From b1e5c77a5643b3d130c16b11d4b6402c33af085a Mon Sep 17 00:00:00 2001
From: undefined <i@undefined.moe>
Date: Sun, 27 Nov 2022 12:57:38 +0800
Subject: [PATCH] core: fix contest attended check

---
 packages/hydrooj/src/handler/record.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/hydrooj/src/handler/record.ts b/packages/hydrooj/src/handler/record.ts
index e34d63b5..6a399224 100644
--- a/packages/hydrooj/src/handler/record.ts
+++ b/packages/hydrooj/src/handler/record.ts
@@ -170,7 +170,7 @@ class RecordDetailHandler extends ContestDetailBaseHandler {
             if (this.tdoc.allowViewCode && contest.isDone(this.tdoc)) {
                 canViewCode ||= tsdoc?.attend;
             }
-            if (!tsdoc.attend && !problem.canViewBy(pdoc, this.user)) throw new PermissionError(PERM.PERM_VIEW_PROBLEM_HIDDEN);
+            if (!tsdoc?.attend && !problem.canViewBy(pdoc, this.user)) throw new PermissionError(PERM.PERM_VIEW_PROBLEM_HIDDEN);
         } else if (!problem.canViewBy(pdoc, this.user)) throw new PermissionError(PERM.PERM_VIEW_PROBLEM_HIDDEN);
         if (!canViewCode) {
             rdoc.code = '';