[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)
}
連接字符串是正確的,因為 db.AutoMitrate(&b) 與數據庫連接並實現了 ID 和 gorm.Model 屬性(createdAt 等),但是它沒有添加我的屬性標題、作者和描述。
我花了一整天的時間在谷歌上搜索,但在其他任何地方都找不到這個錯誤。 任何人都可以幫忙嗎? 在運行腳本之前,我還在 postgres 中刪除了我的 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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