From 74117ccf5b0ef9e1a1f875e479443c10b89bae52 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mateusz=20Gruszczy=C5=84ski?= <gru@macbook.net.r.local>
Date: Sun, 14 Sep 2025 21:57:23 +0200
Subject: [PATCH] walidacja formularza

---
 app.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/app.py b/app.py
index b658dda..54324e3 100644
--- a/app.py
+++ b/app.py
@@ -3571,6 +3571,10 @@ def admin_lists_access(list_id=None):
             if not u:
                 flash("Użytkownik nie istnieje.", "danger")
                 return redirect(request.url)
+            if u.id == l.owner_id:
+                flash("Nie można nadawać uprawnień właścicielowi listy.", "danger")
+                return redirect(request.url)
+
             exists = (
                 db.session.query(ListPermission.id)
                 .filter(ListPermission.list_id == l.id, ListPermission.user_id == u.id)