From 9ddccacce506f95ea76cd033a1055cff6700aafb Mon Sep 17 00:00:00 2001
From: Diego Sampaio <chinello@gmail.com>
Date: Thu, 27 Aug 2015 15:13:31 -0300
Subject: [PATCH] remove _hidden index (mongo 2.4 compatibility)

---
 server/startup/migrations/v16.coffee | 6 ++++++
 1 file changed, 6 insertions(+)
 create mode 100644 server/startup/migrations/v16.coffee

diff --git a/server/startup/migrations/v16.coffee b/server/startup/migrations/v16.coffee
new file mode 100644
index 00000000000..2315bd2057f
--- /dev/null
+++ b/server/startup/migrations/v16.coffee
@@ -0,0 +1,6 @@
+Meteor.startup ->
+	Migrations.add
+		version: 16
+		up: ->
+			rawMessage = ChatMessage.rawCollection()
+			Meteor.wrapAsync(rawMessage.dropIndex, rawMessage)({ _hidden: 1 })