hello everyone 

this is my code:-

class bookingschedual(models.model):

_name = 'booking.schedule'

partner_id = fields.Many2one(res.partner, string=customer)

sale_ids = fields.Many2many("sale.order", 'sale_order_rel', "booking_id", "sale_id", string="sale order")

sale_orders = fields.Many2many("sale.order", "booking_sale_rel","booking_id_rec","sale_id_rec",string="sale ids")

in this code when i select one res.partner in partner_id field i got this res.partner's sale order in sale_ids field .

now i want the same value in sale_orders field on click after save button .

how can i do this 

thanks in advance

if any question msg me on skype:- kg songra