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|
<?php
/*
+-----------------------------------------------------------------------+
| program/include/rcube_mysql.inc |
| |
| This file is part of the RoundCube Webmail client |
| Copyright (C) 2005, RoundCube Dev. - Switzerland |
| All rights reserved. |
| |
| PURPOSE: |
| MySQL wrapper class that implements PHP MySQL functions |
| See http://www.php.net/manual/en/ref.mysql.php |
| |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
+-----------------------------------------------------------------------+
$Id$
*/
class rcube_mysql
{
var $db_link;
var $db_host = 'localhost';
var $db_name = '';
var $db_user = '';
var $db_pass = '';
var $a_query_results = array('dummy');
var $last_res_id = 0;
// PHP 5 constructor
function __construct($db_name='', $user='', $pass='', $host='localhost')
{
$this->db_host = $host;
$this->db_name = $db_name;
$this->db_user = $user;
$this->db_pass = $pass;
}
// PHP 4 compatibility
function rcube_mysql($db_name='', $user='', $pass='', $host='localhost')
{
$this->__construct($db_name, $user, $pass, $host);
}
function connect()
{
$this->db_link = mysql_connect($this->db_host, $this->db_user, $this->db_pass);
if (!$this->db_link)
{
raise_error(array('code' => 500,
'type' => 'mysql',
'line' => __LINE__,
'file' => __FILE__,
'message' => "Can't connect to database"), TRUE, FALSE);
return FALSE;
}
return TRUE;
}
function select_db($name)
{
$this->db_name = $name;
if ($this->db_link)
mysql_select_db($name, $this->db_link);
}
function query($query)
{
// establish a connection
if (!$this->db_link)
{
if (!$this->connect())
return FALSE;
}
$sql_result = mysql_db_query($this->db_name, $query, $this->db_link);
return $this->_add_result($sql_result, $query);
}
function num_rows($res_id=NULL)
{
if (!$this->db_link)
return FALSE;
$sql_result = $this->_get_result($res_id);
if ($sql_result)
return mysql_num_rows($sql_result);
else
return FALSE;
}
function affected_rows()
{
if (!$this->db_link)
return FALSE;
return mysql_affected_rows($this->db_link);
}
function insert_id()
{
if (!$this->db_link)
return FALSE;
return mysql_insert_id($this->db_link);
}
function fetch_assoc($res_id=NULL)
{
$sql_result = $this->_get_result($res_id);
if ($sql_result)
return mysql_fetch_assoc($sql_result);
else
return FALSE;
}
function seek($res_id=NULL, $row=0)
{
$sql_result = $this->_get_result($res_id);
if ($sql_result)
return mysql_data_seek($sql_result, $row);
else
return FALSE;
}
function _add_result($res, $query)
{
// sql error occured
if ($res===FALSE)
{
$sql_error = mysql_error($this->db_link);
raise_error(array('code' => 500,
'type' => 'mysql',
'line' => __LINE__,
'file' => __FILE__,
'message' => $sql_error."; QUERY: ".preg_replace('/[\r\n]+\s*/', ' ', $query)), TRUE, FALSE);
return FALSE;
}
else
{
$res_id = sizeof($this->a_query_results);
$this->a_query_results[$res_id] = $res;
$this->last_res_id = $res_id;
return $res_id;
}
}
function _get_result($res_id)
{
if ($res_id===NULL)
$res_id = $this->last_res_id;
if ($res_id && isset($this->a_query_results[$res_id]))
return $this->a_query_results[$res_id];
else
return FALSE;
}
}
?>
|
