Getting employee ID to fill in a read only box

[Eli Hurst]

Overview:
I want to grab the element string of 'user_name' from the table "sys_user" based on what user is populated in the "Request For" field of a request template. Then take the 'user_name' element and put it in a read only field farther down the request form. I was trying to get it to happen onChange. This is the code I have so far, and I am not sure what I am doing wrong here. The 2 pieces of code below are the script include as well as the client script. The console.log() and the alert() were just for my testing purposes. Any assisstance would be helpful. Thank you.

Script Include:

var GetEmployeeID = Class.create();
GetEmployeeID.prototype = Object.extendsObject(AbstractAjaxProcessor, {
    getUserEmpID: function() {

        var _userSysid = this.getParameter('sysparm_user_name');
        var emp = "";
        var user = new GlideRecord('sys_user');
        user.addQuery('user_name', _userSysid);
        user.query();
        if (user.next()) {
            emp = user.getElement('user_name');

        }
        return emp;
    },
    type: 'GetEmployeeID'
});

Client Script

function onChange (control, oldValue, isLoading, newValue, isTemplate) {
	if (isLoading) {
		return;
	}
	var ga = new GlideAjax('GetEmployeeID');
	ga.addParam('sysparm_name', 'getUserEmpID');
	ga.addParam('sysparm_user_name', newValue);
	ga.getXML(setUserValue);
	function setUserValue(response)
	{
		var ans = response.responseXML.documentElement.getAttribute("answer");
		console.log(ans);
		alert(ans);
	}
}

[Hitoshi Ozawa]

Yes. Field of type label won't be updated by a script.

I've tested it as below.

1. Created 3 variable. (1) type Label, (2) type Single Line Text, (3) type Single Line Text (read only).

2. Create a simple onLoad script.

function onLoad() {
    g_form.setValue('label', 'test value');
    g_form.setValue('single_line_text', 'test value2');
	g_form.setValue('readonly_single_line_text', 'test value3');
}

3. Execution result. Value was not set on field of type Label.

To set the single line text as read only, check the "Read only" check box.

[Hitoshi Ozawa]

@Eli Hurst Is it now displaying "test user" in in the u_user_name field?

[shloke04]

Hi @Eli Hurst 

Error should not come from the code which I have shared. I have tested the same again in my PDI and works great. Can you check if there are any other script which might be affecting it.

I would suggest revert your script to my version and we can debug that further for you.

Regards,

Shloke

[Eli Hurst]

I set both the include and the client script to your code from above. These are the settings to my Client Script which I assume are correct. Secondly I have added a console.log(answer); right before the g.form.setValue at the end, and the console still brings up nothing more than a red error about GlideAjax.getXMLWait. I am truly confused why this wouldnt work, because it checks out in my head.

[Hitoshi Ozawa]

@Eli Hurst I think I've found the problem. It's trying to set onChange on a dot walked variable.

Variable name is set to "Requestor Information.request_for". This won't work.