From 4151f0fd83e4a58f65654d34b9989457aebd4c9a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?G=C3=A9ry=20Debongnie?= <ged@odoo.com>
Date: Wed, 8 Oct 2014 15:35:31 +0200
Subject: [PATCH] [FIX] fix a crash in sub kanban views

sub kanban views is sometimes initialized without a $buttons attribute in options.  In that case, it should just ignore it.
---
 addons/web_kanban/static/src/js/kanban.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/addons/web_kanban/static/src/js/kanban.js b/addons/web_kanban/static/src/js/kanban.js
index 0f9b2153c05..62489a30a91 100644
--- a/addons/web_kanban/static/src/js/kanban.js
+++ b/addons/web_kanban/static/src/js/kanban.js
@@ -43,7 +43,7 @@ instance.web_kanban.KanbanView = instance.web.View.extend({
         this.currently_dragging = {};
         this.limit = options.limit || 40;
         this.add_group_mutex = new $.Mutex();
-        if (!this.options.$buttons.length) {
+        if (!this.options.$buttons || !this.options.$buttons.length) {
             this.options.$buttons = false;
         }
     },