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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Feed\PubSubHubbub\Model;
use DateInterval;
use DateTime;
use Zend\Feed\PubSubHubbub;
class Subscription extends AbstractModel implements SubscriptionPersistenceInterface
{
/**
* Common DateTime object to assist with unit testing
*
* @var DateTime
*/
protected $now;
/**
* Save subscription to RDMBS
*
* @param array $data
* @return bool
* @throws PubSubHubbub\Exception\InvalidArgumentException
*/
public function setSubscription(array $data)
{
if (!isset($data['id'])) {
throw new PubSubHubbub\Exception\InvalidArgumentException(
'ID must be set before attempting a save'
);
}
$result = $this->db->select(array('id' => $data['id']));
if ($result && (0 < count($result))) {
$data['created_time'] = $result->current()->created_time;
$now = $this->getNow();
if (array_key_exists('lease_seconds', $data)
&& $data['lease_seconds']
) {
$data['expiration_time'] = $now->add(new DateInterval('PT' . $data['lease_seconds'] . 'S'))
->format('Y-m-d H:i:s');
}
$this->db->update(
$data,
array('id' => $data['id'])
);
return false;
}
$this->db->insert($data);
return true;
}
/**
* Get subscription by ID/key
*
* @param string $key
* @return array
* @throws PubSubHubbub\Exception\InvalidArgumentException
*/
public function getSubscription($key)
{
if (empty($key) || !is_string($key)) {
throw new PubSubHubbub\Exception\InvalidArgumentException('Invalid parameter "key"'
.' of "' . $key . '" must be a non-empty string');
}
$result = $this->db->select(array('id' => $key));
if (count($result)) {
return $result->current()->getArrayCopy();
}
return false;
}
/**
* Determine if a subscription matching the key exists
*
* @param string $key
* @return bool
* @throws PubSubHubbub\Exception\InvalidArgumentException
*/
public function hasSubscription($key)
{
if (empty($key) || !is_string($key)) {
throw new PubSubHubbub\Exception\InvalidArgumentException('Invalid parameter "key"'
.' of "' . $key . '" must be a non-empty string');
}
$result = $this->db->select(array('id' => $key));
if (count($result)) {
return true;
}
return false;
}
/**
* Delete a subscription
*
* @param string $key
* @return bool
*/
public function deleteSubscription($key)
{
$result = $this->db->select(array('id' => $key));
if (count($result)) {
$this->db->delete(
array('id' => $key)
);
return true;
}
return false;
}
/**
* Get a new DateTime or the one injected for testing
*
* @return DateTime
*/
public function getNow()
{
if (null === $this->now) {
return new DateTime();
}
return $this->now;
}
/**
* Set a DateTime instance for assisting with unit testing
*
* @param DateTime $now
* @return Subscription
*/
public function setNow(DateTime $now)
{
$this->now = $now;
return $this;
}
}
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