How to query RITM table using a catalog variable field and client script parameter?

[Community Alums]

Hello, I am trying to query with catalog item variables while gliding RITM table. My goal is to use script include to perform a query using the variable  - firstname and value retrieved from newValue (Client Script) in variable itself before being submitted as requested item. Therefore, an alert returns when  I change the field (firstname) with data that is already submitted. The issue is that it seems to not be working when I query the following way the RITM table for the variables.

The variables.sysid (retrieved from RITM table). I think the issue might be there, but could not really make sense of it.

Also, another option I thought would work is current.variables.firstname.

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

    checkUserExists: function() {
        //var user_id = this.getParameter('username'); //get the value from client script
        var gr = new GlideRecord('sc_req_item');
		
		gr.addQuery('variables.47c6ee9047a11110bfc57868f36d43b6I',this.getParameter('sysparm_firstname')),
       // 

        //gr.addQuery('variables.5fa6ae5047a11110bfc57868f36d4314=andihoxha', this.getParameter('sysparm_username'));
        // gr.addEncodedQuery('variables.5fa6ae5047a11110bfc57868f36d4314=andihoxha');

        //gr.addQuery()
        gr.query();
        if (gr.next()) {
            return true;

        } else {

            return false;
        }

    },

    type: 'UserExists'
});

Client script

function onChange(control, oldValue, newValue, isLoading) {
   if (isLoading || newValue == '') {
      return;
   }
    
    //Type appropriate comment here, and begin script below
    var ga = new GlideAjax('UserExists'); // Ajax call
    ga.addParam('sysparm_name', 'checkUserExists'); //method from sclipt include which is used to add parameters
    ga.addParam('sysparm_firstname', newValue);


    ga.getXML(callScriptInclude); //callback the Script include

    function callScriptInclude(response) {
        var answer = response.responseXML.documentElement.getAttribute("answer"); //response return from Script Include
		
        if (answer == 'true') {
			alert('123');
            
        } 
        
    }	
   //Type appropriate comment here, and begin script below
   
}

[Muhammad Khan · Accepted solution]

Hi Andi,

I think "variables.47c6ee9047a11110bfc57868f36d43b6I" contains an extra character which is I at the end.

So try replacing

gr.addQuery('variables.47c6ee9047a11110bfc57868f36d43b6I',this.getParameter('sysparm_firstname')),

With

gr.addQuery('variables.47c6ee9047a11110bfc57868f36d43b6',this.getParameter('sysparm_firstname')),

[Community Alums]

Thank you, it appears this tiny thing made the whole annoying for nothing.