Hi,

Inverse: The inverse function is mainly used to make the compute field editable. A user can’t change a compute field value.An inverse function can be used to solve this problem.This inverse function can be given along with the compute function.


margin = fields.Float(string='Margin', compute='_compute_margin',inverse='_inverse_margin')


@api.depends('price_subtotal', 'cost_amount', 'product_price', 'price_unit')
def _compute_margin(self):
    print('---------Computing Margin----------')
    for line in self:
        line.margin = (line.product_price - (
                line.price_subtotal + line.cost_amount)) / line.price_unit


@api.depends('price_subtotal', 'cost_amount', 'product_price', 'price_unit', 'margin')
def _inverse_margin(self):
    print('---------Inversing Margin----------')
    for line in self:
            line.price_subtotal = (line.product_price - (line.margin * line.price_unit)) - line.cost_amount

Hope it helps

@Zbik So what's the answer? Because you didn't provide one, and let's be honest, documentation is pathetic. I'm trying to do the same for my field, it should be computed while one condition is checked, but if not, then the field should be editable manually. You know how to do this? I have an error that maximum recursion depth exceeded.

@api.depends('product_id')
def _get_note_field(self):
   """Method for get note field from SO.

   :return: note
   """
   for line in self:
      note_from_sale = self.env['sale.order.line'].search([
         ('product_id', '=', line.product_id.id),
         ('id', '=', line.sale_line_id.id)
      ])

      if note_from_sale:
         if note_from_sale.note:
            line.note = note_from_sale.note
         else:
            line.note = None
      else:
         line.note = None

def _set_po_note(self):
   for line in self:
      if not line.order_id.sale_order_id:
         line.write({'note': line.note})