From 48e0db785f03656ee3ba9d7a55b60a7b995d2acb Mon Sep 17 00:00:00 2001
From: Hangzhi Yu <hangzhi@protonmail.com>
Date: Mon, 19 Feb 2024 01:17:56 +0100
Subject: [PATCH] Fix permission checking

---
 aleksis/apps/alsijil/util/predicates.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/aleksis/apps/alsijil/util/predicates.py b/aleksis/apps/alsijil/util/predicates.py
index 0459a96b8..d984fafc0 100644
--- a/aleksis/apps/alsijil/util/predicates.py
+++ b/aleksis/apps/alsijil/util/predicates.py
@@ -312,7 +312,7 @@ def is_lesson_event_teacher(user: User, obj: LessonEvent):
     or a teacher of the course, if the lesson event has one.
     """
     if obj:
-        return obj.course and is_course_teacher(user, obj) or user.person in obj.all_teachers()
+        return obj.course and is_course_teacher(user, obj) or user.person in obj.all_teachers
     return False
 
 
-- 
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