/common/libraries/plugin/pear/MDB2/Driver/oci8.php
PHP | 1635 lines | 1179 code | 93 blank | 363 comment | 239 complexity | e84ed14c6eecbebef99b87906b36028e MD5 | raw file
Possible License(s): GPL-2.0, BSD-3-Clause, LGPL-2.1, LGPL-3.0, GPL-3.0, MIT
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- <?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 |
- // | 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: Lukas Smith <smith@pooteeweet.org> |
- // +----------------------------------------------------------------------+
-
- // $Id: oci8.php 137 2009-11-09 13:24:37Z vanpouckesven $
-
- /**
- * MDB2 OCI8 driver
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
- class MDB2_Driver_oci8 extends MDB2_Driver_Common
- {
- // {{{ properties
- var $string_quoting = array('start' => "'", 'end' => "'", 'escape' => "'", 'escape_pattern' => '@');
-
- var $identifier_quoting = array('start' => '"', 'end' => '"', 'escape' => '"');
-
- var $uncommitedqueries = 0;
- // }}}
- // {{{ constructor
-
- /**
- * Constructor
- */
- function __construct()
- {
- parent :: __construct();
-
- $this->phptype = 'oci8';
- $this->dbsyntax = 'oci8';
-
- $this->supported['sequences'] = true;
- $this->supported['indexes'] = true;
- $this->supported['summary_functions'] = true;
- $this->supported['order_by_text'] = true;
- $this->supported['current_id'] = true;
- $this->supported['affected_rows'] = true;
- $this->supported['transactions'] = true;
- $this->supported['savepoints'] = true;
- $this->supported['limit_queries'] = true;
- $this->supported['LOBs'] = true;
- $this->supported['replace'] = 'emulated';
- $this->supported['sub_selects'] = true;
- $this->supported['triggers'] = true;
- $this->supported['auto_increment'] = false; // implementation is broken
- $this->supported['primary_key'] = true;
- $this->supported['result_introspection'] = true;
- $this->supported['prepared_statements'] = true;
- $this->supported['identifier_quoting'] = true;
- $this->supported['pattern_escaping'] = true;
- $this->supported['new_link'] = true;
-
- $this->options['DBA_username'] = false;
- $this->options['DBA_password'] = false;
- $this->options['database_name_prefix'] = false;
- $this->options['emulate_database'] = true;
- $this->options['default_tablespace'] = false;
- $this->options['default_text_field_length'] = 2000;
- $this->options['lob_allow_url_include'] = false;
- $this->options['result_prefetching'] = false;
- $this->options['max_identifiers_length'] = 30;
- }
-
- // }}}
- // {{{ errorInfo()
-
- /**
- * This method is used to collect information about an error
- *
- * @param integer $error
- * @return array
- * @access public
- */
- function errorInfo($error = null)
- {
- if (is_resource($error)) {
- $error_data = @OCIError($error);
- $error = null;
- } elseif ($this->connection) {
- $error_data = @OCIError($this->connection);
- } else {
- $error_data = @OCIError();
- }
- $native_code = $error_data['code'];
- $native_msg = $error_data['message'];
- if (is_null($error)) {
- static $ecode_map;
- if (empty($ecode_map)) {
- $ecode_map = array(
- 1 => MDB2_ERROR_CONSTRAINT,
- 900 => MDB2_ERROR_SYNTAX,
- 904 => MDB2_ERROR_NOSUCHFIELD,
- 911 => MDB2_ERROR_SYNTAX, //invalid character
- 913 => MDB2_ERROR_VALUE_COUNT_ON_ROW,
- 921 => MDB2_ERROR_SYNTAX,
- 923 => MDB2_ERROR_SYNTAX,
- 942 => MDB2_ERROR_NOSUCHTABLE,
- 955 => MDB2_ERROR_ALREADY_EXISTS,
- 1400 => MDB2_ERROR_CONSTRAINT_NOT_NULL,
- 1401 => MDB2_ERROR_INVALID,
- 1407 => MDB2_ERROR_CONSTRAINT_NOT_NULL,
- 1418 => MDB2_ERROR_NOT_FOUND,
- 1435 => MDB2_ERROR_NOT_FOUND,
- 1476 => MDB2_ERROR_DIVZERO,
- 1722 => MDB2_ERROR_INVALID_NUMBER,
- 2289 => MDB2_ERROR_NOSUCHTABLE,
- 2291 => MDB2_ERROR_CONSTRAINT,
- 2292 => MDB2_ERROR_CONSTRAINT,
- 2449 => MDB2_ERROR_CONSTRAINT,
- 24344 => MDB2_ERROR_SYNTAX, //success with compilation error
- );
- }
- if (isset($ecode_map[$native_code])) {
- $error = $ecode_map[$native_code];
- }
- }
- return array($error, $native_code, $native_msg);
- }
-
- // }}}
- // {{{ beginTransaction()
-
- /**
- * Start a transaction or set a savepoint.
- *
- * @param string name of a savepoint to set
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- */
- function beginTransaction($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__);
- }
- $query = 'SAVEPOINT '.$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');
- }
- $this->in_transaction = true;
- ++$this->uncommitedqueries;
- 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;
- }
-
- if ($this->uncommitedqueries) {
- $connection = $this->getConnection();
- if (PEAR::isError($connection)) {
- return $connection;
- }
- if (!@OCICommit($connection)) {
- return $this->raiseError(null, null, null,
- 'Unable to commit transaction', __FUNCTION__);
- }
- $this->uncommitedqueries = 0;
- }
- $this->in_transaction = false;
- return MDB2_OK;
- }
-
- // }}}
- // {{{ rollback()
-
- /**
- * Cancel any database changes done during a transaction or since a specific
- * savepoint that is in progress. This function may only be called when
- * auto-committing is disabled, otherwise it will fail. Therefore, a new
- * transaction is implicitly started after canceling the pending changes.
- *
- * @param string name of a savepoint to rollback to
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- */
- function rollback($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)) {
- $query = 'ROLLBACK TO SAVEPOINT '.$savepoint;
- return $this->_doQuery($query, true);
- }
-
- if ($this->uncommitedqueries) {
- $connection = $this->getConnection();
- if (PEAR::isError($connection)) {
- return $connection;
- }
- if (!@OCIRollback($connection)) {
- return $this->raiseError(null, null, null,
- 'Unable to rollback transaction', __FUNCTION__);
- }
- $this->uncommitedqueries = 0;
- }
- $this->in_transaction = false;
- return MDB2_OK;
- }
-
- // }}}
- // {{{ function setTransactionIsolation()
-
- /**
- * Set the transacton isolation level.
- *
- * @param string standard isolation level
- * READ UNCOMMITTED (allows dirty reads)
- * READ COMMITTED (prevents dirty reads)
- * REPEATABLE READ (prevents nonrepeatable reads)
- * SERIALIZABLE (prevents phantom reads)
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- * @since 2.1.1
- */
- function setTransactionIsolation($isolation)
- {
- $this->debug('Setting transaction isolation level', __FUNCTION__, array('is_manip' => true));
- switch ($isolation) {
- case 'READ UNCOMMITTED':
- $isolation = 'READ COMMITTED';
- case 'READ COMMITTED':
- case 'REPEATABLE READ':
- $isolation = 'SERIALIZABLE';
- case 'SERIALIZABLE':
- break;
- default:
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'isolation level is not supported: '.$isolation, __FUNCTION__);
- }
-
- $query = "ALTER SESSION ISOLATION LEVEL $isolation";
- return $this->_doQuery($query, true);
- }
-
- // }}}
- // {{{ _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)) {
- return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
- 'extension '.$this->phptype.' is not compiled into PHP', __FUNCTION__);
- }
-
- $sid = '';
-
- if (!empty($this->dsn['service']) && $this->dsn['hostspec']) {
- //oci8://username:password@foo.example.com[:port]/?service=service
- // service name is given, it is assumed that hostspec is really a
- // hostname, we try to construct an oracle connection string from this
- $port = $this->dsn['port'] ? $this->dsn['port'] : 1521;
- $sid = sprintf("(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)
- (HOST=%s) (PORT=%s)))
- (CONNECT_DATA=(SERVICE_NAME=%s)))",
- $this->dsn['hostspec'],
- $port,
- $this->dsn['service']
- );
- } elseif ($this->dsn['hostspec']) {
- // we are given something like 'oci8://username:password@foo/'
- // we have hostspec but not a service name, now we assume that
- // hostspec is a tnsname defined in tnsnames.ora
- $sid = $this->dsn['hostspec'];
- if (isset($this->dsn['port']) && $this->dsn['port']) {
- $sid = $sid.':'.$this->dsn['port'];
- }
- } else {
- // oci://username:password@
- // if everything fails, we have to rely on environment variables
- // not before a check to 'emulate_database'
- if (!$this->options['emulate_database'] && $this->database_name) {
- $sid = $this->database_name;
- } elseif (getenv('ORACLE_SID')) {
- $sid = getenv('ORACLE_SID');
- } elseif ($sid = getenv('TWO_TASK')) {
- $sid = getenv('TWO_TASK');
- } else {
- return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
- 'not a valid connection string or environment variable [ORACLE_SID|TWO_TASK] not set',
- __FUNCTION__);
- }
- }
-
- if (function_exists('oci_connect')) {
- if ($this->_isNewLinkSet()) {
- $connect_function = 'oci_new_connect';
- } else {
- $connect_function = $persistent ? 'oci_pconnect' : 'oci_connect';
- }
-
- $charset = empty($this->dsn['charset']) ? null : $this->dsn['charset'];
- $session_mode = empty($this->dsn['session_mode']) ? null : $this->dsn['session_mode'];
- $connection = @$connect_function($username, $password, $sid, $charset, $session_mode);
- $error = @OCIError();
- if (isset($error['code']) && $error['code'] == 12541) {
- // Couldn't find TNS listener. Try direct connection.
- $connection = @$connect_function($username, $password, null, $charset);
- }
- } else {
- $connect_function = $persistent ? 'OCIPLogon' : 'OCILogon';
- $connection = @$connect_function($username, $password, $sid);
-
- if (!empty($this->dsn['charset'])) {
- $result = $this->setCharset($this->dsn['charset'], $connection);
- if (PEAR::isError($result)) {
- return $result;
- }
- }
- }
-
- if (!$connection) {
- return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null,
- 'unable to establish a connection', __FUNCTION__);
- }
-
- if (empty($this->dsn['disable_iso_date'])) {
- $query = "ALTER SESSION SET NLS_DATE_FORMAT='YYYY-MM-DD HH24:MI:SS'";
- $err =& $this->_doQuery($query, true, $connection);
- if (PEAR::isError($err)) {
- $this->disconnect(false);
- return $err;
- }
- }
-
- $query = "ALTER SESSION SET NLS_NUMERIC_CHARACTERS='. '";
- $err =& $this->_doQuery($query, true, $connection);
- if (PEAR::isError($err)) {
- $this->disconnect(false);
- return $err;
- }
-
- return $connection;
- }
-
- // }}}
- // {{{ connect()
-
- /**
- * Connect to the database
- *
- * @return MDB2_OK on success, MDB2 Error Object on failure
- * @access public
- */
- function connect()
- {
- if (is_resource($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;
- }
- $this->disconnect(false);
- }
-
- if ($this->database_name && $this->options['emulate_database']) {
- $this->dsn['username'] = $this->options['database_name_prefix'].$this->database_name;
- }
-
- $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) {
- $query = 'ALTER SESSION SET CURRENT_SCHEMA = "' .strtoupper($this->database_name) .'"';
- $result =& $this->_doQuery($query);
- if (PEAR::isError($result)) {
- $err = $this->raiseError($result, null, null,
- 'Could not select the database: '.$this->database_name, __FUNCTION__);
- return $err;
- }
- $this->connected_database_name = $this->database_name;
- }
- }
-
- $this->as_keyword = ' ';
- $server_info = $this->getServerVersion();
- if (is_array($server_info)) {
- if ($server_info['major'] >= '10') {
- $this->as_keyword = ' AS ';
- }
- }
- 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;
- }
-
- $query = 'ALTER SESSION SET CURRENT_SCHEMA = "' .strtoupper($name) .'"';
- $result =& $this->_doQuery($query, true, $connection, false);
- if (PEAR::isError($result)) {
- if (!MDB2::isError($result, MDB2_ERROR_NOT_FOUND)) {
- return $result;
- }
- return false;
- }
- return true;
- }
-
- // }}}
- // {{{ 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 = false;
- if (function_exists('oci_close')) {
- $ok = @oci_close($this->connection);
- } else {
- $ok = @OCILogOff($this->connection);
- }
- if (!$ok) {
- return $this->raiseError(MDB2_ERROR_DISCONNECT_FAILED,
- null, null, null, __FUNCTION__);
- }
- }
- $this->uncommitedqueries = 0;
- } else {
- return false;
- }
- return parent::disconnect($force);
- }
-
- // }}}
- // {{{ standaloneQuery()
-
- /**
- * execute a query as DBA
- *
- * @param string $query the SQL query
- * @param mixed $types array containing 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, $connection, false);
- if (!PEAR::isError($result)) {
- if ($is_manip) {
- $result = $this->_affectedRows($connection, $result);
- } else {
- $result =& $this->_wrapResult($result, $types, true, false, $limit, $offset);
- }
- }
-
- @OCILogOff($connection);
- return $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 (preg_match('/^\s*SELECT/i', $query)) {
- if (!preg_match('/\sFROM\s/i', $query)) {
- $query.= " FROM dual";
- }
- if ($limit > 0) {
- // taken from http://svn.ez.no/svn/ezcomponents/packages/Database
- $max = $offset + $limit;
- if ($offset > 0) {
- $min = $offset + 1;
- $query = "SELECT * FROM (SELECT a.*, ROWNUM mdb2rn FROM ($query) a WHERE ROWNUM <= $max) WHERE mdb2rn >= $min";
- } else {
- $query = "SELECT a.* FROM ($query) a WHERE ROWNUM <= $max";
- }
- }
- }
- return $query;
- }
-
- // }}}
- // {{{ _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->getOption('disable_query')) {
- if ($is_manip) {
- return 0;
- }
- return null;
- }
-
- if (is_null($connection)) {
- $connection = $this->getConnection();
- if (PEAR::isError($connection)) {
- return $connection;
- }
- }
-
- $query = str_replace("\r\n", "\n", $query); //for fixing end-of-line character in the PL/SQL in windows
- $result = @OCIParse($connection, $query);
- if (!$result) {
- $err = $this->raiseError(null, null, null,
- 'Could not create statement', __FUNCTION__);
- return $err;
- }
-
- $mode = $this->in_transaction ? OCI_DEFAULT : OCI_COMMIT_ON_SUCCESS;
- if (!@OCIExecute($result, $mode)) {
- $err =& $this->raiseError($result, null, null,
- 'Could not execute statement', __FUNCTION__);
- return $err;
- }
-
- if (is_numeric($this->options['result_prefetching'])) {
- @ocisetprefetch($result, $this->options['result_prefetching']);
- }
-
- $this->debug($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 $connection;
- }
- }
- return @OCIRowCount($result);
- }
-
- // }}}
- // {{{ 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)
- {
- $connection = $this->getConnection();
- if (PEAR::isError($connection)) {
- return $connection;
- }
- if ($this->connected_server_info) {
- $server_info = $this->connected_server_info;
- } else {
- $server_info = @ociserverversion($connection);
- }
- if (!$server_info) {
- return $this->raiseError(null, null, null,
- 'Could not get server information', __FUNCTION__);
- }
- // cache server_info
- $this->connected_server_info = $server_info;
- if (!$native) {
- if (!preg_match('/ (\d+)\.(\d+)\.(\d+)\.([\d\.]+) /', $server_info, $tmp)) {
- return $this->raiseError(MDB2_ERROR_INVALID, null, null,
- 'Could not parse version information:'.$server_info, __FUNCTION__);
- }
- $server_info = array(
- 'major' => $tmp[1],
- 'minor' => $tmp[2],
- 'patch' => $tmp[3],
- 'extra' => $tmp[4],
- 'native' => $server_info,
- );
- }
- return $server_info;
- }
-
- // }}}
- // {{{ prepare()
-
- /**
- * Prepares a query for multiple execution with execute().
- * With some database backends, this is emulated.
- * prepare() requires a generic query as string like
- * 'INSERT INTO numbers VALUES(?,?)' or
- * 'INSERT INTO numbers VALUES(:foo,:bar)'.
- * The ? and :name and are placeholders which can be set using
- * bindParam() and the query can be sent off using the execute() method.
- * The allowed format for :name can be set with the 'bindname_format' option.
- *
- * @param string $query the query to prepare
- * @param mixed $types array that contains the types of the placeholders
- * @param mixed $result_types array that contains the types of the columns in
- * the result set or MDB2_PREPARE_RESULT, if set to
- * MDB2_PREPARE_MANIP the query is handled as a manipulation query
- * @param mixed $lobs key (field) value (parameter) pair for all lob placeholders
- * @return mixed resource handle for the prepared query on success, a MDB2
- * error on failure
- * @access public
- * @see bindParam, execute
- */
- function &prepare($query, $types = null, $result_types = null, $lobs = array())
- {
- if ($this->options['emulate_prepared']) {
- $obj =& parent::prepare($query, $types, $result_types, $lobs);
- return $obj;
- }
- $is_manip = ($result_types === MDB2_PREPARE_MANIP);
- $offset = $this->offset;
- $limit = $this->limit;
- $this->offset = $this->limit = 0;
- $result = $this->debug($query, __FUNCTION__, array('is_manip' => $is_manip, 'when' => 'pre'));
- if ($result) {
- if (PEAR::isError($result)) {
- return $result;
- }
- $query = $result;
- }
- $query = $this->_modifyQuery($query, $is_manip, $limit, $offset);
- $placeholder_type_guess = $placeholder_type = null;
- $question = '?';
- $colon = ':';
- $positions = array();
- $position = 0;
- $parameter = -1;
- while ($position < strlen($query)) {
- $q_position = strpos($query, $question, $position);
- $c_position = strpos($query, $colon, $position);
- if ($q_position && $c_position) {
- $p_position = min($q_position, $c_position);
- } elseif ($q_position) {
- $p_position = $q_position;
- } elseif ($c_position) {
- $p_position = $c_position;
- } else {
- break;
- }
- if (is_null($placeholder_type)) {
- $placeholder_type_guess = $query[$p_position];
- }
-
- $new_pos = $this->_skipDelimitedStrings($query, $position, $p_position);
- if (PEAR::isError($new_pos)) {
- return $new_pos;
- }
- if ($new_pos != $position) {
- $position = $new_pos;
- continue; //evaluate again starting from the new position
- }
-
- if ($query[$position] == $placeholder_type_guess) {
- if (is_null($placeholder_type)) {
- $placeholder_type = $query[$p_position];
- $question = $colon = $placeholder_type;
- if (!empty($types) && is_array($types)) {
- if ($placeholder_type == ':') {
- if (is_int(key($types))) {
- $types_tmp = $types;
- $types = array();
- $count = -1;
- }
- } else {
- $types = array_values($types);
- }
- }
- }
- if ($placeholder_type == ':') {
- $regexp = '/^.{'.($position+1).'}('.$this->options['bindname_format'].').*$/s';
- $parameter = preg_replace($regexp, '\\1', $query);
- if ($parameter === '') {
- $err =& $this->raiseError(MDB2_ERROR_SYNTAX, null, null,
- 'named parameter name must match "bindname_format" option', __FUNCTION__);
- return $err;
- }
- // use parameter name in type array
- if (isset($count) && isset($types_tmp[++$count])) {
- $types[$parameter] = $types_tmp[$count];
- }
- $length = strlen($parameter) + 1;
- } else {
- ++$parameter;
- //$length = strlen($parameter);
- $length = 1; // strlen('?')
- }
- if (!in_array($parameter, $positions)) {
- $positions[] = $parameter;
- }
- if (isset($types[$parameter])
- && ($types[$parameter] == 'clob' || $types[$parameter] == 'blob')
- ) {
- if (!isset($lobs[$parameter])) {
- $lobs[$parameter] = $parameter;
- }
- $value = $this->quote(true, $types[$parameter]);
- if (PEAR::isError($value)) {
- return $value;
- }
- $query = substr_replace($query, $value, $p_position, $length);
- $position = $p_position + strlen($value) - 1;
- } elseif ($placeholder_type == '?') {
- $query = substr_replace($query, ':'.$parameter, $p_position, 1);
- $position = $p_position + $length;
- } else {
- $position = $p_position + 1;
- }
- } else {
- $position = $p_position;
- }
- }
- if (is_array($lobs)) {
- $columns = $variables = '';
- foreach ($lobs as $parameter => $field) {
- $columns.= ($columns ? ', ' : ' RETURNING ').$field;
- $variables.= ($variables ? ', ' : ' INTO ').':'.$parameter;
- }
- $query.= $columns.$variables;
- }
- $connection = $this->getConnection();
- if (PEAR::isError($connection)) {
- return $connection;
- }
- $statement = @OCIParse($connection, $query);
- if (!$statement) {
- $err =& $this->raiseError(null, null, null,
- 'Could not create statement', __FUNCTION__);
- return $err;
- }
-
- $class_name = 'MDB2_Statement_'.$this->phptype;
- $obj = new $class_name($this, $statement, $positions, $query, $types, $result_types, $is_manip, $limit, $offset);
- $this->debug($query, __FUNCTION__, array('is_manip' => $is_manip, 'when' => 'post', 'result' => $obj));
- return $obj;
- }
-
- // }}}
- // {{{ 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);
- $query = "SELECT $sequence_name.nextval FROM DUAL";
- $this->pushErrorHandling(PEAR_ERROR_RETURN);
- $this->expectError(MDB2_ERROR_NOSUCHTABLE);
- $result = $this->queryOne($query, 'integer');
- $this->popExpect();
- $this->popErrorHandling();
- if (PEAR::isError($result)) {
- if ($ondemand && $result->getCode() == MDB2_ERROR_NOSUCHTABLE) {
- $this->loadModule('Manager', null, true);
- $result = $this->manager->createSequence($seq_name);
- if (PEAR::isError($result)) {
- return $result;
- }
- return $this->nextId($seq_name, false);
- }
- }
- return $result;
- }
-
- // }}}
- // {{{ 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)
- {
- $seq = $table.(empty($field) ? '' : '_'.$field);
- $sequence_name = $this->quoteIdentifier($this->getSequenceName($seq), true);
- return $this->queryOne("SELECT $sequence_name.currval", 'integer');
- }
-
- // }}}
- // {{{ currId()
-
- /**
- * Returns the current id of a sequence
- *
- * @param string $seq_name name of the sequence
- * @return mixed MDB2_Error or id
- * @access public
- */
- function currId($seq_name)
- {
- $sequence_name = $this->getSequenceName($seq_name);
- $query = 'SELECT (last_number-1) FROM all_sequences';
- $query.= ' WHERE sequence_name='.$this->quote($sequence_name, 'text');
- $query.= ' OR sequence_name='.$this->quote(strtoupper($sequence_name), 'text');
- return $this->queryOne($query, 'integer');
- }
- }
-
- /**
- * MDB2 OCI8 result driver
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
- class MDB2_Result_oci8 extends MDB2_Result_Common
- {
- // }}}
- // {{{ 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, $rownum = null)
- {
- if (!is_null($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) {
- @OCIFetchInto($this->result, $row, OCI_ASSOC+OCI_RETURN_NULLS);
- if (is_array($row)
- && $this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE
- ) {
- $row = array_change_key_case($row, $this->db->options['field_case']);
- }
- } else {
- @OCIFetchInto($this->result, $row, OCI_RETURN_NULLS);
- }
- if (!$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 $null;
- }
- // remove additional column at the end
- if ($this->offset > 0) {
- array_pop($row);
- }
- $mode = 0;
- $rtrim = false;
- if ($this->db->options['portability'] & MDB2_PORTABILITY_RTRIM) {
- if (empty($this->types)) {
- $mode += MDB2_PORTABILITY_RTRIM;
- } else {
- $rtrim = true;
- }
- }
- if ($mode) {
- $this->db->_fixResultArrayValues($row, $mode);
- }
- if (!($fetchmode & MDB2_FETCHMODE_ASSOC) && !empty($this->types)) {
- $row = $this->db->datatype->convertResultRow($this->types, $row, $rtrim);
- } elseif (($fetchmode & MDB2_FETCHMODE_ASSOC) && !empty($this->types_assoc)) {
- $row = $this->db->datatype->convertResultRow($this->types_assoc, $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++) {
- $column_name = @OCIColumnName($this->result, $column + 1);
- $columns[$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()
- {
- $cols = @OCINumCols($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 $this->db->raiseError(null, null, null,
- 'Could not get column count', __FUNCTION__);
- }
- if ($this->offset > 0) {
- --$cols;
- }
- return $cols;
- }
-
- // }}}
- // {{{ 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) {
- $free = @OCIFreeCursor($this->result);
- if ($free === false) {
- return $this->db->raiseError(null, null, null,
- 'Could not free result', __FUNCTION__);
- }
- }
- $this->result = false;
- return MDB2_OK;
-
- }
- }
-
- /**
- * MDB2 OCI8 buffered result driver
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
- class MDB2_BufferedResult_oci8 extends MDB2_Result_oci8
- {
- var $buffer;
- var $buffer_rownum = - 1;
-
- // {{{ _fillBuffer()
-
- /**
- * Fill the row buffer
- *
- * @param int $rownum row number upto which the buffer should be filled
- if the row number is null all rows are ready into the buffer
- * @return boolean true on success, false on failure
- * @access protected
- */
- function _fillBuffer($rownum = null)
- {
- if (isset($this->buffer) && is_array($this->buffer)) {
- if (is_null($rownum)) {
- if (!end($this->buffer)) {
- return false;
- }
- } elseif (isset($this->buffer[$rownum])) {
- return (bool)$this->buffer[$rownum];
- }
- }
-
- $row = true;
- while ((is_null($rownum) || $this->buffer_rownum < $rownum)
- && ($row = @OCIFetchInto($this->result, $buffer, OCI_RETURN_NULLS))
- ) {
- ++$this->buffer_rownum;
- // remove additional column at the end
- if ($this->offset > 0) {
- array_pop($buffer);
- }
- if (empty($this->types)) {
- foreach (array_keys($buffer) as $key) {
- if (is_a($buffer[$key], 'oci-lob')) {
- $buffer[$key] = $buffer[$key]->load();
- }
- }
- }
- $this->buffer[$this->buffer_rownum] = $buffer;
- }
-
- if (!$row) {
- ++$this->buffer_rownum;
- $this->buffer[$this->buffer_rownum] = false;
- return false;
- }
- return true;
- }
-
- // }}}
- // {{{ 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 === false) {
- $err =& $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
- 'resultset has already been freed', __FUNCTION__);
- return $err;
- } elseif (is_null($this->result)) {
- return null;
- }
- if (!is_null($rownum)) {
- $seek = $this->seek($rownum);
- if (PEAR::isError($seek)) {
- return $seek;
- }
- }
- $target_rownum = $this->rownum + 1;
- if ($fetchmode == MDB2_FETCHMODE_DEFAULT) {
- $fetchmode = $this->db->fetchmode;
- }
- if (!$this->_fillBuffer($target_rownum)) {
- $null = null;
- return $null;
- }
- $row = $this->buffer[$target_rownum];
- if ($fetchmode & MDB2_FETCHMODE_ASSOC) {
- $column_names = $this->getColumnNames();
- foreach ($column_names as $name => $i) {
- $column_names[$name] = $row[$i];
- }
- $row = $column_names;
- }
- $mode = 0;
- $rtrim = false;
- if ($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;
- }
-
- // }}}
- // {{{ 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->result === false) {
- return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
- 'resultset has already been freed', __FUNCTION__);
- }
- $this->rownum = $rownum - 1;
- return MDB2_OK;
- }
-
- // }}}
- // {{{ valid()
-
- /**
- * Check if theā¦
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