func init() {
MMs = make(map[string]*MM)
orm.RegisterDataBase("default", "sqlite3", "data.db")
o := orm.NewOrm()
dr := o.Driver()
fmt.Println(dr.Name() == "default")
fmt.Println(dr.Type() == orm.DR_Sqlite)
}
// execute the sql already add in the sql
func (m *Migration) Exec(name, status string) error {
o := orm.NewOrm()
for _, s := range m.sqls {
beego.Info("exec sql:", s)
r := o.Raw(s)
_, err := r.Exec()
if err != nil {
return err
}
}
return m.addOrUpdateRecord(name, status)
}
func isRollBack(name string) bool {
o := orm.NewOrm()
var maps []orm.Params
num, err := o.Raw("select * from migrations where `name` = ? order by id_migration desc", name).Values(&maps)
if err != nil {
beego.Info("get name has error", err)
return false
}
if num <= 0 {
return false
}
if maps[0]["status"] == "rollback" {
return true
}
return false
}
func (m *Migration) addOrUpdateRecord(name, status string) error {
o := orm.NewOrm()
if status == "down" {
status = "rollback"
p, err := o.Raw("update migrations set `status` = ?, `rollback_statements` = ?, `created_at` = ? where name = ?").Prepare()
if err != nil {
return nil
}
_, err = p.Exec(status, strings.Join(m.sqls, "; "), time.Now().Format(M_DB_DATE_FORMAT), name)
return err
} else {
status = "update"
p, err := o.Raw("insert into migrations(`name`, `created_at`, `statements`, `status`) values(?,?,?,?)").Prepare()
if err != nil {
return err
}
_, err = p.Exec(name, time.Now().Format(M_DB_DATE_FORMAT), strings.Join(m.sqls, "; "), status)
return err
}
}