GlideDateTime.subtract doesn't work

[abrouf]

I used the following commands on default value to calculate the number of days subtracting current date to due date but didn't work. Any comment or advise is greatly appreciated.

javascript:calendar_duration = GlideDateTime.subtract(due_date.getDisplayValue(), gs.nowDateTime());

Following this syntax:

<duration_field> = GlideDateTime.subtract(<start_field>.getDisplayValue(),gs.nowDateTime());

[abrouf]

Hi Gowrisaankar,

Yes I did, here is my due date info:

[andymcdonald]

this script works on the server:

var gr = new GlideRecord("problem");

if (gr.get('the_sys_id')){ // replace with actual sys_id

        if (gr.due_date){

              var start = new GlideDateTime(gr.due_date);     //due date field value

              var end = new GlideDateTime();

              var dur = GlideDateTime.subtract(start, end); // returns a GlideDuration object

              gr.calendar_duration = dur; //setting the duration field

              gr.update();

        }

}

[abrouf]

Hi Andrew,

Thank you for sharing your thought. I used this script like this - System Policy > Events > Script Actions>New. No luck.

[Prateek kumar]

What are you actually trying to achieve??

If you want that field to be populated with the duration you can actually use a calculated field.

[abrouf]

Exactly that I want and I used calculated field option first but no luck