<?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;

	}

}