Hello, I have a function that should validate that a product is of type ' Service' . When this condition is met the ' sequence' field must increase its value sequentially.  This method is written in the sale.order.line model.

Please if this function is badly implemented , tell me I can do to correct it.

I hope tips and suggestions thank you very much. Thanks

@api.depends('product_id.product_tmpl_id.type')

def _niu_validation(self):

    if product_id.product_tmpl_id.type == 'service':

          sequence= self.env['ir.sequence'].next_by_code('sale.order.line')

    return super(SaleOrderLine,self)