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<?php
/***************************************************************************
* postgres7.php
* -------------------
* begin : Saturday, Feb 13, 2001
* copyright : (C) 2001 The phpBB Group
* email : supportphpbb.com
*
* $Id: postgres7.php,v 1.19.2.3 2005/05/06 20:50:10 acydburn Exp $
*
***************************************************************************/
/***************************************************************************
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
***************************************************************************/
if(!defined("SQL_LAYER"))
{
define("SQL_LAYER","postgresql");
class sql_db
{
var $db_connect_id;
var $query_result;
var $in_transaction = 0;
var $row = array();
var $rowset = array();
var $rownum = array();
var $num_queries = 0;
//
// Constructor
//
function sql_db($sqlserver, $sqluser, $sqlpassword, $database, $persistency = true)
{
$this->connect_string = "";
if( $sqluser )
{
$this->connect_string .= "user=$sqluser ";
}
if( $sqlpassword )
{
$this->connect_string .= "password=$sqlpassword ";
}
if( $sqlserver )
{
if( ereg(":", $sqlserver) )
{
list($sqlserver, $sqlport) = split(":", $sqlserver);
$this->connect_string .= "host=$sqlserver port=$sqlport ";
}
else
{
if( $sqlserver != "localhost" )
{
$this->connect_string .= "host=$sqlserver ";
}
}
}
if( $database )
{
$this->dbname = $database;
$this->connect_string .= "dbname=$database";
}
$this->persistency = $persistency;
$this->db_connect_id = ( $this->persistency ) ? pg_pconnect($this->connect_string) : pg_connect($this->connect_string);
return ( $this->db_connect_id ) ? $this->db_connect_id : false;
}
//
// Other base methods
//
function sql_close()
{
if( $this->db_connect_id )
{
//
// Commit any remaining transactions
//
if( $this->in_transaction )
{
@pg_exec($this->db_connect_id, "COMMIT");
}
if( $this->query_result )
{
@pg_freeresult($this->query_result);
}
return @pg_close($this->db_connect_id);
}
else
{
return false;
}
}
//
// Query method
//
function sql_query($query = "", $transaction = false)
{
//
// Remove any pre-existing queries
//
unset($this->query_result);
if( $query != "" )
{
$this->num_queries++;
$query = preg_replace("/LIMIT ([0-9]+),([ 0-9]+)/", "LIMIT \\2 OFFSET \\1", $query);
if( $transaction == BEGIN_TRANSACTION && !$this->in_transaction )
{
$this->in_transaction = TRUE;
if( !@pg_exec($this->db_connect_id, "BEGIN") )
{
return false;
}
}
$this->query_result = @pg_exec($this->db_connect_id, $query);
if( $this->query_result )
{
if( $transaction == END_TRANSACTION )
{
$this->in_transaction = FALSE;
if( !@pg_exec($this->db_connect_id, "COMMIT") )
{
@pg_exec($this->db_connect_id, "ROLLBACK");
return false;
}
}
$this->last_query_text[$this->query_result] = $query;
$this->rownum[$this->query_result] = 0;
unset($this->row[$this->query_result]);
unset($this->rowset[$this->query_result]);
return $this->query_result;
}
else
{
if( $this->in_transaction )
{
@pg_exec($this->db_connect_id, "ROLLBACK");
}
$this->in_transaction = FALSE;
return false;
}
}
else
{
if( $transaction == END_TRANSACTION && $this->in_transaction )
{
$this->in_transaction = FALSE;
if( !@pg_exec($this->db_connect_id, "COMMIT") )
{
@pg_exec($this->db_connect_id, "ROLLBACK");
return false;
}
}
return true;
}
}
//
// Other query methods
//
function sql_numrows($query_id = 0)
{
if( !$query_id )
{
$query_id = $this->query_result;
}
return ( $query_id ) ? @pg_numrows($query_id) : false;
}
function sql_numfields($query_id = 0)
{
if( !$query_id )
{
$query_id = $this->query_result;
}
return ( $query_id ) ? @pg_numfields($query_id) : false;
}
function sql_fieldname($offset, $query_id = 0)
{
if( !$query_id )
{
$query_id = $this->query_result;
}
return ( $query_id ) ? @pg_fieldname($query_id, $offset) : false;
}
function sql_fieldtype($offset, $query_id = 0)
{
if( !$query_id )
{
$query_id = $this->query_result;
}
return ( $query_id ) ? @pg_fieldtype($query_id, $offset) : false;
}
function sql_fetchrow($query_id = 0)
{
if( !$query_id )
{
$query_id = $this->query_result;
}
if($query_id)
{
$this->row = @pg_fetch_array($query_id, $this->rownum[$query_id]);
if( $this->row )
{
$this->rownum[$query_id]++;
return $this->row;
}
}
return false;
}
function sql_fetchrowset($query_id = 0)
{
if( !$query_id )
{
$query_id = $this->query_result;
}
if( $query_id )
{
unset($this->rowset[$query_id]);
unset($this->row[$query_id]);
$this->rownum[$query_id] = 0;
while( $this->rowset = @pg_fetch_array($query_id, $this->rownum[$query_id], PGSQL_ASSOC) )
{
$result[] = $this->rowset;
$this->rownum[$query_id]++;
}
return $result;
}
return false;
}
function sql_fetchfield($field, $row_offset=-1, $query_id = 0)
{
if( !$query_id )
{
$query_id = $this->query_result;
}
if( $query_id )
{
if( $row_offset != -1 )
{
$this->row = @pg_fetch_array($query_id, $row_offset, PGSQL_ASSOC);
}
else
{
if( $this->rownum[$query_id] )
{
$this->row = @pg_fetch_array($query_id, $this->rownum[$query_id]-1, PGSQL_ASSOC);
}
else
{
$this->row = @pg_fetch_array($query_id, $this->rownum[$query_id], PGSQL_ASSOC);
if( $this->row )
{
$this->rownum[$query_id]++;
}
}
}
return $this->row[$field];
}
return false;
}
function sql_rowseek($offset, $query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if( $query_id )
{
if( $offset > -1 )
{
$this->rownum[$query_id] = $offset;
return true;
}
else
{
return false;
}
}
return false;
}
function sql_nextid()
{
$query_id = $this->query_result;
if($query_id && $this->last_query_text[$query_id] != "")
{
if( preg_match("/^INSERT[\t\n ]+INTO[\t\n ]+([a-z0-9\_\-]+)/is", $this->last_query_text[$query_id], $tablename) )
{
$query = "SELECT currval('" . $tablename[1] . "_id_seq') AS last_value";
$temp_q_id = @pg_exec($this->db_connect_id, $query);
if( !$temp_q_id )
{
return false;
}
$temp_result = @pg_fetch_array($temp_q_id, 0, PGSQL_ASSOC);
return ( $temp_result ) ? $temp_result['last_value'] : false;
}
}
return false;
}
function sql_affectedrows($query_id = 0)
{
if( !$query_id )
{
$query_id = $this->query_result;
}
return ( $query_id ) ? @pg_cmdtuples($query_id) : false;
}
function sql_freeresult($query_id = 0)
{
if( !$query_id )
{
$query_id = $this->query_result;
}
return ( $query_id ) ? @pg_freeresult($query_id) : false;
}
function sql_error($query_id = 0)
{
if( !$query_id )
{
$query_id = $this->query_result;
}
$result['message'] = @pg_errormessage($this->db_connect_id);
$result['code'] = -1;
return $result;
}
} // class ... db_sql
} // if ... defined
?>
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