退款时进行行锁

myapps/pc_management/api/rent_portal.py

@@ -215,9 +215,9 @@ def rent_money_refund_new():
 
     if not rent_info:
         return jsonify(REFUND_NOT_PRODUCTION_INFO)
-    rent = rent_info.Rent
-    rent_detail = rent_info.RentDetail
-    wx_user = rent_info.WxUser
+    rent = Rent.query.filter_by(rent_no=rent_no).with_for_update().first()
+    rent_detail = RentDetail.query.filter_by(rent_no=rent_no, id=rent_detail_id).with_for_update().first()
+    wx_user = WxUser.query.filter_by(id=rent.user_id).first()
 
     refund_count = int(json_data["refund_count"])
     refund_money = refund_count * rent_detail.price
@@ -244,6 +244,7 @@ def rent_money_refund_new():
         "total_fee": rent.total,
         "refund_fee": refund_money
     }
+
     result = WeChatPayService(app_id=platform_appid_config_list[wx_user.platform],
                               config_name=pay_config_list[rent.mch_platform]).do_refund(data)
     if result:
@@ -270,6 +271,7 @@ def rent_money_refund_new():
             db.session.commit()
         except SQLAlchemyError as e:
             db.session.rollback()
+            logger.info(e)
             raise e
         return BaseResponse()
     else: