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<?php
/*************************************************************************
* File: db_peardb.php
* Authors: Matthew Palmer <mpalmer@baileyroberts.com.au>
*
* A PEAR DB abstraction layer backend for PHPReports. Acts a little bit
* differently to other PHPReports backends; I don't necessarily think
* that's a problem at my end.
*
* Easiest way to use this is to pass a DSN into the report via the server
* parameter. The rest of the DB parameters are ignored.
*
* Copyright (C) 2004 Bailey Roberts Group Pty Ltd.
*
* This program 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 (version 2 of the License)
* This program 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.
****************************************************************************/
require_once 'DB.php';
class PHPR_PEARDB_Result
{
var $index = 0;
var $data = array();
function PHPR_PEARDB_Result($res)
{
while ($row = $res->fetchRow(DB_FETCHMODE_ASSOC))
{
$this->data[] = $row;
}
$this->index = 0;
}
function fetchNext()
{
if ($this->index >= count($this->data))
{
return NULL;
}
return $this->data[$this->index++];
}
function fieldNames()
{
return array_keys($this->data[0]);
}
function numCols()
{
return count($this->data[0]);
}
}
// This database type is a little different to the average. You can
// either specify a DSN to connect to via the 'server' parameter, or
// otherwise specify a global variable name in the 'database'
// parameter which contains the PEAR database object you want to
// use. 'server' trumps 'database' if both are supplied.
class PHPReportsDBI {
function db_connect($cdata)
{
if ($cdata[2])
{
$DB = DB::Connect($cdata[2]);
}
else
{
global ${$cdata[3]};
$DB = ${$cdata[3]};
}
if (DB::isError($DB))
{
die($DB->getMessage()."\n".$DB->getUserInfo()."\n");
}
return $DB;
}
function db_select_db($sDatabase)
{
// You wanna DB? Pick it in the DSN
return;
}
function db_query(&$DB,$SQL)
{
$res = $DB->query($SQL);
$rv = new PHPR_PEARDB_Result($res);
$res->free();
return $rv;
}
function db_colnum($res)
{
return $res->numCols();
}
function db_columnName($res,$i)
{
$names = $res->fieldNames();
return $names[$i-1];
}
function db_columnType($res,$i)
{
// The type of a field should be irrelevant
return 'INT';
}
// An auto-increment fetch
function db_fetch(&$res)
{
$row = $res->fetchNext();
return $row;
}
function db_free($res)
{
return 0;
}
function db_disconnect($DB)
{
$DB->disconnect();
}
}
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