SERVER-6947 Do not create undefined fields in db.createCollection

1 files changed, 5 insertions, 1 deletions

diff --git a/src/mongo/shell/db.js b/src/mongo/shell/db.js
index c343f9b6615..a41172ecf1e 100644
--- a/src/mongo/shell/db.js
+++ b/src/mongo/shell/db.js
@@ -269,11 +269,15 @@ DB.prototype.auth = function() {
 */
 DB.prototype.createCollection = function(name, opt) {
     var options = opt || {};
-    var cmd = { create: name, capped: options.capped, size: options.size };
+    var cmd = { create: name };
     if (options.max != undefined)
         cmd.max = options.max;
     if (options.autoIndexId != undefined)
         cmd.autoIndexId = options.autoIndexId;
+    if (options.capped != undefined)
+        cmd.capped = options.capped;
+    if (options.size != undefined)
+        cmd.size = options.size;
     var res = this._dbCommand(cmd);
     return res;
 }