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<?php
/**
* Piwik - Open source web analytics
*
* @link http://piwik.org
* @license http://www.gnu.org/licenses/gpl-3.0.html Gpl v3 or later
* @version $Id$
*
* @category Piwik
* @package Piwik
*/
/**
* @package Piwik
* @subpackage Piwik_Db
*/
class Piwik_Db_Adapter
{
/**
* Create adapter
*
* @param string $adapterName database adapter name
* @param array $dbInfos database connection info
* @return mixed (Piwik_Db_Adapter_Mysqli, Piwik_Db_Adapter_Pdo_Mysql, etc)
*/
public static function factory($adapterName, & $dbInfos)
{
if($dbInfos['port'][0] == '/')
{
$dbInfos['unix_socket'] = $dbInfos['port'];
unset($dbInfos['host']);
unset($dbInfos['port']);
}
// not used by Zend Framework
unset($dbInfos['tables_prefix']);
unset($dbInfos['adapter']);
unset($dbInfos['schema']);
$className = self::getAdapterClassName($adapterName);
$adapter = new $className($dbInfos);
$adapter->getConnection();
Zend_Db_Table::setDefaultAdapter($adapter);
// we don't want the connection information to appear in the logs
$adapter->resetConfig();
return $adapter;
}
/**
* Get adapter class name
*
* @param string $adapterName
* @return string
*/
private static function getAdapterClassName($adapterName)
{
return 'Piwik_Db_Adapter_' . str_replace(' ', '_', ucwords(str_replace('_', ' ', strtolower($adapterName))));
}
/**
* Get default port for named adapter
*
* @param string $adapterName
* @return int
*/
public static function getDefaultPortForAdapter($adapterName)
{
$className = self::getAdapterClassName($adapterName);
return call_user_func(array($className, 'getDefaultPort'));
}
/**
* Get list of adapters
*
* @return array
*/
public static function getAdapters()
{
static $adapterNames = array(
// currently supported by Piwik
'Pdo_Mysql',
'Mysqli',
// other adapters supported by Zend_Db
// 'Pdo_Pgsql',
// 'Pdo_Mssql',
// 'Sqlsrv',
// 'Pdo_Ibm',
// 'Db2',
// 'Pdo_Oci',
// 'Oracle',
);
$adapters = array();
foreach($adapterNames as $adapterName)
{
$className = 'Piwik_Db_Adapter_'.$adapterName;
if(call_user_func(array($className, 'isEnabled')))
{
$adapters[strtoupper($adapterName)] = call_user_func(array($className, 'getDefaultPort'));
}
}
return $adapters;
}
}
/**
* @package Piwik
* @subpackage Piwik_Db
*/
interface Piwik_Db_Adapter_Interface
{
/**
* Reset the configuration variables in this adapter.
*/
public function resetConfig();
/**
* Return default port.
*
* @return int
*/
public static function getDefaultPort();
/**
* Check database server version
*
* @throws Exception if database version is less than required version
*/
public function checkServerVersion();
/**
* Returns true if this adapter's required extensions are enabled
*
* @return bool
*/
public static function isEnabled();
/**
* Returns true if this adapter supports blobs as fields
*
* @return bool
*/
public function hasBlobDataType();
/**
* Test error number
*
* @param Exception $e
* @param string $errno
* @return bool
*/
public function isErrNo($e, $errno);
/**
* Is the connection character set equal to utf8?
*
* @return bool
*/
public function isConnectionUTF8();
}
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