From 94347442196f88e6d80c195fc1eb66c323e9f4f3 Mon Sep 17 00:00:00 2001
From: Yohan Boniface <yohanboniface@free.fr>
Date: Thu, 26 Oct 2023 16:54:43 +0200
Subject: [PATCH] Fix filter data crashing when data contains non string values

It may happen when data comes from an import.

fix #1377
---
 umap/static/umap/js/umap.features.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/umap/static/umap/js/umap.features.js b/umap/static/umap/js/umap.features.js
index 5b3b8f7b..aa7eda67 100644
--- a/umap/static/umap/js/umap.features.js
+++ b/umap/static/umap/js/umap.features.js
@@ -478,8 +478,9 @@ L.U.FeatureMixin = {
 
   matchFilter: function (filter, keys) {
     filter = filter.toLowerCase()
-    for (let i = 0; i < keys.length; i++) {
-      if ((this.properties[keys[i]] || '').toLowerCase().indexOf(filter) !== -1)
+    for (let i = 0, value; i < keys.length; i++) {
+      value = (this.properties[keys[i]] || '') + ''
+      if (value.toLowerCase().indexOf(filter) !== -1)
         return true
     }
     return false