D365FO disposable context class example

Scenario: Payment journal Customer receipt data is not getting.

Below is the route cause: the temp table record is getting cleared.

To fix issue implemented the disposable context concept.

New class :

class CITPaymProposalReportContext implements System.IDisposable

{

    static CITPaymProposalReportContext instance;

    public CustVendPaymProposalTmp vendPaymProposalTemp;

    public void new()

    {

        if (instance)

        {

            throw Error ("Nesting of CITPaymProposalReportContext is not supported.");

        }

        instance = this;

    }

    public void dispose()

    {

        instance = null;

    }

    static public CITPaymProposalReportContext current()

    {

        return instance;

    }

}

Before clearing the record to get it and keep it in global variable using context class so need to create extension for the "CustVendPaymProposalTmp" table insert() method.

[ExtensionOf(TableStr(CustVendPaymProposalTmp))]

final class CITCustVendPaymProposalTmp_TBL_Extension

{

    public void insert()

    {

        using (CITPaymProposalReportContext context = new CITPaymProposalReportContext())

        {

            next insert();

            context.vendPaymProposalTemp = this;

        }

    }

}

Create another extension- Post COC - "PaymentProposalReport" insert payment method and get the record and assign to variable.

[ExtensionOf(classStr(PaymProposalReport))]

final class CITPaymProposalReportClass_Extension

{

  protected void insertPayment(CustVendPaymProposalTmp _custVendPaymProposalTmp)

    {

        

        LedgerJournalTrans ledgerJournalTrans;

        CustVendPDCRegister custVendPDCRegister;

        

        next insertPayment(_custVendPaymProposalTmp);

        CITPaymProposalReportContext context = CITPaymProposalReportContext::current();

        if (context && context.vendPaymProposalTemp)

        {

            _custVendPaymProposalTmp = context.vendPaymProposalTemp;

        }

        

        select ledgerJournalTrans

                        where ledgerJournalTrans.RecId == _custVendPaymProposalTmp.WLKLedgerJournalTransRecId;

        

        if(ledgerJournalTrans)

        {

            _custVendPaymProposalTmp.WLKAmountInTxt = Global::numeralsToTxt(abs(_custVendPaymProposalTmp.PaymentAmountMST));

            _custVendPaymProposalTmp.WLKTxt = ledgerJournalTrans.Txt;

            _custVendPaymProposalTmp.WLKUserId = ledgerJournalTrans.ledgerJournalTable().createdBy;

            select custVendPDCRegister

                        where custVendPDCRegister.LedgerJournalTrans == ledgerJournalTrans.RecId;

            _custVendPaymProposalTmp.PaymReference = ledgerJournalTrans.BankCentralBankPurposeText;

            _custVendPaymProposalTmp.WLKCheckNumber = ledgerJournalTrans.DocumentNum;

            _custVendPaymProposalTmp.BankAccountTableName = ledgerJournalTrans.offsetAccountName();

            _custVendPaymProposalTmp.WLKMaturityDate = ledgerJournalTrans.DocumentDate;

            _custVendPaymProposalTmp.ttsbegin();

            _custVendPaymProposalTmp.selectForUpdate(true);

            _custVendPaymProposalTmp.update();

            _custVendPaymProposalTmp.ttscommit();

            PaymProposalReport::insertCustSettlementTmp(_custVendPaymProposalTmp);

        }

    }

}