mirror of
https://gitlab.com/harald.mueller/aktuelle.kurse.git
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251 lines
6.8 KiB
PHP
251 lines
6.8 KiB
PHP
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<?php
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//
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// +----------------------------------------------------------------------+
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// | PHP Version 4 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1997-2002 The PHP Group |
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// +----------------------------------------------------------------------+
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// | This source file is subject to version 2.02 of the PHP license, |
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// | that is bundled with this package in the file LICENSE, and is |
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// | available at through the world-wide-web at |
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// | http://www.php.net/license/2_02.txt. |
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// | If you did not receive a copy of the PHP license and are unable to |
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// | obtain it through the world-wide-web, please send a note to |
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// | license@php.net so we can mail you a copy immediately. |
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// +----------------------------------------------------------------------+
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// | Author: Sterling Hughes <sterling@php.net> |
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// +----------------------------------------------------------------------+
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//
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// $Id: sybase.php,v 1.30 2002/02/28 08:27:11 sebastian Exp $
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//
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// Database independent query interface definition for PHP's Sybase
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// extension.
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//
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require_once 'DB/common.php';
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class DB_sybase extends DB_common
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{
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// {{{ properties
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var $connection;
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var $phptype, $dbsyntax;
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var $prepare_tokens = array();
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var $prepare_types = array();
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// }}}
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// {{{ constructor
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function DB_sybase()
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{
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$this->DB_common();
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$this->phptype = 'sybase';
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$this->dbsyntax = 'sybase';
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$this->features = array(
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'prepare' => false,
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'pconnect' => true,
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'transactions' => false,
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'limit' => 'emulate'
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);
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}
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// }}}
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// {{{ connect()
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function connect($dsninfo, $persistent = false)
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{
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if (!DB::assertExtension('sybase') && !DB::assertExtension('sybase_ct'))
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return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
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$this->dsn = $dsninfo;
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$user = $dsninfo['username'];
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$pw = $dsninfo['password'];
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$dbhost = $dsninfo['hostspec'] ? $dsninfo['hostspec'] : 'localhost';
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$connect_function = $persistent ? 'sybase_pconnect' : 'sybase_connect';
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if ($dbhost && $user && $pw) {
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$conn = $connect_function($dbhost, $user, $pw);
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} elseif ($dbhost && $user) {
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$conn = $connect_function($dbhost, $user);
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} elseif ($dbhost) {
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$conn = $connect_function($dbhost);
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} else {
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$conn = $connect_function();
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}
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if (!$conn) {
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return $this->raiseError(DB_ERROR_CONNECT_FAILED);
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}
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if ($dsninfo['database']) {
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if (!@sybase_select_db($dsninfo['database'], $conn)) {
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return $this->raiseError(DB_ERROR_NODBSELECTED);
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}
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}
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$this->connection = $conn;
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return DB_OK;
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}
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// }}}
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// {{{ disconnect()
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function disconnect()
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{
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$ret = @sybase_close($this->connection);
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$this->connection = null;
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return $ret;
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}
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// }}}
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// {{{ simpleQuery()
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function simpleQuery($query)
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{
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$this->last_query = $query;
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$query = $this->modifyQuery($query);
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$result = @sybase_query($query, $this->connection);
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if (!$result) {
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return $this->raiseError();
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}
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// Determine which queries that should return data, and which
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// should return an error code only.
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return DB::isManip($query) ? DB_OK : $result;
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}
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// }}}
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// {{{ nextResult()
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/**
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* Move the internal sybase result pointer to the next available result
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*
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* @param a valid fbsql result resource
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*
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* @access public
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*
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* @return true if a result is available otherwise return false
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*/
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function nextResult($result)
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{
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return false;
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}
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// }}}
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// {{{ fetchRow()
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function &fetchRow($result, $fetchmode = DB_FETCHMODE_DEFAULT, $rownum=null)
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{
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if ($fetchmode == DB_FETCHMODE_DEFAULT) {
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$fetchmode = $this->fetchmode;
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}
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$res = $this->fetchInto ($result, $arr, $fetchmode, $rownum);
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if ($res !== DB_OK) {
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return $res;
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}
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return $arr;
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}
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// }}}
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// {{{ fetchInto()
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function fetchInto($result, &$ar, $fetchmode, $rownum=null)
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{
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if ($rownum !== null) {
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if (!sybase_data_seek($result, $rownum)) {
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return $this->raiseError();
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}
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}
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$ar = ($fetchmode & DB_FETCHMODE_ASSOC) ? @sybase_fetch_array($result) : @sybase_fetch_row($result);
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if (!$ar) {
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// reported not work as seems that sybase_get_last_message()
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// always return a message here
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//if ($errmsg = sybase_get_last_message()) {
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// return $this->raiseError($errmsg);
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//} else {
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return null;
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//}
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}
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return DB_OK;
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}
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// }}}
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// {{{ freeResult()
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function freeResult($result)
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{
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if (is_resource($result)) {
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return @sybase_free_result($result);
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}
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if (!isset($this->prepare_tokens[(int)$result])) {
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return false;
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}
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unset($this->prepare_tokens[(int)$result]);
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unset($this->prepare_types[(int)$result]);
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return true;
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}
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// }}}
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// {{{ numCols()
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function numCols($result)
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{
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$cols = @sybase_num_fields($result);
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if (!$cols) {
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return $this->raiseError();
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}
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return $cols;
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}
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// }}}
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// {{{ affectedRows()
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/**
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* Gets the number of rows affected by the data manipulation
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* query. For other queries, this function returns 0.
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*
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* @return number of rows affected by the last query
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*/
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function affectedRows()
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{
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if (DB::isManip($this->last_query)) {
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$result = @sybase_affected_rows($this->connection);
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} else {
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$result = 0;
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}
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return $result;
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}
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// }}}
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// {{{ getSpecialQuery()
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/**
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* Returns the query needed to get some backend info
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* @param string $type What kind of info you want to retrieve
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* @return string The SQL query string
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*/
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function getSpecialQuery($type)
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{
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switch ($type) {
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case 'tables':
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$sql = "select name from sysobjects where type = 'U' order by name";
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break;
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case 'views':
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$sql = "select name from sysobjects where type = 'V'";
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break;
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default:
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return null;
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}
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return $sql;
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}
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// }}}
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}
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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*/
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?>
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