Your IP : 10.10.0.253
<?php
/**
* JComments - Joomla Comment System
*
* @version 3.0
* @package JComments
* @author Sergey M. Litvinov (smart@joomlatune.ru)
* @copyright (C) 2006-2013 by Sergey M. Litvinov (http://www.joomlatune.ru)
* @license GNU/GPL: http://www.gnu.org/copyleft/gpl.html
*/
defined('_JEXEC') or die;
class JCommentsSubscriptionManager
{
/**
* An array of errors
*
* @var array of error messages
*/
var $_errors = null;
function JCommentsSubscriptionManager()
{
$this->_errors = array();
}
/**
* Returns a reference to a subscription manager object,
* only creating it if it doesn't already exist.
*
* @return JCommentsSubscriptionManager A JCommentsSubscriptionManager object
*/
public static function getInstance()
{
static $instance = null;
if (!is_object($instance)) {
$instance = new JCommentsSubscriptionManager();
}
return $instance;
}
/**
* Subscribes user for new comments notifications for an object
*
* @param int $object_id The object identifier
* @param string $object_group The object group (component name)
* @param int $userid The registered user identifier
* @param string $email The user email (for guests only)
* @param string $name The user name (for guests only)
* @param string $lang The user language
* @return boolean True on success, false otherwise.
*/
function subscribe($object_id, $object_group, $userid, $email = '', $name = '', $lang = '')
{
$object_id = (int)$object_id;
$object_group = trim($object_group);
$userid = (int)$userid;
$result = false;
if ($lang == '') {
$lang = JCommentsMultilingual::getLanguage();
}
$db = JFactory::getDbo();
if ($userid != 0) {
$user = JFactory::getUser($userid);
$name = $user->name;
$email = $user->email;
unset($user);
}
$query = $db->getQuery(true);
$query->select('*');
$query->from($db->quoteName('#__jcomments_subscriptions'));
$query->where($db->quoteName('object_id') . ' = ' . (int)$object_id);
$query->where($db->quoteName('object_group') . ' = ' . $db->Quote($object_group));
$query->where($db->quoteName('email') . ' = ' . $db->Quote($email));
if (JCommentsMultilingual::isEnabled()) {
$query->where($db->quoteName('lang') . ' = ' . $db->Quote(JCommentsMultilingual::getLanguage()));
}
$db->setQuery($query);
$rows = $db->loadObjectList();
JTable::addIncludePath(JCOMMENTS_TABLES);
if (count($rows) == 0) {
$subscription = JTable::getInstance('Subscription', 'JCommentsTable');
$subscription->object_id = $object_id;
$subscription->object_group = $object_group;
$subscription->name = $name;
$subscription->email = $email;
$subscription->userid = $userid;
$subscription->lang = $lang;
$subscription->published = 1;
$subscription->store();
$result = true;
} else {
// if current user is registered, but already exists subscription
// on same email by guest - update subscription data
if ($userid > 0 && $rows[0]->userid == 0) {
$subscription = JTable::getInstance('Subscription', 'JCommentsTable');
$subscription->id = $rows[0]->id;
$subscription->name = $name;
$subscription->email = $email;
$subscription->userid = $userid;
$subscription->lang = $lang;
$subscription->published = 1;
$subscription->store();
$result = true;
} else {
$this->_errors[] = JText::_('ERROR_ALREADY_SUBSCRIBED');
}
}
if ($result) {
$cache = JFactory::getCache('com_jcomments_subscriptions_' . strtolower($object_group));
$cache->clean();
}
return $result;
}
/**
* Unsubscribe guest from new comments notifications by subscription hash
*
* @param string $hash The secret hash value of subscription
* @return boolean True on success, false otherwise.
*/
function unsubscribeByHash($hash)
{
if (!empty($hash)) {
$subscription = $this->getSubscriptionByHash($hash);
if ($subscription !== null) {
$db = JFactory::getDbo();
$query = $db->getQuery(true);
$query->delete($db->quoteName('#__jcomments_subscriptions'));
$query->where($db->quoteName('hash') . ' = ' . $db->Quote($hash));
$db->setQuery($query);
$db->execute();
$cache = JFactory::getCache('com_jcomments_subscriptions_' . strtolower($subscription->object_group));
$cache->clean();
return true;
}
}
return false;
}
/**
* Unsubscribe registered user from new comments notifications for an object
*
* @param int $object_id The object identifier
* @param string $object_group The object group (component name)
* @param int $userid The registered user identifier
* @return boolean True on success, false otherwise.
*/
function unsubscribe($object_id, $object_group, $userid)
{
if ($userid != 0) {
$db = JFactory::getDbo();
$query = $db->getQuery(true);
$query->delete($db->quoteName('#__jcomments_subscriptions'));
$query->where($db->quoteName('object_id') . ' = ' . (int)$object_id);
$query->where($db->quoteName('object_group') . ' = ' . $db->Quote($object_group));
$query->where($db->quoteName('userid') . ' = ' . (int)$userid);
if (JCommentsMultilingual::isEnabled()) {
$query->where($db->quoteName('lang') . ' = ' . $db->Quote(JCommentsMultilingual::getLanguage()));
}
$db->setQuery($query);
$db->execute();
$cache = JFactory::getCache('com_jcomments_subscriptions_' . strtolower($object_group));
$cache->clean();
return true;
}
return false;
}
function getSubscriptionByHash($hash)
{
$subscription = null;
if (!empty($hash)) {
$db = JFactory::getDbo();
$query = $db->getQuery(true);
$query->select('*');
$query->from($db->quoteName('#__jcomments_subscriptions'));
$query->where($db->quoteName('hash') . ' = ' . $db->Quote($hash));
$db->setQuery($query);
$subscription = $db->loadObject();
}
return $subscription;
}
/**
* Checks if given user is subscribed to new comments notifications for an object
*
* @param int $object_id The object identifier
* @param string $object_group The object group (component name)
* @param int $userid The registered user identifier
* @param string $email The user email (for guests only)
* @param string $language The object language
* @return int
*/
function isSubscribed($object_id, $object_group, $userid, $email = '', $language = '')
{
static $data = null;
$key = $object_id . $object_group . $userid . $email . $language;
if (!isset($data[$key])) {
$cache = JFactory::getCache('com_jcomments_subscriptions_' . strtolower($object_group), 'callback');
$data[$key] = $cache->get(array($this, '_isSubscribed'), array($object_id, $object_group, $userid, $email,
$language));
}
return $data[$key];
}
/**
* Return an array of errors messages
*
* @return Array The array of error messages
*/
function getErrors()
{
return $this->_errors;
}
function _isSubscribed($object_id, $object_group, $userid, $email = '', $language = '')
{
if (empty($language)) {
$language = JCommentsMultilingual::getLanguage();
}
$db = JFactory::getDbo();
$query = $db->getQuery(true);
$query->select('COUNT(*)');
$query->from($db->quoteName('#__jcomments_subscriptions'));
$query->where($db->quoteName('object_id') . ' = ' . (int)$object_id);
$query->where($db->quoteName('object_group') . ' = ' . $db->Quote($object_group));
$query->where($db->quoteName('userid') . ' = ' . (int)$userid);
if ($userid == 0) {
$query->where($db->quoteName('email') . ' = ' . $db->Quote($email));
}
if (JCommentsMultilingual::isEnabled()) {
$query->where($db->quoteName('lang') . ' = ' . $db->Quote($language));
}
$db->setQuery($query);
$count = $db->loadResult();
return ($count > 0 ? 1 : 0);
}
}