How to pass "previous " object in eventQueue() through Business rule and retrieve in Script Action..

[sumitjumale]

Hi All,

I need to pass "previous " object in eventQueue() through Business rule and retrieve in Script Action. I am able to pass current object.. but I coudnt retrieve   previous object wirh event.parm1.

Please suggest.

Regards,

Sumit Jumale

[poyntzj]

In that case write a lop routine that gets all the elements from the record and then makes it into a JSON string or into an array where each entry is composed of "element | value" and that is then passed to the eventQueue

so you would then pass

gs.eventQueue('test123',strEncoded,'','');

your even at the other end would need to decode your string and process it

[sumitjumale]

Hi Julian,

I have tried using above mentioned logic... so in this case   function like 'changesT()' is not working..

[Brian Dailey1]

Hi Sumit,

Here is a start-to-finish example of how to use a JSON object to pass your previous values as a string.   Keep in mind that the steps are 1) generate an object, 2) encode it to a string (that can be passed in your eventQueue statement), and finally 3) decoding the string to reconstitute your object so that you may work with its values in your script.

          Business Rule script to capture

var previousValues = {};//Instantiate the object used to gather data

var fields = current.getFields();

for(var i=0;i<fields.size();i++){

      var fieldName = fields.get(i).getName();

      var elm = fields.get(i);// Get this field's element

      if(elm.changes() && fieldName.indexOf('sys_') != 0){

              previousValues[fieldName] = previous.getValue(fieldName);

      }

}

var json = new JSON();

var strParm2 = json.encode(previousValues); //Encode the object to a string that can be passed as parm2

gs.eventQueue("your_eventname_here", current, gs.getUserID(), strParm2); //You don't have to pass the userID as parm1, I have just included it for the example

        Later in your script, you will need to decode the encoded object to use it:

var json = new JSON();

var previousValues = json.decode(event.parm2);

//Here's an example of how you can iterate through the fields and access their current/previous values

for(var f in previousValues){

      gs.log(f + " changed from " + previousValues[f] + " to " + current.getValue(f), "TEST SCRIPT");

}

I've adapted this from another example I wrote for doing the same thing but with mail scripts, but this should work just as well and is actually simpler.   That example was passing both current AND previous values using the JSON object.

Give that a try, and hopefully it works ok for you.

Thanks,

-Brian

[sumitjumale]

Hi Brain,

I have tried using above mentioned logic... so in this case   function like 'changesT()' is not working..

please suggest...

[Brian Dailey1]

Hi Sumit,

Please check your code, 'changeT()' is not correct.

It should be 'changes()'.

Please double-check this line.

Thanks,

-Brian