Unhandled exception in GlideAjax Cannot read properties of null (reading 'callCity')

[Dave_p]

Hi,

I am creating script Include and I am facing this issue. Kindly help.

GlideAJAX

function onChange(control, oldValue, newValue, isLoading) {
   if (isLoading || newValue == '') {
      return;
   }

	var ga = new GlideAjax('locationDetailsClass');
	ga.addParam('sysparm_name', 'locationDetailsFunction');
	ga.addParam('sysparm_ID'. newValue);
	ga.getXML(callBackFunction);
	function callBackFunction(response){
		var answer = response.responseXML.documentElement.getAttribute('answer');
		var op = JSON.parse(answer);
		g_form.setValue('project_city', op.callCity);
		g_form.setValue('project_street', op.callStreet);
		g_form.setValue('project_state_province', op.callState);
		g_form.setValue('project_zip_postal_code', op.callZip);
		g_form.setValue('cost_center', op.costCenter);
	}



}

Script Include

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

	locationDetailsFunction: function(){
		var keyFunction = this.getParameter('sysparm_ID');
		var gr = new GlideRecord('sys_user');
		gr.addQuery('sys_id', keyFunction);
		gr.query();
		if(gr.next()){
			var jsonObj = {};
			jsonObj.callCity = gr.getValue('city');
			jsonObj.callStreet = gr.getValue('street');
			jsonObj.callState = gr.getValue('state');
			jsonObj.callZip = gr.getValue('zip');
			jsonObj.costCenter = gr.getDisplayValue('cost_center');
			return JSON.stringify(jsonObj);
		}
		
	},

    type: 'locationDetailsClass'
});

Error

Regards

Suman P.

[JenniferRah · Accepted solution]

This line has a period instead of a comma in your client script:

ga.addParam('sysparm_ID', newValue);

Beyond that, have you verified these fields have information in them in the record where you are looking them up? I would add some log statements to see how far you are getting and verify the data is getting populated as expected.