1、采购订单的关联销售订单字段从销售模块搬迁到制造模块，并新增一个many2many类型字段，且对字段的自动计算方法进行优化。

sf_sale/models/sale_order.py

@@ -285,8 +285,6 @@ class RePurchaseOrder(models.Model):
         [('standard', '标准采购'), ('consignment', '工序外协'), ('outsourcing', '委外加工'), ('outside', '外购订单')],
         string='采购类型', default='standard', store=True, compute='_compute_purchase_type')
 
-    origin_sale_id = fields.Many2one('sale.order', string='销售订单号', compute='_compute_origin_sale_id')
-
     # 合同编号
     contract_number = fields.Char(string='合同编号', size=20)
     # 合同概况
@@ -311,21 +309,6 @@ class RePurchaseOrder(models.Model):
                             purchase.purchase_type = 'outsourcing'
                             break
 
-    @api.depends('order_line.move_dest_ids.group_id.mrp_production_ids',
-                 'order_line.move_ids.move_dest_ids.group_id.mrp_production_ids', 'origin')
-    def _compute_origin_sale_id(self):
-        for purchase in self:
-            productions_ids = purchase._get_mrp_productions()
-            if productions_ids:
-                if productions_ids[0].sale_order_id:
-                    purchase.origin_sale_id = productions_ids[0].sale_order_id.id
-                    continue
-            order_id = self.env['sale.order'].sudo().search([('name', '=', purchase.origin)])
-            if order_id:
-                purchase.origin_sale_id = order_id.id
-                continue
-            purchase.origin_sale_id = False
-
     delivery_warning = fields.Selection([('normal', '正常'), ('warning', '预警'), ('overdue', '已逾期')],
                                         string='交期状态', default='normal',
                                         tracking=True)