Set Display Value on Catalog Client Script - not sys_id

[Henrik Jutterst]

I have this client script that's running when ever a serial number is changed. What I'm looking for is to set the model name to the text field. But the scipt returns the sys_id instead of the Dispaly value.

I've seen some posts here but I'm missing the last piece to understand.

Here's my Catalog UI Script:

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

	var grSerialNumber = new GlideRecord('cmdb_serial_number');
	var snSysID = g_form.getValue('serialNR');
	grSerialNumber.addQuery('sys_id', snSysID);
	grSerialNumber.query(myCallbackFunction);
	g_form.addInfoMessage(snSysID);


	function myCallbackFunction(gr) {
		while (gr.next()) {
			//set Display Value to model filed
			g_form.setValue('model', gr.cmdb_ci);
		}
	}
}

[Willem]

Have you considered making the Model variable a Reference? That way you can set the sys_id as per your script and it will show the user the display value.

Otherwise you need to create a Client callable script include and call that from your client script to get the display value. As I don't think get displayValue works on a glide record callback.

Just to be sure you can try it like this:

function myCallbackFunction(gr) {
        while (gr.next()) {
            //set Display Value to model filed
            g_form.setValue('model', gr.getDisplayValue('cmdb_ci'));
        }
    }

[Henrik Jutterst]

The idea of using a reference filed for the model did strike me but I was hoping that it could be done using just this client script.

But there's not really a reason why I can't use a reference, so maby I'll go with that solution instead.

Buy the way. Thanks for the quick answer!

[Willem]

Using a Client callable script include you can do it like this:

Catalog Client script:

Set UI Type appropriate. For example to All

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

    var ga = new GlideAjax('global.customCmdbUtil');
    ga.addParam('sysparm_name', 'getSerialNumber');
    ga.addParam('sysparm_serialnr', g_form.getValue('serialNR'));
    ga.getXMLAnswer(ajaxResponse);
    function ajaxResponse(answer) {
        g_form.addInfoMessage(snSysID);
        g_form.setValue('model', answer);
    }
}

For the Client callable script include:

var customCmdbUtil = Class.create();
customCmdbUtil.prototype = Object.extendsObject(AbstractAjaxProcessor, {
    getSerialNumber: function () {
        var grSerialNumber = new GlideRecord('cmdb_serial_number');
        var snSysID = this.getParameter('sysparm_serialnr');
        grSerialNumber.addQuery('sys_id', snSysID);
        grSerialNumber.query();
        return grSerialNumber.getDisplayValue("cmdb_ci");
    },

    type: 'customCmdbUtil'
});

[Henrik Jutterst]

Wow, thanks! I'll give it a try!

But, the sys_id that I got from my initial code (in my question) returns the sys_id for the CI-record and not the sys_id for the model on the ci-record.

But there is no way to dot-walk there, because it gets undefined

function myCallbackFunction(gr) {
	while (gr.next()) {
		g_form.addInfoMessage('gr.cmdb_ci.model_id: ' + gr.cmdb_ci.model_id);
		g_form.setValue('model', gr.cmdb_ci.model_id);
	}
}

Is it possible to dotwalk with the example you provided using GlideAjax?