import your generate dao package.
import (
_ "github.com/go-sql-driver/mysql"
"github.com/kyokomi/goma"
"xxxxxxx/yyyyyy/zzzz/dao"
"xxxxxxx/yyyyyy/zzzz/entity"
)
db, err := goma.Open("config.json")
if err != nil {
log.Fatalln(err)
}
defer db.Close()
questEntity, err := dao.Quest(db).SelectByID(99); err != nil {
log.Fatalln(err)
}
fmt.Printf("insert after: %+v\n", questEntity)