Unhandled exception in GlideAjax

Lisa Silvaroli · ‎02-06-2019

I have a catalog client script that keeps giving "There is a JavaScript error in your browser console"

The console just says "Unhandled exception in GlideAjax."

This is the code I believe it is having the issue with:

var ga = new GlideAjax('StaffInfoAjax3');
			ga.addParam('sysparm_name', 'getStaffInfo');
			ga.addParam('sysparm_staff', staffId);
			ga.addParam('sysparm_access_action', pass_action);
			ga.getXMLAnswer(response);
			ga.getXMLAnswer(function(response){
			response = JSON.parse(response);

What do I need to change to make it work?

DScroggins · ‎02-14-2019

This is the best way to learn! 🙂

Ok so my preferred way to return multiple values is to place them into an object then stringify (convert the object to a string) and return to the client script. The client script can then convert back to an object and you can do with the values as you please. For example taking your script above (getUserName) lets say your wanted to return multiple values from the user record for use in the client script it would look like this: p.s ive changed the name of the function to getUserDetails

var GetUserInfo = Class.create();
GetUserInfo.prototype = Object.extendsObject(global.AbstractAjaxProcessor, {
	
	
	getUserDetails: function(){
                var obj = {};		
		var userRecord = new GlideRecord("sys_user");
		if(userRecord.get(this.getParameter('sysparm_userID'))){
                     
                  
                  obj.first_name = userRecord.getValue('first_name');
                  obj.last_name = userRecord.getValue('last_name');
                  obj.email = userRecord.getValue('email');
                  //Reference Field will return sys_id. Use getDisplayValue() to return display value
                  obj.manager = userRecord.getValue('manager');

                }
		
                 return JSON.stringify(obj);         
	},


    type: 'GetUserInfo'
});

Then to consume the multiple returned values you can parse the returned object string:

function onChange(control, oldValue, newValue, isLoading, isTemplate) {
 
	if (isLoading || newValue === '' || newValue == oldValue) {
		return;
	}
	
	var getUserIn = new GlideAjax('GetUserInfo');
	getUserIn.addParam('sysparm_name','getUserDetails');
	getUserIn.addParam('sysparm_userID', g_form.getValue('sn_userid'));
	getUserIn.getXML(populateUserDetails);
	
	
	function populateUserDetails(response){
		var answer = response.responseXML.documentElement.getAttribute("answer");
		var obj = JSON.parse(answer);

                g_form.clearValue('user_firstname');
		g_form.setValue('user_firstname', obj.first_name);

                g_form.clearValue('user_lastname');
		g_form.setValue('user_lastname', obj.last_name);

                g_form.clearValue('user_email');
		g_form.setValue('user_email', obj.email);

                //Assuming this is a reference field to sys_user table which will consume returned manager sys_id
                g_form.clearValue('user_manager');
		g_form.setValue('user_manager', obj.manager);
	}
	
}

Hopefully this helps a bit.

View solution in original post

DScroggins · ‎02-06-2019

Hi,

Looks like you have a few errors in the code. Try the below and see if it works:

var ga = new GlideAjax('StaffInfoAjax3');
			ga.addParam('sysparm_name', 'getStaffInfo');
			ga.addParam('sysparm_staff', staffId);
			ga.addParam('sysparm_access_action', pass_action);
			
			ga.getXMLAnswer(function(response){
			var resp = JSON.parse(response);

                        //Do something with resp
                        });

Lisa Silvaroli · ‎02-07-2019

HI David,

I tried your suggestion but I am still getting the same error. Here is a bigger sample of the code:

var ga = new GlideAjax('StaffInfoAjax3');
			ga.addParam('sysparm_name', 'getStaffInfo');
			ga.addParam('sysparm_staff', staffId);
			ga.addParam('sysparm_access_action', pass_action);
			
			ga.getXMLAnswer(function(response){
			var resp = JSON.parse(response);

                          if (resp.firstname) {
		          g_form.setValue('user_firstname', resp.firstname);

});

Originally I had the following as the if but changed to to what is above after your suggestion. Both give "There is a JavaScript error in your browser console" and the console is saying "Unhandled exception in GlideAjax."

if (response.firstname) {
g_form.setValue('user_firstname', response.firstname);

DScroggins · ‎02-07-2019

If you use a console.log() statement are you able to see that the GlideAjax is returning a value? Replace the code with this:

var ga = new GlideAjax('StaffInfoAjax3');
ga.addParam('sysparm_name', 'getStaffInfo');
ga.addParam('sysparm_staff', staffId);
ga.addParam('sysparm_access_action', pass_action);			
ga.getXMLAnswer(function(response){
  console.log(response);

});

Also I'm assuming that staffId & pass_action are variables which are being declared before the GlideAjax statement?

Any chance you can show how the StaffInfoAjax3 script include (getStaffInfo method) is scripted? The script include is extending the AbstractAjaxProcessor correct and is marked as client callable?

The first few lines should look like below:

var StaffInfoAjax3 = Class.create();
StaffInfoAjax3 .prototype = Object.extendsObject(AbstractAjaxProcessor, {

Lisa Silvaroli · ‎02-07-2019

I got no response with the Console.log

Here is the code from my StaffInfoAjax3

var StaffInfoAjax3 = Class.create();
StaffInfoAjax3.prototype = Object.extendsObject(AbstractAjaxProcessor, {
	
	getStaffInfo: function() {
		var usrId = this.getParameter('sysparm_staff');
		var usrRec = new GlideRecord('sys_user');
		usrRec.get(usrId);
		if (usrRec) {
			var district = String(usrRec.getValue('u_district'));
 			var building = String(usrRec.getValue('u_building'));
			var roomNumber = String(usrRec.getValue('u_room__'));
 			var phoneNumber = String(usrRec.getValue('phone'));
 			var firstname = String(usrRec.getValue('first_name'));
			var lastname = String(usrRec.getValue('last_name'));
			var title = String(usrRec.getValue('title'));
 			var districtDisp = usrRec.u_district.getDisplayValue();
 			var buildingDisp = usrRec.u_building.getDisplayValue();
 			var email = String(usrRec.getValue('email'));
			return new JSON().encode({u_district: district, u_districtDisp: districtDisp, u_building: building, u_buildingDisp: buildingDisp, u_room_number: roomNumber, u_phone_number: phoneNumber, firstname: firstname, lastname: lastname, title: title, email: email });
			}
		},