diff options
| author | alecpl <alec@alec.pl> | 2010-01-26 13:45:16 +0000 |
|---|---|---|
| committer | alecpl <alec@alec.pl> | 2010-01-26 13:45:16 +0000 |
| commit | 2273d4117fd50ee44dcdaa28fd6444383dc403a0 (patch) | |
| tree | dc9d429523d816ab8d1d65547f300e4e97fac387 /program/lib/MDB2/Driver/mssql.php | |
| parent | 8f85e3759c4eb4b61e8aab2dd4071e429deb81a3 (diff) | |
- Add support for MDB2's 'sqlsrv' driver (#1486395)
Diffstat (limited to 'program/lib/MDB2/Driver/mssql.php')
| -rw-r--r-- | program/lib/MDB2/Driver/mssql.php | 2296 |
1 files changed, 1173 insertions, 1123 deletions
diff --git a/program/lib/MDB2/Driver/mssql.php b/program/lib/MDB2/Driver/mssql.php index 46cb78197..3e45fef8c 100644 --- a/program/lib/MDB2/Driver/mssql.php +++ b/program/lib/MDB2/Driver/mssql.php @@ -1,1124 +1,1174 @@ -<?php
-// vim: set et ts=4 sw=4 fdm=marker:
-// +----------------------------------------------------------------------+
-// | PHP versions 4 and 5 |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1998-2008 Manuel Lemos, Tomas V.V.Cox, |
-// | Stig. S. Bakken, Lukas Smith, Frank M. Kromann |
-// | All rights reserved. |
-// +----------------------------------------------------------------------+
-// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB |
-// | API as well as database abstraction for PHP applications. |
-// | This LICENSE is in the BSD license style. |
-// | |
-// | Redistribution and use in source and binary forms, with or without |
-// | modification, are permitted provided that the following conditions |
-// | are met: |
-// | |
-// | Redistributions of source code must retain the above copyright |
-// | notice, this list of conditions and the following disclaimer. |
-// | |
-// | Redistributions in binary form must reproduce the above copyright |
-// | notice, this list of conditions and the following disclaimer in the |
-// | documentation and/or other materials provided with the distribution. |
-// | |
-// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
-// | Lukas Smith nor the names of his contributors may be used to endorse |
-// | or promote products derived from this software without specific prior|
-// | written permission. |
-// | |
-// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
-// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
-// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
-// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
-// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
-// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
-// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
-// | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
-// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
-// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
-// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
-// | POSSIBILITY OF SUCH DAMAGE. |
-// +----------------------------------------------------------------------+
-// | Author: Frank M. Kromann <frank@kromann.info> |
-// +----------------------------------------------------------------------+
-//
-// $Id: mssql.php,v 1.174 2008/03/08 14:18:39 quipo Exp $
-//
-// {{{ Class MDB2_Driver_mssql
-/**
- * MDB2 MSSQL Server driver
- *
- * @package MDB2
- * @category Database
- * @author Frank M. Kromann <frank@kromann.info>
- */
-class MDB2_Driver_mssql extends MDB2_Driver_Common
-{
- // {{{ properties
-
- var $string_quoting = array('start' => "'", 'end' => "'", 'escape' => "'", 'escape_pattern' => false);
-
- var $identifier_quoting = array('start' => '[', 'end' => ']', 'escape' => ']');
-
- // }}}
- // {{{ constructor
-
- /**
- * Constructor
- */
- function __construct()
- {
- parent::__construct();
-
- $this->phptype = 'mssql';
- $this->dbsyntax = 'mssql';
-
- $this->supported['sequences'] = 'emulated';
- $this->supported['indexes'] = true;
- $this->supported['affected_rows'] = true;
- $this->supported['transactions'] = true;
- $this->supported['savepoints'] = false;
- $this->supported['summary_functions'] = true;
- $this->supported['order_by_text'] = true;
- $this->supported['current_id'] = 'emulated';
- $this->supported['limit_queries'] = 'emulated';
- $this->supported['LOBs'] = true;
- $this->supported['replace'] = 'emulated';
- $this->supported['sub_selects'] = true;
- $this->supported['triggers'] = true;
- $this->supported['auto_increment'] = true;
- $this->supported['primary_key'] = true;
- $this->supported['result_introspection'] = true;
- $this->supported['prepared_statements'] = 'emulated';
- $this->supported['pattern_escaping'] = true;
- $this->supported['new_link'] = true;
-
- $this->options['DBA_username'] = false;
- $this->options['DBA_password'] = false;
- $this->options['database_device'] = false;
- $this->options['database_size'] = false;
- $this->options['max_identifiers_length'] = 128; // MS Access: 64
- }
-
- // }}}
- // {{{ errorInfo()
-
- /**
- * This method is used to collect information about an error
- *
- * @param integer $error
- * @return array
- * @access public
- */
- function errorInfo($error = null, $connection = null)
- {
- if (is_null($connection)) {
- $connection = $this->connection;
- }
-
- $native_code = null;
- if ($connection) {
- $result = @mssql_query('select @@ERROR as ErrorCode', $connection);
- if ($result) {
- $native_code = @mssql_result($result, 0, 0);
- @mssql_free_result($result);
- }
- }
- $native_msg = @mssql_get_last_message();
- if (is_null($error)) {
- static $ecode_map;
- if (empty($ecode_map)) {
- $ecode_map = array(
- 102 => MDB2_ERROR_SYNTAX,
- 110 => MDB2_ERROR_VALUE_COUNT_ON_ROW,
- 155 => MDB2_ERROR_NOSUCHFIELD,
- 156 => MDB2_ERROR_SYNTAX,
- 170 => MDB2_ERROR_SYNTAX,
- 207 => MDB2_ERROR_NOSUCHFIELD,
- 208 => MDB2_ERROR_NOSUCHTABLE,
- 245 => MDB2_ERROR_INVALID_NUMBER,
- 319 => MDB2_ERROR_SYNTAX,
- 321 => MDB2_ERROR_NOSUCHFIELD,
- 325 => MDB2_ERROR_SYNTAX,
- 336 => MDB2_ERROR_SYNTAX,
- 515 => MDB2_ERROR_CONSTRAINT_NOT_NULL,
- 547 => MDB2_ERROR_CONSTRAINT,
- 911 => MDB2_ERROR_NOT_FOUND,
- 1018 => MDB2_ERROR_SYNTAX,
- 1035 => MDB2_ERROR_SYNTAX,
- 1801 => MDB2_ERROR_ALREADY_EXISTS,
- 1913 => MDB2_ERROR_ALREADY_EXISTS,
- 2209 => MDB2_ERROR_SYNTAX,
- 2223 => MDB2_ERROR_SYNTAX,
- 2248 => MDB2_ERROR_SYNTAX,
- 2256 => MDB2_ERROR_SYNTAX,
- 2257 => MDB2_ERROR_SYNTAX,
- 2627 => MDB2_ERROR_CONSTRAINT,
- 2714 => MDB2_ERROR_ALREADY_EXISTS,
- 3607 => MDB2_ERROR_DIVZERO,
- 3701 => MDB2_ERROR_NOSUCHTABLE,
- 7630 => MDB2_ERROR_SYNTAX,
- 8134 => MDB2_ERROR_DIVZERO,
- 9303 => MDB2_ERROR_SYNTAX,
- 9317 => MDB2_ERROR_SYNTAX,
- 9318 => MDB2_ERROR_SYNTAX,
- 9331 => MDB2_ERROR_SYNTAX,
- 9332 => MDB2_ERROR_SYNTAX,
- 15253 => MDB2_ERROR_SYNTAX,
- );
- }
- if (isset($ecode_map[$native_code])) {
- if ($native_code == 3701
- && preg_match('/Cannot drop the index/i', $native_msg)
- ) {
- $error = MDB2_ERROR_NOT_FOUND;
- } else {
- $error = $ecode_map[$native_code];
- }
- }
- }
- return array($error, $native_code, $native_msg);
- }
-
- // }}}
- // {{{ function escapePattern($text)
-
- /**
- * Quotes pattern (% and _) characters in a string)
- *
- * @param string the input string to quote
- *
- * @return string quoted string
- *
- * @access public
- */
- function escapePattern($text)
- {
- $text = str_replace("[", "[ [ ]", $text);
- foreach ($this->wildcards as $wildcard) {
- $text = str_replace($wildcard, '[' . $wildcard . ']', $text);
- }
- return $text;
- }
-
- // }}}
- // {{{ beginTransaction()
-
- /**
- * Start a transaction or set a savepoint.
- *
- * @param string name of a savepoint to set
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- */
- function beginTransaction($savepoint = null)
- {
- $this->debug('Starting transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
- if (!is_null($savepoint)) {
- if (!$this->in_transaction) {
- return $this->raiseError(MDB2_ERROR_INVALID, null, null,
- 'savepoint cannot be released when changes are auto committed', __FUNCTION__);
- }
- $query = 'SAVE TRANSACTION '.$savepoint;
- return $this->_doQuery($query, true);
- } elseif ($this->in_transaction) {
- return MDB2_OK; //nothing to do
- }
- if (!$this->destructor_registered && $this->opened_persistent) {
- $this->destructor_registered = true;
- register_shutdown_function('MDB2_closeOpenTransactions');
- }
- $result =& $this->_doQuery('BEGIN TRANSACTION', true);
- if (PEAR::isError($result)) {
- return $result;
- }
- $this->in_transaction = true;
- return MDB2_OK;
- }
-
- // }}}
- // {{{ commit()
-
- /**
- * Commit the database changes done during a transaction that is in
- * progress or release a savepoint. This function may only be called when
- * auto-committing is disabled, otherwise it will fail. Therefore, a new
- * transaction is implicitly started after committing the pending changes.
- *
- * @param string name of a savepoint to release
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- */
- function commit($savepoint = null)
- {
- $this->debug('Committing transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
- if (!$this->in_transaction) {
- return $this->raiseError(MDB2_ERROR_INVALID, null, null,
- 'commit/release savepoint cannot be done changes are auto committed', __FUNCTION__);
- }
- if (!is_null($savepoint)) {
- return MDB2_OK;
- }
-
- $result =& $this->_doQuery('COMMIT TRANSACTION', true);
- if (PEAR::isError($result)) {
- return $result;
- }
- $this->in_transaction = false;
- return MDB2_OK;
- }
-
- // }}}
- // {{{ rollback()
-
- /**
- * Cancel any database changes done during a transaction or since a specific
- * savepoint that is in progress. This function may only be called when
- * auto-committing is disabled, otherwise it will fail. Therefore, a new
- * transaction is implicitly started after canceling the pending changes.
- *
- * @param string name of a savepoint to rollback to
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- */
- function rollback($savepoint = null)
- {
- $this->debug('Rolling back transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
- if (!$this->in_transaction) {
- return $this->raiseError(MDB2_ERROR_INVALID, null, null,
- 'rollback cannot be done changes are auto committed', __FUNCTION__);
- }
- if (!is_null($savepoint)) {
- $query = 'ROLLBACK TRANSACTION '.$savepoint;
- return $this->_doQuery($query, true);
- }
-
- $result =& $this->_doQuery('ROLLBACK TRANSACTION', true);
- if (PEAR::isError($result)) {
- return $result;
- }
- $this->in_transaction = false;
- return MDB2_OK;
- }
-
- // }}}
- // {{{ _doConnect()
-
- /**
- * do the grunt work of the connect
- *
- * @return connection on success or MDB2 Error Object on failure
- * @access protected
- */
- function _doConnect($username, $password, $persistent = false)
- {
- if (!PEAR::loadExtension($this->phptype) && !PEAR::loadExtension('sybase_ct')) {
- return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
- 'extension '.$this->phptype.' is not compiled into PHP', __FUNCTION__);
- }
-
- $params = array(
- $this->dsn['hostspec'] ? $this->dsn['hostspec'] : 'localhost',
- $username ? $username : null,
- $password ? $password : null,
- );
- if ($this->dsn['port']) {
- $params[0].= ((substr(PHP_OS, 0, 3) == 'WIN') ? ',' : ':').$this->dsn['port'];
- }
- if (!$persistent) {
- if (isset($this->dsn['new_link'])
- && ($this->dsn['new_link'] == 'true' || $this->dsn['new_link'] === true)
- ) {
- $params[] = true;
- } else {
- $params[] = false;
- }
- }
-
- $connect_function = $persistent ? 'mssql_pconnect' : 'mssql_connect';
-
- $connection = @call_user_func_array($connect_function, $params);
- if ($connection <= 0) {
- return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null,
- 'unable to establish a connection', __FUNCTION__, __FUNCTION__);
- }
-
- @mssql_query('SET ANSI_NULL_DFLT_ON ON', $connection);
-
-/* - if (!empty($this->dsn['charset'])) {
- $result = $this->setCharset($this->dsn['charset'], $connection);
- if (PEAR::isError($result)) {
- return $result;
- }
- }
-*/ -
- if ((bool)ini_get('mssql.datetimeconvert')) {
- @ini_set('mssql.datetimeconvert', '0');
- }
-
- if (empty($this->dsn['disable_iso_date'])) {
- @mssql_query('SET DATEFORMAT ymd', $connection);
- }
-
- return $connection;
- }
-
- // }}}
- // {{{ connect()
-
- /**
- * Connect to the database
- *
- * @return true on success, MDB2 Error Object on failure
- */
- function connect()
- {
- if (is_resource($this->connection)) {
- //if (count(array_diff($this->connected_dsn, $this->dsn)) == 0
- if (MDB2::areEquals($this->connected_dsn, $this->dsn)
- && $this->opened_persistent == $this->options['persistent']
- ) {
- return MDB2_OK;
- }
- $this->disconnect(false);
- }
-
- $connection = $this->_doConnect(
- $this->dsn['username'],
- $this->dsn['password'],
- $this->options['persistent']
- );
- if (PEAR::isError($connection)) {
- return $connection;
- }
-
- $this->connection = $connection;
- $this->connected_dsn = $this->dsn;
- $this->connected_database_name = '';
- $this->opened_persistent = $this->options['persistent'];
- $this->dbsyntax = $this->dsn['dbsyntax'] ? $this->dsn['dbsyntax'] : $this->phptype;
-
- if ($this->database_name) {
- if ($this->database_name != $this->connected_database_name) {
- if (!@mssql_select_db($this->database_name, $connection)) {
- $err = $this->raiseError(null, null, null,
- 'Could not select the database: '.$this->database_name, __FUNCTION__);
- return $err;
- }
- $this->connected_database_name = $this->database_name;
- }
- }
-
- return MDB2_OK;
- }
-
- // }}}
- // {{{ databaseExists()
-
- /**
- * check if given database name is exists?
- *
- * @param string $name name of the database that should be checked
- *
- * @return mixed true/false on success, a MDB2 error on failure
- * @access public
- */
- function databaseExists($name)
- {
- $connection = $this->_doConnect($this->dsn['username'],
- $this->dsn['password'],
- $this->options['persistent']);
- if (PEAR::isError($connection)) {
- return $connection;
- }
-
- $result = @mssql_select_db($name, $connection);
- $errorInfo = $this->errorInfo(null, $connection);
- @mssql_close($connection);
- if (!$result) {
- if ($errorInfo[0] != MDB2_ERROR_NOT_FOUND) {
- exit;
- $result = $this->raiseError($errorInfo[0], null, null, $errorInfo[2], __FUNCTION__);
- return $result;
- }
- $result = false;
- }
-
- return $result;
- }
-
- // }}}
- // {{{ disconnect()
-
- /**
- * Log out and disconnect from the database.
- *
- * @param boolean $force if the disconnect should be forced even if the
- * connection is opened persistently
- * @return mixed true on success, false if not connected and error
- * object on error
- * @access public
- */
- function disconnect($force = true)
- {
- if (is_resource($this->connection)) {
- if ($this->in_transaction) {
- $dsn = $this->dsn;
- $database_name = $this->database_name;
- $persistent = $this->options['persistent'];
- $this->dsn = $this->connected_dsn;
- $this->database_name = $this->connected_database_name;
- $this->options['persistent'] = $this->opened_persistent;
- $this->rollback();
- $this->dsn = $dsn;
- $this->database_name = $database_name;
- $this->options['persistent'] = $persistent;
- }
-
- if (!$this->opened_persistent || $force) {
- @mssql_close($this->connection);
- }
- }
- return parent::disconnect($force);
- }
-
- // }}}
- // {{{ standaloneQuery()
-
- /**
- * execute a query as DBA
- *
- * @param string $query the SQL query
- * @param mixed $types array that contains the types of the columns in
- * the result set
- * @param boolean $is_manip if the query is a manipulation query
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function &standaloneQuery($query, $types = null, $is_manip = false)
- {
- $user = $this->options['DBA_username']? $this->options['DBA_username'] : $this->dsn['username'];
- $pass = $this->options['DBA_password']? $this->options['DBA_password'] : $this->dsn['password'];
- $connection = $this->_doConnect($user, $pass, $this->options['persistent']);
- if (PEAR::isError($connection)) {
- return $connection;
- }
-
- $offset = $this->offset;
- $limit = $this->limit;
- $this->offset = $this->limit = 0;
- $query = $this->_modifyQuery($query, $is_manip, $limit, $offset);
-
- $result =& $this->_doQuery($query, $is_manip, $connection, $this->database_name);
- if (!PEAR::isError($result)) {
- $result = $this->_affectedRows($connection, $result);
- }
-
- @mssql_close($connection);
- return $result;
- }
-
- // }}}
- // {{{ _doQuery()
-
- /**
- * Execute a query
- * @param string $query query
- * @param boolean $is_manip if the query is a manipulation query
- * @param resource $connection
- * @param string $database_name
- * @return result or error object
- * @access protected
- */
- function &_doQuery($query, $is_manip = false, $connection = null, $database_name = null)
- {
- $this->last_query = $query;
- $result = $this->debug($query, 'query', array('is_manip' => $is_manip, 'when' => 'pre'));
- if ($result) {
- if (PEAR::isError($result)) {
- return $result;
- }
- $query = $result;
- }
- if ($this->options['disable_query']) {
- $result = $is_manip ? 0 : null;
- return $result;
- }
-
- if (is_null($connection)) {
- $connection = $this->getConnection();
- if (PEAR::isError($connection)) {
- return $connection;
- }
- }
- if (is_null($database_name)) {
- $database_name = $this->database_name;
- }
-
- if ($database_name) {
- if ($database_name != $this->connected_database_name) {
- if (!@mssql_select_db($database_name, $connection)) {
- $err = $this->raiseError(null, null, null,
- 'Could not select the database: '.$database_name, __FUNCTION__);
- return $err;
- }
- $this->connected_database_name = $database_name;
- }
- }
-
- $result = @mssql_query($query, $connection);
- if (!$result) {
- $err =& $this->raiseError(null, null, null,
- 'Could not execute statement', __FUNCTION__);
- return $err;
- }
-
- $this->debug($query, 'query', array('is_manip' => $is_manip, 'when' => 'post', 'result' => $result));
- return $result;
- }
-
- // }}}
- // {{{ _affectedRows()
-
- /**
- * Returns the number of rows affected
- *
- * @param resource $result
- * @param resource $connection
- * @return mixed MDB2 Error Object or the number of rows affected
- * @access private
- */
- function _affectedRows($connection, $result = null)
- {
- if (is_null($connection)) {
- $connection = $this->getConnection();
- if (PEAR::isError($connection)) {
- return $connection;
- }
- }
- return @mssql_rows_affected($connection);
- }
-
- // }}}
- // {{{ _modifyQuery()
-
- /**
- * Changes a query string for various DBMS specific reasons
- *
- * @param string $query query to modify
- * @param boolean $is_manip if it is a DML query
- * @param integer $limit limit the number of rows
- * @param integer $offset start reading from given offset
- * @return string modified query
- * @access protected
- */
- function _modifyQuery($query, $is_manip, $limit, $offset)
- {
- if ($limit > 0) {
- $fetch = $offset + $limit;
- if (!$is_manip) {
- return preg_replace('/^([\s(])*SELECT( DISTINCT)?(?!\s*TOP\s*\()/i',
- "\\1SELECT\\2 TOP $fetch", $query);
- }
- }
- return $query;
- }
-
- // }}}
- // {{{ getServerVersion()
-
- /**
- * return version information about the server
- *
- * @param bool $native determines if the raw version string should be returned
- * @return mixed array/string with version information or MDB2 error object
- * @access public
- */
- function getServerVersion($native = false)
- {
- if ($this->connected_server_info) {
- $server_info = $this->connected_server_info;
- } else {
- $query = 'SELECT @@VERSION';
- $server_info = $this->queryOne($query, 'text');
- if (PEAR::isError($server_info)) {
- return $server_info;
- }
- }
- // cache server_info
- $this->connected_server_info = $server_info;
- if (!$native && !PEAR::isError($server_info)) {
- if (preg_match('/(\d+)\.(\d+)\.(\d+)/', $server_info, $tmp)) {
- $server_info = array(
- 'major' => $tmp[1],
- 'minor' => $tmp[2],
- 'patch' => $tmp[3],
- 'extra' => null,
- 'native' => $server_info,
- );
- } else {
- $server_info = array(
- 'major' => null,
- 'minor' => null,
- 'patch' => null,
- 'extra' => null,
- 'native' => $server_info,
- );
- }
- }
- return $server_info;
- }
-
- // }}}
- // {{{ _checkSequence
-
- /**
- * Checks if there's a sequence that exists.
- *
- * @param string $seq_name The sequence name to verify.
- * @return bool $tableExists The value if the table exists or not
- * @access private
- */
- function _checkSequence($seq_name)
- {
- $query = "SELECT * FROM $seq_name";
- $tableExists =& $this->_doQuery($query, true);
- if (PEAR::isError($tableExists)) {
- if ($tableExists->getCode() == MDB2_ERROR_NOSUCHTABLE) {
- return false;
- }
- //return $tableExists;
- return false;
- }
- return mssql_result($tableExists, 0, 0);
- }
-
- // }}}
- // {{{ nextID()
-
- /**
- * Returns the next free id of a sequence
- *
- * @param string $seq_name name of the sequence
- * @param boolean $ondemand when true the sequence is
- * automatic created, if it
- * not exists
- *
- * @return mixed MDB2 Error Object or id
- * @access public
- */
- function nextID($seq_name, $ondemand = true)
- {
- $sequence_name = $this->quoteIdentifier($this->getSequenceName($seq_name), true);
- $seqcol_name = $this->quoteIdentifier($this->options['seqcol_name'], true);
- $this->pushErrorHandling(PEAR_ERROR_RETURN);
- $this->expectError(MDB2_ERROR_NOSUCHTABLE);
-
- $seq_val = $this->_checkSequence($sequence_name);
-
- if ($seq_val) {
- $query = "SET IDENTITY_INSERT $sequence_name OFF ".
- "INSERT INTO $sequence_name DEFAULT VALUES";
- } else {
- $query = "INSERT INTO $sequence_name ($seqcol_name) VALUES (0)";
- }
- $result =& $this->_doQuery($query, true);
- $this->popExpect();
- $this->popErrorHandling();
- if (PEAR::isError($result)) {
- if ($ondemand && !$this->_checkSequence($sequence_name)) {
- $this->loadModule('Manager', null, true);
- $result = $this->manager->createSequence($seq_name);
- if (PEAR::isError($result)) {
- return $this->raiseError($result, null, null,
- 'on demand sequence '.$seq_name.' could not be created', __FUNCTION__);
- } else {
- /**
- * Little off-by-one problem with the sequence emulation
- * here being fixed, that instead of re-calling nextID
- * and forcing an increment by one, we simply check if it
- * exists, then we get the last inserted id if it does.
- *
- * In theory, $seq_name should be created otherwise there would
- * have been an error thrown somewhere up there..
- *
- * @todo confirm
- */
- if ($this->_checkSequence($seq_name)) {
- return $this->lastInsertID($seq_name);
- }
-
- return $this->nextID($seq_name, false);
- }
- }
- return $result;
- }
- $value = $this->lastInsertID($sequence_name);
- if (is_numeric($value)) {
- $query = "DELETE FROM $sequence_name WHERE $seqcol_name < $value";
- $result =& $this->_doQuery($query, true);
- if (PEAR::isError($result)) {
- $this->warnings[] = 'nextID: could not delete previous sequence table values from '.$seq_name;
- }
- }
- return $value;
- }
-
- // }}}
- // {{{ lastInsertID()
-
- /**
- * Returns the autoincrement ID if supported or $id or fetches the current
- * ID in a sequence called: $table.(empty($field) ? '' : '_'.$field)
- *
- * @param string $table name of the table into which a new row was inserted
- * @param string $field name of the field into which a new row was inserted
- *
- * @return mixed MDB2 Error Object or id
- * @access public
- */
- function lastInsertID($table = null, $field = null)
- {
- $server_info = $this->getServerVersion();
- if (is_array($server_info) && !is_null($server_info['major'])
- && $server_info['major'] >= 8
- ) {
- $query = "SELECT IDENT_CURRENT('$table')";
- } else {
- $query = "SELECT @@IDENTITY";
- if (!is_null($table)) {
- $query .= ' FROM '.$this->quoteIdentifier($table, true);
- }
- }
-
- return $this->queryOne($query, 'integer');
- }
-
- // }}}
-}
-
-// }}}
-// {{{ Class MDB2_Result_mssql
-
-/**
- * MDB2 MSSQL Server result driver
- *
- * @package MDB2
- * @category Database
- * @author Frank M. Kromann <frank@kromann.info>
- */
-class MDB2_Result_mssql extends MDB2_Result_Common
-{
- // {{{ _skipLimitOffset()
-
- /**
- * Skip the first row of a result set.
- *
- * @param resource $result
- * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
- * @access protected
- */
- function _skipLimitOffset()
- {
- if ($this->limit) {
- if ($this->rownum >= $this->limit) {
- return false;
- }
- }
- if ($this->offset) {
- while ($this->offset_count < $this->offset) {
- ++$this->offset_count;
- if (!is_array(@mssql_fetch_row($this->result))) {
- $this->offset_count = $this->limit;
- return false;
- }
- }
- }
- return MDB2_OK;
- }
-
- // }}}
- // {{{ fetchRow()
-
- /**
- * Fetch a row and insert the data into an existing array.
- *
- * @param int $fetchmode how the array data should be indexed
- * @param int $rownum number of the row where the data can be found
- * @return int data array on success, a MDB2 error on failure
- * @access public
- */
- function &fetchRow($fetchmode = MDB2_FETCHMODE_DEFAULT, $rownum = null)
- {
- if (!$this->_skipLimitOffset()) {
- $null = null;
- return $null;
- }
- if (!is_null($rownum)) {
- $seek = $this->seek($rownum);
- if (PEAR::isError($seek)) {
- return $seek;
- }
- }
- if ($fetchmode == MDB2_FETCHMODE_DEFAULT) {
- $fetchmode = $this->db->fetchmode;
- }
- if ($fetchmode & MDB2_FETCHMODE_ASSOC) {
- $row = @mssql_fetch_assoc($this->result);
- if (is_array($row)
- && $this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE
- ) {
- $row = array_change_key_case($row, $this->db->options['field_case']);
- }
- } else {
- $row = @mssql_fetch_row($this->result);
- }
- if (!$row) {
- if ($this->result === false) {
- $err =& $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
- 'resultset has already been freed', __FUNCTION__);
- return $err;
- }
- $null = null;
- return $null;
- }
- $mode = $this->db->options['portability'] & MDB2_PORTABILITY_EMPTY_TO_NULL;
- $rtrim = false;
- if ($this->db->options['portability'] & MDB2_PORTABILITY_RTRIM) {
- if (empty($this->types)) {
- $mode += MDB2_PORTABILITY_RTRIM;
- } else {
- $rtrim = true;
- }
- }
- if ($mode) {
- $this->db->_fixResultArrayValues($row, $mode);
- }
- if (!empty($this->types)) {
- $row = $this->db->datatype->convertResultRow($this->types, $row, $rtrim);
- }
- if (!empty($this->values)) {
- $this->_assignBindColumns($row);
- }
- if ($fetchmode === MDB2_FETCHMODE_OBJECT) {
- $object_class = $this->db->options['fetch_class'];
- if ($object_class == 'stdClass') {
- $row = (object) $row;
- } else {
- $row = new $object_class($row);
- }
- }
- ++$this->rownum;
- return $row;
- }
-
- // }}}
- // {{{ _getColumnNames()
-
- /**
- * Retrieve the names of columns returned by the DBMS in a query result.
- *
- * @return mixed Array variable that holds the names of columns as keys
- * or an MDB2 error on failure.
- * Some DBMS may not return any columns when the result set
- * does not contain any rows.
- * @access private
- */
- function _getColumnNames()
- {
- $columns = array();
- $numcols = $this->numCols();
- if (PEAR::isError($numcols)) {
- return $numcols;
- }
- for ($column = 0; $column < $numcols; $column++) {
- $column_name = @mssql_field_name($this->result, $column);
- $columns[$column_name] = $column;
- }
- if ($this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
- $columns = array_change_key_case($columns, $this->db->options['field_case']);
- }
- return $columns;
- }
-
- // }}}
- // {{{ numCols()
-
- /**
- * Count the number of columns returned by the DBMS in a query result.
- *
- * @return mixed integer value with the number of columns, a MDB2 error
- * on failure
- * @access public
- */
- function numCols()
- {
- $cols = @mssql_num_fields($this->result);
- if (is_null($cols)) {
- if ($this->result === false) {
- return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
- 'resultset has already been freed', __FUNCTION__);
- } elseif (is_null($this->result)) {
- return count($this->types);
- }
- return $this->db->raiseError(null, null, null,
- 'Could not get column count', __FUNCTION__);
- }
- return $cols;
- }
-
- // }}}
- // {{{ nextResult()
-
- /**
- * Move the internal result pointer to the next available result
- *
- * @return true on success, false if there is no more result set or an error object on failure
- * @access public
- */
- function nextResult()
- {
- if ($this->result === false) {
- return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
- 'resultset has already been freed', __FUNCTION__);
- } elseif (is_null($this->result)) {
- return false;
- }
- return @mssql_next_result($this->result);
- }
-
- // }}}
- // {{{ free()
-
- /**
- * Free the internal resources associated with $result.
- *
- * @return boolean true on success, false if $result is invalid
- * @access public
- */
- function free()
- {
- if (is_resource($this->result) && $this->db->connection) {
- $free = @mssql_free_result($this->result);
- if ($free === false) {
- return $this->db->raiseError(null, null, null,
- 'Could not free result', __FUNCTION__);
- }
- }
- $this->result = false;
- return MDB2_OK;
- }
-
- // }}}
-}
-
-// }}}
-// {{{ class MDB2_BufferedResult_mssql
-
-/**
- * MDB2 MSSQL Server buffered result driver
- *
- * @package MDB2
- * @category Database
- * @author Frank M. Kromann <frank@kromann.info>
- */
-class MDB2_BufferedResult_mssql extends MDB2_Result_mssql
-{
- // {{{ seek()
-
- /**
- * Seek to a specific row in a result set
- *
- * @param int $rownum number of the row where the data can be found
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function seek($rownum = 0)
- {
- if ($this->rownum != ($rownum - 1) && !@mssql_data_seek($this->result, $rownum)) {
- if ($this->result === false) {
- return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
- 'resultset has already been freed', __FUNCTION__);
- } elseif (is_null($this->result)) {
- return MDB2_OK;
- }
- return $this->db->raiseError(MDB2_ERROR_INVALID, null, null,
- 'tried to seek to an invalid row number ('.$rownum.')', __FUNCTION__);
- }
- $this->rownum = $rownum - 1;
- return MDB2_OK;
- }
-
- // }}}
- // {{{ valid()
-
- /**
- * Check if the end of the result set has been reached
- *
- * @return mixed true or false on sucess, a MDB2 error on failure
- * @access public
- */
- function valid()
- {
- $numrows = $this->numRows();
- if (PEAR::isError($numrows)) {
- return $numrows;
- }
- return $this->rownum < ($numrows - 1);
- }
-
- // }}}
- // {{{ numRows()
-
- /**
- * Returns the number of rows in a result object
- *
- * @return mixed MDB2 Error Object or the number of rows
- * @access public
- */
- function numRows()
- {
- $rows = @mssql_num_rows($this->result);
- if (is_null($rows)) {
- if ($this->result === false) {
- return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
- 'resultset has already been freed', __FUNCTION__);
- } elseif (is_null($this->result)) {
- return 0;
- }
- return $this->db->raiseError(null, null, null,
- 'Could not get row count', __FUNCTION__);
- }
- if ($this->limit) {
- $rows -= $this->limit -1 + $this->offset;
- if ($rows < 0) {
- $rows = 0;
- }
- }
- return $rows;
- }
-}
-
-// }}}
-// {{{ MDB2_Statement_mssql
-
-/**
- * MDB2 MSSQL Server statement driver
- *
- * @package MDB2
- * @category Database
- * @author Frank M. Kromann <frank@kromann.info>
- */
-class MDB2_Statement_mssql extends MDB2_Statement_Common
-{
-
-}
-
-// }}}
+<?php +// vim: set et ts=4 sw=4 fdm=marker: +// +----------------------------------------------------------------------+ +// | PHP versions 4 and 5 | +// +----------------------------------------------------------------------+ +// | Copyright (c) 1998-2008 Manuel Lemos, Tomas V.V.Cox, | +// | Stig. S. Bakken, Lukas Smith, Frank M. Kromann | +// | All rights reserved. | +// +----------------------------------------------------------------------+ +// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB | +// | API as well as database abstraction for PHP applications. | +// | This LICENSE is in the BSD license style. | +// | | +// | Redistribution and use in source and binary forms, with or without | +// | modification, are permitted provided that the following conditions | +// | are met: | +// | | +// | Redistributions of source code must retain the above copyright | +// | notice, this list of conditions and the following disclaimer. | +// | | +// | Redistributions in binary form must reproduce the above copyright | +// | notice, this list of conditions and the following disclaimer in the | +// | documentation and/or other materials provided with the distribution. | +// | | +// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, | +// | Lukas Smith nor the names of his contributors may be used to endorse | +// | or promote products derived from this software without specific prior| +// | written permission. | +// | | +// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | +// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | +// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | +// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | +// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | +// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | +// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS| +// | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | +// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | +// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY| +// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | +// | POSSIBILITY OF SUCH DAMAGE. | +// +----------------------------------------------------------------------+ +// | Author: Frank M. Kromann <frank@kromann.info> | +// +----------------------------------------------------------------------+ +// +// $Id: mssql.php 292715 2009-12-28 14:06:34Z quipo $ +// +// {{{ Class MDB2_Driver_mssql +/** + * MDB2 MSSQL Server driver + * + * @package MDB2 + * @category Database + * @author Frank M. Kromann <frank@kromann.info> + */ +class MDB2_Driver_mssql extends MDB2_Driver_Common +{ + // {{{ properties + + var $string_quoting = array('start' => "'", 'end' => "'", 'escape' => "'", 'escape_pattern' => false); + + var $identifier_quoting = array('start' => '[', 'end' => ']', 'escape' => ']'); + + // }}} + // {{{ constructor + + /** + * Constructor + */ + function __construct() + { + parent::__construct(); + + $this->phptype = 'mssql'; + $this->dbsyntax = 'mssql'; + + $this->supported['sequences'] = 'emulated'; + $this->supported['indexes'] = true; + $this->supported['affected_rows'] = true; + $this->supported['transactions'] = true; + $this->supported['savepoints'] = false; + $this->supported['summary_functions'] = true; + $this->supported['order_by_text'] = true; + $this->supported['current_id'] = 'emulated'; + $this->supported['limit_queries'] = 'emulated'; + $this->supported['LOBs'] = true; + $this->supported['replace'] = 'emulated'; + $this->supported['sub_selects'] = true; + $this->supported['triggers'] = true; + $this->supported['auto_increment'] = true; + $this->supported['primary_key'] = true; + $this->supported['result_introspection'] = true; + $this->supported['prepared_statements'] = 'emulated'; + $this->supported['pattern_escaping'] = true; + $this->supported['new_link'] = true; + + $this->options['DBA_username'] = false; + $this->options['DBA_password'] = false; + $this->options['database_device'] = false; + $this->options['database_size'] = false; + $this->options['max_identifiers_length'] = 128; // MS Access: 64 + } + + // }}} + // {{{ errorInfo() + + /** + * This method is used to collect information about an error + * + * @param integer $error + * @return array + * @access public + */ + function errorInfo($error = null, $connection = null) + { + if (null === $connection) { + $connection = $this->connection; + } + + $native_code = null; + if ($connection) { + $result = @mssql_query('select @@ERROR as ErrorCode', $connection); + if ($result) { + $native_code = @mssql_result($result, 0, 0); + @mssql_free_result($result); + } + } + $native_msg = @mssql_get_last_message(); + if (null === $error) { + static $ecode_map; + if (empty($ecode_map)) { + $ecode_map = array( + 102 => MDB2_ERROR_SYNTAX, + 110 => MDB2_ERROR_VALUE_COUNT_ON_ROW, + 155 => MDB2_ERROR_NOSUCHFIELD, + 156 => MDB2_ERROR_SYNTAX, + 170 => MDB2_ERROR_SYNTAX, + 207 => MDB2_ERROR_NOSUCHFIELD, + 208 => MDB2_ERROR_NOSUCHTABLE, + 245 => MDB2_ERROR_INVALID_NUMBER, + 319 => MDB2_ERROR_SYNTAX, + 321 => MDB2_ERROR_NOSUCHFIELD, + 325 => MDB2_ERROR_SYNTAX, + 336 => MDB2_ERROR_SYNTAX, + 515 => MDB2_ERROR_CONSTRAINT_NOT_NULL, + 547 => MDB2_ERROR_CONSTRAINT, + 911 => MDB2_ERROR_NOT_FOUND, + 1018 => MDB2_ERROR_SYNTAX, + 1035 => MDB2_ERROR_SYNTAX, + 1801 => MDB2_ERROR_ALREADY_EXISTS, + 1913 => MDB2_ERROR_ALREADY_EXISTS, + 2209 => MDB2_ERROR_SYNTAX, + 2223 => MDB2_ERROR_SYNTAX, + 2248 => MDB2_ERROR_SYNTAX, + 2256 => MDB2_ERROR_SYNTAX, + 2257 => MDB2_ERROR_SYNTAX, + 2627 => MDB2_ERROR_CONSTRAINT, + 2714 => MDB2_ERROR_ALREADY_EXISTS, + 3607 => MDB2_ERROR_DIVZERO, + 3701 => MDB2_ERROR_NOSUCHTABLE, + 7630 => MDB2_ERROR_SYNTAX, + 8134 => MDB2_ERROR_DIVZERO, + 9303 => MDB2_ERROR_SYNTAX, + 9317 => MDB2_ERROR_SYNTAX, + 9318 => MDB2_ERROR_SYNTAX, + 9331 => MDB2_ERROR_SYNTAX, + 9332 => MDB2_ERROR_SYNTAX, + 15253 => MDB2_ERROR_SYNTAX, + ); + } + if (isset($ecode_map[$native_code])) { + if ($native_code == 3701 + && preg_match('/Cannot drop the index/i', $native_msg) + ) { + $error = MDB2_ERROR_NOT_FOUND; + } else { + $error = $ecode_map[$native_code]; + } + } + } + return array($error, $native_code, $native_msg); + } + + // }}} + // {{{ function escapePattern($text) + + /** + * Quotes pattern (% and _) characters in a string) + * + * @param string the input string to quote + * + * @return string quoted string + * + * @access public + */ + function escapePattern($text) + { + $text = str_replace("[", "[ [ ]", $text); + foreach ($this->wildcards as $wildcard) { + $text = str_replace($wildcard, '[' . $wildcard . ']', $text); + } + return $text; + } + + // }}} + // {{{ escape() + + /** + * Quotes a string so it can be safely used in a query. It will quote + * the text so it can safely be used within a query. + * + * @param string $text the input string to quote + * @param bool $escape_wildcards flag + * + * @return string quoted string + * @access public + */ + function escape($text, $escape_wildcards = false) + { + $text = parent::escape($text, $escape_wildcards); + // http://pear.php.net/bugs/bug.php?id=16118 + // http://support.microsoft.com/kb/164291 + return preg_replace("/\\\\(\r\n|\r|\n)/", '\\\\$1', $text); + } + + // }}} + // {{{ beginTransaction() + + /** + * Start a transaction or set a savepoint. + * + * @param string $savepoint name of a savepoint to set + * + * @return mixed MDB2_OK on success, a MDB2 error on failure + * @access public + */ + function beginTransaction($savepoint = null) + { + $this->debug('Starting transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint)); + if (null !== $savepoint) { + if (!$this->in_transaction) { + return $this->raiseError(MDB2_ERROR_INVALID, null, null, + 'savepoint cannot be released when changes are auto committed', __FUNCTION__); + } + $query = 'SAVE TRANSACTION '.$savepoint; + return $this->_doQuery($query, true); + } + if ($this->in_transaction) { + return MDB2_OK; //nothing to do + } + if (!$this->destructor_registered && $this->opened_persistent) { + $this->destructor_registered = true; + register_shutdown_function('MDB2_closeOpenTransactions'); + } + $result =& $this->_doQuery('BEGIN TRANSACTION', true); + if (PEAR::isError($result)) { + return $result; + } + $this->in_transaction = true; + return MDB2_OK; + } + + // }}} + // {{{ commit() + + /** + * Commit the database changes done during a transaction that is in + * progress or release a savepoint. This function may only be called when + * auto-committing is disabled, otherwise it will fail. Therefore, a new + * transaction is implicitly started after committing the pending changes. + * + * @param string $savepoint name of a savepoint to release + * + * @return mixed MDB2_OK on success, a MDB2 error on failure + * @access public + */ + function commit($savepoint = null) + { + $this->debug('Committing transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint)); + if (!$this->in_transaction) { + return $this->raiseError(MDB2_ERROR_INVALID, null, null, + 'commit/release savepoint cannot be done changes are auto committed', __FUNCTION__); + } + if (null !== $savepoint) { + return MDB2_OK; + } + + $result =& $this->_doQuery('COMMIT TRANSACTION', true); + if (PEAR::isError($result)) { + return $result; + } + $this->in_transaction = false; + return MDB2_OK; + } + + // }}} + // {{{ rollback() + + /** + * Cancel any database changes done during a transaction or since a specific + * savepoint that is in progress. This function may only be called when + * auto-committing is disabled, otherwise it will fail. Therefore, a new + * transaction is implicitly started after canceling the pending changes. + * + * @param string $savepoint name of a savepoint to rollback to + * + * @return mixed MDB2_OK on success, a MDB2 error on failure + * @access public + */ + function rollback($savepoint = null) + { + $this->debug('Rolling back transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint)); + if (!$this->in_transaction) { + return $this->raiseError(MDB2_ERROR_INVALID, null, null, + 'rollback cannot be done changes are auto committed', __FUNCTION__); + } + if (null !== $savepoint) { + $query = 'ROLLBACK TRANSACTION '.$savepoint; + return $this->_doQuery($query, true); + } + + $result =& $this->_doQuery('ROLLBACK TRANSACTION', true); + if (PEAR::isError($result)) { + return $result; + } + $this->in_transaction = false; + return MDB2_OK; + } + + // }}} + // {{{ _doConnect() + + /** + * do the grunt work of the connect + * + * @param string $username + * @param string $password + * @param boolean $persistent + * + * @return connection on success or MDB2 Error Object on failure + * @access protected + */ + function _doConnect($username, $password, $persistent = false) + { + if ( !PEAR::loadExtension($this->phptype) + && !PEAR::loadExtension('sybase_ct') + && !PEAR::loadExtension('odbtp') + && !function_exists('mssql_connect') + ) { + return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null, + 'extension '.$this->phptype.' is not compiled into PHP', __FUNCTION__); + } + + $params = array( + $this->dsn['hostspec'] ? $this->dsn['hostspec'] : 'localhost', + $username ? $username : null, + $password ? $password : null, + ); + if ($this->dsn['port']) { + $params[0].= ((substr(PHP_OS, 0, 3) == 'WIN') ? ',' : ':').$this->dsn['port']; + } + if (!$persistent) { + if ($this->_isNewLinkSet()) { + $params[] = true; + } else { + $params[] = false; + } + } + + $connect_function = $persistent ? 'mssql_pconnect' : 'mssql_connect'; + + $connection = @call_user_func_array($connect_function, $params); + if ($connection <= 0) { + return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null, + 'unable to establish a connection', __FUNCTION__, __FUNCTION__); + } + + @mssql_query('SET ANSI_NULL_DFLT_ON ON', $connection); + + /* + if (!empty($this->dsn['charset'])) { + $result = $this->setCharset($this->dsn['charset'], $connection); + if (PEAR::isError($result)) { + return $result; + } + } + */ + + if ((bool)ini_get('mssql.datetimeconvert')) { + // his isn't the most elegant way of doing it but it prevents from + // breaking anything thus preserves BC. Bug #11849 + if (isset($this->options['datetimeconvert']) && (bool)$this->options['datetimeconvert'] !== false) { + @ini_set('mssql.datetimeconvert', '1'); + } else { + @ini_set('mssql.datetimeconvert', '0'); + } + } + + if (empty($this->dsn['disable_iso_date'])) { + @mssql_query('SET DATEFORMAT ymd', $connection); + } + + return $connection; + } + + // }}} + // {{{ connect() + + /** + * Connect to the database + * + * @return true on success, MDB2 Error Object on failure + */ + function connect() + { + if (is_resource($this->connection)) { + //if (count(array_diff($this->connected_dsn, $this->dsn)) == 0 + if (MDB2::areEquals($this->connected_dsn, $this->dsn) + && $this->opened_persistent == $this->options['persistent'] + ) { + return MDB2_OK; + } + $this->disconnect(false); + } + + $connection = $this->_doConnect( + $this->dsn['username'], + $this->dsn['password'], + $this->options['persistent'] + ); + if (PEAR::isError($connection)) { + return $connection; + } + + $this->connection = $connection; + $this->connected_dsn = $this->dsn; + $this->connected_database_name = ''; + $this->opened_persistent = $this->options['persistent']; + $this->dbsyntax = $this->dsn['dbsyntax'] ? $this->dsn['dbsyntax'] : $this->phptype; + + if ($this->database_name) { + if ($this->database_name != $this->connected_database_name) { + if (!@mssql_select_db($this->database_name, $connection)) { + $err = $this->raiseError(null, null, null, + 'Could not select the database: '.$this->database_name, __FUNCTION__); + return $err; + } + $this->connected_database_name = $this->database_name; + } + } + + return MDB2_OK; + } + + // }}} + // {{{ databaseExists() + + /** + * check if given database name is exists? + * + * @param string $name name of the database that should be checked + * + * @return mixed true/false on success, a MDB2 error on failure + * @access public + */ + function databaseExists($name) + { + $connection = $this->_doConnect($this->dsn['username'], + $this->dsn['password'], + $this->options['persistent']); + if (PEAR::isError($connection)) { + return $connection; + } + + $result = @mssql_select_db($name, $connection); + $errorInfo = $this->errorInfo(null, $connection); + @mssql_close($connection); + if (!$result) { + if ($errorInfo[0] != MDB2_ERROR_NOT_FOUND) { + exit; + $result = $this->raiseError($errorInfo[0], null, null, $errorInfo[2], __FUNCTION__); + return $result; + } + $result = false; + } + + return $result; + } + + // }}} + // {{{ disconnect() + + /** + * Log out and disconnect from the database. + * + * @param boolean $force if the disconnect should be forced even if the + * connection is opened persistently + * @return mixed true on success, false if not connected and error + * object on error + * @access public + */ + function disconnect($force = true) + { + if (is_resource($this->connection)) { + if ($this->in_transaction) { + $dsn = $this->dsn; + $database_name = $this->database_name; + $persistent = $this->options['persistent']; + $this->dsn = $this->connected_dsn; + $this->database_name = $this->connected_database_name; + $this->options['persistent'] = $this->opened_persistent; + $this->rollback(); + $this->dsn = $dsn; + $this->database_name = $database_name; + $this->options['persistent'] = $persistent; + } + + if (!$this->opened_persistent || $force) { + $ok = @mssql_close($this->connection); + if (!$ok) { + return $this->raiseError(MDB2_ERROR_DISCONNECT_FAILED, + null, null, null, __FUNCTION__); + } + } + } else { + return false; + } + return parent::disconnect($force); + } + + // }}} + // {{{ standaloneQuery() + + /** + * execute a query as DBA + * + * @param string $query the SQL query + * @param mixed $types array that contains the types of the columns in + * the result set + * @param boolean $is_manip if the query is a manipulation query + * @return mixed MDB2_OK on success, a MDB2 error on failure + * @access public + */ + function &standaloneQuery($query, $types = null, $is_manip = false) + { + $user = $this->options['DBA_username']? $this->options['DBA_username'] : $this->dsn['username']; + $pass = $this->options['DBA_password']? $this->options['DBA_password'] : $this->dsn['password']; + $connection = $this->_doConnect($user, $pass, $this->options['persistent']); + if (PEAR::isError($connection)) { + return $connection; + } + + $offset = $this->offset; + $limit = $this->limit; + $this->offset = $this->limit = 0; + $query = $this->_modifyQuery($query, $is_manip, $limit, $offset); + + $result =& $this->_doQuery($query, $is_manip, $connection, $this->database_name); + if (!PEAR::isError($result)) { + $result = $this->_affectedRows($connection, $result); + } + + @mssql_close($connection); + return $result; + } + + // }}} + // {{{ _doQuery() + + /** + * Execute a query + * @param string $query query + * @param boolean $is_manip if the query is a manipulation query + * @param resource $connection + * @param string $database_name + * @return result or error object + * @access protected + */ + function &_doQuery($query, $is_manip = false, $connection = null, $database_name = null) + { + $this->last_query = $query; + $result = $this->debug($query, 'query', array('is_manip' => $is_manip, 'when' => 'pre')); + if ($result) { + if (PEAR::isError($result)) { + return $result; + } + $query = $result; + } + if ($this->options['disable_query']) { + $result = $is_manip ? 0 : null; + return $result; + } + + if (null === $connection) { + $connection = $this->getConnection(); + if (PEAR::isError($connection)) { + return $connection; + } + } + if (null === $database_name) { + $database_name = $this->database_name; + } + + if ($database_name) { + if ($database_name != $this->connected_database_name) { + if (!@mssql_select_db($database_name, $connection)) { + $err = $this->raiseError(null, null, null, + 'Could not select the database: '.$database_name, __FUNCTION__); + return $err; + } + $this->connected_database_name = $database_name; + } + } + + $result = @mssql_query($query, $connection); + if (!$result) { + $err =& $this->raiseError(null, null, null, + 'Could not execute statement', __FUNCTION__); + return $err; + } + + $this->debug($query, 'query', array('is_manip' => $is_manip, 'when' => 'post', 'result' => $result)); + return $result; + } + + // }}} + // {{{ _affectedRows() + + /** + * Returns the number of rows affected + * + * @param resource $result + * @param resource $connection + * @return mixed MDB2 Error Object or the number of rows affected + * @access private + */ + function _affectedRows($connection, $result = null) + { + if (null === $connection) { + $connection = $this->getConnection(); + if (PEAR::isError($connection)) { + return $connection; + } + } + return @mssql_rows_affected($connection); + } + + // }}} + // {{{ _modifyQuery() + + /** + * Changes a query string for various DBMS specific reasons + * + * @param string $query query to modify + * @param boolean $is_manip if it is a DML query + * @param integer $limit limit the number of rows + * @param integer $offset start reading from given offset + * @return string modified query + * @access protected + */ + function _modifyQuery($query, $is_manip, $limit, $offset) + { + if ($limit > 0) { + $fetch = $offset + $limit; + if (!$is_manip) { + return preg_replace('/^([\s(])*SELECT( DISTINCT)?(?!\s*TOP\s*\()/i', + "\\1SELECT\\2 TOP $fetch", $query); + } + } + return $query; + } + + // }}} + // {{{ getServerVersion() + + /** + * return version information about the server + * + * @param bool $native determines if the raw version string should be returned + * @return mixed array/string with version information or MDB2 error object + * @access public + */ + function getServerVersion($native = false) + { + if ($this->connected_server_info) { + $server_info = $this->connected_server_info; + } else { + $query = 'SELECT @@VERSION'; + $server_info = $this->queryOne($query, 'text'); + if (PEAR::isError($server_info)) { + return $server_info; + } + } + // cache server_info + $this->connected_server_info = $server_info; + if (!$native && !PEAR::isError($server_info)) { + if (preg_match('/(\d+)\.(\d+)\.(\d+)/', $server_info, $tmp)) { + $server_info = array( + 'major' => $tmp[1], + 'minor' => $tmp[2], + 'patch' => $tmp[3], + 'extra' => null, + 'native' => $server_info, + ); + } else { + $server_info = array( + 'major' => null, + 'minor' => null, + 'patch' => null, + 'extra' => null, + 'native' => $server_info, + ); + } + } + return $server_info; + } + + // }}} + // {{{ _checkSequence + + /** + * Checks if there's a sequence that exists. + * + * @param string $seq_name The sequence name to verify. + * @return bool $tableExists The value if the table exists or not + * @access private + */ + function _checkSequence($seq_name) + { + $query = "SELECT * FROM $seq_name"; + $tableExists =& $this->_doQuery($query, true); + if (PEAR::isError($tableExists)) { + if ($tableExists->getCode() == MDB2_ERROR_NOSUCHTABLE) { + return false; + } + //return $tableExists; + return false; + } + return mssql_result($tableExists, 0, 0); + } + + // }}} + // {{{ nextID() + + /** + * Returns the next free id of a sequence + * + * @param string $seq_name name of the sequence + * @param boolean $ondemand when true the sequence is + * automatic created, if it + * not exists + * + * @return mixed MDB2 Error Object or id + * @access public + */ + function nextID($seq_name, $ondemand = true) + { + $sequence_name = $this->quoteIdentifier($this->getSequenceName($seq_name), true); + $seqcol_name = $this->quoteIdentifier($this->options['seqcol_name'], true); + $this->pushErrorHandling(PEAR_ERROR_RETURN); + $this->expectError(MDB2_ERROR_NOSUCHTABLE); + + $seq_val = $this->_checkSequence($sequence_name); + + if ($seq_val) { + $query = "SET IDENTITY_INSERT $sequence_name OFF ". + "INSERT INTO $sequence_name DEFAULT VALUES"; + } else { + $query = "INSERT INTO $sequence_name ($seqcol_name) VALUES (0)"; + } + $result =& $this->_doQuery($query, true); + $this->popExpect(); + $this->popErrorHandling(); + if (PEAR::isError($result)) { + if ($ondemand && !$this->_checkSequence($sequence_name)) { + $this->loadModule('Manager', null, true); + $result = $this->manager->createSequence($seq_name); + if (PEAR::isError($result)) { + return $this->raiseError($result, null, null, + 'on demand sequence '.$seq_name.' could not be created', __FUNCTION__); + } else { + /** + * Little off-by-one problem with the sequence emulation + * here being fixed, that instead of re-calling nextID + * and forcing an increment by one, we simply check if it + * exists, then we get the last inserted id if it does. + * + * In theory, $seq_name should be created otherwise there would + * have been an error thrown somewhere up there.. + * + * @todo confirm + */ + if ($this->_checkSequence($seq_name)) { + return $this->lastInsertID($seq_name); + } + + return $this->nextID($seq_name, false); + } + } + return $result; + } + $value = $this->lastInsertID($sequence_name); + if (is_numeric($value)) { + $query = "DELETE FROM $sequence_name WHERE $seqcol_name < $value"; + $result =& $this->_doQuery($query, true); + if (PEAR::isError($result)) { + $this->warnings[] = 'nextID: could not delete previous sequence table values from '.$seq_name; + } + } + return $value; + } + + // }}} + // {{{ lastInsertID() + + /** + * Returns the autoincrement ID if supported or $id or fetches the current + * ID in a sequence called: $table.(empty($field) ? '' : '_'.$field) + * + * @param string $table name of the table into which a new row was inserted + * @param string $field name of the field into which a new row was inserted + * + * @return mixed MDB2 Error Object or id + * @access public + */ + function lastInsertID($table = null, $field = null) + { + $server_info = $this->getServerVersion(); + if (is_array($server_info) && (null !== $server_info['major']) + && $server_info['major'] >= 8 + ) { + $query = "SELECT IDENT_CURRENT('$table')"; + } else { + $query = "SELECT @@IDENTITY"; + if (null !== $table) { + $query .= ' FROM '.$this->quoteIdentifier($table, true); + } + } + + return $this->queryOne($query, 'integer'); + } + + // }}} +} + +// }}} +// {{{ Class MDB2_Result_mssql + +/** + * MDB2 MSSQL Server result driver + * + * @package MDB2 + * @category Database + * @author Frank M. Kromann <frank@kromann.info> + */ +class MDB2_Result_mssql extends MDB2_Result_Common +{ + // {{{ _skipLimitOffset() + + /** + * Skip the first row of a result set. + * + * @param resource $result + * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure + * @access protected + */ + function _skipLimitOffset() + { + if ($this->limit) { + if ($this->rownum >= $this->limit) { + return false; + } + } + if ($this->offset) { + while ($this->offset_count < $this->offset) { + ++$this->offset_count; + if (!is_array(@mssql_fetch_row($this->result))) { + $this->offset_count = $this->limit; + return false; + } + } + } + return MDB2_OK; + } + + // }}} + // {{{ fetchRow() + + /** + * Fetch a row and insert the data into an existing array. + * + * @param int $fetchmode how the array data should be indexed + * @param int $rownum number of the row where the data can be found + * + * @return int data array on success, a MDB2 error on failure + * @access public + */ + function &fetchRow($fetchmode = MDB2_FETCHMODE_DEFAULT, $rownum = null) + { + if (!$this->_skipLimitOffset()) { + $null = null; + return $null; + } + if (null !== $rownum) { + $seek = $this->seek($rownum); + if (PEAR::isError($seek)) { + return $seek; + } + } + if ($fetchmode == MDB2_FETCHMODE_DEFAULT) { + $fetchmode = $this->db->fetchmode; + } + if ($fetchmode & MDB2_FETCHMODE_ASSOC) { + $row = @mssql_fetch_assoc($this->result); + if (is_array($row) + && $this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE + ) { + $row = array_change_key_case($row, $this->db->options['field_case']); + } + } else { + $row = @mssql_fetch_row($this->result); + } + if (!$row) { + if (false === $this->result) { + $err =& $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, + 'resultset has already been freed', __FUNCTION__); + return $err; + } + $null = null; + return $null; + } + $mode = $this->db->options['portability'] & MDB2_PORTABILITY_EMPTY_TO_NULL; + $rtrim = false; + if ($this->db->options['portability'] & MDB2_PORTABILITY_RTRIM) { + if (empty($this->types)) { + $mode += MDB2_PORTABILITY_RTRIM; + } else { + $rtrim = true; + } + } + if ($mode) { + $this->db->_fixResultArrayValues($row, $mode); + } + if (!empty($this->types)) { + $row = $this->db->datatype->convertResultRow($this->types, $row, $rtrim); + } + if (!empty($this->values)) { + $this->_assignBindColumns($row); + } + if ($fetchmode === MDB2_FETCHMODE_OBJECT) { + $object_class = $this->db->options['fetch_class']; + if ($object_class == 'stdClass') { + $row = (object) $row; + } else { + $rowObj = new $object_class($row); + $row = $rowObj; + } + } + ++$this->rownum; + return $row; + } + + // }}} + // {{{ _getColumnNames() + + /** + * Retrieve the names of columns returned by the DBMS in a query result. + * + * @return mixed Array variable that holds the names of columns as keys + * or an MDB2 error on failure. + * Some DBMS may not return any columns when the result set + * does not contain any rows. + * @access private + */ + function _getColumnNames() + { + $columns = array(); + $numcols = $this->numCols(); + if (PEAR::isError($numcols)) { + return $numcols; + } + for ($column = 0; $column < $numcols; $column++) { + $column_name = @mssql_field_name($this->result, $column); + $columns[$column_name] = $column; + } + if ($this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) { + $columns = array_change_key_case($columns, $this->db->options['field_case']); + } + return $columns; + } + + // }}} + // {{{ numCols() + + /** + * Count the number of columns returned by the DBMS in a query result. + * + * @return mixed integer value with the number of columns, a MDB2 error + * on failure + * @access public + */ + function numCols() + { + $cols = @mssql_num_fields($this->result); + if (null === $cols) { + if (false === $this->result) { + return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, + 'resultset has already been freed', __FUNCTION__); + } + if (null === $this->result) { + return count($this->types); + } + return $this->db->raiseError(null, null, null, + 'Could not get column count', __FUNCTION__); + } + return $cols; + } + + // }}} + // {{{ nextResult() + + /** + * Move the internal result pointer to the next available result + * + * @return true on success, false if there is no more result set or an error object on failure + * @access public + */ + function nextResult() + { + if (false === $this->result) { + return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, + 'resultset has already been freed', __FUNCTION__); + } + if (null === $this->result) { + return false; + } + return @mssql_next_result($this->result); + } + + // }}} + // {{{ free() + + /** + * Free the internal resources associated with $result. + * + * @return boolean true on success, false if $result is invalid + * @access public + */ + function free() + { + if (is_resource($this->result) && $this->db->connection) { + $free = @mssql_free_result($this->result); + if (false === $free) { + return $this->db->raiseError(null, null, null, + 'Could not free result', __FUNCTION__); + } + } + $this->result = false; + return MDB2_OK; + } + + // }}} +} + +// }}} +// {{{ class MDB2_BufferedResult_mssql + +/** + * MDB2 MSSQL Server buffered result driver + * + * @package MDB2 + * @category Database + * @author Frank M. Kromann <frank@kromann.info> + */ +class MDB2_BufferedResult_mssql extends MDB2_Result_mssql +{ + // {{{ seek() + + /** + * Seek to a specific row in a result set + * + * @param int $rownum number of the row where the data can be found + * + * @return mixed MDB2_OK on success, a MDB2 error on failure + * @access public + */ + function seek($rownum = 0) + { + if ($this->rownum != ($rownum - 1) && !@mssql_data_seek($this->result, $rownum)) { + if (false === $this->result) { + return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, + 'resultset has already been freed', __FUNCTION__); + } + if (null === $this->result) { + return MDB2_OK; + } + return $this->db->raiseError(MDB2_ERROR_INVALID, null, null, + 'tried to seek to an invalid row number ('.$rownum.')', __FUNCTION__); + } + $this->rownum = $rownum - 1; + return MDB2_OK; + } + + // }}} + // {{{ valid() + + /** + * Check if the end of the result set has been reached + * + * @return mixed true or false on sucess, a MDB2 error on failure + * @access public + */ + function valid() + { + $numrows = $this->numRows(); + if (PEAR::isError($numrows)) { + return $numrows; + } + return $this->rownum < ($numrows - 1); + } + + // }}} + // {{{ numRows() + + /** + * Returns the number of rows in a result object + * + * @return mixed MDB2 Error Object or the number of rows + * @access public + */ + function numRows() + { + $rows = @mssql_num_rows($this->result); + if (null === $rows) { + if (false === $this->result) { + return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, + 'resultset has already been freed', __FUNCTION__); + } + if (null === $this->result) { + return 0; + } + return $this->db->raiseError(null, null, null, + 'Could not get row count', __FUNCTION__); + } + if ($this->limit) { + $rows -= $this->offset; + if ($rows > $this->limit + 1) { + $rows = $this->limit + 1; + } + if ($rows < 0) { + $rows = 0; + } + } + return $rows; + } +} + +// }}} +// {{{ MDB2_Statement_mssql + +/** + * MDB2 MSSQL Server statement driver + * + * @package MDB2 + * @category Database + * @author Frank M. Kromann <frank@kromann.info> + */ +class MDB2_Statement_mssql extends MDB2_Statement_Common +{ + +} + +// }}} ?>
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