QSqlQuery query("SELECT code,proveedor,paydate FROM prosoft_orders");
    QSqlQuery query2("SELECT TO_DAYS(paydate) - TO_DAYS(now()) FROM `prosoft_orders` WHERE 1");
    
    if (query.isActive()){
       while (query.next()){
          new QListViewItem(listview_orders_alert,
                  query.value(0).toString(),    
                  query.value(1).toString(),
                  query2.value(0).toString());
  
                             }
                      }