Plum IVR Support

Posted: **Mon Dec 02, 2013 3:20 pm**

This is an addendum to an earlier post.

I am attempting to dereference the following XML object:

<?xml version="1.0" encoding="UTF-8"?>
<IVRAuthenticationContext>
  <class>com.spiekerpoint.spider.api.IVRAuthenticationContext</class>
  <clientAdministratorId/>
  <name>Sam Electrician</name>
  <workerId>3</workerId>
</IVRAuthenticationContext>

using the following Javascript methods:

Code: Select all

        function getElementText(document, tag) {
             element = document.getElementsByTagName(tag).item(0);
             if (element) {
                 contentNodes = element.childNodes
                 textNode = contentNodes.firstChild
                 if (textNode) { 
                     return(textNode.nodeValue)
                 }
             }
         }

Referencing the function above with the following:

Code: Select all

    <assign name="workerId" expr="getElementText(context,'workerId')" />

always returns null. Numerous tests with serveral variants of the function indicates the there are no text nodes in the DOC under the "<workerId>" element tag. Without some mechanism for debugging the XML parsing, I can't really say why the text nodes don't appear. Any help would be much appreciated.

Posted: **Mon Dec 02, 2013 4:00 pm**

Hi,

We found that a slight modification to the getElementText method allowed for the node value to be properly pulled. We tested this with this script:

Code: Select all

<?php
header("Content-type: text/xml");
echo "<?xml version=\"1.0\"?>";
?>

<vxml version="2.0">
  <var name="workerId"/>
  <script>
    function getElementText(document, tag) {
          element = document.getElementsByTagName(tag).item(0);
          if (element) {
              textNode = element.firstChild
/*
              contentNodes = element.childNodes
              textNode = contentNodes.firstChild
*/
              if (textNode) {
                  return(textNode.nodeValue)
              }
          }
      }
  </script>
  <form>
    <block>
      <data name="context" src="example_xml.xml"/>
      <assign name="workerId" expr="getElementText(context,'workerId')" />
      <prompt> Worker ID: <value expr="workerId"/> </prompt>
    </block>
  </form>
</vxml>

The example_xml.xml file was the XML you provided.

Hope this helps.

Regards,
Plum Support

Posted: **Mon Dec 02, 2013 5:23 pm**

... which is a simpler form of the script that I had -- which is good. Note that I had tried using "element.textValue" which also should have worked, but it came back with null as well. FYI.

Thanks for your time.

Plum IVR Support

Problems dereferencing XML object with javascript

Problems dereferencing XML object with javascript

Re: Problems dereferencing XML object with javascript

Re: Problems dereferencing XML object with javascript