英文:
How to use (variable of type gorm.io/gorm.DB) as github.com/jinzhu/gorm.DB?
问题
现在我已经将我的gorm包升级到了新版本，即"gorm.io/gorm"，但我正在使用使用旧版本(github.com/jinzhu/gorm)的包(github.com/qor/admin)。
我需要将gorm.DB(新版本)的值传递给包"github.com/qor/admin"的一个函数，该函数将gorm.DB(旧版本)作为参数
package main
import (
adminPkg "github.com/qor/admin"
database "github.com/youssefsiam38/myfolder/db"
)
func main() {
db, err := database.Connection() // 返回类型为*gorm.io/gorm.DB的db
if err != nil {
panic(err)
}
admin := adminPkg.New(&adminPkg.AdminConfig{DB: db})
}
错误信息：
vet: ./main.go:14:50: 无法将db(类型为gorm.DB的变量)作为结构体字面值中的gorm.DB值使用
英文:
Now I have upgraded my gorm package to the new version which is "gorm.io/gorm" but I am using package (github.com/qor/admin) that use the old version (github.com/jinzhu/gorm) of the package.
I need to pass gorm.DB(new version) value to a function of the package "github.com/qor/admin" that take gorm.DB(old version) as a parameter
package main
import (
adminPkg "github.com/qor/admin"
database "github.com/youssefsiam38/myfolder/db"
)
func main() {
db, err := database.Connection() // retrun db of type *gorm.io/gorm.DB
if err != nil {
panic(err)
}
admin := adminPkg.New(&adminPkg.AdminConfig{DB: db})
}
The err
vet: ./main.go:14:50: cannot use db (variable of type *gorm.DB) as *gorm.DB value in struct literal
答案1
得分: 0
你不能这样做。尽管名称和实现似乎表明它们有关联，但这两个对象实际上并没有关联。
github.com/qor/admin 库有一个开放的问题，所以我建议你保持关注并且可能参与迁移到 gorm 的新版本（如果 github.com/qor/admin 对你的操作很关键，也可以考虑回滚库的升级）。
需要注意的是，如果这些库使用了接口，第三方可能可以修复这个问题。孩子们要好好学习，多使用接口。
英文:
You can't. Those two objects are not related, even though the name and implementations seem to indicate otherwise.
The github.com/qor/admin library has an issue open for that, so I'd stay tuned and/or contribute to migrate to the new version of gorm (and maybe rollback the lib upgrade if github.com/qor/admin is critical for your operations 
It's good to note that if those libs were using interfaces, this could be fixable by third-parties. Stay in school kids, and use interfaces.
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