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authoralecpl <alec@alec.pl>2010-01-26 13:45:16 +0000
committeralecpl <alec@alec.pl>2010-01-26 13:45:16 +0000
commit2273d4117fd50ee44dcdaa28fd6444383dc403a0 (patch)
treedc9d429523d816ab8d1d65547f300e4e97fac387 /program/lib/MDB2/Driver/sqlsrv.php
parent8f85e3759c4eb4b61e8aab2dd4071e429deb81a3 (diff)
- Add support for MDB2's 'sqlsrv' driver (#1486395)
Diffstat (limited to 'program/lib/MDB2/Driver/sqlsrv.php')
-rw-r--r--program/lib/MDB2/Driver/sqlsrv.php1165
1 files changed, 1165 insertions, 0 deletions
diff --git a/program/lib/MDB2/Driver/sqlsrv.php b/program/lib/MDB2/Driver/sqlsrv.php
new file mode 100644
index 000000000..c00aaf48f
--- /dev/null
+++ b/program/lib/MDB2/Driver/sqlsrv.php
@@ -0,0 +1,1165 @@
+<?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> |
+// +----------------------------------------------------------------------+
+// {{{ Class MDB2_Driver_sqlsrv
+/**
+ * MDB2 MSSQL Server (native) driver
+ *
+ * @package MDB2
+ * @category Database
+ */
+class MDB2_Driver_sqlsrv extends MDB2_Driver_Common
+{
+ // {{{ properties
+
+ var $string_quoting = array('start' => "'", 'end' => "'", 'escape' => "'", 'escape_pattern' => false);
+
+ var $identifier_quoting = array('start' => '[', 'end' => ']', 'escape' => ']');
+
+ var $connection = null;
+
+ // }}}
+ // {{{ constructor
+
+ /**
+ * Constructor
+ */
+ function __construct()
+ {
+ parent::__construct();
+
+ $this->phptype = 'sqlsrv';
+ $this->dbsyntax = 'sqlsrv';
+
+ $this->supported['sequences'] = 'emulated';
+ $this->supported['indexes'] = true;
+ $this->supported['affected_rows'] = true;
+ $this->supported['summary_functions'] = true;
+ $this->supported['transactions'] = true;
+ $this->supported['order_by_text'] = true;
+ $this->supported['savepoints'] = false;
+ $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['identifier_quoting'] = false;
+ $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 === $connection) {
+ if (!$this->connection) {
+ $this->connect();
+ }
+ $connection = $this->connection;
+ }
+
+ $native_code = null;
+ $native_msg = null;
+ if ($connection) {
+ $retErrors = sqlsrv_errors(SQLSRV_ERR_ALL);
+ if ($retErrors !== null) {
+ foreach ($retErrors as $arrError) {
+ $native_msg .= "SQLState: ".$arrError[ 'SQLSTATE']."\n";
+ $native_msg .= "Error Code: ".$arrError[ 'code']."\n";
+ $native_msg .= "Message: ".$arrError[ 'message']."\n";
+ $native_code = $arrError[ 'code'];
+ }
+ }
+ }
+ 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 $text;
+ }
+
+ // }}}
+ // {{{ beginTransaction()
+
+ /**
+ * Start a transaction or set a savepoint.
+ *
+ * @param string name of a savepoint to set
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ *
+ * @access public
+ */
+ function beginTransaction($savepoint = null)
+ {
+ $this->debug('Starting transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
+ if (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) {
+ $this->destructor_registered = true;
+ register_shutdown_function('MDB2_closeOpenTransactions');
+ }
+ if (PEAR::isError(sqlsrv_begin_transaction($this->connection))) {
+ return MDB2_ERROR;
+ }
+ $this->in_transaction = true;
+ return MDB2_OK;
+ }
+
+ // }}}
+ // {{{ commit()
+
+ /**
+ * Commit the database changes done during a transaction that is in
+ * progress or release a savepoint. This function may only be called when
+ * auto-committing is disabled, otherwise it will fail. Therefore, a new
+ * transaction is implicitly started after committing the pending changes.
+ *
+ * @param string name of a savepoint to release
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ *
+ * @access public
+ */
+ function commit($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 (null !== $savepoint) {
+ return MDB2_OK;
+ }
+
+ if (PEAR::isError(sqlsrv_commit($this->connection))) {
+ return MDB2_ERROR;
+ }
+ $this->in_transaction = false;
+ return MDB2_OK;
+ }
+
+ // }}}
+ // {{{ rollback()
+
+ /**
+ * Cancel any database changes done during a transaction or since a specific
+ * savepoint that is in progress. This function may only be called when
+ * auto-committing is disabled, otherwise it will fail. Therefore, a new
+ * transaction is implicitly started after canceling the pending changes.
+ *
+ * @param string name of a savepoint to rollback to
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ *
+ * @access public
+ */
+ function rollback($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 (null !== $savepoint) {
+ $query = 'ROLLBACK TRANSACTION '.$savepoint;
+ return $this->_doQuery($query, true);
+ }
+
+ if (PEAR::isError(sqlsrv_rollback($this->connection))) {
+ return MDB2_ERROR;
+ }
+ $this->in_transaction = false;
+ return MDB2_OK;
+ }
+
+ // }}}
+ // {{{ _doConnect()
+
+ /**
+ * do the grunt work of the connect
+ *
+ * @return connection on success or MDB2 Error Object on failure
+ * @access protected
+ */
+ function _doConnect($username, $password, $database=null, $persistent = false)
+ {
+ if (!PEAR::loadExtension($this->phptype)) {
+ return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
+ 'extension '.$this->phptype.' is not installed PHP', __FUNCTION__);
+ }
+
+ $host = $this->dsn['hostspec'] ? $this->dsn['hostspec'] : '.\\SQLEXPRESS';
+ $params = array(
+ 'UID' => $username ? $username : null,
+ 'PWD' => $password ? $password : null,
+ );
+ if ($database) {
+ $params['Database'] = $database;
+ }
+
+ if ($this->dsn['port'] && $this->dsn['port'] != 1433) {
+ $host .= ','.$this->dsn['port'];
+ }
+
+ $connection = @sqlsrv_connect($host, $params);
+ if (!$connection) {
+ return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null,
+ 'unable to establish a connection', __FUNCTION__, __FUNCTION__);
+ }
+ if (null !== $database) {
+ $this->connected_database_name = $database;
+ }
+
+ if (!empty($this->dsn['charset'])) {
+ $result = $this->setCharset($this->dsn['charset'], $connection);
+ if (PEAR::isError($result)) {
+ return $result;
+ }
+ }
+
+ if (empty($this->dsn['disable_iso_date'])) {
+ @sqlsrv_query($connection,'SET DATEFORMAT ymd');
+ }
+
+ return $connection;
+ }
+
+ // }}}
+ // {{{ connect()
+
+ /**
+ * Connect to the database
+ *
+ * @return true on success, MDB2 Error Object on failure
+ */
+ function connect()
+ {
+ if (is_resource($this->connection)) {
+ if (MDB2::areEquals($this->connected_dsn, $this->dsn)) {
+ return MDB2_OK;
+ }
+ $this->disconnect(false);
+ }
+
+ $connection = $this->_doConnect(
+ $this->dsn['username'],
+ $this->dsn['password'],
+ $this->database_name,
+ $this->options['persistent']
+ );
+ if (PEAR::isError($connection)) {
+ return $connection;
+ }
+
+ $this->connection = $connection;
+ $this->connected_dsn = $this->dsn;
+ $this->connected_database_name = $this->database_name;
+ $this->opened_persistent = $this->options['persistent'];
+ $this->dbsyntax = $this->dsn['dbsyntax'] ? $this->dsn['dbsyntax'] : $this->phptype;
+
+ return MDB2_OK;
+ }
+
+ // }}}
+ // {{{ databaseExists()
+
+ /**
+ * check if given database name 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'],$this->dsn['password']);
+ if (PEAR::isError($connection)) {
+ return MDB2_ERROR_CONNECT_FAILED;
+ }
+ $result = @sqlsrv_query($connection,'select name from master..sysdatabases where name = \''.strtolower($name).'\'');
+ if (@sqlsrv_fetch($result)) {
+ return true;
+ }
+ return MDB2_ERROR_NOT_FOUND;
+ }
+
+ // }}}
+ // {{{ 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'] = $persistent;
+ }
+
+ @sqlsrv_close($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->database_name, $this->options['persistent']);
+ if (PEAR::isError($connection)) {
+ return $connection;
+ }
+
+ $query = $this->_modifyQuery($query, $is_manip, $this->limit, $this->offset);
+ $this->offset = $this->limit = 0;
+
+ $result =& $this->_doQuery($query, $is_manip, $connection);
+ if (!PEAR::isError($result)) {
+ $result = $this->_affectedRows($connection, $result);
+ }
+
+ @sqlsrv_close($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 && $database_name != $this->connected_database_name) {
+ $connection = $this->_doConnect($this->dsn['username'],$this->dsn['password'],$database_name);
+ if (PEAR::isError($connection)) {
+ $err = $this->raiseError(null, null, null,
+ 'Could not select the database: '.$database_name, __FUNCTION__);
+ return $err;
+ }
+ $this->connected_database_name = $database_name;
+ }
+
+ $query = preg_replace('/DATE_FORMAT\((MIN\()?([\w|.]*)(\))?\\Q, \'%Y-%m-%d\')\E/i','CONVERT(varchar(10),$1$2$3,120)',$query);
+ $query = preg_replace('/DATE_FORMAT\(([\w|.]*)\, \'\%Y\-\%m\-\%d %H\:00\:00\'\)/i','CONVERT(varchar(13),$1,120)+\':00:00\'',$query);
+ $result = @sqlsrv_query($connection,$query);
+ if (!$result) {
+ $err =& $this->raiseError(null, null, null,
+ 'Could not execute statement', __FUNCTION__);
+ return $err;
+ }
+ $this->result = $result;
+ $this->debug($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 === $result) {
+ $result = $this->result;
+ }
+ return sqlsrv_rows_affected($this->result);
+ }
+
+ // }}}
+ // {{{ _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 {
+ $server_info = sqlsrv_server_info($this->connection);
+ }
+ // cache server_info
+ $this->connected_server_info = $server_info;
+ $version = $server_info['SQLServerVersion'];
+ if (!$native) {
+ if (preg_match('/(\d+)\.(\d+)\.(\d+)/', $version, $tmp)) {
+ $version = array(
+ 'major' => $tmp[1],
+ 'minor' => $tmp[2],
+ 'patch' => $tmp[3],
+ 'extra' => null,
+ 'native' => $version,
+ );
+ } else {
+ $version = array(
+ 'major' => null,
+ 'minor' => null,
+ 'patch' => null,
+ 'extra' => null,
+ 'native' => $version,
+ );
+ }
+ }
+ return $version;
+ }
+
+ // }}}
+ // {{{ _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 false;
+ }
+ if (@sqlsrv_fetch($tableExits)) {
+ return true;
+ }
+ return false;
+ }
+
+ // }}}
+ // {{{ 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)
+ {
+ return $this->queryOne("SELECT IDENT_CURRENT('$table')", 'integer');
+ }
+
+ // }}}
+}
+
+// }}}
+// {{{ Class MDB2_Result_mssql
+
+/**
+ * MDB2 MSSQL Server result driver
+ *
+ * @package MDB2
+ * @category Database
+ * @author Frank M. Kromann <frank@kromann.info>
+ */
+class MDB2_Result_sqlsrv extends MDB2_Result_Common
+{
+ // {{{ constructor: function __construct(&$db, &$result, $limit = 0, $offset = 0)
+
+ /**
+ * Constructor
+ */
+ function __construct(&$db, &$result, $limit = 0, $offset = 0)
+{
+ $this->db =& $db;
+ $this->result =& $result;
+ $this->offset = $offset;
+ $this->limit = max(0, $limit - 1);
+ $this->cursor = 0;
+ $this->rows = array();
+ $this->numFields = sqlsrv_num_fields($result);
+ $this->fieldMeta = sqlsrv_field_metadata($result);
+ $this->numRowsAffected = sqlsrv_rows_affected($result);
+ while ($row = sqlsrv_fetch_array($result, SQLSRV_FETCH_ASSOC)) {
+ if ($row !== null) {
+ if ($this->offset && $this->offset_count < $this->offset) {
+ $this->offset_count++;
+ continue;
+ }
+ foreach ($row as $k => $v) {
+ if (is_object($v) && method_exists($v, 'format')) {//DateTime Object
+ $row[$k] = $v->format("Y-m-d H:i:s");
+ }
+ }
+ $this->rows[] = $row;//read results into memory, cursors are not supported
+ }
+ }
+ $this->rowcnt = count($this->rows);
+ }
+
+ // }}}
+ // {{{ _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(@sqlsrv_fetch_array($this->result))) {
+ $this->offset_count = $this->limit;
+ return false;
+ }
+ }
+ }
+ return MDB2_OK;
+ }*/
+
+ // }}}
+ function array_to_obj($array, &$obj) {
+ foreach ($array as $key => $value) {
+ if (is_array($value)) {
+ $obj->$key = new stdClass();
+ array_to_obj($value, $obj->$key);
+ } else {
+ $obj->$key = $value;
+ }
+ }
+ return $obj;
+ }
+ // {{{ 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->result) {
+ return $this->db->raiseError(MDB2_ERROR_INVALID, null, null, 'no valid statement given', __FUNCTION__);
+ }
+ if (($this->limit && $this->rownum >= $this->limit) || ($this->cursor >= $this->rowcnt || $this->rowcnt == 0)) {
+ $null = null;
+ return $null;
+ }
+ if (null !== $rownum) {
+ $seek = $this->seek($rownum);
+ if (PEAR::isError($seek)) {
+ return $seek;
+ }
+ }
+
+ $row = false;
+ $arrNum = array();
+ if ($fetchmode == MDB2_FETCHMODE_ORDERED || $fetchmode == MDB2_FETCHMODE_DEFAULT) {
+ foreach ($this->rows[$this->cursor] as $key=>$value) {
+ $arrNum[] = $value;
+ }
+ }
+ switch($fetchmode) {
+ case MDB2_FETCHMODE_ASSOC:
+ $row = $this->rows[$this->cursor]; break;
+ case MDB2_FETCHMODE_ORDERED:
+ $row = $arrNum; break;
+ case MDB2_FETCHMODE_OBJECT:
+ $row = $this->array_to_obj($this->rows[$this->cursor],$o = new $this->db->options['fetch_class']); break;
+ case MDB2_FETCHMODE_DEFAULT:
+ default:
+ $row = $this->rows[$this->cursor] + $arrNum; break;
+ }
+ $this->cursor++;
+
+ /*
+ if ($fetchmode == MDB2_FETCHMODE_OBJECT) {
+ $row = sqlsrv_fetch_object($this->result,$this->db->options['fetch_class']);
+ } else {
+ switch($fetchmode) {
+ case MDB2_FETCHMODE_ASSOC: $fetchmode = SQLSRV_FETCH_ASSOC; break;
+ case MDB2_FETCHMODE_ORDERED: $fetchmode = SQLSRV_FETCH_NUMERIC; break;
+ case MDB2_FETCHMODE_DEFAULT:
+ default:
+ $fetchmode = SQLSRV_FETCH_BOTH;
+ }
+ $row = sqlsrv_fetch_array($this->result,$fetchmode);
+ }
+ foreach ($row as $key=>$value) {
+ if (is_object($value) && method_exists($value, 'format')) {//is DateTime object
+ $row[$key] = $value->format("Y-m-d H:i:s");
+ }
+ }*/
+
+ /*if ($fetchmode == MDB2_FETCHMODE_DEFAULT) {
+ $fetchmode = $this->db->fetchmode;
+ }*/
+ if ($fetchmode == MDB2_FETCHMODE_ASSOC && is_array($row) && $this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
+ $row = array_change_key_case($row, $this->db->options['field_case']);
+ }
+ if (!$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);
+ }
+ ++$this->rownum;
+ return $row;
+ }
+
+ // }}}
+ // {{{ _getColumnNames()
+
+ /**
+ * Retrieve the names of columns returned by the DBMS in a query result.
+ *
+ * @return mixed Array variable that holds the names of columns as keys
+ * or an MDB2 error on failure.
+ * Some DBMS may not return any columns when the result set
+ * does not contain any rows.
+ * @access private
+ */
+ function _getColumnNames()
+ {
+ if (!$this->result) {
+ return $this->db->raiseError(MDB2_ERROR_INVALID, null, null, 'no valid statement given', __FUNCTION__);
+ }
+ $columns = array();
+ foreach ($this->fieldMeta as $col) {
+ $columns[$col['Name']] = $col['Type'];
+ }
+ if ($this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
+ $columns = array_change_key_case($columns, $this->db->options['field_case']);
+ }
+ return $columns;
+ }
+
+ // }}}
+ // {{{ numCols()
+
+ /**
+ * Count the number of columns returned by the DBMS in a query result.
+ *
+ * @return mixed integer value with the number of columns, a MDB2 error
+ * on failure
+ * @access public
+ */
+ function numCols()
+ {
+ if (!$this->result) {
+ return $this->db->raiseError(MDB2_ERROR_INVALID, null, null, 'no valid statement given', __FUNCTION__);
+ }
+ $cols = $this->numFields;
+ if (!$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;
+ }
+ $ret = sqlsrv_next_result($this->result);
+ if ($ret) {
+ $this->cursor = 0;
+ $this->rows = array();
+ $this->numFields = sqlsrv_num_fields($this->result);
+ $this->fieldMeta = sqlsrv_field_metadata($this->result);
+ $this->numRowsAffected = sqlsrv_rows_affected($this->result);
+ while ($row = sqlsrv_fetch_array($this->result, SQLSRV_FETCH_ASSOC)) {
+ if ($row !== null) {
+ if ($this->offset && $this->offset_count < $this->offset) {
+ $this->offset_count++;
+ continue;
+ }
+ foreach ($row as $k => $v) {
+ if (is_object($v) && method_exists($v, 'format')) {//DateTime Object
+ //$v->setTimezone(new DateTimeZone('GMT'));//TS_ISO_8601 with a trailing 'Z' is GMT
+ $row[$k] = $v->format("Y-m-d H:i:s");
+ }
+ }
+ $this->rows[] = $row;//read results into memory, cursors are not supported
+ }
+ }
+ $this->rowcnt = count($this->rows);
+ }
+ return $ret;
+ }
+
+ // }}}
+ // {{{ 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) && $this->db->connection) {
+ if (!@sqlsrv_free_stmt($this->result)) {
+ return $this->db->raiseError(null, null, null,
+ 'Could not free result', __FUNCTION__);
+ }
+ }
+ $this->result = false;
+ return MDB2_OK;
+ }
+
+ // }}}
+ // {{{ function rowCount()
+ /**
+ * Returns the actual row number that was last fetched (count from 0)
+ * @return int
+ *
+ * @access public
+ */
+ function rowCount()
+ {
+ return $this->cursor;
+}
+
+// }}}
+ // {{{ function numRows()
+
+/**
+ * Returns the number of rows in a result object
+ *
+ * @return mixed MDB2 Error Object or the number of rows
+ *
+ * @access public
+ */
+ function numRows()
+{
+ return $this->rowcnt;
+ }
+
+ // }}}
+ // {{{ function seek($rownum = 0)
+
+ /**
+ * Seek to a specific row in a result set
+ *
+ * @param int 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)
+ {
+ $this->cursor = min($rownum, $this->rowcnt);
+ 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_sqlsrv extends MDB2_Result_sqlsrv
+{
+ // {{{ 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);
+ }
+
+ // }}}
+
+}
+
+// }}}
+// {{{ MDB2_Statement_mssql
+
+/**
+ * MDB2 MSSQL Server statement driver
+ *
+ * @package MDB2
+ * @category Database
+ * @author Frank M. Kromann <frank@kromann.info>
+ */
+class MDB2_Statement_sqlsrv extends MDB2_Statement_Common
+{
+
+}
+
+// }}}
+
+?> \ No newline at end of file
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 23:16:47 +0000