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, 24 insertions, 16 deletions

diff --git a/packages/backend/src/core/UserFollowingService.ts b/packages/backend/src/core/UserFollowingService.ts
index 7d90bc2c08..4d7bfeaf23 100644
--- a/packages/backend/src/core/UserFollowingService.ts
+++ b/packages/backend/src/core/UserFollowingService.ts
@@ -122,22 +122,26 @@ export class UserFollowingService implements OnModuleInit {
 			let autoAccept = false;
 
 			// 鍵アカウントであっても、既にフォローされていた場合はスルー
-			const following = await this.followingsRepository.findOneBy({
-				followerId: follower.id,
-				followeeId: followee.id,
+			const isFollowing = await this.followingsRepository.exist({
+				where: {
+					followerId: follower.id,
+					followeeId: followee.id,
+				},
 			});
-			if (following) {
+			if (isFollowing) {
 				autoAccept = true;
 			}
 
 			// フォローしているユーザーは自動承認オプション
 			if (!autoAccept && (this.userEntityService.isLocalUser(followee) && followeeProfile.autoAcceptFollowed)) {
-				const followed = await this.followingsRepository.findOneBy({
-					followerId: followee.id,
-					followeeId: follower.id,
+				const isFollowed = await this.followingsRepository.exist({
+					where: {
+						followerId: followee.id,
+						followeeId: follower.id,
+					},
 				});
 
-				if (followed) autoAccept = true;
+				if (isFollowed) autoAccept = true;
 			}
 
 			// Automatically accept if the follower is an account who has moved and the locked followee had accepted the old account.
@@ -206,12 +210,14 @@ export class UserFollowingService implements OnModuleInit {
 
 		this.cacheService.userFollowingsCache.refresh(follower.id);
 
-		const req = await this.followRequestsRepository.findOneBy({
-			followeeId: followee.id,
-			followerId: follower.id,
+		const requestExist = await this.followRequestsRepository.exist({
+			where: {
+				followeeId: followee.id,
+				followerId: follower.id,
+			},
 		});
 
-		if (req) {
+		if (requestExist) {
 			await this.followRequestsRepository.delete({
 				followeeId: followee.id,
 				followerId: follower.id,
@@ -505,12 +511,14 @@ export class UserFollowingService implements OnModuleInit {
 			}
 		}
 
-		const request = await this.followRequestsRepository.findOneBy({
-			followeeId: followee.id,
-			followerId: follower.id,
+		const requestExist = await this.followRequestsRepository.exist({
+			where: {
+				followeeId: followee.id,
+				followerId: follower.id,
+			},
 		});
 
-		if (request == null) {
+		if (!requestExist) {
 			throw new IdentifiableError('17447091-ce07-46dd-b331-c1fd4f15b1e7', 'request not found');
 		}