func (m *Migration) Reset() {
	m.sqls = make([]string, 0)
}
Reset the sqls
package migration
import (
	"errors"
	"sort"
	"strings"
	"time"
	"github.com/astaxie/beego"
	"github.com/astaxie/beego/orm"
)
const (
	M_DATE_FORMAT    = "20060102_150405"
	M_DB_DATE_FORMAT = "2006-01-02 15:04:05"
)
type Migrationer interface {
	Up()
	Down()
	Reset()
	Exec(name, status string) error
	GetCreated() int64
}
var (
	migrationMap map[string]Migrationer
)
func init() {
	migrationMap = make(map[string]Migrationer)
}
type Migration struct {
	sqls    []string
	Created string
}
func (m *Migration) Up() {
}
func (m *Migration) Down() {
}
func (m *Migration) Sql(sql string) {
	m.sqls = append(m.sqls, sql)
}