8be2\u5173\u8054\u529f\u80fd\u600e\u4e48\u7528\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":"
\u4e00. \u6a21\u578b\u5173\u8054 1.1\u4e00\u5bf9\u4e00\u5173\u8054 \u4e00\u5bf9\u4e00\u5173\u8054\u5373\u4e24\u4e2a\u6570\u636e\u8868\u4e2d\u5404\u81ea\u53ea\u6709\u4e00\u6761\u8bb0\u5f55\uff0c\u8fd9\u65f6\u4f7f\u7528hasOne()\u548cbelongTo()\u51fd\u6570\u8fdb\u884c\u5173\u8054\u3002\u5047\u5b9a\u6211\u4eec\u62e5\u6709\u4e24\u4e2a\u6570\u636e\u8868\uff0c\u4e00\u4e2a\u79f0\u4e3a\u7528\u6237\u8868(user table)\uff0c\u53e6\u4e00\u4e2a\u5219\u4e3a\u7528\u6237\u4fe1\u606f\u8868(userinfo table)\uff0c\u5b83\u4eec\u5404\u81ea\u7684\u7ed3\u6784\u5982\u4e0b\uff1a user: id name userinfo: id user_id age \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u9762\u4e24\u4e2a\u8868\u662f\u901a\u8fc7\u5b57\u6bb5user_id\u8fdb\u884c\u5173\u8054\u7684\u3002\u73b0\u5728\u6211\u4eec\u9700\u8981\u5728user\u8868\u4e2d\u67e5\u8be2\u7528\u6237\u4fe1\u606f\u548c\u5bf9\u5e94\u7684\u5e74\u9f84\uff0c\u6b65\u9aa4\u5982\u4e0b\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u5728User\u6a21\u578b\u4e2d\u5b9a\u4e49\u4e00\u4e2auserinfo()\u65b9\u6cd5\uff0c\u65b9\u6cd5\u540d\u968f\u610f\u3002 \/\/User\u6a21\u578b <?php class User extends Model{ public function userinfo(){ return $this -> hasOne(‘UserInfo’, ‘user_id’); } } \u767b\u5f55\u540e\u590d\u5236 \u5728User\u6a21\u578b\u4e2d\u5b9a\u4e49\u4e00\u4e2aage()\u65b9\u6cd5\uff0c\u8fd9\u4e2a\u65b9\u6cd5\u5176\u5b9e\u662f\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5c5e\u6027\uff0c\u5b83\u8bbf\u95eeuserinfo\u6a21\u578b\u7684age\u5b57\u6bb5\u3002 \/\/User\u6a21\u578b <?php class User extends Model{ protected $readonly = ['age']; public function userinfo(){ return $this -> hasOne(‘UserInfo’, ‘user_id’); } public function getAgeAttr($value, $data){ if(isset($data[‘userinfo’])){ return $data[‘userinfo’][‘age’]; } return ”; […]<\/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-23188","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/23188","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=23188"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/23188\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=23188"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=23188"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=23188"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}