Accept Merge Request #2105: (feature/采购申请优化 -> develop)

Merge Request: 采购申请数量修改过滤取消

Created By: @管欢
Reviewed By: @胡尧
Approved By: @胡尧 
Accepted By: @管欢
URL: https://jikimo-hn.coding.net/p/jikimo_sfs/d/jikimo_sf/git/merge/2105

jikimo_purchase_request/models/purchase_request.py

@@ -114,7 +114,10 @@ class PurchaseRequestLine(models.Model):
 
     def _compute_qty_to_buy(self):
         for pr in self:
-            qty_to_buy = sum(pr.mapped("product_qty")) - sum(pr.mapped("qty_done")) - sum(pr.mapped("qty_in_progress"))
+            qty_to_buy = sum(pr.mapped("product_qty"))
+            if pr.purchase_count > 0:
+                qty_to_buy -= sum(pr.mapped("purchase_lines").filtered(lambda po: po.state != 'cancel').mapped(
+                    "product_qty"))
             pr.qty_to_buy = qty_to_buy > 0.0
             pr.pending_qty_to_receive = qty_to_buy