From c783bd7d7041947782feb63fdb9d3aaf71bbc144 Mon Sep 17 00:00:00 2001
From: kingkaki <30930379+kingkaki@users.noreply.github.com>
Date: Fri, 19 Nov 2021 14:50:24 +0800
Subject: [PATCH] =?UTF-8?q?[Fix]=20=E4=BF=AE=E5=A4=8D=E5=8F=AF=E8=83=BD?=
 =?UTF-8?q?=E7=9A=84None=E5=AD=97=E6=AE=B5?=
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row.get的default value仅在字段不存在时生效。
当tushare返回的值中存在oi字段，但值为None时，依旧会取None值，从而导致后续的存入数据库失败
---
 vnpy_tushare/tushare_datafeed.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/vnpy_tushare/tushare_datafeed.py b/vnpy_tushare/tushare_datafeed.py
index 21e029c..f429459 100644
--- a/vnpy_tushare/tushare_datafeed.py
+++ b/vnpy_tushare/tushare_datafeed.py
@@ -246,8 +246,8 @@ def query_bar_history(self, req: HistoryRequest) -> Optional[List[BarData]]:
                     low_price=round_to(row["low"], 0.000001),
                     close_price=round_to(row["close"], 0.000001),
                     volume=row["vol"],
-                    turnover=row.get("amount", 0),
-                    open_interest=row.get("oi", 0),
+                    turnover=row.get("amount", 0) if row.get("amount", 0) else 0,
+                    open_interest=row.get("oi", 0) if row.get("oi", 0) else 0,
                     gateway_name="TS"
                 )