purchase order controller in d365fo

 class AVAPurchPurchaseOrderControllerExt extends PurchPurchaseOrderController

{
    public static void main(Args _args)
    {
        SrsReportRunController              formLetterController = AVAPurchPurchaseOrderControllerExt::construct();
        AVAPurchPurchaseOrderControllerExt  controller = formLetterController;
       
        controller.parmReportName(ssrsReportStr(AVAPurchPurchaseOrder, Report));
        controller.parmArgs(_args);
        controller.parmShowDialog(false);
        controller.startOperation();
    }

    public static AVAPurchPurchaseOrderControllerExt construct()
    {
        return new AVAPurchPurchaseOrderControllerExt();
    }

    public static SrsReportDataContract newDataContract(Args _args)
    {
        AVAPurchPurchaseOrderControllerExt formLetterController = AVAPurchPurchaseOrderControllerExt::construct();

        if (_args.dataset() != tableNum(VendPurchOrderJour))
        {
            throw error(strFmt("@SYS19306",funcName()));
        }
        
        formLetterController.initDataContract(_args, PrintMgmtDocType::construct(PrintMgmtDocumentType::PurchaseOrderConfirmationRequest).getDefaultReportFormat());
      
        return formLetterController.parmReportContract();
    }

    /// <summary>
    /// 34124  - add the PO number in the email subject
    /// </summary>
    public void runReport()
    {
        PurchaseOrderId purchId = vendPurchOrderJour::findByPurchId(vendPurchOrderJour.PurchId).PurchOrderDocNum;
        
        if (reportContract.parmPrintSettings().printMediumType() == SRSPrintMediumType::Email)
        {
            reportContract.parmPrintSettings().emailSubject(Global::strReplace(reportContract.parmPrintSettings().emailSubject(),"@PurchId@",purchId));
        }
        super();
    }

}