forked from extern/egroupware
365 lines
7.8 KiB
PHP
365 lines
7.8 KiB
PHP
<?php
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/**************************************************************************\
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* phpGroupWare API - MS SQL Server support *
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* (C) Copyright 1998 Cameron Taggart (cameront@wolfenet.com) *
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* Modified by Guarneri carmelo (carmelo@melting-soft.com) *
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* Modified by Cameron Just (C.Just@its.uq.edu.au) *
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* ------------------------------------------------------------------------ *
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* This is not part of phpGroupWare, but is used by phpGroupWare. *
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* http://www.phpgroupware.org/ *
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* ------------------------------------------------------------------------ *
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* This program is free software; you can redistribute it and/or modify it *
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* under the terms of the GNU Lesser General Public License as published *
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* by the Free Software Foundation; either version 2.1 of the License, or *
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* any later version. *
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\**************************************************************************/
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/* $Id$ */
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/* echo "<BR>This is using the MSSQL class<BR>"; */
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// ^^ really ?! :)
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class db
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{
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var $Host = '';
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var $Database = '';
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var $User = '';
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var $Password = '';
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var $Link_ID = 0;
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var $Query_ID = 0;
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var $Record = array();
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var $Row = 0;
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var $VEOF = -1;
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var $Errno = 0;
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var $Error = '';
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var $Auto_Free = 0; ## set this to 1 to automatically free results
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var $Debug = false;
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function connect()
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{
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if ( 0 == $this->Link_ID )
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{
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if ($GLOBALS['phpgw_info']['server']['db_persistent'])
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{
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$this->Link_ID=mssql_pconnect($this->Host, $this->User, $this->Password);
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}
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else
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{
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$this->Link_ID=mssql_connect($this->Host, $this->User, $this->Password);
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}
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if (!$this->Link_ID)
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{
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$this->halt('Link-ID == false, mssql_'.($GLOBALS['phpgw_info']['server']['db_persistent']?'p':'').'connect failed');
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}
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else
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{
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mssql_select_db($this->Database, $this->Link_ID);
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}
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}
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}
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function disconnect()
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{
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}
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function db_addslashes($str)
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{
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if (!IsSet($str) || $str == '')
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return '';
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return ereg_replace("'", "''", $str);
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}
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function free_result()
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{
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mssql_free_result($this->Query_ID);
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$this->Query_ID = 0;
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$this->VEOF = -1;
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}
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function query($Query_String, $line = '', $file = '')
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{
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$this->VEOF = -1;
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if (!$this->Link_ID)
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{
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$this->connect();
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}
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$this->Query_ID = mssql_query($Query_String, $this->Link_ID);
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$this->Row = 0;
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if (!$this->Query_ID)
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{
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$this->halt("Invalid SQL: " . $Query_String, $line, $file);
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}
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return $this->Query_ID;
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}
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// I don't have access to M$-SQL, can someone finish these 2 functions ? (jengo)
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function to_timestamp($epoch)
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{
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return False;
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}
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function from_timestamp($timestamp)
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{
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return False;
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}
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// public: perform a query with limited result set
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function limit_query($Query_String, $offset, $line = '', $file = '', $num_rows = '')
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{
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global $phpgw_info;
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if (! $num_rows)
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{
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$num_rows = $phpgw_info['user']['preferences']['common']['maxmatchs'];
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}
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if ($this->Debug)
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{
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printf("Debug: limit_query = %s<br>offset=%d, num_rows=%d<br>\n", $Query_String, $offset, $num_rows);
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}
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$this->query($Query_String, $line, $file);
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if ($this->Query_ID)
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{
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$this->Row = $offset;
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// Push cursor to appropriate row in case next_record() is used
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if ($offset > 0)
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{
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@mssql_data_seek($this->Query_ID, $offset);
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}
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$this->VEOF = $offset + $num_rows - 1;
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}
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return $this->Query_ID;
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}
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function next_record()
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{
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if (!$this->Query_ID)
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{
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$this->halt("next_record called with no query pending.");
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return 0;
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}
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if ($this->VEOF == -1 || ($this->Row++ <= $this->VEOF))
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{
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// Work around for buggy mssql_fetch_array
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$rec = @mssql_fetch_row($this->Query_ID);
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if ($rec)
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{
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$this->Record = array();
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for ($i = 0; $i < count($rec); $i++)
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{
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$this->Record[$i] = $rec[$i];
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$o = mssql_fetch_field($this->Query_ID, $i);
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$this->Record[$o->name] = $rec[$i];
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}
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}
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else
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{
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$this->Record = NULL;
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}
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}
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else
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{
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$this->Record = NULL;
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}
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$stat = is_array($this->Record);
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if (!$stat && $this->Auto_Free)
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{
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$this->free();
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}
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return $stat;
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}
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function transaction_begin()
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{
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return $this->query('BEGIN TRAN');
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}
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function transaction_commit()
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{
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if (!$this->Errno)
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{
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return $this->query('COMMIT TRAN');
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}
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return False;
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}
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function transaction_abort()
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{
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return $this->query('ROLLBACK TRAN');
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}
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function seek($pos)
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{
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mssql_data_seek($this->Query_ID,$pos);
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$this->Row = $pos;
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}
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function metadata($table)
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{
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$count = 0;
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$id = 0;
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$res = array();
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$this->connect();
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$id = mssql_query("select * from $table", $this->Link_ID);
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if (!$id)
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{
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$this->halt("Metadata query failed.");
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}
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$count = mssql_num_fields($id);
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for ($i=0; $i<$count; $i++)
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{
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$info = mssql_fetch_field($id, $i);
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$res[$i]["table"] = $table;
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$res[$i]["name"] = $info["name"];
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$res[$i]["len"] = $info["max_length"];
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$res[$i]["flags"] = $info["numeric"];
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}
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$this->free_result();
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return $res;
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}
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function affected_rows()
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{
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return mssql_affected_rows($this->Query_ID);
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}
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function num_rows()
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{
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return mssql_num_rows($this->Query_ID);
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}
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function num_fields()
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{
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return mssql_num_fields($this->Query_ID);
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}
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function nf()
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{
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return $this->num_rows();
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}
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function np()
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{
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print $this->num_rows();
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}
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function f($Field_Name)
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{
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return $this->Record[strtolower($Field_Name)];
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}
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function p($Field_Name)
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{
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print $this->f($Field_Name);
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}
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/* public: table locking */
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function get_last_insert_id($table, $field)
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{
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/* This will get the last insert ID created on the current connection. Should only be called
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* after an insert query is run on a table that has an auto incrementing field. Of note, table
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* and field are required for pgsql compatiblity. MSSQL uses a query to retrieve the last
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* identity on the connection, so table and field are ignored here as well.
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*/
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if (!isset($table) || $table == '' || !isset($field) || $field == '')
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return -1;
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$result = @mssql_query("select @@identity", $this->Link_ID);
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if (!$result)
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return -1;
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$Record = @mssql_fetch_row(0);
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@mssql_free_result($result);
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if (!is_array($Record)) /* no identity? */
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return -1;
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return $Record[0];
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}
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function lock($table, $mode="write")
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{
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// /me really, really, really hates locks - transactions serve just fine
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return $this->transaction_begin();
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}
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function unlock()
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{
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return $this->transaction_commit();
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}
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/* private: error handling */
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function halt($msg, $line = '', $file = '')
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{
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global $phpgw;
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$this->unlock();
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$this->Errno = 1;
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$this->Error = mssql_get_last_message();
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if ($this->Error == '')
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{
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$this->Error = "General Error (The MS-SQL interface did not return a detailed error message).";
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}
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if ($this->Halt_On_Error == "no")
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{
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return;
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}
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$this->haltmsg($msg);
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if ($file)
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{
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printf("<br><b>File:</b> %s",$file);
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}
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if ($line)
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{
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printf("<br><b>Line:</b> %s",$line);
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}
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if ($this->Halt_On_Error != "report")
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{
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echo "<p><b>Session halted.</b>";
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$phpgw->common->phpgw_exit(True);
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}
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}
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function haltmsg($msg)
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{
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printf("<b>Database error:</b> %s<br>\n", $msg);
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if ($this->Errno != "0" && $this->Error != "()")
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{
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printf("<b>MS-SQL Error</b>: %s (%s)<br>\n", $this->Errno, $this->Error);
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}
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}
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function table_names()
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{
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$this->query("select name from sysobjects where type='u' and name != 'dtproperties'");
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$i = 0;
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while ($info = @mssql_fetch_row($this->Query_ID))
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{
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$return[$i]['table_name'] = $info[0];
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$return[$i]['tablespace_name'] = $this->Database;
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$return[$i]['database'] = $this->Database;
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$i++;
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}
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return $return;
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}
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}
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?>
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