From ae92378689e73895c3a250419a1ad874b25e40e3 Mon Sep 17 00:00:00 2001
From: tamaina <tamaina@hotmail.co.jp>
Date: Wed, 13 Jul 2022 21:07:49 +0900
Subject: [PATCH] fix(sw, notification): Don't issue an event if there is no
 affect (#8979)

* test

* ]v]
---
 packages/backend/src/server/api/common/read-notification.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/backend/src/server/api/common/read-notification.ts b/packages/backend/src/server/api/common/read-notification.ts
index 17dd8e6f0..cf993ade3 100644
--- a/packages/backend/src/server/api/common/read-notification.ts
+++ b/packages/backend/src/server/api/common/read-notification.ts
@@ -12,13 +12,15 @@ export async function readNotification(
 	if (notificationIds.length === 0) return;
 
 	// Update documents
-	await Notifications.update({
+	const result = await Notifications.update({
 		id: In(notificationIds),
 		isRead: false,
 	}, {
 		isRead: true,
 	});
 
+	if (result.affected === 0) return;
+
 	if (!await Users.getHasUnreadNotification(userId)) return postReadAllNotifications(userId);
 	else return postReadNotifications(userId, notificationIds);
 }