egroupware/phpgwapi/inc/class.db_mssql.inc.php

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<?php
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/**************************************************************************\
* phpGroupWare API - MS SQL Server support *
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* (C) Copyright 1998 Cameron Taggart (cameront@wolfenet.com) *
* Modified by Guarneri carmelo (carmelo@melting-soft.com) *
* Modified by Cameron Just (C.Just@its.uq.edu.au) *
* ------------------------------------------------------------------------ *
* This is not part of phpGroupWare, but is used by phpGroupWare. *
* http://www.phpgroupware.org/ *
* ------------------------------------------------------------------------ *
* This program is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published *
* by the Free Software Foundation; either version 2.1 of the License, or *
* any later version. *
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\**************************************************************************/
/* $Id$ */
# echo "<BR>This is using the MSSQL class<BR>";
class db {
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var $Host = "";
var $Database = "";
var $User = "";
var $Password = "";
var $Link_ID = 0;
var $Query_ID = 0;
var $Record = array();
var $Row = 0;
var $Errno = 0;
var $Error = "";
var $Auto_Free = 0; ## set this to 1 to automatically free results
function connect() {
if ( 0 == $this->Link_ID ) {
$this->Link_ID=mssql_pconnect($this->Host, $this->User, $this->Password);
if (!$this->Link_ID)
$this->halt("Link-ID == false, mssql_pconnect failed");
else
mssql_select_db($this->Database, $this->Link_ID);
}
}
function free_result(){
mssql_free_result($this->Query_ID);
$this->Query_ID = 0;
}
function query($Query_String) {
if (!$this->Link_ID)
$this->connect();
# printf("<br>Debug: query = %s<br>\n", $Query_String);
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$this->Query_ID = mssql_query($Query_String, $this->Link_ID);
$this->Row = 0;
if (!$this->Query_ID) {
$this->Errno = 1;
$this->Error = "General Error (The MSSQL interface cannot return detailed error messages).";
$this->halt("Invalid SQL: ".$Query_String);
}
return $this->Query_ID;
}
function next_record() {
if ($this->Record = mssql_fetch_row($this->Query_ID)) {
// add to Record[<key>]
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$count = mssql_num_fields($this->Query_ID);
for ($i=0; $i<$count; $i++){
$fieldinfo = mssql_fetch_field($this->Query_ID,$i);
$this->Record[strtolower($fieldinfo->name)] = $this->Record[$i];
}
$this->Row += 1;
$stat = 1;
} else {
if ($this->Auto_Free) {
$this->free_result();
}
$stat = 0;
}
return $stat;
}
function transaction_begin()
{
return $this->query('BEGIN TRAN');
}
function transaction_commit()
{
if (!$this->Errno)
return $this->query('COMMIT TRAN');
return False;
}
function transaction_abort()
{
return $this->query('ROLLBACK TRAN');
}
function seek($pos) {
mssql_data_seek($this->Query_ID,$pos);
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$this->Row = $pos;
}
function metadata($table) {
$count = 0;
$id = 0;
$res = array();
$this->connect();
$id = mssql_query("select * from $table", $this->Link_ID);
if (!$id) {
$this->Errno = 1;
$this->Error = "General Error (The MSSQL interface cannot return detailed error messages).";
$this->halt("Metadata query failed.");
}
$count = mssql_num_fields($id);
for ($i=0; $i<$count; $i++) {
$info = mssql_fetch_field($id, $i);
$res[$i]["table"] = $table;
$res[$i]["name"] = $info["name"];
$res[$i]["len"] = $info["max_length"];
$res[$i]["flags"] = $info["numeric"];
}
$this->free_result();
return $res;
}
function affected_rows() {
return mssql_affected_rows($this->Query_ID);
}
function num_rows() {
return mssql_num_rows($this->Query_ID);
}
function num_fields() {
return mssql_num_fields($this->Query_ID);
}
function nf() {
return $this->num_rows();
}
function np() {
print $this->num_rows();
}
function f($Field_Name) {
return $this->Record[strtolower($Field_Name)];
}
function p($Field_Name) {
print $this->f($Field_Name);
}
function halt($msg) {
printf("<b>Database error:</b> %s<br>\n", $msg);
printf("<b>MSSQL Error</b>: %s (%s)<br>\n",
$this->Errno,
$this->Error);
die("Session halted.");
}
function table_names()
{
$this->query("select name from sysobjects where type='u' and name != 'dtproperties'");
$i = 0;
while ($info = @mssql_fetch_row($this->Query_ID))
{
$return[$i]['table_name'] = $info[0];
$return[$i]['tablespace_name'] = $this->Database;
$return[$i]['database'] = $this->Database;
$i++;
}
return $return;
}
}
?>