From c3c865f0748209fff9bec2c2269467927f62edc6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mateusz=20Gruszczy=C5=84ski?= <gru@macbook.net.r.local>
Date: Thu, 31 Jul 2025 22:06:19 +0200
Subject: [PATCH] fix w js

---
 static/js/user_expenses.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/static/js/user_expenses.js b/static/js/user_expenses.js
index dd4b631..f855eb1 100644
--- a/static/js/user_expenses.js
+++ b/static/js/user_expenses.js
@@ -44,8 +44,9 @@ document.addEventListener("DOMContentLoaded", function () {
                                         position: 'top',
                                         labels: {
                                             filter: function(legendItem, chart) {
-                                                const data = chart.data.datasets[legendItem.datasetIndex].data;
-                                                return data.some(value => value !== 0);
+                                                const dataset = chart.data.datasets[legendItem.datasetIndex];
+                                                if (!dataset || !Array.isArray(dataset.data)) return false;
+                                                return dataset.data.some(val => !!val);
                                             }
                                         }
                                     }