From 7cbc4746e7db4d4a62c73a3d0563eb918107d0f1 Mon Sep 17 00:00:00 2001
From: Spencer Alger <spencer@spenceralger.com>
Date: Fri, 9 Jan 2015 12:28:08 -0700
Subject: [PATCH] [aggConfigs] harden #getResponseAggById()

---
 src/kibana/components/vis/_agg_configs.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/kibana/components/vis/_agg_configs.js b/src/kibana/components/vis/_agg_configs.js
index a1069849a24c0f..51c4ae9e08b006 100644
--- a/src/kibana/components/vis/_agg_configs.js
+++ b/src/kibana/components/vis/_agg_configs.js
@@ -133,9 +133,11 @@ define(function (require) {
      * @return {AggConfig}
      */
     AggConfigs.prototype.getResponseAggById = function (id) {
+      id = String(id);
       var reqAgg = _.find(this.getRequestAggs(), function (agg) {
-        return id.substr(0, agg.id.length) === agg.id;
+        return id.substr(0, String(agg.id).length) === agg.id;
       });
+      if (!reqAgg) return;
       return _.find(reqAgg.getResponseAggs(), { id: id });
     };