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<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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* The PEAR DB driver for PHP's mssql extension
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* for interacting with Microsoft SQL Server databases
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*
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* PHP versions 4 and 5
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*
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* LICENSE: This source file is subject to version 3.0 of the PHP license
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* that is available through the world-wide-web at the following URI:
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* http://www.php.net/license/3_0.txt. If you did not receive a copy of
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* the PHP License and are unable to obtain it through the web, please
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* send a note to license@php.net so we can mail you a copy immediately.
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*
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* @category Database
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* @package DB
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* @author Sterling Hughes <sterling@php.net>
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* @author Daniel Convissor <danielc@php.net>
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* @copyright 1997-2005 The PHP Group
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* @license http://www.php.net/license/3_0.txt PHP License 3.0
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* @version CVS: $Id: mssql.php,v 1.83 2005/03/07 18:24:51 danielc Exp $
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* @link http://pear.php.net/package/DB
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*/
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/**
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* Obtain the DB_common class so it can be extended from
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*/
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require_once 'DB/common.php';
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/**
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* The methods PEAR DB uses to interact with PHP's mssql extension
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* for interacting with Microsoft SQL Server databases
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*
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* These methods overload the ones declared in DB_common.
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*
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* @category Database
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* @package DB
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* @author Sterling Hughes <sterling@php.net>
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* @author Daniel Convissor <danielc@php.net>
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* @copyright 1997-2005 The PHP Group
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* @license http://www.php.net/license/3_0.txt PHP License 3.0
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* @version Release: 1.7.6
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* @link http://pear.php.net/package/DB
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*/
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class DB_mssql extends DB_common
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{
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// {{{ properties
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/**
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* The DB driver type (mysql, oci8, odbc, etc.)
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* @var string
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*/
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var $phptype = 'mssql';
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/**
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* The database syntax variant to be used (db2, access, etc.), if any
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* @var string
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*/
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var $dbsyntax = 'mssql';
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/**
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* The capabilities of this DB implementation
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*
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* The 'new_link' element contains the PHP version that first provided
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* new_link support for this DBMS. Contains false if it's unsupported.
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*
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* Meaning of the 'limit' element:
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* + 'emulate' = emulate with fetch row by number
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* + 'alter' = alter the query
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* + false = skip rows
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*
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* @var array
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*/
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var $features = array(
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'limit' => 'emulate',
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'new_link' => false,
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'numrows' => true,
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'pconnect' => true,
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'prepare' => false,
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'ssl' => false,
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'transactions' => true,
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);
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/**
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* A mapping of native error codes to DB error codes
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* @var array
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*/
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// XXX Add here error codes ie: 'S100E' => DB_ERROR_SYNTAX
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var $errorcode_map = array(
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110 => DB_ERROR_VALUE_COUNT_ON_ROW,
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155 => DB_ERROR_NOSUCHFIELD,
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170 => DB_ERROR_SYNTAX,
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207 => DB_ERROR_NOSUCHFIELD,
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208 => DB_ERROR_NOSUCHTABLE,
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245 => DB_ERROR_INVALID_NUMBER,
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515 => DB_ERROR_CONSTRAINT_NOT_NULL,
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547 => DB_ERROR_CONSTRAINT,
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1913 => DB_ERROR_ALREADY_EXISTS,
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2627 => DB_ERROR_CONSTRAINT,
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2714 => DB_ERROR_ALREADY_EXISTS,
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3701 => DB_ERROR_NOSUCHTABLE,
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8134 => DB_ERROR_DIVZERO,
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);
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/**
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* The raw database connection created by PHP
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* @var resource
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*/
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var $connection;
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/**
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* The DSN information for connecting to a database
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* @var array
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*/
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var $dsn = array();
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/**
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* Should data manipulation queries be committed automatically?
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* @var bool
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* @access private
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*/
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var $autocommit = true;
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/**
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* The quantity of transactions begun
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*
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* {@internal While this is private, it can't actually be designated
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* private in PHP 5 because it is directly accessed in the test suite.}}
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*
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* @var integer
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* @access private
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*/
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var $transaction_opcount = 0;
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/**
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* The database specified in the DSN
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*
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* It's a fix to allow calls to different databases in the same script.
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*
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* @var string
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* @access private
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*/
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var $_db = null;
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// }}}
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// {{{ constructor
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/**
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* This constructor calls <kbd>$this->DB_common()</kbd>
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*
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* @return void
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*/
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function DB_mssql()
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{
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$this->DB_common();
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}
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// }}}
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// {{{ connect()
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/**
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* Connect to the database server, log in and open the database
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*
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* Don't call this method directly. Use DB::connect() instead.
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*
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* @param array $dsn the data source name
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* @param bool $persistent should the connection be persistent?
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*
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* @return int DB_OK on success. A DB_Error object on failure.
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*/
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function connect($dsn, $persistent = false)
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{
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if (!PEAR::loadExtension('mssql') && !PEAR::loadExtension('sybase')
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&& !PEAR::loadExtension('sybase_ct'))
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{
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return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
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}
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$this->dsn = $dsn;
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if ($dsn['dbsyntax']) {
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$this->dbsyntax = $dsn['dbsyntax'];
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}
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$params = array(
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$dsn['hostspec'] ? $dsn['hostspec'] : 'localhost',
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$dsn['username'] ? $dsn['username'] : null,
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$dsn['password'] ? $dsn['password'] : null,
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);
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if ($dsn['port']) {
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$params[0] .= ((substr(PHP_OS, 0, 3) == 'WIN') ? ',' : ':')
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. $dsn['port'];
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}
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$connect_function = $persistent ? 'mssql_pconnect' : 'mssql_connect';
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$this->connection = @call_user_func_array($connect_function, $params);
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if (!$this->connection) {
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return $this->raiseError(DB_ERROR_CONNECT_FAILED,
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null, null, null,
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@mssql_get_last_message());
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}
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if ($dsn['database']) {
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if (!@mssql_select_db($dsn['database'], $this->connection)) {
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return $this->raiseError(DB_ERROR_NODBSELECTED,
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null, null, null,
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@mssql_get_last_message());
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}
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$this->_db = $dsn['database'];
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}
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return DB_OK;
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}
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// }}}
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// {{{ disconnect()
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/**
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* Disconnects from the database server
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*
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* @return bool TRUE on success, FALSE on failure
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*/
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function disconnect()
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{
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$ret = @mssql_close($this->connection);
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$this->connection = null;
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return $ret;
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}
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// }}}
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// {{{ simpleQuery()
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/**
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* Sends a query to the database server
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*
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* @param string the SQL query string
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*
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* @return mixed + a PHP result resrouce for successful SELECT queries
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* + the DB_OK constant for other successful queries
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* + a DB_Error object on failure
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*/
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function simpleQuery($query)
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{
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$ismanip = DB::isManip($query);
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$this->last_query = $query;
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if (!@mssql_select_db($this->_db, $this->connection)) {
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return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
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}
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$query = $this->modifyQuery($query);
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if (!$this->autocommit && $ismanip) {
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if ($this->transaction_opcount == 0) {
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$result = @mssql_query('BEGIN TRAN', $this->connection);
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if (!$result) {
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return $this->mssqlRaiseError();
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}
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}
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$this->transaction_opcount++;
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}
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$result = @mssql_query($query, $this->connection);
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if (!$result) {
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return $this->mssqlRaiseError();
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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 $ismanip ? DB_OK : $result;
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}
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// }}}
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// {{{ nextResult()
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/**
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* Move the internal mssql result pointer to the next available result
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*
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* @param a valid fbsql result resource
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*
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* @access public
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*
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* @return true if a result is available otherwise return false
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*/
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function nextResult($result)
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{
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return @mssql_next_result($result);
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}
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// }}}
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// {{{ fetchInto()
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/**
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* Places a row from the result set into the given array
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*
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* Formating of the array and the data therein are configurable.
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* See DB_result::fetchInto() for more information.
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*
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* This method is not meant to be called directly. Use
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* DB_result::fetchInto() instead. It can't be declared "protected"
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* because DB_result is a separate object.
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*
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* @param resource $result the query result resource
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* @param array $arr the referenced array to put the data in
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* @param int $fetchmode how the resulting array should be indexed
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* @param int $rownum the row number to fetch (0 = first row)
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*
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* @return mixed DB_OK on success, NULL when the end of a result set is
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* reached or on failure
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*
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* @see DB_result::fetchInto()
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*/
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function fetchInto($result, &$arr, $fetchmode, $rownum = null)
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{
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if ($rownum !== null) {
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if (!@mssql_data_seek($result, $rownum)) {
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return null;
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}
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}
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if ($fetchmode & DB_FETCHMODE_ASSOC) {
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$arr = @mssql_fetch_array($result, MSSQL_ASSOC);
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if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
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$arr = array_change_key_case($arr, CASE_LOWER);
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}
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} else {
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$arr = @mssql_fetch_row($result);
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}
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if (!$arr) {
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return null;
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}
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if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
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$this->_rtrimArrayValues($arr);
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}
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if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
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$this->_convertNullArrayValuesToEmpty($arr);
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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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/**
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* Deletes the result set and frees the memory occupied by the result set
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*
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* This method is not meant to be called directly. Use
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* DB_result::free() instead. It can't be declared "protected"
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* because DB_result is a separate object.
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*
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* @param resource $result PHP's query result resource
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*
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* @return bool TRUE on success, FALSE if $result is invalid
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*
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* @see DB_result::free()
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*/
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function freeResult($result)
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{
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return @mssql_free_result($result);
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}
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// }}}
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// {{{ numCols()
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/**
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* Gets the number of columns in a result set
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*
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* This method is not meant to be called directly. Use
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* DB_result::numCols() instead. It can't be declared "protected"
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* because DB_result is a separate object.
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*
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* @param resource $result PHP's query result resource
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*
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* @return int the number of columns. A DB_Error object on failure.
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*
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* @see DB_result::numCols()
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*/
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function numCols($result)
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{
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|
|
377 |
$cols = @mssql_num_fields($result);
|
|
|
378 |
if (!$cols) {
|
|
|
379 |
return $this->mssqlRaiseError();
|
|
|
380 |
}
|
|
|
381 |
return $cols;
|
|
|
382 |
}
|
|
|
383 |
|
|
|
384 |
// }}}
|
|
|
385 |
// {{{ numRows()
|
|
|
386 |
|
|
|
387 |
/**
|
|
|
388 |
* Gets the number of rows in a result set
|
|
|
389 |
*
|
|
|
390 |
* This method is not meant to be called directly. Use
|
|
|
391 |
* DB_result::numRows() instead. It can't be declared "protected"
|
|
|
392 |
* because DB_result is a separate object.
|
|
|
393 |
*
|
|
|
394 |
* @param resource $result PHP's query result resource
|
|
|
395 |
*
|
|
|
396 |
* @return int the number of rows. A DB_Error object on failure.
|
|
|
397 |
*
|
|
|
398 |
* @see DB_result::numRows()
|
|
|
399 |
*/
|
|
|
400 |
function numRows($result)
|
|
|
401 |
{
|
|
|
402 |
$rows = @mssql_num_rows($result);
|
|
|
403 |
if ($rows === false) {
|
|
|
404 |
return $this->mssqlRaiseError();
|
|
|
405 |
}
|
|
|
406 |
return $rows;
|
|
|
407 |
}
|
|
|
408 |
|
|
|
409 |
// }}}
|
|
|
410 |
// {{{ autoCommit()
|
|
|
411 |
|
|
|
412 |
/**
|
|
|
413 |
* Enables or disables automatic commits
|
|
|
414 |
*
|
|
|
415 |
* @param bool $onoff true turns it on, false turns it off
|
|
|
416 |
*
|
|
|
417 |
* @return int DB_OK on success. A DB_Error object if the driver
|
|
|
418 |
* doesn't support auto-committing transactions.
|
|
|
419 |
*/
|
|
|
420 |
function autoCommit($onoff = false)
|
|
|
421 |
{
|
|
|
422 |
// XXX if $this->transaction_opcount > 0, we should probably
|
|
|
423 |
// issue a warning here.
|
|
|
424 |
$this->autocommit = $onoff ? true : false;
|
|
|
425 |
return DB_OK;
|
|
|
426 |
}
|
|
|
427 |
|
|
|
428 |
// }}}
|
|
|
429 |
// {{{ commit()
|
|
|
430 |
|
|
|
431 |
/**
|
|
|
432 |
* Commits the current transaction
|
|
|
433 |
*
|
|
|
434 |
* @return int DB_OK on success. A DB_Error object on failure.
|
|
|
435 |
*/
|
|
|
436 |
function commit()
|
|
|
437 |
{
|
|
|
438 |
if ($this->transaction_opcount > 0) {
|
|
|
439 |
if (!@mssql_select_db($this->_db, $this->connection)) {
|
|
|
440 |
return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
|
|
|
441 |
}
|
|
|
442 |
$result = @mssql_query('COMMIT TRAN', $this->connection);
|
|
|
443 |
$this->transaction_opcount = 0;
|
|
|
444 |
if (!$result) {
|
|
|
445 |
return $this->mssqlRaiseError();
|
|
|
446 |
}
|
|
|
447 |
}
|
|
|
448 |
return DB_OK;
|
|
|
449 |
}
|
|
|
450 |
|
|
|
451 |
// }}}
|
|
|
452 |
// {{{ rollback()
|
|
|
453 |
|
|
|
454 |
/**
|
|
|
455 |
* Reverts the current transaction
|
|
|
456 |
*
|
|
|
457 |
* @return int DB_OK on success. A DB_Error object on failure.
|
|
|
458 |
*/
|
|
|
459 |
function rollback()
|
|
|
460 |
{
|
|
|
461 |
if ($this->transaction_opcount > 0) {
|
|
|
462 |
if (!@mssql_select_db($this->_db, $this->connection)) {
|
|
|
463 |
return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
|
|
|
464 |
}
|
|
|
465 |
$result = @mssql_query('ROLLBACK TRAN', $this->connection);
|
|
|
466 |
$this->transaction_opcount = 0;
|
|
|
467 |
if (!$result) {
|
|
|
468 |
return $this->mssqlRaiseError();
|
|
|
469 |
}
|
|
|
470 |
}
|
|
|
471 |
return DB_OK;
|
|
|
472 |
}
|
|
|
473 |
|
|
|
474 |
// }}}
|
|
|
475 |
// {{{ affectedRows()
|
|
|
476 |
|
|
|
477 |
/**
|
|
|
478 |
* Determines the number of rows affected by a data maniuplation query
|
|
|
479 |
*
|
|
|
480 |
* 0 is returned for queries that don't manipulate data.
|
|
|
481 |
*
|
|
|
482 |
* @return int the number of rows. A DB_Error object on failure.
|
|
|
483 |
*/
|
|
|
484 |
function affectedRows()
|
|
|
485 |
{
|
|
|
486 |
if (DB::isManip($this->last_query)) {
|
|
|
487 |
$res = @mssql_query('select @@rowcount', $this->connection);
|
|
|
488 |
if (!$res) {
|
|
|
489 |
return $this->mssqlRaiseError();
|
|
|
490 |
}
|
|
|
491 |
$ar = @mssql_fetch_row($res);
|
|
|
492 |
if (!$ar) {
|
|
|
493 |
$result = 0;
|
|
|
494 |
} else {
|
|
|
495 |
@mssql_free_result($res);
|
|
|
496 |
$result = $ar[0];
|
|
|
497 |
}
|
|
|
498 |
} else {
|
|
|
499 |
$result = 0;
|
|
|
500 |
}
|
|
|
501 |
return $result;
|
|
|
502 |
}
|
|
|
503 |
|
|
|
504 |
// }}}
|
|
|
505 |
// {{{ nextId()
|
|
|
506 |
|
|
|
507 |
/**
|
|
|
508 |
* Returns the next free id in a sequence
|
|
|
509 |
*
|
|
|
510 |
* @param string $seq_name name of the sequence
|
|
|
511 |
* @param boolean $ondemand when true, the seqence is automatically
|
|
|
512 |
* created if it does not exist
|
|
|
513 |
*
|
|
|
514 |
* @return int the next id number in the sequence.
|
|
|
515 |
* A DB_Error object on failure.
|
|
|
516 |
*
|
|
|
517 |
* @see DB_common::nextID(), DB_common::getSequenceName(),
|
|
|
518 |
* DB_mssql::createSequence(), DB_mssql::dropSequence()
|
|
|
519 |
*/
|
|
|
520 |
function nextId($seq_name, $ondemand = true)
|
|
|
521 |
{
|
|
|
522 |
$seqname = $this->getSequenceName($seq_name);
|
|
|
523 |
if (!@mssql_select_db($this->_db, $this->connection)) {
|
|
|
524 |
return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
|
|
|
525 |
}
|
|
|
526 |
$repeat = 0;
|
|
|
527 |
do {
|
|
|
528 |
$this->pushErrorHandling(PEAR_ERROR_RETURN);
|
|
|
529 |
$result = $this->query("INSERT INTO $seqname (vapor) VALUES (0)");
|
|
|
530 |
$this->popErrorHandling();
|
|
|
531 |
if ($ondemand && DB::isError($result) &&
|
|
|
532 |
($result->getCode() == DB_ERROR || $result->getCode() == DB_ERROR_NOSUCHTABLE))
|
|
|
533 |
{
|
|
|
534 |
$repeat = 1;
|
|
|
535 |
$result = $this->createSequence($seq_name);
|
|
|
536 |
if (DB::isError($result)) {
|
|
|
537 |
return $this->raiseError($result);
|
|
|
538 |
}
|
|
|
539 |
} elseif (!DB::isError($result)) {
|
|
|
540 |
$result =& $this->query("SELECT @@IDENTITY FROM $seqname");
|
|
|
541 |
$repeat = 0;
|
|
|
542 |
} else {
|
|
|
543 |
$repeat = false;
|
|
|
544 |
}
|
|
|
545 |
} while ($repeat);
|
|
|
546 |
if (DB::isError($result)) {
|
|
|
547 |
return $this->raiseError($result);
|
|
|
548 |
}
|
|
|
549 |
$result = $result->fetchRow(DB_FETCHMODE_ORDERED);
|
|
|
550 |
return $result[0];
|
|
|
551 |
}
|
|
|
552 |
|
|
|
553 |
/**
|
|
|
554 |
* Creates a new sequence
|
|
|
555 |
*
|
|
|
556 |
* @param string $seq_name name of the new sequence
|
|
|
557 |
*
|
|
|
558 |
* @return int DB_OK on success. A DB_Error object on failure.
|
|
|
559 |
*
|
|
|
560 |
* @see DB_common::createSequence(), DB_common::getSequenceName(),
|
|
|
561 |
* DB_mssql::nextID(), DB_mssql::dropSequence()
|
|
|
562 |
*/
|
|
|
563 |
function createSequence($seq_name)
|
|
|
564 |
{
|
|
|
565 |
return $this->query('CREATE TABLE '
|
|
|
566 |
. $this->getSequenceName($seq_name)
|
|
|
567 |
. ' ([id] [int] IDENTITY (1, 1) NOT NULL,'
|
|
|
568 |
. ' [vapor] [int] NULL)');
|
|
|
569 |
}
|
|
|
570 |
|
|
|
571 |
// }}}
|
|
|
572 |
// {{{ dropSequence()
|
|
|
573 |
|
|
|
574 |
/**
|
|
|
575 |
* Deletes a sequence
|
|
|
576 |
*
|
|
|
577 |
* @param string $seq_name name of the sequence to be deleted
|
|
|
578 |
*
|
|
|
579 |
* @return int DB_OK on success. A DB_Error object on failure.
|
|
|
580 |
*
|
|
|
581 |
* @see DB_common::dropSequence(), DB_common::getSequenceName(),
|
|
|
582 |
* DB_mssql::nextID(), DB_mssql::createSequence()
|
|
|
583 |
*/
|
|
|
584 |
function dropSequence($seq_name)
|
|
|
585 |
{
|
|
|
586 |
return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name));
|
|
|
587 |
}
|
|
|
588 |
|
|
|
589 |
// }}}
|
|
|
590 |
// {{{ quoteIdentifier()
|
|
|
591 |
|
|
|
592 |
/**
|
|
|
593 |
* Quotes a string so it can be safely used as a table or column name
|
|
|
594 |
*
|
|
|
595 |
* @param string $str identifier name to be quoted
|
|
|
596 |
*
|
|
|
597 |
* @return string quoted identifier string
|
|
|
598 |
*
|
|
|
599 |
* @see DB_common::quoteIdentifier()
|
|
|
600 |
* @since Method available since Release 1.6.0
|
|
|
601 |
*/
|
|
|
602 |
function quoteIdentifier($str)
|
|
|
603 |
{
|
|
|
604 |
return '[' . str_replace(']', ']]', $str) . ']';
|
|
|
605 |
}
|
|
|
606 |
|
|
|
607 |
// }}}
|
|
|
608 |
// {{{ mssqlRaiseError()
|
|
|
609 |
|
|
|
610 |
/**
|
|
|
611 |
* Produces a DB_Error object regarding the current problem
|
|
|
612 |
*
|
|
|
613 |
* @param int $errno if the error is being manually raised pass a
|
|
|
614 |
* DB_ERROR* constant here. If this isn't passed
|
|
|
615 |
* the error information gathered from the DBMS.
|
|
|
616 |
*
|
|
|
617 |
* @return object the DB_Error object
|
|
|
618 |
*
|
|
|
619 |
* @see DB_common::raiseError(),
|
|
|
620 |
* DB_mssql::errorNative(), DB_mssql::errorCode()
|
|
|
621 |
*/
|
|
|
622 |
function mssqlRaiseError($code = null)
|
|
|
623 |
{
|
|
|
624 |
$message = @mssql_get_last_message();
|
|
|
625 |
if (!$code) {
|
|
|
626 |
$code = $this->errorNative();
|
|
|
627 |
}
|
|
|
628 |
return $this->raiseError($this->errorCode($code, $message),
|
|
|
629 |
null, null, null, "$code - $message");
|
|
|
630 |
}
|
|
|
631 |
|
|
|
632 |
// }}}
|
|
|
633 |
// {{{ errorNative()
|
|
|
634 |
|
|
|
635 |
/**
|
|
|
636 |
* Gets the DBMS' native error code produced by the last query
|
|
|
637 |
*
|
|
|
638 |
* @return int the DBMS' error code
|
|
|
639 |
*/
|
|
|
640 |
function errorNative()
|
|
|
641 |
{
|
|
|
642 |
$res = @mssql_query('select @@ERROR as ErrorCode', $this->connection);
|
|
|
643 |
if (!$res) {
|
|
|
644 |
return DB_ERROR;
|
|
|
645 |
}
|
|
|
646 |
$row = @mssql_fetch_row($res);
|
|
|
647 |
return $row[0];
|
|
|
648 |
}
|
|
|
649 |
|
|
|
650 |
// }}}
|
|
|
651 |
// {{{ errorCode()
|
|
|
652 |
|
|
|
653 |
/**
|
|
|
654 |
* Determines PEAR::DB error code from mssql's native codes.
|
|
|
655 |
*
|
|
|
656 |
* If <var>$nativecode</var> isn't known yet, it will be looked up.
|
|
|
657 |
*
|
|
|
658 |
* @param mixed $nativecode mssql error code, if known
|
|
|
659 |
* @return integer an error number from a DB error constant
|
|
|
660 |
* @see errorNative()
|
|
|
661 |
*/
|
|
|
662 |
function errorCode($nativecode = null, $msg = '')
|
|
|
663 |
{
|
|
|
664 |
if (!$nativecode) {
|
|
|
665 |
$nativecode = $this->errorNative();
|
|
|
666 |
}
|
|
|
667 |
if (isset($this->errorcode_map[$nativecode])) {
|
|
|
668 |
if ($nativecode == 3701
|
|
|
669 |
&& preg_match('/Cannot drop the index/i', $msg))
|
|
|
670 |
{
|
|
|
671 |
return DB_ERROR_NOT_FOUND;
|
|
|
672 |
}
|
|
|
673 |
return $this->errorcode_map[$nativecode];
|
|
|
674 |
} else {
|
|
|
675 |
return DB_ERROR;
|
|
|
676 |
}
|
|
|
677 |
}
|
|
|
678 |
|
|
|
679 |
// }}}
|
|
|
680 |
// {{{ tableInfo()
|
|
|
681 |
|
|
|
682 |
/**
|
|
|
683 |
* Returns information about a table or a result set
|
|
|
684 |
*
|
|
|
685 |
* NOTE: only supports 'table' and 'flags' if <var>$result</var>
|
|
|
686 |
* is a table name.
|
|
|
687 |
*
|
|
|
688 |
* @param object|string $result DB_result object from a query or a
|
|
|
689 |
* string containing the name of a table.
|
|
|
690 |
* While this also accepts a query result
|
|
|
691 |
* resource identifier, this behavior is
|
|
|
692 |
* deprecated.
|
|
|
693 |
* @param int $mode a valid tableInfo mode
|
|
|
694 |
*
|
|
|
695 |
* @return array an associative array with the information requested.
|
|
|
696 |
* A DB_Error object on failure.
|
|
|
697 |
*
|
|
|
698 |
* @see DB_common::tableInfo()
|
|
|
699 |
*/
|
|
|
700 |
function tableInfo($result, $mode = null)
|
|
|
701 |
{
|
|
|
702 |
if (is_string($result)) {
|
|
|
703 |
/*
|
|
|
704 |
* Probably received a table name.
|
|
|
705 |
* Create a result resource identifier.
|
|
|
706 |
*/
|
|
|
707 |
if (!@mssql_select_db($this->_db, $this->connection)) {
|
|
|
708 |
return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
|
|
|
709 |
}
|
|
|
710 |
$id = @mssql_query("SELECT * FROM $result WHERE 1=0",
|
|
|
711 |
$this->connection);
|
|
|
712 |
$got_string = true;
|
|
|
713 |
} elseif (isset($result->result)) {
|
|
|
714 |
/*
|
|
|
715 |
* Probably received a result object.
|
|
|
716 |
* Extract the result resource identifier.
|
|
|
717 |
*/
|
|
|
718 |
$id = $result->result;
|
|
|
719 |
$got_string = false;
|
|
|
720 |
} else {
|
|
|
721 |
/*
|
|
|
722 |
* Probably received a result resource identifier.
|
|
|
723 |
* Copy it.
|
|
|
724 |
* Deprecated. Here for compatibility only.
|
|
|
725 |
*/
|
|
|
726 |
$id = $result;
|
|
|
727 |
$got_string = false;
|
|
|
728 |
}
|
|
|
729 |
|
|
|
730 |
if (!is_resource($id)) {
|
|
|
731 |
return $this->mssqlRaiseError(DB_ERROR_NEED_MORE_DATA);
|
|
|
732 |
}
|
|
|
733 |
|
|
|
734 |
if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
|
|
|
735 |
$case_func = 'strtolower';
|
|
|
736 |
} else {
|
|
|
737 |
$case_func = 'strval';
|
|
|
738 |
}
|
|
|
739 |
|
|
|
740 |
$count = @mssql_num_fields($id);
|
|
|
741 |
$res = array();
|
|
|
742 |
|
|
|
743 |
if ($mode) {
|
|
|
744 |
$res['num_fields'] = $count;
|
|
|
745 |
}
|
|
|
746 |
|
|
|
747 |
for ($i = 0; $i < $count; $i++) {
|
|
|
748 |
$res[$i] = array(
|
|
|
749 |
'table' => $got_string ? $case_func($result) : '',
|
|
|
750 |
'name' => $case_func(@mssql_field_name($id, $i)),
|
|
|
751 |
'type' => @mssql_field_type($id, $i),
|
|
|
752 |
'len' => @mssql_field_length($id, $i),
|
|
|
753 |
// We only support flags for table
|
|
|
754 |
'flags' => $got_string
|
|
|
755 |
? $this->_mssql_field_flags($result,
|
|
|
756 |
@mssql_field_name($id, $i))
|
|
|
757 |
: '',
|
|
|
758 |
);
|
|
|
759 |
if ($mode & DB_TABLEINFO_ORDER) {
|
|
|
760 |
$res['order'][$res[$i]['name']] = $i;
|
|
|
761 |
}
|
|
|
762 |
if ($mode & DB_TABLEINFO_ORDERTABLE) {
|
|
|
763 |
$res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
|
|
|
764 |
}
|
|
|
765 |
}
|
|
|
766 |
|
|
|
767 |
// free the result only if we were called on a table
|
|
|
768 |
if ($got_string) {
|
|
|
769 |
@mssql_free_result($id);
|
|
|
770 |
}
|
|
|
771 |
return $res;
|
|
|
772 |
}
|
|
|
773 |
|
|
|
774 |
// }}}
|
|
|
775 |
// {{{ _mssql_field_flags()
|
|
|
776 |
|
|
|
777 |
/**
|
|
|
778 |
* Get a column's flags
|
|
|
779 |
*
|
|
|
780 |
* Supports "not_null", "primary_key",
|
|
|
781 |
* "auto_increment" (mssql identity), "timestamp" (mssql timestamp),
|
|
|
782 |
* "unique_key" (mssql unique index, unique check or primary_key) and
|
|
|
783 |
* "multiple_key" (multikey index)
|
|
|
784 |
*
|
|
|
785 |
* mssql timestamp is NOT similar to the mysql timestamp so this is maybe
|
|
|
786 |
* not useful at all - is the behaviour of mysql_field_flags that primary
|
|
|
787 |
* keys are alway unique? is the interpretation of multiple_key correct?
|
|
|
788 |
*
|
|
|
789 |
* @param string $table the table name
|
|
|
790 |
* @param string $column the field name
|
|
|
791 |
*
|
|
|
792 |
* @return string the flags
|
|
|
793 |
*
|
|
|
794 |
* @access private
|
|
|
795 |
* @author Joern Barthel <j_barthel@web.de>
|
|
|
796 |
*/
|
|
|
797 |
function _mssql_field_flags($table, $column)
|
|
|
798 |
{
|
|
|
799 |
static $tableName = null;
|
|
|
800 |
static $flags = array();
|
|
|
801 |
|
|
|
802 |
if ($table != $tableName) {
|
|
|
803 |
|
|
|
804 |
$flags = array();
|
|
|
805 |
$tableName = $table;
|
|
|
806 |
|
|
|
807 |
// get unique and primary keys
|
|
|
808 |
$res = $this->getAll("EXEC SP_HELPINDEX[$table]", DB_FETCHMODE_ASSOC);
|
|
|
809 |
|
|
|
810 |
foreach ($res as $val) {
|
|
|
811 |
$keys = explode(', ', $val['index_keys']);
|
|
|
812 |
|
|
|
813 |
if (sizeof($keys) > 1) {
|
|
|
814 |
foreach ($keys as $key) {
|
|
|
815 |
$this->_add_flag($flags[$key], 'multiple_key');
|
|
|
816 |
}
|
|
|
817 |
}
|
|
|
818 |
|
|
|
819 |
if (strpos($val['index_description'], 'primary key')) {
|
|
|
820 |
foreach ($keys as $key) {
|
|
|
821 |
$this->_add_flag($flags[$key], 'primary_key');
|
|
|
822 |
}
|
|
|
823 |
} elseif (strpos($val['index_description'], 'unique')) {
|
|
|
824 |
foreach ($keys as $key) {
|
|
|
825 |
$this->_add_flag($flags[$key], 'unique_key');
|
|
|
826 |
}
|
|
|
827 |
}
|
|
|
828 |
}
|
|
|
829 |
|
|
|
830 |
// get auto_increment, not_null and timestamp
|
|
|
831 |
$res = $this->getAll("EXEC SP_COLUMNS[$table]", DB_FETCHMODE_ASSOC);
|
|
|
832 |
|
|
|
833 |
foreach ($res as $val) {
|
|
|
834 |
$val = array_change_key_case($val, CASE_LOWER);
|
|
|
835 |
if ($val['nullable'] == '0') {
|
|
|
836 |
$this->_add_flag($flags[$val['column_name']], 'not_null');
|
|
|
837 |
}
|
|
|
838 |
if (strpos($val['type_name'], 'identity')) {
|
|
|
839 |
$this->_add_flag($flags[$val['column_name']], 'auto_increment');
|
|
|
840 |
}
|
|
|
841 |
if (strpos($val['type_name'], 'timestamp')) {
|
|
|
842 |
$this->_add_flag($flags[$val['column_name']], 'timestamp');
|
|
|
843 |
}
|
|
|
844 |
}
|
|
|
845 |
}
|
|
|
846 |
|
|
|
847 |
if (array_key_exists($column, $flags)) {
|
|
|
848 |
return(implode(' ', $flags[$column]));
|
|
|
849 |
}
|
|
|
850 |
return '';
|
|
|
851 |
}
|
|
|
852 |
|
|
|
853 |
// }}}
|
|
|
854 |
// {{{ _add_flag()
|
|
|
855 |
|
|
|
856 |
/**
|
|
|
857 |
* Adds a string to the flags array if the flag is not yet in there
|
|
|
858 |
* - if there is no flag present the array is created
|
|
|
859 |
*
|
|
|
860 |
* @param array &$array the reference to the flag-array
|
|
|
861 |
* @param string $value the flag value
|
|
|
862 |
*
|
|
|
863 |
* @return void
|
|
|
864 |
*
|
|
|
865 |
* @access private
|
|
|
866 |
* @author Joern Barthel <j_barthel@web.de>
|
|
|
867 |
*/
|
|
|
868 |
function _add_flag(&$array, $value)
|
|
|
869 |
{
|
|
|
870 |
if (!is_array($array)) {
|
|
|
871 |
$array = array($value);
|
|
|
872 |
} elseif (!in_array($value, $array)) {
|
|
|
873 |
array_push($array, $value);
|
|
|
874 |
}
|
|
|
875 |
}
|
|
|
876 |
|
|
|
877 |
// }}}
|
|
|
878 |
// {{{ getSpecialQuery()
|
|
|
879 |
|
|
|
880 |
/**
|
|
|
881 |
* Obtains the query string needed for listing a given type of objects
|
|
|
882 |
*
|
|
|
883 |
* @param string $type the kind of objects you want to retrieve
|
|
|
884 |
*
|
|
|
885 |
* @return string the SQL query string or null if the driver doesn't
|
|
|
886 |
* support the object type requested
|
|
|
887 |
*
|
|
|
888 |
* @access protected
|
|
|
889 |
* @see DB_common::getListOf()
|
|
|
890 |
*/
|
|
|
891 |
function getSpecialQuery($type)
|
|
|
892 |
{
|
|
|
893 |
switch ($type) {
|
|
|
894 |
case 'tables':
|
|
|
895 |
return "SELECT name FROM sysobjects WHERE type = 'U'"
|
|
|
896 |
. ' ORDER BY name';
|
|
|
897 |
case 'views':
|
|
|
898 |
return "SELECT name FROM sysobjects WHERE type = 'V'";
|
|
|
899 |
default:
|
|
|
900 |
return null;
|
|
|
901 |
}
|
|
|
902 |
}
|
|
|
903 |
|
|
|
904 |
// }}}
|
|
|
905 |
}
|
|
|
906 |
|
|
|
907 |
/*
|
|
|
908 |
* Local variables:
|
|
|
909 |
* tab-width: 4
|
|
|
910 |
* c-basic-offset: 4
|
|
|
911 |
* End:
|
|
|
912 |
*/
|
|
|
913 |
|
|
|
914 |
?>
|