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class MrpLine(models.Model):
    _name = 'mrp.line'

    plant_queue = fields.One2many(comodel_name='mrp.plant', inverse_name='assembly_line_id', domain=([('state', '=', 'start')]) )
    on_going_plant_id = fields.Many2one('mrp.plant', readonly=True, store=True, compute="_compute_on_going_plant")
    on_going_order_id = fields.Many2one(related='on_going_plant_id.k3_order_id', store=True, readonly=True)
    @api.depends('plant_queue')
    def _compute_on_going_plant(self):
        # 用于修改on_going_plant_id
        ...

class MrpPlant(models.Model):
    _name = 'mrp.plant'
    k3_order_id = fields.Many2one('k3.order', required=True)
    assembly_line_id = fields.Many2one('mrp.line', related='k3_order_id.exec_mrp_line_id', readonly=True)
    state = fields.Selection(selection=[('start', '开始'), ('stop', '停止')], default='start')
    def change(self):
        # 修改状态
        ...

在MrpLine的菜单中修改时，或者在mrp.plant创建时会触发MrpLine的_compute_on_going_plant
但是在MrpPlant里的方法修改当前数据时，并不会触发MrpLine的_compute_on_going_plant。
请问要怎么处理，谢谢各位！