from odoo import fields, api, models, _


class StockPicking(models.Model):
    _inherit = "stock.picking"

    demand_plan_line_ids = fields.Many2many(comodel_name="sf.production.demand.plan",
                                            string="需求计划明细", compute='_compute_demand_plan_line_ids', store=True)

    @api.depends('move_ids_without_package')
    def _compute_demand_plan_line_ids(self):
        for line in self:
            demand_plan_lines = self.env['sf.production.demand.plan']
            if line.move_ids_without_package and line.move_ids_without_package.demand_plan_line_ids:
                demand_plan_lines |= line.move_ids_without_package.demand_plan_line_ids
            line.demand_plan_line_ids = demand_plan_lines.ids