cakephp2-php8/libs/dbo_factory.php
phpnut fbf4d9ee27 merging code from sandboxes since [430]
preparing for release .0.9.2

git-svn-id: https://svn.cakephp.org/repo/trunk/cake@606 3807eeeb-6ff5-0310-8944-8be069107fe0
2005-08-21 06:49:02 +00:00

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3.3 KiB
PHP

<?php
/* SVN FILE: $Id$ */
/**
* Short description for file.
*
* Long description for file
*
* PHP versions 4 and 5
*
* CakePHP : Rapid Development Framework <http://www.cakephp.org/>
* Copyright (c) 2005, CakePHP Authors/Developers
*
* Author(s): Michal Tatarynowicz aka Pies <tatarynowicz@gmail.com>
* Larry E. Masters aka PhpNut <nut@phpnut.com>
* Kamil Dzielinski aka Brego <brego.dk@gmail.com>
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @filesource
* @author CakePHP Authors/Developers
* @copyright Copyright (c) 2005, CakePHP Authors/Developers
* @link https://trac.cakephp.org/wiki/Authors Authors/Developers
* @package cake
* @subpackage cake.libs
* @since CakePHP v 0.2.9
* @version $Revision$
* @modifiedby $LastChangedBy$
* @lastmodified $Date$
* @license http://www.opensource.org/licenses/mit-license.php The MIT License
*/
/**
* Enter description here...
*
*/
uses('object');
/**
* Enter description here...
*
*/
config('database');
/**
* DbFactory
*
* Creates DBO-descendant objects from a given db connection configuration
*
* @package cake
* @subpackage cake.libs.dbo
* @since CakePHP v 1.0.0.0
*
*/
class DboFactory extends Object
{
/**
* A semi-singelton. Returns actual instance, or creates a new one with given config.
*
* @param string $config Name of key of $dbConfig array to be used.
* @return mixed
*/
function getInstance($config = null)
{
static $instance = array();
if (!$instance)
{
if ($config == null)
{
return false;
}
$configs = get_class_vars('DATABASE_CONFIG');
$config = $configs[$config];
// special case for AdoDB -- driver name in the form of 'adodb-drivername'
if (preg_match('#^adodb[\-_](.*)$#i', $config['driver'], $res))
{
uses('dbo/dbo_adodb');
$config['driver'] = $res[1];
$instance[0] =& new DBO_AdoDB($config);
}
// special case for PEAR:DB -- driver name in the form of 'pear-drivername'
elseif (preg_match('#^pear[\-_](.*)$#i', $config['driver'], $res))
{
uses('dbo/dbo_pear');
$config['driver'] = $res[1];
$instance[0] =& new DBO_Pear($config);
}
// regular, Cake-native db drivers
else
{
$db_driver_class = 'DBO_'.$config['driver'];
$db_driver_fn = LIBS.strtolower('dbo'.DS.$db_driver_class.'.php');
if (file_exists($db_driver_fn))
{
uses(strtolower('dbo'.DS.$db_driver_class));
$instance[0] =& new $db_driver_class($config);
}
else
{
//trigger_error(ERROR_UNKNOWN_DATABASE_DRIVER, E_USER_ERROR);
return false;
}
}
}
return $instance[0];
}
/**
* Sets config to use. If there is already a connection, close it first.
*
* @param string $configName Name of the config array key to use.
* @return mixed
*/
function setConfig($config)
{
$db = DboFactory::getInstance();
if ($db->isConnected() === true)
{
$db->close();
}
return $this->getInstance($config);
}
}
?>