From 1ca7a3f610b8f247730f5f67a5098cf6b5dc59f5 Mon Sep 17 00:00:00 2001
From: AnthonyDuan <superories@gmail.com>
Date: Sat, 22 Nov 2025 22:33:50 +0800
Subject: [PATCH] =?UTF-8?q?fix(upload):=20DuplicateKey=20=E4=BD=BF?=
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---
 app.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app.py b/app.py
index d8ae298..0b6203a 100644
--- a/app.py
+++ b/app.py
@@ -853,12 +853,12 @@ def upload_file():
         db_entry['enabled'] = True
         pprint.pprint(db_entry)
 
-        # mongoDBにデータをぶち込む（重複IDは上書き）
+        # mongoDBにデータをぶち込む（重複IDは部分更新で上書きし、_id を不変に保つ）
         coll = client['taiko']["songs"]
         try:
             coll.insert_one(db_entry)
         except DuplicateKeyError:
-            coll.replace_one({"id": db_entry["id"]}, db_entry, upsert=True)
+            coll.update_one({"id": db_entry["id"]}, {"$set": db_entry}, upsert=True)
         # キャッシュ削除（/api/songs）
         try:
             app.cache.delete_memoized(route_api_songs)