from typing import ValuesView from odoo import models class SaleOrderLine(models.Model): _inherit = "sale.order.line" def _timesheet_create_project_prepare_values(self): values = super(SaleOrderLine, self)._timesheet_create_project_prepare_values() if self.order_id and self.order_id.opportunity_id: values['name'] = self.order_id.opportunity_id.name return values