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

M Turner · ‎03-13-2019

For anyone who finds this by google search, look for this sentence in this thread "instead of JSON.encode() that is replaced with JSON.stringify()" and follow the logic/code extracts that David has put here

This was exactly the issue I was having getting a Catalog Client Script to make a Glide Ajax Call and pull back multiple values - getting it to work on the Portal vs back-end meant I had to use JSON.stringify rather than JSON.encode, exactly as David has said

Janel · ‎03-22-2022

I kept getting this same error in Portal too and I was stringing and parsing everything already.

Turns out, there was an entirely different client script on my catalog item that was set to UI Type: All, that wasn't portal friendly. Whoops!