(Ruby) 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.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

# 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>

xml = Chilkat::CkXml.new()

success = xml.LoadXmlFile("c:/temp/example.xml")
if (success == false)
    print xml.lastErrorText() + "\n";
    exit
end

pdfFilename = xml.getChildContent("GLTransactions|GLTransaction|Document|Attachments|Attachment|Name")
if (xml.get_LastMethodSuccess() == false)
    print "No XML element at the given path." + "\n";
    exit
end

print "PDF Filename = " + pdfFilename + "\n";

# binaryDataElem is a CkXml
binaryDataElem = xml.GetChildWithTag("GLTransactions|GLTransaction|Document|Attachments|Attachment|BinaryData")
if (xml.get_LastMethodSuccess() == false)
    print "No XML element at the given path." + "\n";
    exit
end

# Decode the base64 data and save to a file.
success = binaryDataElem.SaveBinaryContent(pdfFilename,false,false,"")
if (success == false)
    print binaryDataElem.lastErrorText() + "\n";
else
    print "Success." + "\n";
end