@api.onchange('employee_id', 'days_appointment')
    @api.multi
    def employee_change(self):
        self.ensure_one()
        if not self.employee_id:
            return

        # Get config param
        # Compute max date
        max_date = datetime.today() + timedelta(days=self.days_appointment)

        _logger.info(" >> Self =%s", self)
        _logger.info(" >> Self ID =%s", self.id)

        # For new record search only unassigned events
        check_events = self.env['stn.med.check.event'].search([
            ('employee_id', '=', self.employee_id.id),
            ('state', '=', 'p'),
            ('|',
             ('appointment_id', '=', False),
             ('appointment_id', '=', self.id)),
            ('|',
             ('date_planned', '<=', max_date),
             ('date_planned', '=', False)),
        ])
        self.check_ids = check_events