From fe47299d6cc02a4e43a1d2f3a788897be8a6f5ce Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Sat, 2 Feb 2019 12:55:29 -0800
Subject: Fix openlayers upgrade issues (fix #724)

---
 web/app/view/map/GeofenceMap.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'web/app/view/map/GeofenceMap.js')

diff --git a/web/app/view/map/GeofenceMap.js b/web/app/view/map/GeofenceMap.js
index 6b06ae9..8cef574 100644
--- a/web/app/view/map/GeofenceMap.js
+++ b/web/app/view/map/GeofenceMap.js
@@ -105,13 +105,14 @@ Ext.define('Traccar.view.map.GeofenceMap', {
     },
 
     addInteraction: function (type) {
+        var self = this;
         this.draw = new ol.interaction.Draw({
             features: this.features,
             type: type
         });
         this.draw.on('drawstart', function () {
-            this.features.clear();
-        }, this);
+            self.features.clear();
+        });
         this.map.addInteraction(this.draw);
     },
 
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