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TA贡献1776条经验 获得超12个赞
您不必Save记录您已经传递的记录Create。
您可以通过运行以下命令对此进行测试:
main.go
package main
import (
"fmt"
"gorm.io/driver/sqlite"
"gorm.io/gorm"
)
type Product struct {
gorm.Model
Code string
Price uint
}
func main() {
db, err := gorm.Open(sqlite.Open("test.db"), &gorm.Config{})
if err != nil {
panic("failed to connect database")
}
db.AutoMigrate(&Product{})
var product Product
if db.First(&product).Error == gorm.ErrRecordNotFound {
fmt.Println("no product record, creating now...")
db.Create(&Product{Code: "D42", Price: 100})
} else {
fmt.Printf("product record found: %v", product)
}
}
go run main.go
no product record, creating now...
go run main.go
product record found: { ... }
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