/**
* Create and return a hash for the download link.
*
* @return string The requested hash
*/
public function serialz()
{
// load the order item and the selectd package options
$orderItem = $this->_linkPurchased->getOrderItem();
$productOptions = $orderItem->getProductOptions();
// initialize the subscription runtime
$now = Zend_Date::now();
$then = Zend_Date::now()->addMonth(1);
// check if custom options are available
if (!array_key_exists('options', $productOptions)) {
$then->addMonth($this->_getDefaultSubscription());
} else {
// iterate over the package's custom options
foreach ($productOptions['options'] as $value) {
// load the select option itself
$option = Mage::getModel('catalog/product_option')->load($value['option_id']);
// load the selected option value
$value = $option->getValueInstance()->load($value['option_value']);
// initialize the subscription model
$subscription = Mage::getModel('channel/subscription_type_option');
// try to load the subscription
$subscription->loadBySku($value->getSku());
// check if a valid subscription was found
if ($subscription->getId() > 0) {
// if a subscription was found, use the subscription runtime
$then->addMonth($subscription->getValue() - 1);
} else {
// if not, set the default subscription
$then->addMonth($this->_getDefaultSubscription());
}
}
}
// intialize the serialz keys
$components['_customerId'] = $this->_number + $this->_getCustomerId();
$components['_productId'] = $this->_number + $this->_getProductId();
$components['_validFrom'] = $now->toString('yyyyMMdd');
$components['_validThru'] = $then->toString('yyyyMMdd');
// initialize and encrypt the serialz
$serialCrypted = $this->_encryptor->encrypt(implode('', $components));
// make a more 'look-a-like' serialz ;)
for ($i = 0; $i < 64; $i = $i + 8) {
$parts[] = strtoupper(substr($serialCrypted, $i, 8));
}
// return the serialz
return $serialz = implode("-", $parts);
}
