public string Save(PhoneBookModel model)
        {
            T_PHONE_BOOK item = new T_PHONE_BOOK();

            model.Fill(item);

            if (model != null)
            {
                if (service.Save(item))
                {
                    return("Elementi u shtua me sukses");
                }
                else
                {
                    return("Probleme gjate shtimit");
                }
            }

            else
            {
                return("Specifikoni nje objekt te vlefshem");
            }
        }