refactor(backend): 存在確認の`findOneBy`を`exist`に置き換え (#11224)

* refactor(backend): 存在確認の`findOneBy`を`exist`に置き換え

* cleanup

1 files changed, 8 insertions, 6 deletions

diff --git a/packages/backend/src/core/NoteReadService.ts b/packages/backend/src/core/NoteReadService.ts
index b84591e26d..52e9bd369a 100644
--- a/packages/backend/src/core/NoteReadService.ts
+++ b/packages/backend/src/core/NoteReadService.ts
@@ -43,11 +43,13 @@ export class NoteReadService implements OnApplicationShutdown {
 		//#endregion
 
 		// スレッドミュート
-		const threadMute = await this.noteThreadMutingsRepository.findOneBy({
-			userId: userId,
-			threadId: note.threadId ?? note.id,
+		const isThreadMuted = await this.noteThreadMutingsRepository.exist({
+			where: {
+				userId: userId,
+				threadId: note.threadId ?? note.id,
+			},
 		});
-		if (threadMute) return;
+		if (isThreadMuted) return;
 
 		const unread = {
 			id: this.idService.genId(),
@@ -62,9 +64,9 @@ export class NoteReadService implements OnApplicationShutdown {
 
 		// 2秒経っても既読にならなかったら「未読の投稿がありますよ」イベントを発行する
 		setTimeout(2000, 'unread note', { signal: this.#shutdownController.signal }).then(async () => {
-			const exist = await this.noteUnreadsRepository.findOneBy({ id: unread.id });
+			const exist = await this.noteUnreadsRepository.exist({ where: { id: unread.id } });
 
-			if (exist == null) return;
+			if (!exist) return;
 
 			if (params.isMentioned) {
 				this.globalEventService.publishMainStream(userId, 'unreadMention', note.id);