Visual FoxPro

Extract PDF from General Ledger Transactions XML

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Demonstrates how to extract the base64 data representing a PDF file from a General Ledger Transactions XML. Visual FoxPro

LOCAL lnSuccess
LOCAL loXml
LOCAL lcPdfFilename
LOCAL loBinaryDataElem

lnSuccess = 0

* The General Ledger Transactions XML contains the following:

* <?xml version="1.0" encoding="utf-8" ?>
* <eExact xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="eExact-XML.xsd">
*     <GLTransactions>
*         <GLTransaction entry="100000095">
*             <TransactionType number="20" />
*             <Journal type="20" code="VK">
*                 <Description termid="90003">Verkopen</Description>
*                 <GLAccount type="20" code="400000" />
*                 <Currency code="EUR" />
*             </Journal>
*             <Date>2022-04-05</Date>
*             <Document>
*                 <Subject>100000095</Subject>
*                 <DocumentType number="10" />
*                 <Account code="0001" status="C" />
*                 <Amount>
*                     <Currency code="EUR" />
*                     <Value>1382.91</Value>
*                 </Amount>
*                 <References>
*                     <InvoiceNumber>100000095</InvoiceNumber>
*                 </References>
*                 <Attachments>
*                     <Attachment>
*                         <Name>F_100000095.PDF</Name>
*                         <BinaryData>BASE64_ENCODED_PDF_BYTES_HERE</BinaryData>
*                     </Attachment>
*                 </Attachments>
*             </Document>
*             <GLTransactionLine type="20" status="20" line="0" linetype="0">
*                 <Date>2022-04-05</Date>
*                 <VATType>S</VATType>
*                 <FinYear number="2022" />
*                 <FinPeriod number="4" />
*                 <GLAccount type="20" code="400000" />
*                 <Description>100000095</Description>
*                 <DueDate>2022-05-05</DueDate>
*                 <Account code="0001" status="C">
*                     <Name>90 Degrees &amp; co</Name>
*                 </Account>
*                 <Amount>
*                     <Currency code="EUR" />
*                     <Value>1382.91</Value>
*                 </Amount>
*                 <ForeignAmount>
*                     <Currency code="EUR" />
*                     <Value>1382.91</Value>
*                     <Rate>1</Rate>
*                 </ForeignAmount>
*                 <References>
*                     <InvoiceNumber>100000095</InvoiceNumber>
*                 </References>
*             </GLTransactionLine>
*             <PaymentTerms>
*                 <PaymentTerm entry="100000095" type="20" line="0" paymentMethod="B">
*                     <Description>20</Description>
*                     <GLAccount type="20" code="400000" />
*                     <Amount>
*                         <Currency code="EUR" />
*                         <Debit>1382.91</Debit>
*                         <Credit>0</Credit>
*                     </Amount>
*                     <ForeignAmount>
*                         <Currency code="EUR" />
*                         <Debit>1382.91</Debit>
*                         <Credit>0</Credit>
*                     </ForeignAmount>
*                     <Reference />
*                     <YourRef />
*                     <InvoiceNumber>100000095</InvoiceNumber>
*                     <InvoiceDate>2022-04-05</InvoiceDate>
*                     <DueDate>2022-05-05</DueDate>
*                     <PaymentDate>2022-05-05</PaymentDate>
*                 </PaymentTerm>
*             </PaymentTerms>
*         </GLTransaction>
*     </GLTransactions>
* </eExact>

loXml = CreateObject('Chilkat.Xml')

lnSuccess = loXml.LoadXmlFile("c:/temp/example.xml")
IF (lnSuccess = 0) THEN
    ? loXml.LastErrorText
    RELEASE loXml
    CANCEL
ENDIF

lcPdfFilename = loXml.GetChildContent("GLTransactions|GLTransaction|Document|Attachments|Attachment|Name")
IF (loXml.LastMethodSuccess = 0) THEN
    ? "No XML element at the given path."
    RELEASE loXml
    CANCEL
ENDIF

? "PDF Filename = " + lcPdfFilename

loBinaryDataElem = loXml.GetChildWithTag("GLTransactions|GLTransaction|Document|Attachments|Attachment|BinaryData")
IF (loXml.LastMethodSuccess = 0) THEN
    ? "No XML element at the given path."
    RELEASE loXml
    CANCEL
ENDIF

* Decode the base64 data and save to a file.
lnSuccess = loBinaryDataElem.SaveBinaryContent(lcPdfFilename,0,0,"")
IF (lnSuccess = 0) THEN
    ? loBinaryDataElem.LastErrorText
ELSE
    ? "Success."
ENDIF

RELEASE loBinaryDataElem

RELEASE loXml