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First ODBC class, not fully functional please don't use or modify.

git-svn-id: file:///svn/phpbb/trunk@58 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
Paul S. Owen 2001-02-25 01:34:31 +00:00
parent 79612d540e
commit c965a3daf4

449
phpBB/db/odbc.php Normal file

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<?php
/***************************************************************************
* mssql.php
* -------------------
* begin : Saturday, Feb 13, 2001
* copyright : (C) 2001 The phpBB Group
* email : support@phpbb.com
*
* $Id$
*
***************************************************************************/
/***************************************************************************
*
* 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","odbc");
class sql_db
{
var $db_connect_id;
var $query_result;
var $query_resultset;
var $query_numrows;
var $query_limit_offset;
var $query_limit_numrows;
var $query_limit_success;
var $next_id;
var $row;
var $row_index;
//
// Constructor
//
function sql_db($sqlserver, $sqluser, $sqlpassword, $database, $persistency = true)
{
$this->persistency = $persistency;
$this->user = $sqluser;
$this->password = $sqlpassword;
$this->server = $sqlserver;
$this->dbname = $database;
if($this->user || $this->password)
{
// $this->server = "DSN=".$this->server;
}
if($this->user)
{
$this->dsn .= ";UID=".$this->user;
}
if($this->password)
{
$this->dsn .= ";PWD=".$this->password;
}
if($this->persistency)
{
$this->db_connect_id = odbc_pconnect($this->server, "", "");
}
else
{
$this->db_connect_id = odbc_connect($this->server, "", "");
}
if($this->db_connect_id)
{
return $this->db_connect_id;
}
else
{
return false;
}
}
//
// Other base methods
//
function sql_setdb($database)
{
return false;
}
function sql_close()
{
if($this->db_connect_id)
{
if($this->query_result)
{
@odbc_free_result($this->query_result);
}
$result = @odbc_close($this->db_connect_id);
return $result;
}
else
{
return false;
}
}
//
// Query method
//
function sql_query($query = "")
{
//
// Remove any pre-existing queries
//
unset($this->query_result);
unset($this->row);
if($query != "")
{
//
// Does query contain any LIMIT code?
// If so pull out relevant start and num_results
// This isn't terribly easy with MSSQL, whatever
// you do will potentially impact performance
// compared to an 'in-built' limit
//
if(eregi(" LIMIT ", $query))
{
eregi("^([a-zA-Z0-9 \*\,\'\"\+\?\.\(\)]+) LIMIT ([0-9]+)[, ]*([0-9]+)*", $query, $limits);
$query = $limits[1];
if($limits[3])
{
$row_offset = $limits[2];
$num_rows = $limits[3];
}
else
{
$row_offset = 0;
$num_rows = $limits[2];
}
// odbc_exec("SET ROWCOUNT ".($row_offset + $num_rows));
$this->query_result = @odbc_query($this->db_connect_id, $query);
// odbc_exec("SET ROWCOUNT 0");
$this->query_limit_success[$this->query_result] = true;
$this->query_limit_offset[$this->query_result] = -1;
$this->query_limit_numrows[$this->query_result] = $num_rows;
if($this->query_result && $row_offset>0)
{
$result = @odbc_data_seek($this->query_result, $row_offset);
if(!$result)
{
$this->query_limit_success[$query_id] = false;
}
$this->query_limit_offset[$this->query_result] = $row_offset;
}
}
else if(eregi("^INSERT ", $query))
{
$this->query_result = @odbc_exec($this->db_connect_id, $query);
// $next_id_query = @odbc_exec("SELECT @@IDENTITY AS this_id");
$this->next_id[$this->query_result] = $this->sql_fetchfield("this_id", -1, $next_id_query);
$this->query_limit_offset[$this->query_result] = -1;
$this->query_limit_numrows[$this->query_result] = -1;
}
else
{
$this->query_result = @odbc_exec($this->db_connect_id, $query);
$this->query_limit_offset[$this->query_result] = -1;
$this->query_limit_numrows[$this->query_result] = -1;
}
if($this->query_result && !eregi("^INSERT ",$query))
{
$this->result_rowset[$this->query_result] = $this->sql_fetchrowset($this->query_result);
$this->result_numrows[$this->query_result] = count($this->result_rowset[$this->query_result]);
$this->row_index[$this->query_result] = 0;
}
return $this->query_result;
}
else
{
return false;
}
}
//
// Other query methods
//
function sql_numrows($query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
if($this->query_limit_offset[$query_id] > 0)
{
$result = @odbc_num_rows($query_id) - $this->query_limit_offset[$query_id];
}
else
{
$result = $this->result_numrows[$query_id];
}
return $result;
}
else
{
return false;
}
}
function sql_numfields($query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
$result = @mssql_num_fields($query_id);
return $result;
}
else
{
return false;
}
}
function sql_fieldname($offset, $query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
$result = @mssql_field_name($query_id, $offset);
return $result;
}
else
{
return false;
}
}
function sql_fieldtype($offset, $query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
$result = @mssql_field_type($query_id, $offset);
return $result;
}
else
{
return false;
}
}
function sql_fetchrow($query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
if($this->query_limit_offset[$query_id] > 0)
{
if($this->query_limit_success)
{
$this->row = @mssql_fetch_array($query_id);
return $this->row;
}
else
{
return false;
}
}
else
{
return $this->result_rowset[$query_id][$this->row_index[$query_id]];
$this->row_index[$query_id]++;
}
}
else
{
return false;
}
}
function sql_fetchrowset($query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
if(!empty($this->result_rowset[$query_id])){
return $this->result_rowset[$query_id];
}
for($i = 1; $i < @odbc_num_fields($query_id)+1; $i++)
{
$this->result_field_names[] = odbc_field_name($query_id, $i);
}
if($this->query_limit_success[$query_id])
{
}
else if($this->query_limit_numrows[$query_id] == -1)
{
$i = 0;
while(@odbc_fetch_row($query_id))
{
for($j = 1; $j < count($this->result_field_names)+1; $j++)
{
$result[$i][$this->result_field_names[$j-1]] = odbc_result($query_id, $j);
}
$i++;
}
}
else
{
$result = false;
}
return $result;
}
else
{
return false;
}
}
function sql_fetchfield($field, $row = -1, $query_id)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
if($row != -1)
{
if($this->query_limit_offset[$query_id] > 0)
{
if($this->query_limit_offset[$query_id] > 0 && $this->query_limit_success)
{
$result = @mssql_result($this->query_result, ($this->query_limit_offset[$query_id] + $row), $field);
}
else
{
return false;
}
}
else
{
$result = @mssql_result($this->query_result, $row, $field);
}
}
else
{
if(empty($this->row))
{
$this->row = @mssql_fetch_array($query_id);
$result = $this->row[$field];
}
}
return $result;
}
else
{
return false;
}
}
function sql_rowseek($offset, $query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
if($this->query_limit_offset[$query_id] > 0)
{
$result = @mssql_data_seek($query_id, ($this->query_limit_offset[$query_id] + $rownum));
}
else
{
$result = @mssql_data_seek($query_id, $rownum);
}
return $result;
}
else
{
return false;
}
}
function sql_nextid($query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
return $this->next_id[$query_id]+1;
}
else
{
return false;
}
}
function sql_freeresult($query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
$result = @mssql_free_result($query_id);
return $result;
}
else
{
return false;
}
}
function sql_error($query_id = 0)
{
$result[message] = @mssql_get_last_message();
return $result;
}
} // class sql_db
} // if ... define
?>