Checking for a week number in a workflow expression

[Guido1982]

Would this also work in reports by the way?

EDIT:

I have a small problem in the week comparison field. It doesn't show me the 'smaller than' option in the dropdown. So now I have something like 'productionweek is if so_productionweek < format_date(get_date('today'),'W') end'. Don't know if that will work.

SECOND EDIT:

Changed that to:

if so_productionweek < format_date(get_date('today'),'W') true else false end. Hopefully the workflow expression now returns true or false, making the condition functional.

THIRD EDIT:

OK, my second edit broke the application, so no dice there.