import "github.com/eaciit/configlist"

type AutoNumber struct {
  configlist.ConfigItemBase
  Title string
  CurrentNo int
}

type AutoNumberList struct{
  configlist.ConfigListBase
}

type (a *AutoNumberList) NewItem() configlist.IConfigItem {
  i := new(AutoNumber)
  return i
}

var l := configlist.NewList(new(AutonumberList))
l.Load()

var a := new(AutoNumber)
a.Id = "NewNumber"
a.Title = "New number system"
a.CurrentNo = 1
l.Set(a)

a, i, f := l.Get("NewNumber")

//--- found
if f {
  a.CurretNo++
} else {
  a = new(AutoNumber)
  a.Id = "NewNumber"
  a.Title = "New number system"
  a.CurrentNo = 1
}
l.Set(a)

e := l.Unset("NewNumber")