Setting due dates on Catalog Tasks

[terrieb]

below is the script I found on this site for setting the due date on catalog tasks to match the due date on Request/RITM, which works just fine.

current.due_date = task.due_date;
var request = current.request.getRefRecord();
request.due_date = task.due_date;
request.update();

I have been asked if there is anyway we can add a formula in this advanced script area on the workflow that the due date would be 3 days AFTER the Request/RITM due date.

For example, the due date on the Request/RITM is 4/20, based on the creation date of today, but they want the due date on the task to be 4/23 instead?

Thanks

[Uncle Rob]

Why would a subtask of a RITM be due 3 days after the RITM itself?

[terrieb]

Because there are a set amount of catalog tasks that have to be completed before the RITM's due date.  The item I am addressing is a Loaner Laptop request.  ITS Teams have to do several tasks before the issue out the loaner laptop (closing the RITM).  Make sense?

[terrieb]

We want the task due date to be 7 days before the due date.  No variables in this catalog item or else I would have used this script.  

var gdt = new GlideDateTime(current.variable_pool.end_date);


gdt.addDays(-7);


task.due_date = gdt;