{"id":207621,"date":"2025-07-08T10:44:16","date_gmt":"2025-07-08T02:44:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207621\/"},"modified":"2025-07-08T10:44:16","modified_gmt":"2025-07-08T02:44:16","slug":"%e5%a6%82%e4%bd%95%e5%88%a0%e9%99%a4gorm%e5%8c%85%e7%9a%84create%e6%96%b9%e6%b3%95%e4%b8%ad%e7%9a%84returning%e5%ad%90%e5%8f%a5%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207621\/","title":{"rendered":"\u5982\u4f55\u5220\u9664gorm\u5305\u7684Create\u65b9\u6cd5\u4e2d\u7684RETURNING\u5b50\u53e5\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>\u5982\u4f55\u5220\u9664gorm\u5305\u7684Create\u65b9\u6cd5\u4e2d\u7684RETURNING\u5b50\u53e5\uff1f<\/span><\/p>\n<p><span>\u6765\u6e90\uff1astackoverflow<\/span><br \/>\n<span>2024-04-24 08:27:34<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u4eca\u5929\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u5982\u4f55\u5220\u9664gorm\u5305\u7684Create\u65b9\u6cd5\u4e2d\u7684RETURNING\u5b50\u53e5\uff1f\u300b<\/span>\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u7684\u77e5\u8bc6\u70b9\u5305\u62ec<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u65e0\u8bba\u4f60\u662f\u5c0f\u767d\u8fd8\u662f\u8001\u624b\uff0c\u90fd\u9002\u5408\u770b\u4e00\u770b\u54e6~\u6709\u597d\u7684\u5efa\u8bae\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u82e5\u662f\u770b\u5b8c\u6709\u6240\u6536\u83b7\uff0c\u4e5f\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u70b9\u8d5e\u652f\u6301\u5440\uff01\u4e00\u8d77\u52a0\u6cb9\u5b66\u4e60~<\/p>\n<p> \u95ee\u9898\u5185\u5bb9<br \/>\n <\/p>\n<p>\u5728\u4e3a gorm \u5305\u521b\u5efa\u8bb0\u5f55\u65f6\uff0c\u6211\u5bf9\u9ed8\u8ba4\u884c\u4e3a\u6709\u70b9\u56f0\u60d1\u3002<\/p>\n<pre>city := models.city\n\nif err := databases.dbgorm.set(\"gorm:insert_option\", \"returning *\").create(&amp;city).error; err != nil {\n    fmt.println(err.error())\n}<\/pre>\n<p>\u5728\u65e5\u5fd7\u4e2d\u6211\u770b\u5230\u8fd9\u6837\u7684 sql \u67e5\u8be2\uff1a<\/p>\n<pre>insert into \"my_scheme\".\"city\" (\"created_at\",\"updated_at\",\"deleted_at\",\"name\",\"country\") values ('2020-05-19 23:45:18','2020-05-19 23:45:18',null,'new york','usa') returning * returning \"my_scheme\".\"city\".\"id\"<\/pre>\n<p>\u6b63\u5982\u60a8\u4ece\u67e5\u8be2\u4e2d\u770b\u5230\u7684\uff0c\u6211\u6709\u4e00\u4e2a\u53cc <code>returning<\/code> \u5b50\u53e5\uff0c\u8be5\u5b50\u53e5\u4e0d\u6b63\u786e\u5e76\u5f15\u53d1\u9519\u8bef\u3002<\/p>\n<p>\u5728 sql \u67e5\u8be2\u672b\u5c3e\u6dfb\u52a0 <code>id<\/code> \u4f3c\u4e4e\u662f <code>create<\/code> \u65b9\u6cd5\u7684\u9ed8\u8ba4\u884c\u4e3a\u3002\u6211\u600e\u6837\u624d\u80fd\u6539\u53d8\u8fd9\u79cd\u884c\u4e3a\uff1f<\/p>\n<p><strong>models.go<\/strong>\uff1a<\/p>\n<pre>package models\n\nimport (\n    \"my_app\/proto\"\n    \"time\"\n)\n\ntype City struct {\n    Id uint64\n    CreatedAt time.Time\n    UpdatedAt time.Time\n    DeletedAt *time.Time\n    proto.City\n}\n\nfunc (City) TableName() string {\n    return \"my_scheme.city\"\n}<\/pre>\n<p> <\/p>\n<h2>\u89e3\u51b3\u65b9\u6848<\/h2>\n<p> <\/p>\n<p>\u4e0d\uff0c\u6ca1\u6709\u529e\u6cd5\u6539\u53d8\u8fd9\u79cd\u884c\u4e3a\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u5982\u679c\u60a8\u60f3\u5728\u8c03\u7528 create \u51fd\u6570\u540e\u83b7\u53d6 id \u6216\u65f6\u95f4\u6233\uff08createdat \u548c updatedat\uff09\uff0c\u5b83\u4eec\u5c06\u5728\u60a8\u7684\u6a21\u578b\u4e2d\u901a\u8fc7\u6307\u9488\u4f20\u9012\u81ea\u52a8\u66f4\u65b0\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6709\u53e6\u4e00\u4e2a\u5177\u6709\u9ed8\u8ba4\u503c\u7684\u5b57\u6bb5\uff0c\u8bf7\u5c06 <code>default<\/code> \u6807\u8bb0\u6dfb\u52a0\u5230\u6a21\u578b\u4e2d\u7684\u6b64\u5b57\u6bb5\u3002\u5e76\u4e14 gorm \u5728\u8c03\u7528 <code>create<\/code> \u540e\u4e5f\u4f1a\u81ea\u52a8\u66f4\u65b0\u8be5\u5b57\u6bb5\u3002<\/p>\n<pre>type city struct {\n    id        uint64\n    createdat time.time\n    updatedat time.time\n    deletedat *time.time\n\n    somefield *string `gorm:\"default:test\"`\n}\n\n\/\/ ...\n\ncity := models.city{}\n\nif err := databases.dbgorm.create(&amp;city).error; err != nil {\n    fmt.println(err.error())\n}\n\nfmt.printf(\"%+v\", city)\n\n<\/pre>\n<pre>[2021-04-13 21:39:44]  [1.06ms]  INSERT INTO \"cities\" (\"created_at\",\"updated_at\",\"deleted_at\") VALUES ('2021-04-13 21:39:44','2021-04-13 21:39:44',NULL) RETURNING \"cities\".\"id\"  \n[1 rows affected or returned ] \n\n[2021-04-13 21:39:44]  [0.59ms]  SELECT \"some_field\" FROM \"cities\"  WHERE (id = 26)  \n[1 rows affected or returned ] \n\n{\n  \"Id\": 26,\n  \"CreatedAt\": \"2021-04-13T21:39:44.809605473+07:00\",\n  \"UpdatedAt\": \"2021-04-13T21:39:44.809605473+07:00\",\n  \"DeletedAt\": null,\n  \"SomeField\": \"test\"\n}<\/pre>\n<p>\u5982\u679c\u60a8\u6839\u672c\u4e0d\u60f3\u66f4\u65b0\u6a21\u578b\uff0c\u8bf7\u6309\u503c\uff08\u800c\u4e0d\u662f\u6307\u9488\uff09\u5c06\u5176\u4f20\u9012\u7ed9 <code>create<\/code> \u65b9\u6cd5\uff0c\u5e76\u5ffd\u7565 <code>gorm.errunaddressable<\/code> \u9519\u8bef\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301\uff01\u66f4\u591a\u5173\u4e8eGolang\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f53\u524d\u4f4d\u7f6e\uff1a &gt; &gt; &#46;&#46;&#46;<\/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-207621","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207621","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=207621"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207621\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207621"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207621"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207621"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}