<?php
/***********************************************************************

  Copyright (C) 2002-2005  Dan Fuhry (dan@enanocms.org)

  This file is part of the PunBB to Enano compatibility layer. No part
  of this file is included with any official PunBB distribution.

  PunBB is free software; you can redistribute it and/or modify it
  under the terms of the GNU General Public License as published
  by the Free Software Foundation; either version 2 of the License,
  or (at your option) any later version.

  PunBB is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  MA  02111-1307  USA

************************************************************************/

/**
 * A compatibility layer to allow PunBB to use Enano's database abstraction layer.
 * @package Punano
 * @subpackage Database compatibility layer
 * @copyright (C) 2007 Dan Fuhry
 * @license GNU General Public License
 */

class PunBB_DBAL_Enano
{
  
  var $prefix;
	var $link_id;
	var $query_result;

	var $saved_queries = array();
	var $num_queries = 0;


	function PunBB_DBAL_Enano($db_host, $db_username, $db_password, $db_name, $db_prefix, $p_connect)
	{
		$this->prefix = table_prefix . 'pun_';
	}

	function start_transaction()
	{
		return;
	}

	function end_transaction()
	{
		return;
	}

	function query($sql, $unbuffered = false)
	{
    global $db;
		if (defined('PUN_SHOW_QUERIES'))
			$q_start = get_microtime();

		if ($unbuffered)
			$this->query_result = $db->sql_unbuffered_query($sql);
		else
			$this->query_result = $db->sql_query($sql);

		if ($this->query_result)
		{
			if (defined('PUN_SHOW_QUERIES'))
				$this->saved_queries[] = array($sql, sprintf('%.5f', get_microtime() - $q_start));

			++$this->num_queries;

			return $this->query_result;
		}
		else
		{
			if (defined('PUN_SHOW_QUERIES'))
				$this->saved_queries[] = array($sql, 0);

			return false;
		}
	}

	function result($query_id = 0, $row = 0)
	{
		return ($query_id) ? @mysql_result($query_id, $row) : false;
	}

	function fetch_assoc($query_id = 0)
	{
    global $db;
		return ($query_id) ? $db->fetchrow($query_id) : false;
	}

	function fetch_row($query_id = 0)
	{
    global $db;
		return ($query_id) ? $db->fetchrow_num($query_id) : false;
	}


	function num_rows($query_id = 0)
	{
    global $db;
		return ($query_id) ? @mysql_num_rows($query_id) : false;
	}

	function affected_rows()
	{
    global $db;
		return ($db->_conn) ? @mysql_affected_rows($db->_conn) : false;
	}

	function insert_id()
	{
    global $db;
    $ret = ($db->_conn) ? @mysql_insert_id($db->_conn) : false;
    return $ret;
	}

	function get_num_queries()
	{
		return $this->num_queries;
	}

	function get_saved_queries()
	{
		return $this->saved_queries;
	}

	function free_result($query_id = false)
	{
    global $db;
		return ($query_id) ? $db->free_result($query_id) : false;
	}

	function escape($str)
	{
    global $db;
		if (is_array($str))
			return '';
		else if (function_exists('mysql_real_escape_string'))
			return $db->escape($str);
		else
			return mysql_escape_string($str);
	}


	function error()
	{
		$result['error_sql'] = @current(@end($this->saved_queries));
		$result['error_no'] = @mysql_errno($this->link_id);
		$result['error_msg'] = @mysql_error($this->link_id);

		return $result;
	}


	function close()
	{
		return false;
	}
  
}