WebApr 11, 2024 · Get first matched record or create a new one with given conditions (only works with struct, map conditions), RowsAffected returns created/updated record’s count // User not found, create a new record with give conditions result := db.FirstOrCreate (&user, User {Name: "non_existing"}) // INSERT INTO "users" (name) VALUES ("non_existing"); WebApr 10, 2024 · 所以说RowsAffected也是一个重要的判断属性。 ... Gorm 官方网站 本网站为 ，您可以在访问其内容 为文档做贡献 只要你有基本的 Markdown 知识就可以开始贡献了 …

go - sqlmock is not matching query, but query is identical and …

WebAug 3, 2024 · Assuming you are using GORM with PostgreSQL. First in your database create a type. CREATE TYPE car_type AS ENUM ( 'SEDAN', 'HATCHBACK', 'MINIVAN'); Then you will need to define the following model: WebUpdateColumn ("position", gorm.Expr ("position + ?", 1)) } if err = results.Error; err == nil { var rowsAffected = int (results.RowsAffected) if pos < 0 { rowsAffected = -rowsAffected } value.SetPosition (currentPos + rowsAffected) err = tx.Model (value).UpdateColumn ("position", gorm.Expr ("position + ?", rowsAffected)).Error } // Create Publish … green bush images

GOのORMを分かりやすくまとめてみた【GORM公式ドキュメン …

WebSep 12, 2024 · 在gorm中提供了RowsAffected()的方法获取更新的条数。 但是我们执行一下的代码会发现这个方法总是输出0，一点都不好使。 db := … WebSep 5, 2016 · For both FirstOrCreate and FirstOrInit, you can use RowsAffected. If return value is "1", the record was found in the DB, i.e. it already exists, and thus wasn't created. If return value is "0", it wasn't found. ... if it exists I want to update some fields. I'm not sure where you want this updation. Locally in your map / struct or in the DB. WebDec 20, 2024 · 33 3. Find returns *gorm.DB which has field Error of type error and a field RowsAffected of type int. If you need both the error and the rows affected you should … greenbush insurance