/**
* Singleton method for memcache servers
*
* The Servers array should contain arrays of servers (IP and Port)
*
* @param array $servers
* @return memcahed instance
*/
public static function getMem()
{
$servers = self::getServers();
if (!empty($servers)) {
if (self::$objMem == NULL) {
self::$objMem = new Memcache();
// connect to the memcache server(s)
foreach ($servers as $cache) {
self::$objMem->addServer($cache['ip'], (int) $cache['port']);
}
}
}
return self::$objMem;
}
/**
* Method to execute a query against the database
*
* @param string $stmt the SQL query string
* @return db _result|FALSE a PEAR::DB_Result object, or FALSE on failure
* @deprecated see execute()
* @access public
*/
public function query($stmt)
{
if ($this->objMemcache == TRUE) {
if (chisimbacache::getMem()->get(md5($this->cachePrefix . $stmt))) {
$cache = chisimbacache::getMem()->get(md5($this->cachePrefix . $stmt));
$ret = unserialize($cache);
} else {
if ($this->debug == TRUE) {
log_debug($stmt);
}
$ret = $this->_queryAll($stmt);
if (PEAR::isError($ret)) {
$ret = FALSE;
}
chisimbacache::getMem()->set(md5($this->cachePrefix . $stmt), serialize($ret), MEMCACHE_COMPRESSED, $this->cacheTTL);
}
} elseif ($this->objAPC == TRUE) {
$ret = apc_fetch($this->cachePrefix . $stmt);
if ($ret == FALSE) {
$ret = $this->_queryAll($stmt);
if (PEAR::isError($ret)) {
$ret = FALSE;
}
apc_store($this->cachePrefix . $stmt, $ret, $this->cacheTTL);
}
} else {
if ($this->debug == TRUE) {
log_debug($stmt);
}
$ret = $this->_queryAll($stmt);
if (PEAR::isError($ret)) {
$ret = FALSE;
}
}
return $ret;
}
/**
* Stores a new key/value pair in the cache. If the key already exists, the value will be overwritten.
*
* @access public
* @param string $key The key.
* @param string $value The new value.
*/
public function __set($key, $value)
{
// Prepend the site name to the key.
$key = $this->objAltConfig->getSiteName() . $key;
// Update the local cache.
$this->cache[$key] = $value;
// Update the external cache.
if ($this->memcache) {
$value = serialize($value);
chisimbacache::getMem()->set($key, $value);
} elseif ($this->apc) {
apc_store($key, $value);
}
}
public function getGroupInfo($groupid)
{
if ($this->objMemcache == TRUE) {
if (chisimbacache::getMem()->get(md5($this->cachePrefix . getGroupInfo . $groupid))) {
$cache = chisimbacache::getMem()->get(md5($this->cachePrefix . getGroupInfo . $groupid));
$ret = unserialize($cache);
} else {
$ret = $this->objLuAdmin->perm->getGroups(array('filters' => array('group_id' => $groupid)));
chisimbacache::getMem()->set(md5($this->cachePrefix . getGroupInfo . $groupid), serialize($ret), MEMCACHE_COMPRESSED, $this->cacheTTL);
}
} elseif ($this->objAPC == TRUE) {
$ret = apc_fetch($this->cachePrefix . getGroupInfo . $groupid);
if ($ret == FALSE) {
$ret = $this->objLuAdmin->perm->getGroups(array('filters' => array('group_id' => $groupid)));
apc_store($this->cachePrefix . getGroupInfo . $groupid, $ret, $this->cacheTTL);
}
} else {
$ret = $this->objLuAdmin->perm->getGroups(array('filters' => array('group_id' => $groupid)));
}
return $ret;
}