Trying to Calculate Days remaining

[jasonjones]

All,

I'm trying to create a client script or business rule that calculates the difference of a Warranty Expiration Date and the current date to determine a "Number of Days remaining" on the warranty.

I found this script in community to modify, but I'm still missing something.

function onChange(control, oldValue, newValue, isLoading) {
    var strt = g_form.getValue(warranty_expiration);  //set this as current warranty date
    var end = new Date(now.getFullYear(), now.getMonth(), no.getDate());  //This retrieves the current date
    var ajax = new GlideAjax('AjaxDurCalc');
    ajax.addParam('sysparm_name','durCalc');
    ajax.addParam('sysparm_strt',strt);
    ajax.addParam('sysparm_end',end);
    ajax.getXMLWait();
    var answer = ajax.getAnswer();
    g_form.setValue('u_days_of_remaining_warranty', answer);
}

Below is an error that is received.

Any help is appreciated.

Jason

[Mike Patel]

If you are using business rule than you need something liek below

var gdt1 = new GlideDateTime(current.warranty_expiration.getDisplayValue());
var gdt2 = new GlideDateTime();
current.u_days_of_remaining_warranty = gs.dateDiff(gdt1, gdt2, false);

[jasonjones]

I'll try that.  I found something else where I was getting close.

var gdt = new GlideDate();
gdt.getDisplayValue("warranty_expiration");
var gdt2 = new GlideDate();
gdt2.getValue(NowDate);

current.u_days_of_remaining_warranty = GlideDateTime.subtract(gdt, gdt2);

[jasonjones]

Current Script. Still not working.

var gdt = new GlideDate(current.warranty_expiration.getDisplayValue());
var gdt2 = new GlideDate();
current.u_days_of_remaining_warranty = gs.dateDiff(gdt, gdt2, false);

u_days_of_remaining_warranty is a "String" variable.  Should it be that?

[Mike Patel]

Yes, it needs to be duration type. I tested my script in background script and it gives me correct value

[Mike Patel]

also if it's onAfter business rule you need to add

current.update(); which is not recommended so try changing it to onBefore rule