public function clearAction()
{
if ($this->_isEnabled()) {
$message = '';
$items = Mage::getResourceModel('catalog/product_compare_item_collection');
if (Mage::getSingleton('customer/session')->isLoggedIn()) {
$items->setCustomerId(Mage::getSingleton('customer/session')->getCustomerId());
} elseif ($this->_customerId) {
$items->setCustomerId($this->_customerId);
} else {
$items->setVisitorId(Mage::getSingleton('log/visitor')->getId());
}
try {
$items->clear();
$message = 'The comparison list was cleared.';
Mage::helper('catalog/product_compare')->calculate();
} catch (Mage_Core_Exception $e) {
$message = $e->getMessage();
} catch (Exception $e) {
$message = $this->__('An error occurred while clearing comparison list.');
}
$this->setResponse($message);
} else {
parent::clearAction();
}
}
