修复 工艺外协工序采购单已创建账单并且过账，退回调整删除后报错的问题

sf_manufacturing/models/mrp_production.py

@@ -440,6 +440,18 @@ class MrpProduction(models.Model):
         process_parameters = []
         account_moves = []
         parameters_not = []
+        # 获取原有的工单对应的工序
+        origin_designs = self.workorder_ids.technology_design_id
+        # 获取已删除的工序
+        deleted_designs = origin_designs - self.technology_design_ids
+        if deleted_designs:
+            for deleted_design in deleted_designs:
+                workorder = self.env['mrp.workorder'].search([('technology_design_id', '=', deleted_design.id)])
+                purchase = workorder._get_surface_technics_purchase_ids()
+                account = self.env['account.move'].search([('id', 'in', purchase.invoice_ids.ids)])
+                if account.state not in ['cancel', False]:
+                    if purchase.name not in account_moves:
+                        account_moves.append(purchase.name)
         special_design = self.technology_design_ids.filtered(
             lambda a: a.routing_tag == 'special' and a.is_auto is False)
         for special in special_design:
@@ -451,11 +463,7 @@ class MrpProduction(models.Model):
                 if not product_production_process:
                     if special.process_parameters_id not in process_parameters:
                         process_parameters.append(special.process_parameters_id.display_name)
-            purchase = self.env['purchase.order'].search([('origin', '=', special.production_id.name)])
+            
-            account = self.env['account.move'].search([('id', 'in', purchase.invoice_ids)])
-            if account.state not in ['cancel', False]:
-                if purchase.name not in account_moves:
-                    account_moves.append(purchase.name)
         if account_moves:
             raise UserError(_("请联系工厂生产经理对采购订单为%s生成的账单进行取消", ", ".join(account_moves)))
         if parameters_not: