meta/Meta/Base/db.php

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<?php
/**
* meta
*
* Simple hierarchial data management
*
* @package meta
* @author Timothy J. Warren
* @copyright Copyright (c) 2012
* @link https://github.com/aviat4ion/meta
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* @license http://philsturgeon.co.uk/code/dbad-license
*/
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// --------------------------------------------------------------------------
namespace Meta\Base;
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/**
* Extend PHP's PDO class to add some more functionality
*
*/
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class db extends \Query\Query_Builder {
/**
* DB connection instances
*
* @var array
*/
private static $instance = array();
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// --------------------------------------------------------------------------
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/**
* Indexed singleton method
*
* @param string $dbname
* @param array $options
* @return DB
*/
public static function &get_instance($dbname="default", array $options=array())
{
if ( ! isset(self::$instance[$dbname]))
{
// Include the database config file
require_once(MM_APP_PATH.'config/db.php');
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// Get the correct database in the config file
if ( ! is_like_array($db_conf[$dbname]))
{
// Apparently the database doesn't exist
$this->get_last_error();
trigger_error("Database does not exist", E_USER_ERROR);
die();
}
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//echo 'Creating new instance of db class.';
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self::$instance[$dbname] = Query($db_conf[$dbname]);
}
return self::$instance[$dbname];
}
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// --------------------------------------------------------------------------
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/**
* Returns the last error from the database
*
* @return string
*/
public function get_last_error()
{
$error = array();
if (isset($this->statement))
{
$error = $this->statement->errorInfo();
}
else
{
$error = $this->errorInfo();
}
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list($code, $driver_code, $message) = $error;
// Contain the content for buffering
ob_start();
include(MM_APP_PATH.'/views/errors/error_db.php');
$buffer = ob_get_contents();
ob_end_clean();
echo $buffer;
}
}
// End of db.php