From 97ee38082cc16a1d670df09e16942054349ae692 Mon Sep 17 00:00:00 2001
From: Sebastian Serth <Sebastian.Serth@hpi.de>
Date: Thu, 6 Oct 2022 00:10:25 +0200
Subject: [PATCH] Handle deleted exercise in FilePolicy

Fixes CODEOCEAN-DZ
---
 app/policies/code_ocean/file_policy.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/policies/code_ocean/file_policy.rb b/app/policies/code_ocean/file_policy.rb
index 450b5968..3ea9e2f6 100644
--- a/app/policies/code_ocean/file_policy.rb
+++ b/app/policies/code_ocean/file_policy.rb
@@ -3,7 +3,7 @@
 module CodeOcean
   class FilePolicy < AdminOrAuthorPolicy
     def author?
-      @user == @record.context.author
+      @user == @record.context&.author
     end
 
     def show?