From 8b6ce0519899e4d7e467c4df19e2055863a776a6 Mon Sep 17 00:00:00 2001
From: Baoshuo <i@baoshuo.ren>
Date: Sun, 26 Mar 2023 18:52:58 +0800
Subject: [PATCH] fix: 8defcd448fc121fe0b76476377b53f5ba745d9b8

---
 web/app/models/UOJSubmission.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/web/app/models/UOJSubmission.php b/web/app/models/UOJSubmission.php
index 5db1e79..79f5b17 100644
--- a/web/app/models/UOJSubmission.php
+++ b/web/app/models/UOJSubmission.php
@@ -247,7 +247,7 @@ class UOJSubmission {
 			return;
 		}
 
-		if (isset($files)) {
+		if (isset($files) && !empty($files)) {
 			$zip_file = new ZipArchive();
 			$zip_file->open(UOJContext::storagePath() . $submission->getContent('file_name'), ZipArchive::CREATE);
 			$tot_size = 0;