From: Tom Hughes <tom@compton.nu>
Date: Fri, 23 Nov 2012 19:00:51 +0000 (+0000)
Subject: Fall back to the mapnik layer
X-Git-Tag: live~5215
X-Git-Url: https://git.openstreetmap.org/rails.git/commitdiff_plain/8e27c78d3cb2162d963b49e25519b5d213d74730?hp=dc0ada9515da141915763a3187b61174ee3f5015

Fall back to the mapnik layer

If there are no known layers in the layers string, then fall back to
showing the standard mapnik layer.
---

diff --git a/app/assets/javascripts/map.js.erb b/app/assets/javascripts/map.js.erb
index 393e9cae7..9df9ca2d9 100644
--- a/app/assets/javascripts/map.js.erb
+++ b/app/assets/javascripts/map.js.erb
@@ -184,11 +184,16 @@ function getMapLayers() {
 }
 
 function setMapLayers(layerConfig) {
+  var foundLayer = false;
   for (var i = 0; i < layers.length; i++) {
     if (layerConfig.indexOf(layers[i].layerCode) >= 0) {
       map.addLayer(layers[i].layer);
+      foundLayer = true;
     } else {
       map.removeLayer(layers[i].layer);
     }
   }
+  if (!foundLayer) {
+    map.addLayer(layers[0].layer);
+  }
 }