From 28ecc4d1380487831485b7119b7258526a574fe5 Mon Sep 17 00:00:00 2001
From: Sakurasan <26715255+Sakurasan@users.noreply.github.com>
Date: Fri, 24 Jul 2026 18:49:48 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20fetch=5Ffund=5Fflow=5Fdaykline=20?=
 =?UTF-8?q?=E5=A2=9E=E5=8A=A0=20rc=20=E6=A0=A1=E9=AA=8C=E5=92=8C=20data=20?=
 =?UTF-8?q?=E7=A9=BA=E5=80=BC=E4=BF=9D=E6=8A=A4?=
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东方财富 daykline/get 接口返回 rc=100(data=null) 时无保护处理：
- 增加 result 类型检查、rc 状态校验、data 空值判断
- 避免 None.get('klines') 抛 AttributeError

Co-Authored-By: Claude <noreply@anthropic.com>
---
 backend/services/eastmoney.py | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/backend/services/eastmoney.py b/backend/services/eastmoney.py
index 6271215..8fdcbd4 100644
--- a/backend/services/eastmoney.py
+++ b/backend/services/eastmoney.py
@@ -1074,7 +1074,20 @@ async def fetch_fund_flow_daykline(code: str, days: int) -> Optional[list[dict]]
                         continue
                     return None
                 result = resp.json()
-                klines = result.get("data", {}).get("klines", [])
+                if not isinstance(result, dict):
+                    if attempt == 0:
+                        continue
+                    return None
+                if result.get("rc", -1) != 0:
+                    if attempt == 0:
+                        continue
+                    return None
+                data = result.get("data")
+                if not data or not isinstance(data, dict):
+                    if attempt == 0:
+                        continue
+                    return None
+                klines = data.get("klines", [])
                 if not klines:
                     if attempt == 0:
                         continue