[英]Gorm auto-migration creating a table with no user-defined attributes (postgresql)
package main
import (
"fmt"
_ "github.com/jinzhu/gorm/dialects/postgres"
"gorm.io/driver/postgres"
"gorm.io/gorm"
)
type Books struct {
gorm.Model
ID uint
title string
author string
description string
display_picture byte
}
func main() {
dsn := //successful create connection string
db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{})
if err != nil {
// fmt.Println(err)
panic(err)
}
b := Books{}
db.AutoMigrate(&b)
data := Books{
title: "Invisible Cities",
author: "Italio Calvino",
description: "This book shows you the power of prose. It's a beautiful read which will make you feel like you're floating on a cloud.",
}
db.Create(&data)
fmt.Println(data)
}
The connection string is correct because the db.AutoMitrate(&b) connects with the database and implements the ID and the gorm.Model attributes (createdAt etc) however it doesn't add my attributes title, author and description.连接字符串是正确的,因为 db.AutoMitrate(&b) 与数据库连接并实现了 ID 和 gorm.Model 属性(createdAt 等),但是它没有添加我的属性标题、作者和描述。
I've spend the whole day googling but I cant find this error anywhere else.我花了一整天的时间在谷歌上搜索,但在其他任何地方都找不到这个错误。 Can anyone help?
任何人都可以帮忙吗? Also I am deleting my Books table in postgres before running the script.
在运行脚本之前,我还在 postgres 中删除了我的 Books 表。
package main
import (
"fmt"
_ "github.com/jinzhu/gorm/dialects/postgres"
"gorm.io/driver/postgres"
"gorm.io/gorm"
)
type Books struct {
gorm.Model
ID uint
Title string
Author string
Description string
Display_Picture byte
}
func main() {
dsn := //successful create connection string
db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{})
if err != nil {
// fmt.Println(err)
panic(err)
}
b := Books{}
db.AutoMigrate(&b)
data := Books{
title: "Invisible Cities",
author: "Italio Calvino",
description: "This book shows you the power of prose. It's a beautiful read which will make you feel like you're floating on a cloud.",
}
db.Create(&data)
fmt.Println(data)
}
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