I tried running this example above - but I get the following error:
WE 00:01:03:371: [T:8985] ReferenceError: KKONtx_automation_log is not defined (helpers.js: Line 535)

Could you please tell me what is wrong?

Also, how do I separate data that is fetched from a URL by using a delimiter? Is there some 'mechanism' in the documentation that describes this? My goal is to fetch some data via a url, parse the relevant pieces of data into an array (based on some substrings), and then use this data in my widget.

Hi Gurminder,


You've found a bug. That logging method is mispelled. For now, if you want to test that Array class method you could comment out the offending line. It's in src/core/helpers.js. Just grep for KKONtx. Unfortunately, that won't be fixed until we patch the framework.


Do you mean a csv format?

var response = "one,two,three";
var myArray = response.split(",");
myArray.length === 3;

- Ben

With regards to the second part of the post, I understand the delimiter bit, but I think I accidentally asked the wrong question. What I meant to ask was - is there a ".contains()" function (like in java) that lets me do the following:

if( fetchedData.contains("http://") ){
...
}

After I find a 'match' i need to find the 'index' of the matching phrase and extract information from it.

Hi Zubin,

How about this?

CODE

var str = "http://one,two,http://three";
var a = str.split(",").filter(function (v, i) {
  return v.indexOf("http://") > -1;
});

- Ben

Steve's right, use xpath. Check out the xml dom api part of the docs to understand how to extract the data from your nodes.

Also, I noticed that you're using URL.fetch instead of the asynchronous URL.fetchAysnc. Please be aware that all of your requests must be asynchronous or our QA will bounce back your widget.

- Ben

Hello Steve & Ben,

Thanks for the help.
I did as you said and looked at the documentation and read some forum posts. I am having a bit of a problem displaying the 'parsed' xml. Here is my code. Please tell me what I am doing wrong. (I added comments for my own understanding). Also a sample XML file can be found above - in this posts thread.

var request = new XMLHttpRequest();
var url = "http://***.***.***.***:****/spring-portlet-sample/PCServices?action=isalertpresent&userid=*****@yahoo.com&passwd=******&ct=roku";
request.open( "GET", url, false );
request.setRequestHeader( "Content-type", "text/xml" );
request.send();
if ( request.status == 200 )
print( request.responseText ); //object XMLHTTP

//The bolded line above outputs the XML file

var myXML = XMLDOM.parse( request.responseXML); //parse XML in DOMDocument
var element = myXML.evaluate( "string( response/imageurl )" ); //trying to extract all image url's
print("---- "+element.responseXML); //Object DOMDocument

//The print statement above does not do anything, the output I get is "----Undefined".


Thanks for the help.

I have been trying out various things and cannot get my code to run. Please see post above - if someone can help out, that would be greatly appreciated.

Hi Zubin,
Sorry, it's been pretty busy around here.

As far as your code is concerned, you're confusing some things.

You're still doing a synchronous request, which again won't pass QA.

CODE

request.open( "GET", url, false );

Also, you don't need to set this header, as the server is the authority. Just make sure the server's mime type is text/xml.

CODE

request.setRequestHeader( "Content-type", "text/xml" );

The next code snippet has a number of issues:

CODE

if ( request.status == 200 )
print( request.responseText ); //object XMLHTTP 

//The bolded line above outputs the XML file 

var myXML = XMLDOM.parse( request.responseXML); //parse XML in DOMDocument
var element = myXML.evaluate( "string( response/imageurl )" ); //trying to extract all image url's 
print("---- "+element.responseXML); //Object DOMDocument

1. You should only be checking the status property inside the function that you would set the onreadystatechange handler to (check out the XMLHttpRequest in the docs) when doing an asynchronous request.
2. You're also checking both the responseText and the responseXML properties of the object. In your case, you just should check the responseXML property.
3. Since the value of the responseXML property should already be a document, you don't need to pass it to the XMLDOM.parse method.
4. The result of calling the evaluate method will be a string, number, or a set of nodes. It will not have a responseXML property. Check out p.289 of the docs.

Hope this helps. This should get you pointed in the right direction. It seems to me like you just need to get your head around some of the things that you're doing, but you'll get there.

Also, don't forget the internet is your friend. Do a search for some resources on ajax like this http://www.w3schools.com/ajax/default.asp.

- Ben