Revert one check, remove another.

1 files changed, 18 insertions, 16 deletions

diff --git a/web/app/view/MapMarkerController.js b/web/app/view/MapMarkerController.js
index bda206e..97e7592 100644
--- a/web/app/view/MapMarkerController.js
+++ b/web/app/view/MapMarkerController.js
@@ -202,24 +202,26 @@ Ext.define('Traccar.view.MapMarkerController', {
 
         this.addReportMarkers(store, data);
 
-        this.reportRoute = [];
-        for (i = 0; i < data.length; i++) {
-            position = data[i];
-            point = ol.proj.fromLonLat([
-                position.get('longitude'),
-                position.get('latitude')
-            ]);
-            if (i === 0 || data[i].get('deviceId') !== data[i - 1].get('deviceId')) {
-                this.reportRoute.push(new ol.Feature({
-                    geometry: new ol.geom.LineString([])
-                }));
-                this.reportRoute[this.reportRoute.length - 1].setStyle(this.getRouteStyle(data[i].get('deviceId')));
-                this.getView().getRouteSource().addFeature(this.reportRoute[this.reportRoute.length - 1]);
+        if (data.length > 0) {
+            this.reportRoute = [];
+            for (i = 0; i < data.length; i++) {
+                position = data[i];
+                point = ol.proj.fromLonLat([
+                    position.get('longitude'),
+                    position.get('latitude')
+                ]);
+                if (i === 0 || data[i].get('deviceId') !== data[i - 1].get('deviceId')) {
+                    this.reportRoute.push(new ol.Feature({
+                        geometry: new ol.geom.LineString([])
+                    }));
+                    this.reportRoute[this.reportRoute.length - 1].setStyle(this.getRouteStyle(data[i].get('deviceId')));
+                    this.getView().getRouteSource().addFeature(this.reportRoute[this.reportRoute.length - 1]);
+                }
+                this.reportRoute[this.reportRoute.length - 1].getGeometry().appendCoordinate(point);
             }
-            this.reportRoute[this.reportRoute.length - 1].getGeometry().appendCoordinate(point);
-        }
 
-        this.getView().getMapView().fit(this.reportRoute[0].getGeometry(), this.getView().getMap().getSize());
+            this.getView().getMapView().fit(this.reportRoute[0].getGeometry(), this.getView().getMap().getSize());
+        }
     },
 
     addReportMarkers: function (store, data) {