Fix error when activeCell is not defined

Thomas Bruederli

2014-07-09 5a28385e73afbf799ba83059e5a1b88bdd674b5c

 plugins/database_attachments/database_attachments.php

@@ -126,8 +126,10 @@
     */
    function cleanup($args)
    {
        $cache = $this->get_cache();
        $cache->remove($args['group'], true);
        // check if cache object exist, it may be empty on session_destroy (#1489726)
        if ($cache = $this->get_cache()) {
            $cache->remove($args['group'], true);
        }
    }

    /**