<?php
namespace Sookon\Helpers;

use Zend\Config\Config as Zend_Config;

class PDO extends \PDO
{
	private $debug = 0;		//调试模式
	
	private $config_local_path = "config/autoload/local.php";
	
	function __construct($DSN = NULL)
	{
		$config_local = new Zend_Config(include $this->config_local_path);
		
		if(!empty($DSN))
		{
			parent::__construct($DSN);
		}else{
			$dsn = "pgsql:host={$config_local->db->hostname};"
				  ."port=5432;"
				  ."dbname={$config_local->db->database};"
				  ."user={$config_local->db->username};"
				  ."password={$config_local->db->password}";
			parent::__construct($dsn);
		}
	}
	
}