884 lines
26 KiB
PHP
884 lines
26 KiB
PHP
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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 odbc extension
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* for interacting with databases via ODBC connections
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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 Stig Bakken <ssb@php.net>
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* @author Daniel Convissor <danielc@php.net>
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* @copyright 1997-2007 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: odbc.php,v 1.81 2007/07/06 05:19:21 aharvey 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 odbc extension
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* for interacting with databases via ODBC connections
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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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* More info on ODBC errors could be found here:
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* http://msdn.microsoft.com/library/default.asp?url=/library/en-us/trblsql/tr_err_odbc_5stz.asp
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*
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* @category Database
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* @package DB
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* @author Stig Bakken <ssb@php.net>
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* @author Daniel Convissor <danielc@php.net>
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* @copyright 1997-2007 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: 1.7.14RC1
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* @link http://pear.php.net/package/DB
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*/
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class DB_odbc 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 = 'odbc';
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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 = 'sql92';
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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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* NOTE: The feature set of the following drivers are different than
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* the default:
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* + solid: 'transactions' = true
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* + navision: 'limit' = false
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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' => false,
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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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var $errorcode_map = array(
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'01004' => DB_ERROR_TRUNCATED,
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'07001' => DB_ERROR_MISMATCH,
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'21S01' => DB_ERROR_VALUE_COUNT_ON_ROW,
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'21S02' => DB_ERROR_MISMATCH,
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'22001' => DB_ERROR_INVALID,
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'22003' => DB_ERROR_INVALID_NUMBER,
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'22005' => DB_ERROR_INVALID_NUMBER,
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'22008' => DB_ERROR_INVALID_DATE,
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'22012' => DB_ERROR_DIVZERO,
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'23000' => DB_ERROR_CONSTRAINT,
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'23502' => DB_ERROR_CONSTRAINT_NOT_NULL,
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'23503' => DB_ERROR_CONSTRAINT,
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'23504' => DB_ERROR_CONSTRAINT,
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'23505' => DB_ERROR_CONSTRAINT,
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'24000' => DB_ERROR_INVALID,
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'34000' => DB_ERROR_INVALID,
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'37000' => DB_ERROR_SYNTAX,
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'42000' => DB_ERROR_SYNTAX,
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'42601' => DB_ERROR_SYNTAX,
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'IM001' => DB_ERROR_UNSUPPORTED,
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'S0000' => DB_ERROR_NOSUCHTABLE,
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'S0001' => DB_ERROR_ALREADY_EXISTS,
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'S0002' => DB_ERROR_NOSUCHTABLE,
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'S0011' => DB_ERROR_ALREADY_EXISTS,
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'S0012' => DB_ERROR_NOT_FOUND,
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'S0021' => DB_ERROR_ALREADY_EXISTS,
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'S0022' => DB_ERROR_NOSUCHFIELD,
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'S1009' => DB_ERROR_INVALID,
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'S1090' => DB_ERROR_INVALID,
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'S1C00' => DB_ERROR_NOT_CAPABLE,
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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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* The number of rows affected by a data manipulation query
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* @var integer
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* @access private
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*/
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var $affected = 0;
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// }}}
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// {{{ constructor
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/**
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* This constructor calls <kbd>$this->DB_common()</kbd>
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*
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* @return void
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*/
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function DB_odbc()
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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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* PEAR DB's odbc driver supports the following extra DSN options:
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* + cursor The type of cursor to be used for this connection.
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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('odbc')) {
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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 = $dsn['dbsyntax'];
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}
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switch ($this->dbsyntax) {
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case 'access':
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case 'db2':
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case 'solid':
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$this->features['transactions'] = true;
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break;
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case 'navision':
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$this->features['limit'] = false;
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}
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/*
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* This is hear for backwards compatibility. Should have been using
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* 'database' all along, but prior to 1.6.0RC3 'hostspec' was used.
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*/
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if ($dsn['database']) {
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$odbcdsn = $dsn['database'];
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} elseif ($dsn['hostspec']) {
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$odbcdsn = $dsn['hostspec'];
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} else {
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$odbcdsn = 'localhost';
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}
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$connect_function = $persistent ? 'odbc_pconnect' : 'odbc_connect';
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if (empty($dsn['cursor'])) {
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$this->connection = @$connect_function($odbcdsn, $dsn['username'],
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$dsn['password']);
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} else {
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$this->connection = @$connect_function($odbcdsn, $dsn['username'],
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$dsn['password'],
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$dsn['cursor']);
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}
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if (!is_resource($this->connection)) {
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return $this->raiseError(DB_ERROR_CONNECT_FAILED,
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null, null, null,
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$this->errorNative());
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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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$err = @odbc_close($this->connection);
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$this->connection = null;
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return $err;
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}
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// }}}
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// {{{ simpleQuery()
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/**
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* Sends a query to the database server
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*
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* @param string the SQL query string
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*
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* @return mixed + a PHP result resrouce for successful SELECT queries
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* + the DB_OK constant for other successful queries
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* + a DB_Error object on failure
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*/
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function simpleQuery($query)
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{
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$this->last_query = $query;
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$query = $this->modifyQuery($query);
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$result = @odbc_exec($this->connection, $query);
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if (!$result) {
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return $this->odbcRaiseError(); // XXX ERRORMSG
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}
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// Determine which queries that should return data, and which
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// should return an error code only.
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if ($this->_checkManip($query)) {
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$this->affected = $result; // For affectedRows()
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return DB_OK;
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}
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$this->affected = 0;
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return $result;
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}
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// }}}
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// {{{ nextResult()
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/**
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* Move the internal odbc result pointer to the next available result
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*
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* @param a valid fbsql result resource
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*
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* @access public
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*
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* @return true if a result is available otherwise return false
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*/
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function nextResult($result)
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{
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return @odbc_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, $rownum = null)
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{
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$arr = array();
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if ($rownum !== null) {
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$rownum++; // ODBC first row is 1
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if (version_compare(phpversion(), '4.2.0', 'ge')) {
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$cols = @odbc_fetch_into($result, $arr, $rownum);
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} else {
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$cols = @odbc_fetch_into($result, $rownum, $arr);
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}
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} else {
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$cols = @odbc_fetch_into($result, $arr);
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}
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if (!$cols) {
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return null;
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}
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if ($fetchmode !== DB_FETCHMODE_ORDERED) {
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for ($i = 0; $i < count($arr); $i++) {
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$colName = @odbc_field_name($result, $i+1);
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$a[$colName] = $arr[$i];
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}
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if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
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$a = array_change_key_case($a, CASE_LOWER);
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}
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$arr = $a;
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}
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if ($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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||
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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 is_resource($result) ? odbc_free_result($result) : false;
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}
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// }}}
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// {{{ numCols()
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/**
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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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|
*
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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 $result PHP's query result resource
|
||
|
|
*
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||
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|
* @return int the number of columns. A DB_Error object on failure.
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||
|
|
*
|
||
|
|
* @see DB_result::numCols()
|
||
|
|
*/
|
||
|
|
function numCols($result)
|
||
|
|
{
|
||
|
|
$cols = @odbc_num_fields($result);
|
||
|
|
if (!$cols) {
|
||
|
|
return $this->odbcRaiseError();
|
||
|
|
}
|
||
|
|
return $cols;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ affectedRows()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determines the number of rows affected by a data maniuplation query
|
||
|
|
*
|
||
|
|
* 0 is returned for queries that don't manipulate data.
|
||
|
|
*
|
||
|
|
* @return int the number of rows. A DB_Error object on failure.
|
||
|
|
*/
|
||
|
|
function affectedRows()
|
||
|
|
{
|
||
|
|
if (empty($this->affected)) { // In case of SELECT stms
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
$nrows = @odbc_num_rows($this->affected);
|
||
|
|
if ($nrows == -1) {
|
||
|
|
return $this->odbcRaiseError();
|
||
|
|
}
|
||
|
|
return $nrows;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ numRows()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets the number of rows in a result set
|
||
|
|
*
|
||
|
|
* Not all ODBC drivers support this functionality. If they don't
|
||
|
|
* a DB_Error object for DB_ERROR_UNSUPPORTED is returned.
|
||
|
|
*
|
||
|
|
* This method is not meant to be called directly. Use
|
||
|
|
* DB_result::numRows() instead. It can't be declared "protected"
|
||
|
|
* because DB_result is a separate object.
|
||
|
|
*
|
||
|
|
* @param resource $result PHP's query result resource
|
||
|
|
*
|
||
|
|
* @return int the number of rows. A DB_Error object on failure.
|
||
|
|
*
|
||
|
|
* @see DB_result::numRows()
|
||
|
|
*/
|
||
|
|
function numRows($result)
|
||
|
|
{
|
||
|
|
$nrows = @odbc_num_rows($result);
|
||
|
|
if ($nrows == -1) {
|
||
|
|
return $this->odbcRaiseError(DB_ERROR_UNSUPPORTED);
|
||
|
|
}
|
||
|
|
if ($nrows === false) {
|
||
|
|
return $this->odbcRaiseError();
|
||
|
|
}
|
||
|
|
return $nrows;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ quoteIdentifier()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Quotes a string so it can be safely used as a table or column name
|
||
|
|
*
|
||
|
|
* Use 'mssql' as the dbsyntax in the DB DSN only if you've unchecked
|
||
|
|
* "Use ANSI quoted identifiers" when setting up the ODBC data source.
|
||
|
|
*
|
||
|
|
* @param string $str identifier name to be quoted
|
||
|
|
*
|
||
|
|
* @return string quoted identifier string
|
||
|
|
*
|
||
|
|
* @see DB_common::quoteIdentifier()
|
||
|
|
* @since Method available since Release 1.6.0
|
||
|
|
*/
|
||
|
|
function quoteIdentifier($str)
|
||
|
|
{
|
||
|
|
switch ($this->dsn['dbsyntax']) {
|
||
|
|
case 'access':
|
||
|
|
return '[' . $str . ']';
|
||
|
|
case 'mssql':
|
||
|
|
case 'sybase':
|
||
|
|
return '[' . str_replace(']', ']]', $str) . ']';
|
||
|
|
case 'mysql':
|
||
|
|
case 'mysqli':
|
||
|
|
return '`' . $str . '`';
|
||
|
|
default:
|
||
|
|
return '"' . str_replace('"', '""', $str) . '"';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ quote()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @deprecated Deprecated in release 1.6.0
|
||
|
|
* @internal
|
||
|
|
*/
|
||
|
|
function quote($str)
|
||
|
|
{
|
||
|
|
return $this->quoteSmart($str);
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ nextId()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns the next free id in a sequence
|
||
|
|
*
|
||
|
|
* @param string $seq_name name of the sequence
|
||
|
|
* @param boolean $ondemand when true, the seqence is automatically
|
||
|
|
* created if it does not exist
|
||
|
|
*
|
||
|
|
* @return int the next id number in the sequence.
|
||
|
|
* A DB_Error object on failure.
|
||
|
|
*
|
||
|
|
* @see DB_common::nextID(), DB_common::getSequenceName(),
|
||
|
|
* DB_odbc::createSequence(), DB_odbc::dropSequence()
|
||
|
|
*/
|
||
|
|
function nextId($seq_name, $ondemand = true)
|
||
|
|
{
|
||
|
|
$seqname = $this->getSequenceName($seq_name);
|
||
|
|
$repeat = 0;
|
||
|
|
do {
|
||
|
|
$this->pushErrorHandling(PEAR_ERROR_RETURN);
|
||
|
|
$result = $this->query("update ${seqname} set id = id + 1");
|
||
|
|
$this->popErrorHandling();
|
||
|
|
if ($ondemand && DB::isError($result) &&
|
||
|
|
$result->getCode() == DB_ERROR_NOSUCHTABLE) {
|
||
|
|
$repeat = 1;
|
||
|
|
$this->pushErrorHandling(PEAR_ERROR_RETURN);
|
||
|
|
$result = $this->createSequence($seq_name);
|
||
|
|
$this->popErrorHandling();
|
||
|
|
if (DB::isError($result)) {
|
||
|
|
return $this->raiseError($result);
|
||
|
|
}
|
||
|
|
$result = $this->query("insert into ${seqname} (id) values(0)");
|
||
|
|
} else {
|
||
|
|
$repeat = 0;
|
||
|
|
}
|
||
|
|
} while ($repeat);
|
||
|
|
|
||
|
|
if (DB::isError($result)) {
|
||
|
|
return $this->raiseError($result);
|
||
|
|
}
|
||
|
|
|
||
|
|
$result = $this->query("select id from ${seqname}");
|
||
|
|
if (DB::isError($result)) {
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
|
||
|
|
$row = $result->fetchRow(DB_FETCHMODE_ORDERED);
|
||
|
|
if (DB::isError($row || !$row)) {
|
||
|
|
return $row;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $row[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Creates a new sequence
|
||
|
|
*
|
||
|
|
* @param string $seq_name name of the new sequence
|
||
|
|
*
|
||
|
|
* @return int DB_OK on success. A DB_Error object on failure.
|
||
|
|
*
|
||
|
|
* @see DB_common::createSequence(), DB_common::getSequenceName(),
|
||
|
|
* DB_odbc::nextID(), DB_odbc::dropSequence()
|
||
|
|
*/
|
||
|
|
function createSequence($seq_name)
|
||
|
|
{
|
||
|
|
return $this->query('CREATE TABLE '
|
||
|
|
. $this->getSequenceName($seq_name)
|
||
|
|
. ' (id integer NOT NULL,'
|
||
|
|
. ' PRIMARY KEY(id))');
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ dropSequence()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Deletes a sequence
|
||
|
|
*
|
||
|
|
* @param string $seq_name name of the sequence to be deleted
|
||
|
|
*
|
||
|
|
* @return int DB_OK on success. A DB_Error object on failure.
|
||
|
|
*
|
||
|
|
* @see DB_common::dropSequence(), DB_common::getSequenceName(),
|
||
|
|
* DB_odbc::nextID(), DB_odbc::createSequence()
|
||
|
|
*/
|
||
|
|
function dropSequence($seq_name)
|
||
|
|
{
|
||
|
|
return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name));
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ autoCommit()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Enables or disables automatic commits
|
||
|
|
*
|
||
|
|
* @param bool $onoff true turns it on, false turns it off
|
||
|
|
*
|
||
|
|
* @return int DB_OK on success. A DB_Error object if the driver
|
||
|
|
* doesn't support auto-committing transactions.
|
||
|
|
*/
|
||
|
|
function autoCommit($onoff = false)
|
||
|
|
{
|
||
|
|
if (!@odbc_autocommit($this->connection, $onoff)) {
|
||
|
|
return $this->odbcRaiseError();
|
||
|
|
}
|
||
|
|
return DB_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ commit()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Commits the current transaction
|
||
|
|
*
|
||
|
|
* @return int DB_OK on success. A DB_Error object on failure.
|
||
|
|
*/
|
||
|
|
function commit()
|
||
|
|
{
|
||
|
|
if (!@odbc_commit($this->connection)) {
|
||
|
|
return $this->odbcRaiseError();
|
||
|
|
}
|
||
|
|
return DB_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ rollback()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Reverts the current transaction
|
||
|
|
*
|
||
|
|
* @return int DB_OK on success. A DB_Error object on failure.
|
||
|
|
*/
|
||
|
|
function rollback()
|
||
|
|
{
|
||
|
|
if (!@odbc_rollback($this->connection)) {
|
||
|
|
return $this->odbcRaiseError();
|
||
|
|
}
|
||
|
|
return DB_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ odbcRaiseError()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Produces a DB_Error object regarding the current problem
|
||
|
|
*
|
||
|
|
* @param int $errno if the error is being manually raised pass a
|
||
|
|
* DB_ERROR* constant here. If this isn't passed
|
||
|
|
* the error information gathered from the DBMS.
|
||
|
|
*
|
||
|
|
* @return object the DB_Error object
|
||
|
|
*
|
||
|
|
* @see DB_common::raiseError(),
|
||
|
|
* DB_odbc::errorNative(), DB_common::errorCode()
|
||
|
|
*/
|
||
|
|
function odbcRaiseError($errno = null)
|
||
|
|
{
|
||
|
|
if ($errno === null) {
|
||
|
|
switch ($this->dbsyntax) {
|
||
|
|
case 'access':
|
||
|
|
if ($this->options['portability'] & DB_PORTABILITY_ERRORS) {
|
||
|
|
$this->errorcode_map['07001'] = DB_ERROR_NOSUCHFIELD;
|
||
|
|
} else {
|
||
|
|
// Doing this in case mode changes during runtime.
|
||
|
|
$this->errorcode_map['07001'] = DB_ERROR_MISMATCH;
|
||
|
|
}
|
||
|
|
|
||
|
|
$native_code = odbc_error($this->connection);
|
||
|
|
|
||
|
|
// S1000 is for "General Error." Let's be more specific.
|
||
|
|
if ($native_code == 'S1000') {
|
||
|
|
$errormsg = odbc_errormsg($this->connection);
|
||
|
|
static $error_regexps;
|
||
|
|
if (!isset($error_regexps)) {
|
||
|
|
$error_regexps = array(
|
||
|
|
'/includes related records.$/i' => DB_ERROR_CONSTRAINT,
|
||
|
|
'/cannot contain a Null value/i' => DB_ERROR_CONSTRAINT_NOT_NULL,
|
||
|
|
);
|
||
|
|
}
|
||
|
|
foreach ($error_regexps as $regexp => $code) {
|
||
|
|
if (preg_match($regexp, $errormsg)) {
|
||
|
|
return $this->raiseError($code,
|
||
|
|
null, null, null,
|
||
|
|
$native_code . ' ' . $errormsg);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$errno = DB_ERROR;
|
||
|
|
} else {
|
||
|
|
$errno = $this->errorCode($native_code);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
$errno = $this->errorCode(odbc_error($this->connection));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $this->raiseError($errno, null, null, null,
|
||
|
|
$this->errorNative());
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ errorNative()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets the DBMS' native error code and message produced by the last query
|
||
|
|
*
|
||
|
|
* @return string the DBMS' error code and message
|
||
|
|
*/
|
||
|
|
function errorNative()
|
||
|
|
{
|
||
|
|
if (!is_resource($this->connection)) {
|
||
|
|
return @odbc_error() . ' ' . @odbc_errormsg();
|
||
|
|
}
|
||
|
|
return @odbc_error($this->connection) . ' ' . @odbc_errormsg($this->connection);
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ tableInfo()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns information about a table or a result set
|
||
|
|
*
|
||
|
|
* @param object|string $result DB_result object from a query or a
|
||
|
|
* string containing the name of a table.
|
||
|
|
* While this also accepts a query result
|
||
|
|
* resource identifier, this behavior is
|
||
|
|
* deprecated.
|
||
|
|
* @param int $mode a valid tableInfo mode
|
||
|
|
*
|
||
|
|
* @return array an associative array with the information requested.
|
||
|
|
* A DB_Error object on failure.
|
||
|
|
*
|
||
|
|
* @see DB_common::tableInfo()
|
||
|
|
* @since Method available since Release 1.7.0
|
||
|
|
*/
|
||
|
|
function tableInfo($result, $mode = null)
|
||
|
|
{
|
||
|
|
if (is_string($result)) {
|
||
|
|
/*
|
||
|
|
* Probably received a table name.
|
||
|
|
* Create a result resource identifier.
|
||
|
|
*/
|
||
|
|
$id = @odbc_exec($this->connection, "SELECT * FROM $result");
|
||
|
|
if (!$id) {
|
||
|
|
return $this->odbcRaiseError();
|
||
|
|
}
|
||
|
|
$got_string = true;
|
||
|
|
} elseif (isset($result->result)) {
|
||
|
|
/*
|
||
|
|
* Probably received a result object.
|
||
|
|
* Extract the result resource identifier.
|
||
|
|
*/
|
||
|
|
$id = $result->result;
|
||
|
|
$got_string = false;
|
||
|
|
} else {
|
||
|
|
/*
|
||
|
|
* Probably received a result resource identifier.
|
||
|
|
* Copy it.
|
||
|
|
* Deprecated. Here for compatibility only.
|
||
|
|
*/
|
||
|
|
$id = $result;
|
||
|
|
$got_string = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!is_resource($id)) {
|
||
|
|
return $this->odbcRaiseError(DB_ERROR_NEED_MORE_DATA);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
|
||
|
|
$case_func = 'strtolower';
|
||
|
|
} else {
|
||
|
|
$case_func = 'strval';
|
||
|
|
}
|
||
|
|
|
||
|
|
$count = @odbc_num_fields($id);
|
||
|
|
$res = array();
|
||
|
|
|
||
|
|
if ($mode) {
|
||
|
|
$res['num_fields'] = $count;
|
||
|
|
}
|
||
|
|
|
||
|
|
for ($i = 0; $i < $count; $i++) {
|
||
|
|
$col = $i + 1;
|
||
|
|
$res[$i] = array(
|
||
|
|
'table' => $got_string ? $case_func($result) : '',
|
||
|
|
'name' => $case_func(@odbc_field_name($id, $col)),
|
||
|
|
'type' => @odbc_field_type($id, $col),
|
||
|
|
'len' => @odbc_field_len($id, $col),
|
||
|
|
'flags' => '',
|
||
|
|
);
|
||
|
|
if ($mode & DB_TABLEINFO_ORDER) {
|
||
|
|
$res['order'][$res[$i]['name']] = $i;
|
||
|
|
}
|
||
|
|
if ($mode & DB_TABLEINFO_ORDERTABLE) {
|
||
|
|
$res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// free the result only if we were called on a table
|
||
|
|
if ($got_string) {
|
||
|
|
@odbc_free_result($id);
|
||
|
|
}
|
||
|
|
return $res;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ getSpecialQuery()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Obtains the query string needed for listing a given type of objects
|
||
|
|
*
|
||
|
|
* Thanks to symbol1@gmail.com and Philippe.Jausions@11abacus.com.
|
||
|
|
*
|
||
|
|
* @param string $type the kind of objects you want to retrieve
|
||
|
|
*
|
||
|
|
* @return string the list of objects requested
|
||
|
|
*
|
||
|
|
* @access protected
|
||
|
|
* @see DB_common::getListOf()
|
||
|
|
* @since Method available since Release 1.7.0
|
||
|
|
*/
|
||
|
|
function getSpecialQuery($type)
|
||
|
|
{
|
||
|
|
switch ($type) {
|
||
|
|
case 'databases':
|
||
|
|
if (!function_exists('odbc_data_source')) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
$res = @odbc_data_source($this->connection, SQL_FETCH_FIRST);
|
||
|
|
if (is_array($res)) {
|
||
|
|
$out = array($res['server']);
|
||
|
|
while($res = @odbc_data_source($this->connection,
|
||
|
|
SQL_FETCH_NEXT))
|
||
|
|
{
|
||
|
|
$out[] = $res['server'];
|
||
|
|
}
|
||
|
|
return $out;
|
||
|
|
} else {
|
||
|
|
return $this->odbcRaiseError();
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case 'tables':
|
||
|
|
case 'schema.tables':
|
||
|
|
$keep = 'TABLE';
|
||
|
|
break;
|
||
|
|
case 'views':
|
||
|
|
$keep = 'VIEW';
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Removing non-conforming items in the while loop rather than
|
||
|
|
* in the odbc_tables() call because some backends choke on this:
|
||
|
|
* odbc_tables($this->connection, '', '', '', 'TABLE')
|
||
|
|
*/
|
||
|
|
$res = @odbc_tables($this->connection);
|
||
|
|
if (!$res) {
|
||
|
|
return $this->odbcRaiseError();
|
||
|
|
}
|
||
|
|
$out = array();
|
||
|
|
while ($row = odbc_fetch_array($res)) {
|
||
|
|
if ($row['TABLE_TYPE'] != $keep) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
if ($type == 'schema.tables') {
|
||
|
|
$out[] = $row['TABLE_SCHEM'] . '.' . $row['TABLE_NAME'];
|
||
|
|
} else {
|
||
|
|
$out[] = $row['TABLE_NAME'];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $out;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Local variables:
|
||
|
|
* tab-width: 4
|
||
|
|
* c-basic-offset: 4
|
||
|
|
* End:
|
||
|
|
*/
|
||
|
|
|
||
|
|
?>
|