From 8dba73549d4dc4afbebb5abf229e112382e3a5b2 Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <bruederli@kolabsys.com>
Date: Tue, 3 Feb 2015 13:16:24 +0100
Subject: [PATCH] Check new validity flag

---
 plugins/calendar/drivers/kolab/kolab_calendar.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugins/calendar/drivers/kolab/kolab_calendar.php b/plugins/calendar/drivers/kolab/kolab_calendar.php
index d10126a6..9e3ecdfd 100644
--- a/plugins/calendar/drivers/kolab/kolab_calendar.php
+++ b/plugins/calendar/drivers/kolab/kolab_calendar.php
@@ -76,7 +76,7 @@ class kolab_calendar extends kolab_storage_folder_api
 
     // fetch objects from the given IMAP folder
     $this->storage = kolab_storage::get_folder($this->name);
-    $this->ready = $this->storage && !PEAR::isError($this->storage) && $this->storage->type !== null;
+    $this->ready = $this->storage && $this->storage->valid;
 
     // Set readonly and alarms flags according to folder permissions
     if ($this->ready) {