From e4e668b32753b31d7162b979cd4e6d1a3a280b9f Mon Sep 17 00:00:00 2001
From: syuilo <syuilotan@yahoo.co.jp>
Date: Sun, 23 Sep 2018 16:05:26 +0900
Subject: [PATCH] Improve performance

---
 src/services/note/read.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/services/note/read.ts b/src/services/note/read.ts
index 46918bc38c..8622597bc0 100644
--- a/src/services/note/read.ts
+++ b/src/services/note/read.ts
@@ -20,11 +20,15 @@ export default (
 		: new mongo.ObjectID(note);
 
 	// Remove document
-	await NoteUnread.remove({
+	const res = await NoteUnread.remove({
 		userId: userId,
 		noteId: noteId
 	});
 
+	if (res.deletedCount == 0) {
+		return;
+	}
+
 	const count1 = await NoteUnread
 		.count({
 			userId: userId,