Online Odoo v13 & studio app.

Hi there,

In my task (project) i have 2 datetime fields: start & stop

 i need to calculate the hours between them, so i added following computation on the calculated field:

---

for record in self:

  if record.x_studio_start is set:

      start = record.x_studio_start

      end = record.x_studio_stop

      difference = end - start

      difference_in_seconds = difference.total_seconds()

      record['x_studio_hours_invoiced'] = difference_in_seconds/60**2

---

it worked in a separate (studio)model, but when i want to use the same syntax, it doesn't work.

Any idea would be helpfull !

thx,

roeland