xorm/examples/conversion.go
2016-03-16 23:05:25 +08:00

78 lines
1.2 KiB
Go

package main
import (
"errors"
"fmt"
"os"
"github.com/go-xorm/xorm"
_ "github.com/mattn/go-sqlite3"
)
type Status struct {
Name string
Color string
}
var (
Registed Status = Status{"Registed", "white"}
Approved Status = Status{"Approved", "green"}
Removed Status = Status{"Removed", "red"}
Statuses map[string]Status = map[string]Status{
Registed.Name: Registed,
Approved.Name: Approved,
Removed.Name: Removed,
}
)
func (s *Status) FromDB(bytes []byte) error {
if r, ok := Statuses[string(bytes)]; ok {
*s = r
return nil
} else {
return errors.New("no this data")
}
}
func (s *Status) ToDB() ([]byte, error) {
return []byte(s.Name), nil
}
type User struct {
Id int64
Name string
Status Status `xorm:"varchar(40)"`
}
func main() {
f := "conversion.db"
os.Remove(f)
Orm, err := xorm.NewEngine("sqlite3", f)
if err != nil {
fmt.Println(err)
return
}
Orm.ShowSQL(true)
err = Orm.CreateTables(&User{})
if err != nil {
fmt.Println(err)
return
}
_, err = Orm.Insert(&User{1, "xlw", Registed})
if err != nil {
fmt.Println(err)
return
}
users := make([]User, 0)
err = Orm.Find(&users)
if err != nil {
fmt.Println(err)
return
}
fmt.Println(users)
}