{"id":208073,"date":"2025-07-08T08:11:59","date_gmt":"2025-07-08T00:11:59","guid":{"rendered":"https:\/\/server.hk\/cnblog\/208073\/"},"modified":"2025-07-08T08:11:59","modified_gmt":"2025-07-08T00:11:59","slug":"gorm-many2many-%e5%92%8c%e5%85%b3%e8%81%94%e8%a1%a8%e4%b8%ad%e7%9a%84%e9%99%84%e5%8a%a0%e5%ad%97%e6%ae%b5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/208073\/","title":{"rendered":"gorm Many2many \u548c\u5173\u8054\u8868\u4e2d\u7684\u9644\u52a0\u5b57\u6bb5"},"content":{"rendered":"

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

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> gorm Many2many \u548c\u5173\u8054\u8868\u4e2d\u7684\u9644\u52a0\u5b57\u6bb5<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-28 16:15:33<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

IT\u884c\u4e1a\u76f8\u5bf9\u4e8e\u4e00\u822c\u4f20\u7edf\u884c\u4e1a\uff0c\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u66f4\u5feb\uff0c\u4e00\u65e6\u505c\u6b62\u4e86\u5b66\u4e60\uff0c\u5f88\u5feb\u5c31\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u6240\u4ee5\u6211\u4eec\u9700\u8981\u8e0f\u8e0f\u5b9e\u5b9e\u7684\u4e0d\u65ad\u5b66\u4e60\uff0c\u7cbe\u8fdb\u81ea\u5df1\u7684\u6280\u672f\uff0c\u5c24\u5176\u662f\u521d\u5b66\u8005\u3002\u4eca\u5929\u7ed9\u5927\u5bb6\u6574\u7406\u4e86\u300agorm Many2many \u548c\u5173\u8054\u8868\u4e2d\u7684\u9644\u52a0\u5b57\u6bb5\u300b\uff0c\u804a\u804a\uff0c\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n

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

\u6211\u6709\u4e00\u4e2amany2many\u5173\u8054\uff08\u5b83\u7528\u4e8e\u8fd4\u56dejson\uff09\u3002\u5b83\u5728\u6a21\u578b\u4e2d\u58f0\u660e\uff1a<\/p>\n

\/\/ models\/school.go\ntype school struct {\n    id                int      `gorm:\"primary_key\"`\n    name              string `gorm:\"not null\"`\n    accreditations    []accreditation `gorm:\"many2many:school_accreditation;\"` \n}<\/pre>\n
\u6548\u679c\u5f88\u597d\u3002\u6211\u5728 json \u4e2d\u8fd4\u56de\u4e86\u5173\u8054\u3002\u95ee\u9898\u662f\u6211\u5728 school_accreditation<\/code> \u8868\u4e2d\u6709\u4e00\u4e2a\u9644\u52a0\u5b57\u6bb5\uff0c\u4f46\u5b83\u672a<\/strong>\u5305\u542b\u5728\u54cd\u5e94\u4e2d\u3002<\/p>\n
\u6211\u5c1d\u8bd5\u58f0\u660e\u4e00\u4e2a\u5173\u8054\u6a21\u578b\uff0c\u5982\u672c\u7b54\u6848\u4e2d\u63d0\u51fa\u7684\uff1a<\/p>\n
\/\/ models\/schoolAccreditation.go\npackage models\n\nimport \"time\"\n\n\/\/ many to many\ntype SchoolAccreditation struct {\n    StartedAt time.Time `gorm:\"not null\"`\n}<\/pre>\n
\u4f46\u76ee\u524d\u8fd8\u4e0d\u8d77\u4f5c\u7528\u3002\u662f\u5426\u9700\u8981\u58f0\u660e\u4e00\u4e9b\u989d\u5916\u7684\u914d\u7f6e\uff1f\u6216\u8005\u4fee\u6539\uff1f<\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u56de\u7b54\u6211\u81ea\u5df1\uff0c\u6211\u5c06\u94fe\u63a5\u6a21\u578b\u4e2d\u7684\u5b57\u6bb5\u6dfb\u52a0\u4e3a\u201c\u5ffd\u7565\u201d\uff0c\u5e76\u4e14\u5b83\u6709\u6548\uff0c\u4f1a\u81ea\u52a8\u4ece\u5173\u8054\u8868\u4e2d\u68c0\u7d22\u8be5\u5217\u3002<\/p>\n
type Accreditation struct {\n    \/\/ \"accreditation\" table\n    ID          int `gorm:\"primary_key\"`\n    Name        string\n    Description string\n    \/\/ \"school_accreditation table\", so the field is set as ignore with \"-\"\n    EndAt       time.Time `gorm:\"-\"`\n}<\/pre>\n
\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300agorm Many2many \u548c\u5173\u8054\u8868\u4e2d\u7684\u9644\u52a0\u5b57\u6bb5\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u516c\u4f17\u53f7\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-208073","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208073","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=208073"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208073\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=208073"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=208073"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=208073"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}