{"id":207485,"date":"2025-07-08T11:37:42","date_gmt":"2025-07-08T03:37:42","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207485\/"},"modified":"2025-07-08T11:37:42","modified_gmt":"2025-07-08T03:37:42","slug":"gorm-%e6%95%b0%e6%8d%ae%e5%ba%93%e4%b8%ad%e7%9a%84%e8%87%aa%e5%8a%a8%e8%bf%81%e7%a7%bb%e5%b0%86%e4%b8%8d%e9%9c%80%e8%a6%81%e7%9a%84%e5%ad%97%e6%ae%b5%e6%b7%bb%e5%8a%a0%e5%88%b0-sql-%e8%a1%a8%e4%b8%ad","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207485\/","title":{"rendered":"GORM \u6570\u636e\u5e93\u4e2d\u7684\u81ea\u52a8\u8fc1\u79fb\u5c06\u4e0d\u9700\u8981\u7684\u5b57\u6bb5\u6dfb\u52a0\u5230 SQL \u8868\u4e2d"},"content":{"rendered":"

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

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> GORM \u6570\u636e\u5e93\u4e2d\u7684\u81ea\u52a8\u8fc1\u79fb\u5c06\u4e0d\u9700\u8981\u7684\u5b57\u6bb5\u6dfb\u52a0\u5230 SQL \u8868\u4e2d<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-22 23:24:59<\/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 \u6570\u636e\u5e93\u4e2d\u7684\u81ea\u52a8\u8fc1\u79fb\u5c06\u4e0d\u9700\u8981\u7684\u5b57\u6bb5\u6dfb\u52a0\u5230 SQL \u8868\u4e2d\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

\u5f53\u6211\u5728 gorm \u6570\u636e\u5e93\u4e2d\u521b\u5efa\u8868\u65f6\uff0c\u5b83\u4f1a\u5411\u8868\u4e2d\u6dfb\u52a0\u6211\u4e0d\u9700\u8981\u7684\u5217\u3002\u6211\u4e0d\u786e\u5b9a\u5b83\u662f\u5982\u4f55\u6dfb\u52a0\u8fd9\u4e9b\u989d\u5916\u5b57\u6bb5\u7684\u3002\u8fd9\u5bfc\u81f4\u6211\u9047\u5230\u4e00\u4e2a\u9519\u8bef\uff0c\u63d0\u793a\u201cpq\uff1a\u5217\u201cuser_id\u201d\u4e2d\u7684\u7a7a\u503c\u8fdd\u53cd\u4e86\u975e\u7a7a\u7ea6\u675f\u201d\u3002 \u201cuser_id\u201d\u662f\u6dfb\u52a0\u7684\u4e0d\u9700\u8981\u7684\u5217\u3002\u6211\u6b63\u5728\u4f7f\u7528 gorm \u548c postgresql\u3002<\/p>\n

\u6211\u7684\u4e24\u4e2a\u8868\u6709\u591a\u5bf9\u591a\u5173\u7cfb\u3002\u6211\u7684\u7b2c\u4e00\u4e2a\u8868\u5df2\u6b63\u786e\u521b\u5efa\uff0c\u7b2c\u4e8c\u4e2a\u8868\u201c\u5546\u5e97\u201d\u662f\u4f7f\u7528\u63d0\u4f9b\u7684\u5b57\u6bb5\u52a0\u4e0a\u4e24\u4e2a\u4e0d\u9700\u8981\u7684\u5b57\u6bb5\u521b\u5efa\u7684\uff1a\u201cuser_id\u201d\u548c\u201cstores_id\u201d\u3002\u6211\u5c1d\u8bd5\u5220\u9664\u591a\u5bf9\u591a\u5173\u7cfb\uff0c\u770b\u770b\u8fd9\u662f\u5426\u662f\u95ee\u9898\u6240\u5728\uff0c\u6211\u5c1d\u8bd5\u5220\u9664\u8868\u5e76\u4f7f\u7528\u4e0d\u540c\u7684\u5b57\u6bb5\u91cd\u65b0\u521b\u5efa\u5b83\u4eec\u3002\u65e0\u8bba\u5982\u4f55\uff0c\u6211\u65e0\u6cd5\u6446\u8131\u8fd9\u4e24\u4e2a\u989d\u5916\u7684\u5217\u3002<\/p>\n

\u7b2c\u4e00\u4e2a\uff08\u5de5\u4f5c\uff09\u8868\uff1a<\/p>\n

type user struct {\n    gorm.model\n    id int `json:\"u_id\"`\n    name string `json:\"u_name\"`\n    stores []store `gorm:\"many2many:stores;\" json:\"stores\"`\n}<\/pre>\n
\u5f53\u6211\u6267\u884c\u201c\\d users\u201d\u65f6\uff0c\u6211\u5f97\u5230\u4ee5\u4e0b\u5217\uff1aid\u3001created_at\u3001updated_at\u3001deleted_at\u3001name\u3002<\/p>\n
\u7b2c\u4e8c\u4e2a\uff08\u6709\u95ee\u9898\u7684\uff09\u8868\uff1a<\/p>\n
type stores struct {\n    gorm.model\n    id int `json:\"s_id\"`\n    num int `gorm:\"unique\" json:\"s_num\"`\n    users []user `gorm:\"many2many:user\" json:\"users\"`\n}<\/pre>\n
\u5f53\u6211\u6267\u884c\u201c\\d\u201d\u5b58\u50a8\u65f6\uff0c\u6211\u5f97\u5230\u4ee5\u4e0b\u5217\uff1auser_id\u3001vehicle_id\u3001id\u3001created_at\u3001updated_at\u3001deleted_at\u3001num\u3002<\/p>\n
\u6211\u901a\u8fc7\u4ee5\u4e0b\u4ee3\u7801\u6267\u884c\u8fd9\u4e9b\u8868\u7684\u521b\u5efa\uff1a<\/p>\n
db.AutoMigrate(&User{})\ndb.AutoMigrate(&Store{})<\/pre>\n
\u53e6\u4e00\u65b9\u9762\uff0c\u5982\u679c\u6211\u5c06 gorm:\"primary_key\";auto_increment\"<\/code> \u6dfb\u52a0\u5230\u7ed3\u6784\u4e2d\u7684 id \u503c\uff0c\u5219\u4f1a\u6536\u5230\u9519\u8bef\u201cpq: \u5217\u201cuser_id\u201d\u5728\u4e3b\u952e\u7ea6\u675f\u4e2d\u51fa\u73b0\u4e24\u6b21\u201d\u3002\u6211\u80fd\u591f\u901a\u8fc7\u5220\u9664 primary_key \u548c auto_increment \u5c5e\u6027\uff0c\u8fd0\u884c automigrate() \u7136\u540e\u5c06\u5176\u6dfb\u52a0\u56de\u6765\u5e76\u518d\u6b21\u8fd0\u884c automigrate() \u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898 – \u8fd9\u5b8c\u5168\u6ca1\u95ee\u9898\u5e76\u4e14\u6709\u6548\u3002<\/p>\n
\u6211\u8fd8\u5c1d\u8bd5\u624b\u52a8\u63d2\u5165 user_id \u548c store_id\u3002\u8fd9\u5de5\u4f5c\u5f97\u5f88\u597d\uff0c\u53ea\u662f\u6211\u6bcf\u6b21\u90fd\u5fc5\u987b\u751f\u6210\u65b0\u7684\uff0c\u56e0\u4e3a\u5b83\u4eec\u9700\u8981\u552f\u4e00\u6027\u3002\u636e\u6211\u6240\u77e5\uff0c\u9519\u8bef\u201cpq\uff1a\u201cuser_id\u201d\u5217\u4e2d\u7684\u7a7a\u503c\u8fdd\u53cd\u4e86\u975e\u7a7a\u7ea6\u675f\u201d\u662f\u7531\u4e8e\u6211\u5728\u521b\u5efa\u5546\u5e97\u65f6\u6ca1\u6709\u63d0\u4f9b user_id \u6216 store_id \u9020\u6210\u7684\u3002\u6211\u53ea\u662f\u5f88\u56f0\u60d1\u4e3a\u4ec0\u4e48\u4f1a\u751f\u6210 user_id \u548c store_id \u5217\uff0c\u6211\u5e0c\u671b\u6211\u80fd\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u901a\u8fc7\u5220\u9664 gorm.model \u4fee\u590d\u4e86\u91cd\u590d\u7684 id \u9519\u8bef\uff0c\u6b63\u5982 @(akshaydeep girl) \u6307\u51fa\u7684 gorm.model \u6240\u5e26\u6765\u7684\u540e\u679c\u3002\u81f3\u4e8e\u4e0d\u65ad\u81ea\u52a8\u6dfb\u52a0\u7684\u968f\u673a\u201cuser_id\u201d\u548c\u201cstore_id\u201d\uff0c\u5b83\u4eec\u662f\u7531\u4e8emany2many gorm\u5173\u7cfb\u800c\u6dfb\u52a0\u7684\u3002\u6211\u53ef\u4ee5\u901a\u8fc7\u5207\u6362\u8fc1\u79fb\u987a\u5e8f\u6765\u5220\u9664\u5b83\u4eec\u3002<\/p>\n
func dbmigrate(db *gorm.db) *gorm.db {\n    db.automigrate(&store{})\n    db.automigrate(&user{})\n    return db\n}<\/pre>\n
\u5f53\u6211\u5220\u9664\u8fd9\u4e24\u4e2a\u8868\u5e76\u4f7f\u7528\u65b0\u7684\u8fc1\u79fb\u987a\u5e8f\u91cd\u65b0\u7f16\u8bd1\/\u8fd0\u884c\u6211\u7684\u9879\u76ee\u65f6\uff0c\u521b\u5efa\u7684\u5546\u5e97\u8868\u6ca1\u6709\u968f\u673a\u7684\u201cuser_id\u201d\u548c\u201cstore_id\u201d\uff0c\u5e76\u4e14\u7528\u6237\u8868\u4e5f\u6ca1\u6709\u8fd9\u4e9b\u3002 <\/p>\n
\u8fd9\u5c31\u662f gorm.model<\/code> \u7684\u6837\u5b50<\/p>\n
type model struct {\n  id        uint `gorm:\"primary_key\"`\n  createdat time.time\n  updatedat time.time\n  deletedat *time.time\n}<\/pre>\n
\u5f53\u6211\u4eec\u5728\u7ed3\u6784\u4f53\u4e2d\u8c03\u7528 gorm.model<\/code> \u65f6\uff0c\u8fd9\u610f\u5473\u7740\u6211\u4eec\u5728\u5f53\u524d\u7ed3\u6784\u4f53\u4e2d\u6dfb\u52a0 gorm.model<\/code> \u7684\u9ed8\u8ba4\u5b57\u6bb5\u3002<\/p>\n
type stores struct {\n    gorm.model\n....<\/pre>\n
\u6240\u4ee5\u4f60\u7684\u7528\u6237\u6a21\u578b\u770b\u8d77\u6765\u50cf<\/p>\n
ype User struct {\n    ID        uint `gorm:\"primary_key\"`\n    CreatedAt time.Time\n    UpdatedAt time.Time\n    DeletedAt *time.Time\n    ID int `json:\"u_id\"`\n    Name string `json:\"u_name\"`\n    Stores []Store `gorm:\"many2many:stores;\" json:\"stores\"`\n}<\/pre>\n
\u8be5\u9519\u8bef\u53ef\u80fd\u662f\u7531\u4e8e\u91cd\u590d\u7684primary_key \u952e\u9020\u6210\u7684\u3002\u5c1d\u8bd5\u5c06 id int<\/code>json:”u_id”“ \u91cd\u547d\u540d\u4e3a userid<\/code>\u3002\u60a8\u8fd8\u9700\u8981\u66f4\u65b0 stores<\/code>\u3002<\/p>\n
\u672c\u7bc7\u5173\u4e8e\u300aGORM \u6570\u636e\u5e93\u4e2d\u7684\u81ea\u52a8\u8fc1\u79fb\u5c06\u4e0d\u9700\u8981\u7684\u5b57\u6bb5\u6dfb\u52a0\u5230 SQL \u8868\u4e2d\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8eGolang\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\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-207485","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207485","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=207485"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207485\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207485"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207485"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207485"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}