From 0b953f5fae33310ee276486834e113886c356f17 Mon Sep 17 00:00:00 2001
From: Johan Euphrosine <proppy@google.com>
Date: Wed, 9 Jul 2014 04:16:09 -0700
Subject: [PATCH] index: guard mutation result auto-insert-id

---
 lib/datastore/index.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/datastore/index.js b/lib/datastore/index.js
index 84164f196e5..68c21e6b6d7 100644
--- a/lib/datastore/index.js
+++ b/lib/datastore/index.js
@@ -195,9 +195,9 @@ Transaction.prototype.saveAll = function(keys, objs, callback) {
     if (err || !resp) {
       return callback(err);
     }
-    var keys = [], i = 0;
-    resp.mutationResult.insertAutoIdKeys.forEach(function(item) {
-      keys[i++] = entity.keyFromKeyProto(item);
+    var keys = [];
+    resp.mutationResult.insertAutoIdKeys && resp.mutationResult.insertAutoIdKeys.forEach(function(item) {
+      keys.push(entity.keyFromKeyProto(item));
     });
     callback(null, keys);
   });