{"id":207364,"date":"2025-07-08T12:42:16","date_gmt":"2025-07-08T04:42:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207364\/"},"modified":"2025-07-08T12:42:16","modified_gmt":"2025-07-08T04:42:16","slug":"gorm-%e5%85%b3%e8%81%94%e5%88%a0%e9%99%a4%e4%b8%8d%e4%bc%9a%e5%88%a0%e9%99%a4%e8%a1%8c%ef%bc%8c%e8%80%8c%e6%98%af%e6%9b%b4%e6%96%b0%e8%a1%8c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207364\/","title":{"rendered":"Gorm \u5173\u8054\u5220\u9664\u4e0d\u4f1a\u5220\u9664\u884c\uff0c\u800c\u662f\u66f4\u65b0\u884c"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> Gorm \u5173\u8054\u5220\u9664\u4e0d\u4f1a\u5220\u9664\u884c\uff0c\u800c\u662f\u66f4\u65b0\u884c<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-21 22:54:35<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u4eb2\u7231\u7684\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5982\u679c\u4f60\u70b9\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0\uff0c\u8bf4\u660e\u4f60\u5bf9\u300aGorm \u5173\u8054\u5220\u9664\u4e0d\u4f1a\u5220\u9664\u884c\uff0c\u800c\u662f\u66f4\u65b0\u884c\u300b\u5f88\u611f\u5174\u8da3\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u7ed9\u5927\u5bb6\u8be6\u7ec6\u89e3\u6790\u4e00\u4e0b\uff0c\u4e3b\u8981\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u6240\u6709\u8ba4\u771f\u8bfb\u5b8c\u7684\u7ae5\u978b\u4eec\uff0c\u90fd\u6709\u5b9e\u8d28\u6027\u7684\u63d0\u9ad8\u3002<\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u4e00\u4e2a\u5ba2\u6237\u7aef\u6709\u5f88\u591a\u89d2\u8272\u3002\u6211\u60f3\u5728\u5220\u9664\u5ba2\u6237\u7aef\u540e\u5220\u9664\u6240\u6709\u89d2\u8272\u3002<\/p>\n

type client struct {\n        id                          string `gorm:\"primarykey\"`\n        createdat                   time.time\n        updatedat                   time.time\n        roles [] role\n    }\n    \n    type role struct {\n        id        uint `gorm:\"primarykey\"`\n        createdat time.time\n        updatedat time.time\n    \n        clientid string\n    }\n    \n    return db.transaction(func(tx *gorm.db) error {\n            err = db.model(&clienttoremove).association(\"roles\").delete(&clienttoremove.roles)\n            if err != nil {\n                return err\n            }\n    \n            err = db.delete(&clienttoremove).error\n            if err != nil {\n                return err\n            }\n    \n            return nil\n        })<\/pre>\n
\u6211\u5e0c\u671b\u5220\u9664\u89d2\u8272\u4e2d\u7684\u76f8\u5173\u884c\uff0c\u5b83\u4e0d\u4f1a\u6267\u884c\u5220\u9664\u67e5\u8be2\uff0c\u800c\u662f\u6267\u884c\u66f4\u65b0\u67e5\u8be2\u6765\u5220\u9664 client_id\u3002<\/p>\n
[210.834ms] [rows:1] UPDATE \"role\" SET \"client_id\"=NULL WHERE \"role\".\"client_id\" = 'xxxxxxxxxxx' AND \"role\".\"id\" = 9<\/pre>\n
\u5982\u4f55\u5b8c\u5168\u5220\u9664\u5173\u8054\u89d2\u8272\u8868\u4e2d\u7684\u884c\uff1f<\/p>\n
\u6570\u636e\u5e93\u662fpostgres<\/p>\n
 <\/p>\n
\u6b63\u786e\u7b54\u6848<\/h2>\n
 <\/p>\n
\u5982 \u4e2d\u6240\u8ff0\uff0c\u5220\u9664\u5173\u8054\u64cd\u4f5c\u53ea\u4f1a\u5220\u9664 client<\/code> \u548c tenantrole<\/code> \u4e4b\u95f4\u7684\u5f15\u7528\u3002\u5728\u60a8\u7684\u60c5\u51b5\u4e0b\uff0c\u5b83\u53ea\u662f\u66f4\u65b0\u4e86 tenantrole<\/code> \u8bb0\u5f55\u4ee5\u5c06 client_id<\/code> \u8bbe\u7f6e\u4e3a null\u3002<\/p>\n
\u5982\u679c\u60a8\u8fd8\u60f3\u5220\u9664\u5bf9\u8c61\uff0c\u53ef\u4ee5\u5c1d\u8bd5\u4f7f\u7528 select<\/code> \u8fdb\u884c\u5220\u9664\u64cd\u4f5c\u3002\u8bf7 \u8fd9\u4ec5\u5728\u4e3b\u952e\u4e0d\u4e3a\u96f6\u65f6\u6709\u6548\uff0c\u56e0\u6b64\u60a8\u7684\u67e5\u8be2\u53ef\u80fd\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
err = db.select(\"tenantroles\").delete(&client{id: clientid}).error<\/pre>\n
\u6216\u8005\u5982\u679c\u5df2\u7ecf\u586b\u5145\u4e86 id<\/code> \u5b57\u6bb5\uff0c\u5219\u4ec5\u4f7f\u7528 clienttoremove<\/code><\/p>\n
err = db.Select(\"TenantRoles\").Delete(&clientToRemove).Error<\/pre>\n
\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300aGorm \u5173\u8054\u5220\u9664\u4e0d\u4f1a\u5220\u9664\u884c\uff0c\u800c\u662f\u66f4\u65b0\u884c\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03Golang\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-207364","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207364","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=207364"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207364\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207364"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207364"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207364"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}