diff -r 6e0272a9b3ca -r 848e4a5ad4d9 cms/app-client/app/routes/application.js
--- a/cms/app-client/app/routes/application.js	Thu Dec 31 10:22:55 2015 +0100
+++ b/cms/app-client/app/routes/application.js	Thu Jan 07 17:46:50 2016 +0100
@@ -1,6 +1,23 @@
 import Ember from 'ember';
 
 export default Ember.Route.extend({
+  serializeQueryParam: function(value, urlKey, defaultValueType) {
+    if (urlKey === 'date') {
+      return value;
+    }
+    return '' + value;
+  },
+  deserializeQueryParam: function(value, urlKey, defaultValueType) {
+    if (urlKey === 'date') {
+      var arr = [];
+      for (var i = 0; i < value.length; i++) {
+        arr.push(parseInt(value[i]));
+      }
+      return arr;
+    }
+
+    return value;
+  },
   model() {
     return this.store.findAll('sound');
   },