public function __construct($app)
{
$this->months = $app->getRequest()->getQuery('months', 0);
$this->procedures = $app->getRequest()->getQuery('procedures', array());
//if they selected all set to empty array to ignore procedure check in query
if (in_array('all', $this->procedures)) {
$this->procedures = array();
}
parent::__construct($app);
}