How to post a ledger transaction with help from LedgerJournalEngine

This is just some sample code I put together for somebody asking how to post customer payment line(s) using LedgerJournalEngine* classes.

LedgerJournalEngine* classes are mostly used by the forms to do work and execute code before/after events and datasource actions.

It may make more sense to just complete all of the LedgerJournalTrans fields, but using the engine can't really hurt and might be more helpful in some cases.

static void Job81(Args _args)
{
    LedgerJournalEngine_CustPayment ledgerJournalEngine;
    LedgerJournalTable              ledgerJournalTable;
    LedgerJournalTrans              ledgerJournalTrans;
    NumberSeq                       numberSeq;
    Voucher                         voucher;
    ;

    // This just selects the header you are inserting into
    select firstonly ledgerJournalTable where ledgerJournalTable.JournalNum == 'GB 0056226';

    if (!ledgerJournalTable)
        throw error ("Unable to find journal table record");


    ledgerJournalTrans.initValue();

    numberSeq = NumberSeq::newGetNumFromCode(ledgerJournalTable.VoucherSeries);

    if (numberSeq)
    {
        ledgerJournalTrans.Voucher      = numberSeq.num();
        voucher                         = ledgerJournalTrans.Voucher;
    }

    ledgerJournalTrans.JournalNum       = ledgerJournalTable.JournalNum;
    ledgerJournalTrans.TransDate        = SystemDateGet();
    ledgerJournalTrans.AccountType      = LedgerjournalACType::Cust;
    ledgerJournalTrans.AccountNum       = '100003';

    ledgerJournalEngine = LedgerJournalEngine::construct(LedgerJournalType::CustPayment);
    ledgerJournalEngine.newJournalActive(ledgerJournalTable);
    ledgerJournalEngine.accountModified(ledgerJournalTrans);
    ledgerJournalTrans.AmountCurCredit  = 10;
    ledgerJournalTrans.OffsetAccountType    = ledgerJournalTable.OffsetAccountType;
    ledgerJournalTrans.OffsetAccount        = ledgerJournalTable.OffsetAccount;
    ledgerJournalTrans.CurrencyCode         = CompanyInfo::standardCurrency();
    ledgerJournalEngine.currencyModified(ledgerJournalTrans);
    ledgerJournalTrans.insert();

    if (numberSeq   && ledgerJournalTrans.Voucher   == voucher)
    {
        numberSeq.used();
    }
    else
    {
        if (numberSeq)
            numberSeq.abort();
    }

    info("Done");
}