Issue with auto population script - value immediately disappears

[JordyZ]

Hi,

I have an onChange client script + script include running that, on the incident form, the business service field (parent) gets auto populated based on the service offering field (child), before saving the form. The auto population part works, but there are issues. 

Scenario 1: if you manually populate the business service first and then manually select the service offering, the value of the service offering shows for a millisecond and then immediately disappears

Scenario 2:  you manually populate the service offering, this auto populates the business service (correct behavior), but when you try to select another service offering (within the same business service), the service offering value also immediately disappears

Client script

function onChange(control, oldValue, newValue, isLoading, isTemplate) {
	if (isLoading || newValue === '') {
		return;
	}
	var sc = g_form.getValue('service_offering');

	var ga = new GlideAjax('dvtbsautopop');
	ga.addParam('sysparm_name', 'getServDetails');
	ga.addParam('sysparm_servId', g_form.getValue('service_offering'));
	ga.getXMLAnswer(getResponse);

	function getResponse(response) {
		var res = JSON.parse(response);
		g_form.setValue('business_service', res.service_offering);

	}
}

Script include

var dvtbsautopop= Class.create();
dvtbsautopop.prototype = Object.extendsObject(AbstractAjaxProcessor, {

getServDetails: function() {
		//gs.addInfoMessage('script include triggered');

		var servId = this.getParameter('sysparm_servId');
		//gs.addInfoMessage('service scr--' + servId);
		obj = {};

		var gServOffering = new GlideRecord('service_offering');
		if (gServOffering.get(servId)) {
			obj.service_offering = gServOffering.getValue('parent');
		}
		//gs.addInfoMessage(obj+JSON.stringify(obj));
		return JSON.stringify(obj);
	},

	type: 'dvtbsautopop'
});

Is there something wrong with the scripts? 

Thanks,

Jordy

[Tony Chatfield1]

Hi, your script does not seem to set content for 'service_offering' field and based on your description I would suspect that you have other client side scripts or policy setting content of this field based on a change to 'business_service'

[JordyZ]

Hello @Tony Chatfield1 , thanks for replying.

the only thing I have for the service offering field as far as I know is this ref qualifier: 

javascript:(!gs.nil(current.business_service)? 'parent='+current.business_service: '');

Or could this have anything to do with it? It's the dictionary override of the business service field.

[ricker]

@JordyZ,

When is that client script running? onChange of business service?  It sounds like you have multiple onChange scripts or UI Policies conflicting. 

You're just returning a sys_id string you don't need an object in your script include.

[JordyZ]

Hi @ricker, thanks for replying.

It's onChange of service offering. I don't see any other scripts running for this field, nor any UI policy that could clash with it. Is there a way to know for sure?

The only thing I have for the service offering field as far as I know is this ref qualifier: 

javascript:(!gs.nil(current.business_service)? 'parent='+current.business_service: '');

Or could this have anything to do with it? It's the dictionary override of the business service field.

What would the script look like without the object?