1668 lines
62 KiB
PHP
1668 lines
62 KiB
PHP
<?php
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// vim: set et ts=4 sw=4 fdm=marker:
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// +----------------------------------------------------------------------+
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// | PHP versions 4 and 5 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1998-2008 Manuel Lemos, Tomas V.V.Cox, |
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// | Stig. S. Bakken, Lukas Smith |
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// | All rights reserved. |
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// +----------------------------------------------------------------------+
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// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB |
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// | API as well as database abstraction for PHP applications. |
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// | This LICENSE is in the BSD license style. |
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// | |
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// | Redistribution and use in source and binary forms, with or without |
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// | modification, are permitted provided that the following conditions |
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// | are met: |
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// | |
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// | Redistributions of source code must retain the above copyright |
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// | notice, this list of conditions and the following disclaimer. |
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// | |
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// | Redistributions in binary form must reproduce the above copyright |
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// | notice, this list of conditions and the following disclaimer in the |
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// | documentation and/or other materials provided with the distribution. |
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// | |
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// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
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// | Lukas Smith nor the names of his contributors may be used to endorse |
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// | or promote products derived from this software without specific prior|
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// | written permission. |
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// | |
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// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
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// | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
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// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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// | POSSIBILITY OF SUCH DAMAGE. |
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// +----------------------------------------------------------------------+
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// | Author: Lukas Smith <smith@pooteeweet.org> |
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// +----------------------------------------------------------------------+
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// $Id$
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/**
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* MDB2 OCI8 driver
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*
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* @package MDB2
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* @category Database
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* @author Lukas Smith <smith@pooteeweet.org>
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*/
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class MDB2_Driver_oci8 extends MDB2_Driver_Common
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{
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// {{{ properties
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var $string_quoting = array('start' => "'", 'end' => "'", 'escape' => "'", 'escape_pattern' => '@');
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var $identifier_quoting = array('start' => '"', 'end' => '"', 'escape' => '"');
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var $uncommitedqueries = 0;
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// }}}
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// {{{ constructor
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/**
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* Constructor
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*/
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function __construct()
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{
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parent::__construct();
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$this->phptype = 'oci8';
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$this->dbsyntax = 'oci8';
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$this->supported['sequences'] = true;
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$this->supported['indexes'] = true;
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$this->supported['summary_functions'] = true;
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$this->supported['order_by_text'] = true;
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$this->supported['current_id'] = true;
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$this->supported['affected_rows'] = true;
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$this->supported['transactions'] = true;
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$this->supported['savepoints'] = true;
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$this->supported['limit_queries'] = true;
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$this->supported['LOBs'] = true;
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$this->supported['replace'] = 'emulated';
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$this->supported['sub_selects'] = true;
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$this->supported['triggers'] = true;
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$this->supported['auto_increment'] = false; // implementation is broken
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$this->supported['primary_key'] = true;
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$this->supported['result_introspection'] = true;
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$this->supported['prepared_statements'] = true;
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$this->supported['identifier_quoting'] = true;
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$this->supported['pattern_escaping'] = true;
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$this->supported['new_link'] = true;
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$this->options['DBA_username'] = false;
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$this->options['DBA_password'] = false;
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$this->options['database_name_prefix'] = false;
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$this->options['emulate_database'] = true;
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$this->options['default_tablespace'] = false;
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$this->options['default_text_field_length'] = 2000;
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$this->options['lob_allow_url_include'] = false;
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$this->options['result_prefetching'] = false;
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$this->options['max_identifiers_length'] = 30;
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}
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// }}}
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// {{{ errorInfo()
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/**
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* This method is used to collect information about an error
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*
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* @param integer $error
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* @return array
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* @access public
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*/
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function errorInfo($error = null)
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{
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if (is_resource($error)) {
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$error_data = @OCIError($error);
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$error = null;
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} elseif ($this->connection) {
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$error_data = @OCIError($this->connection);
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} else {
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$error_data = @OCIError();
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}
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$native_code = $error_data['code'];
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$native_msg = $error_data['message'];
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if (null === $error) {
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static $ecode_map;
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if (empty($ecode_map)) {
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$ecode_map = array(
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1 => MDB2_ERROR_CONSTRAINT,
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900 => MDB2_ERROR_SYNTAX,
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904 => MDB2_ERROR_NOSUCHFIELD,
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911 => MDB2_ERROR_SYNTAX, //invalid character
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913 => MDB2_ERROR_VALUE_COUNT_ON_ROW,
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921 => MDB2_ERROR_SYNTAX,
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923 => MDB2_ERROR_SYNTAX,
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942 => MDB2_ERROR_NOSUCHTABLE,
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955 => MDB2_ERROR_ALREADY_EXISTS,
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1400 => MDB2_ERROR_CONSTRAINT_NOT_NULL,
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1401 => MDB2_ERROR_INVALID,
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1407 => MDB2_ERROR_CONSTRAINT_NOT_NULL,
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1418 => MDB2_ERROR_NOT_FOUND,
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1435 => MDB2_ERROR_NOT_FOUND,
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1476 => MDB2_ERROR_DIVZERO,
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1722 => MDB2_ERROR_INVALID_NUMBER,
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2289 => MDB2_ERROR_NOSUCHTABLE,
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2291 => MDB2_ERROR_CONSTRAINT,
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2292 => MDB2_ERROR_CONSTRAINT,
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2449 => MDB2_ERROR_CONSTRAINT,
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4081 => MDB2_ERROR_ALREADY_EXISTS, //trigger already exists
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24344 => MDB2_ERROR_SYNTAX, //success with compilation error
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);
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}
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if (isset($ecode_map[$native_code])) {
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$error = $ecode_map[$native_code];
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}
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}
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return array($error, $native_code, $native_msg);
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}
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// }}}
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// {{{ beginTransaction()
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/**
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* Start a transaction or set a savepoint.
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*
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* @param string name of a savepoint to set
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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*
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* @access public
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*/
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function beginTransaction($savepoint = null)
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{
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$this->debug('Starting transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
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if (null !== $savepoint) {
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if (!$this->in_transaction) {
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return $this->raiseError(MDB2_ERROR_INVALID, null, null,
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'savepoint cannot be released when changes are auto committed', __FUNCTION__);
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}
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$query = 'SAVEPOINT '.$savepoint;
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return $this->_doQuery($query, true);
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}
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if ($this->in_transaction) {
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return MDB2_OK; //nothing to do
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}
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if (!$this->destructor_registered && $this->opened_persistent) {
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$this->destructor_registered = true;
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register_shutdown_function('MDB2_closeOpenTransactions');
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}
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$this->in_transaction = true;
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++$this->uncommitedqueries;
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return MDB2_OK;
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}
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// }}}
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// {{{ commit()
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/**
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* Commit the database changes done during a transaction that is in
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* progress or release a savepoint. This function may only be called when
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* auto-committing is disabled, otherwise it will fail. Therefore, a new
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* transaction is implicitly started after committing the pending changes.
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*
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* @param string name of a savepoint to release
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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*
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* @access public
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*/
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function commit($savepoint = null)
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{
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$this->debug('Committing transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
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if (!$this->in_transaction) {
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return $this->raiseError(MDB2_ERROR_INVALID, null, null,
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'commit/release savepoint cannot be done changes are auto committed', __FUNCTION__);
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}
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if (null !== $savepoint) {
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return MDB2_OK;
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}
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if ($this->uncommitedqueries) {
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$connection = $this->getConnection();
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if (MDB2::isError($connection)) {
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return $connection;
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}
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if (!@OCICommit($connection)) {
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return $this->raiseError(null, null, null,
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'Unable to commit transaction', __FUNCTION__);
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}
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$this->uncommitedqueries = 0;
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}
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$this->in_transaction = false;
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return MDB2_OK;
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}
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// }}}
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// {{{ rollback()
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/**
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* Cancel any database changes done during a transaction or since a specific
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* savepoint that is in progress. This function may only be called when
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* auto-committing is disabled, otherwise it will fail. Therefore, a new
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* transaction is implicitly started after canceling the pending changes.
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*
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* @param string name of a savepoint to rollback to
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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*
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* @access public
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*/
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function rollback($savepoint = null)
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{
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$this->debug('Rolling back transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
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if (!$this->in_transaction) {
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return $this->raiseError(MDB2_ERROR_INVALID, null, null,
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'rollback cannot be done changes are auto committed', __FUNCTION__);
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}
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if (null !== $savepoint) {
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$query = 'ROLLBACK TO SAVEPOINT '.$savepoint;
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return $this->_doQuery($query, true);
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}
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if ($this->uncommitedqueries) {
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$connection = $this->getConnection();
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if (MDB2::isError($connection)) {
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return $connection;
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}
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if (!@OCIRollback($connection)) {
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return $this->raiseError(null, null, null,
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'Unable to rollback transaction', __FUNCTION__);
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}
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$this->uncommitedqueries = 0;
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}
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$this->in_transaction = false;
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return MDB2_OK;
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}
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// }}}
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// {{{ function setTransactionIsolation()
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/**
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* Set the transacton isolation level.
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*
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* @param string standard isolation level
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* READ UNCOMMITTED (allows dirty reads)
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* READ COMMITTED (prevents dirty reads)
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* REPEATABLE READ (prevents nonrepeatable reads)
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* SERIALIZABLE (prevents phantom reads)
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* @param array some transaction options:
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* 'wait' => 'WAIT' | 'NO WAIT'
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* 'rw' => 'READ WRITE' | 'READ ONLY'
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*
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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*
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* @access public
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* @since 2.1.1
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*/
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function setTransactionIsolation($isolation, $options = array())
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{
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$this->debug('Setting transaction isolation level', __FUNCTION__, array('is_manip' => true));
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switch ($isolation) {
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case 'READ UNCOMMITTED':
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$isolation = 'READ COMMITTED';
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case 'READ COMMITTED':
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case 'REPEATABLE READ':
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$isolation = 'SERIALIZABLE';
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case 'SERIALIZABLE':
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break;
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default:
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return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
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'isolation level is not supported: '.$isolation, __FUNCTION__);
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}
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$query = "ALTER SESSION ISOLATION LEVEL $isolation";
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return $this->_doQuery($query, true);
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}
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// }}}
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// {{{ _doConnect()
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/**
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* do the grunt work of the connect
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*
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* @return connection on success or MDB2 Error Object on failure
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* @access protected
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*/
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function _doConnect($username, $password, $persistent = false)
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{
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if (!extension_loaded($this->phptype)) {
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return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
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'extension '.$this->phptype.' is not compiled into PHP', __FUNCTION__);
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}
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$sid = '';
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if (!empty($this->dsn['service']) && $this->dsn['hostspec']) {
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//oci8://username:password@foo.example.com[:port]/?service=service
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// service name is given, it is assumed that hostspec is really a
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// hostname, we try to construct an oracle connection string from this
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$port = $this->dsn['port'] ? $this->dsn['port'] : 1521;
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$sid = sprintf("(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)
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(HOST=%s) (PORT=%s)))
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(CONNECT_DATA=(SERVICE_NAME=%s)))",
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$this->dsn['hostspec'],
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$port,
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$this->dsn['service']
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);
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} elseif ($this->dsn['hostspec']) {
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// we are given something like 'oci8://username:password@foo/'
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// we have hostspec but not a service name, now we assume that
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// hostspec is a tnsname defined in tnsnames.ora
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$sid = $this->dsn['hostspec'];
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if (isset($this->dsn['port']) && $this->dsn['port']) {
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$sid = $sid.':'.$this->dsn['port'];
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}
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} else {
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// oci://username:password@
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// if everything fails, we have to rely on environment variables
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// not before a check to 'emulate_database'
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if (!$this->options['emulate_database'] && $this->database_name) {
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$sid = $this->database_name;
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} elseif (getenv('ORACLE_SID')) {
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$sid = getenv('ORACLE_SID');
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} elseif ($sid = getenv('TWO_TASK')) {
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$sid = getenv('TWO_TASK');
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} else {
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return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
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'not a valid connection string or environment variable [ORACLE_SID|TWO_TASK] not set',
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__FUNCTION__);
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}
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}
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if (function_exists('oci_connect')) {
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if ($this->_isNewLinkSet()) {
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$connect_function = 'oci_new_connect';
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} else {
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$connect_function = $persistent ? 'oci_pconnect' : 'oci_connect';
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}
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$charset = empty($this->dsn['charset']) ? null : $this->dsn['charset'];
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$session_mode = empty($this->dsn['session_mode']) ? null : $this->dsn['session_mode'];
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$connection = @$connect_function($username, $password, $sid, $charset, $session_mode);
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$error = @OCIError();
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if (isset($error['code']) && $error['code'] == 12541) {
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// Couldn't find TNS listener. Try direct connection.
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$connection = @$connect_function($username, $password, null, $charset);
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}
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} else {
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$connect_function = $persistent ? 'OCIPLogon' : 'OCILogon';
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$connection = @$connect_function($username, $password, $sid);
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if (!empty($this->dsn['charset'])) {
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$result = $this->setCharset($this->dsn['charset'], $connection);
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if (MDB2::isError($result)) {
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return $result;
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}
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}
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}
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if (!$connection) {
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return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null,
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'unable to establish a connection', __FUNCTION__);
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}
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if (empty($this->dsn['disable_iso_date'])) {
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$query = "ALTER SESSION SET NLS_DATE_FORMAT='YYYY-MM-DD HH24:MI:SS'";
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$err =& $this->_doQuery($query, true, $connection);
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if (MDB2::isError($err)) {
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$this->disconnect(false);
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return $err;
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}
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}
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$query = "ALTER SESSION SET NLS_NUMERIC_CHARACTERS='. '";
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$err =& $this->_doQuery($query, true, $connection);
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if (MDB2::isError($err)) {
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$this->disconnect(false);
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return $err;
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}
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return $connection;
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}
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// }}}
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// {{{ connect()
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/**
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* Connect to the database
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*
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* @return MDB2_OK on success, MDB2 Error Object on failure
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* @access public
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*/
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function connect()
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{
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if (is_resource($this->connection)) {
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//if (count(array_diff($this->connected_dsn, $this->dsn)) == 0
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if (MDB2::areEquals($this->connected_dsn, $this->dsn)
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&& $this->opened_persistent == $this->options['persistent']
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) {
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return MDB2_OK;
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}
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$this->disconnect(false);
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}
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if ($this->database_name && $this->options['emulate_database']) {
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$this->dsn['username'] = $this->options['database_name_prefix'].$this->database_name;
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}
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$connection = $this->_doConnect($this->dsn['username'],
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$this->dsn['password'],
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$this->options['persistent']);
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if (MDB2::isError($connection)) {
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return $connection;
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}
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$this->connection = $connection;
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$this->connected_dsn = $this->dsn;
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$this->connected_database_name = '';
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$this->opened_persistent = $this->options['persistent'];
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$this->dbsyntax = $this->dsn['dbsyntax'] ? $this->dsn['dbsyntax'] : $this->phptype;
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if ($this->database_name) {
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if ($this->database_name != $this->connected_database_name) {
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$query = 'ALTER SESSION SET CURRENT_SCHEMA = "' .strtoupper($this->database_name) .'"';
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$result = $this->_doQuery($query);
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if (MDB2::isError($result)) {
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$err = $this->raiseError($result, null, null,
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'Could not select the database: '.$this->database_name, __FUNCTION__);
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return $err;
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}
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$this->connected_database_name = $this->database_name;
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}
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}
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$this->as_keyword = ' ';
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$server_info = $this->getServerVersion();
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if (is_array($server_info)) {
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if ($server_info['major'] >= '10') {
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$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'],
|
|
$this->options['persistent']);
|
|
if (MDB2::isError($connection)) {
|
|
return $connection;
|
|
}
|
|
|
|
$query = 'ALTER SESSION SET CURRENT_SCHEMA = "' .strtoupper($name) .'"';
|
|
$result = $this->_doQuery($query, true, $connection, false);
|
|
if (MDB2::isError($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, $this->options['persistent']);
|
|
if (MDB2::isError($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, $connection, false);
|
|
if (!MDB2::isError($result)) {
|
|
if ($is_manip) {
|
|
$result = $this->_affectedRows($connection, $result);
|
|
} else {
|
|
$result = $this->_wrapResult($result, $types, true, true, $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 (MDB2::isError($result)) {
|
|
return $result;
|
|
}
|
|
$query = $result;
|
|
}
|
|
if ($this->getOption('disable_query')) {
|
|
if ($is_manip) {
|
|
return 0;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
if (null === $connection) {
|
|
$connection = $this->getConnection();
|
|
if (MDB2::isError($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 (null === $connection) {
|
|
$connection = $this->getConnection();
|
|
if (MDB2::isError($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 = $this->getConnection();
|
|
if (MDB2::isError($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']) {
|
|
return parent::prepare($query, $types, $result_types, $lobs);
|
|
}
|
|
$is_manip = ($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 (MDB2::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 (null === $placeholder_type) {
|
|
$placeholder_type_guess = $query[$p_position];
|
|
}
|
|
|
|
$new_pos = $this->_skipDelimitedStrings($query, $position, $p_position);
|
|
if (MDB2::isError($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 (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 (MDB2::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 = $this->getConnection();
|
|
if (MDB2::isError($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();
|
|
$this->popErrorHandling();
|
|
if (MDB2::isError($result)) {
|
|
if ($ondemand && $result->getCode() == MDB2_ERROR_NOSUCHTABLE) {
|
|
$this->loadModule('Manager', null, true);
|
|
$result = $this->manager->createSequence($seq_name);
|
|
if (MDB2::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)
|
|
{
|
|
$old_seq = $table.(empty($field) ? '' : '_'.$field);
|
|
$sequence_name = $this->quoteIdentifier($this->getSequenceName($table), true);
|
|
$result = $this->queryOne("SELECT $sequence_name.currval", 'integer');
|
|
if (MDB2::isError($result)) {
|
|
$sequence_name = $this->quoteIdentifier($this->getSequenceName($old_seq), true);
|
|
$result = $this->queryOne("SELECT $sequence_name.currval", 'integer');
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ 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 (null !== $rownum) {
|
|
$seek = $this->seek($rownum);
|
|
if (MDB2::isError($seek)) {
|
|
return $seek;
|
|
}
|
|
}
|
|
if ($fetchmode == MDB2_FETCHMODE_DEFAULT) {
|
|
$fetchmode = $this->db->fetchmode;
|
|
}
|
|
if ( $fetchmode == MDB2_FETCHMODE_ASSOC
|
|
|| $fetchmode == MDB2_FETCHMODE_OBJECT
|
|
) {
|
|
@OCIFetchInto($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 (false === $this->result) {
|
|
$err = $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|
'resultset has already been freed', __FUNCTION__);
|
|
return $err;
|
|
}
|
|
return null;
|
|
}
|
|
// remove additional column at the end
|
|
if ($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
|
|
&& $fetchmode != MDB2_FETCHMODE_OBJECT)
|
|
&& !empty($this->types)
|
|
) {
|
|
$row = $this->db->datatype->convertResultRow($this->types, $row, $rtrim);
|
|
} elseif (($fetchmode == MDB2_FETCHMODE_ASSOC
|
|
|| $fetchmode == MDB2_FETCHMODE_OBJECT)
|
|
&& !empty($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 {
|
|
$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 = $this->numCols();
|
|
if (MDB2::isError($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 (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 $this->db->raiseError(null, null, null,
|
|
'Could not get column count', __FUNCTION__);
|
|
}
|
|
if ($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 (false === $free) {
|
|
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 (null === $rownum) {
|
|
if (!end($this->buffer)) {
|
|
return false;
|
|
}
|
|
} elseif (isset($this->buffer[$rownum])) {
|
|
return (bool)$this->buffer[$rownum];
|
|
}
|
|
}
|
|
|
|
$row = true;
|
|
while (((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 $key) {
|
|
if (is_object($buffer[$key]) && is_a($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 (false === $this->result) {
|
|
$err = $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|
'resultset has already been freed', __FUNCTION__);
|
|
return $err;
|
|
}
|
|
if (null === $this->result) {
|
|
return null;
|
|
}
|
|
if (null !== $rownum) {
|
|
$seek = $this->seek($rownum);
|
|
if (MDB2::isError($seek)) {
|
|
return $seek;
|
|
}
|
|
}
|
|
$target_rownum = $this->rownum + 1;
|
|
if ($fetchmode == MDB2_FETCHMODE_DEFAULT) {
|
|
$fetchmode = $this->db->fetchmode;
|
|
}
|
|
if (!$this->_fillBuffer($target_rownum)) {
|
|
return null;
|
|
}
|
|
$row = $this->buffer[$target_rownum];
|
|
if ( $fetchmode == MDB2_FETCHMODE_ASSOC
|
|
|| $fetchmode == MDB2_FETCHMODE_OBJECT
|
|
) {
|
|
$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 ( ( $fetchmode != MDB2_FETCHMODE_ASSOC
|
|
&& $fetchmode != MDB2_FETCHMODE_OBJECT)
|
|
&& !empty($this->types)
|
|
) {
|
|
$row = $this->db->datatype->convertResultRow($this->types, $row, $rtrim);
|
|
} elseif (($fetchmode == MDB2_FETCHMODE_ASSOC
|
|
|| $fetchmode == MDB2_FETCHMODE_OBJECT)
|
|
&& !empty($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 {
|
|
$rowObj = new $object_class($row);
|
|
$row = $rowObj;
|
|
}
|
|
}
|
|
++$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 (false === $this->result) {
|
|
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 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()
|
|
{
|
|
if (false === $this->result) {
|
|
return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|
'resultset has already been freed', __FUNCTION__);
|
|
}
|
|
if (null === $this->result) {
|
|
return true;
|
|
}
|
|
if ($this->_fillBuffer($this->rownum + 1)) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ numRows()
|
|
|
|
/**
|
|
* Returns the number of rows in a result object
|
|
*
|
|
* @return mixed MDB2 Error Object or the number of rows
|
|
* @access public
|
|
*/
|
|
function numRows()
|
|
{
|
|
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;
|
|
}
|
|
$this->_fillBuffer();
|
|
return $this->buffer_rownum;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ free()
|
|
|
|
/**
|
|
* Free the internal resources associated with $result.
|
|
*
|
|
* @return boolean true on success, false if $result is invalid
|
|
* @access public
|
|
*/
|
|
function free()
|
|
{
|
|
$this->buffer = null;
|
|
$this->buffer_rownum = null;
|
|
return parent::free();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* MDB2 OCI8 statement driver
|
|
*
|
|
* @package MDB2
|
|
* @category Database
|
|
* @author Lukas Smith <smith@pooteeweet.org>
|
|
*/
|
|
class MDB2_Statement_oci8 extends MDB2_Statement_Common
|
|
{
|
|
// {{{ Variables (Properties)
|
|
|
|
var $type_maxlengths = array();
|
|
|
|
// }}}
|
|
// {{{ bindParam()
|
|
|
|
/**
|
|
* Bind a variable to a parameter of a prepared query.
|
|
*
|
|
* @param int $parameter the order number of the parameter in the query
|
|
* statement. The order number of the first parameter is 1.
|
|
* @param mixed &$value variable that is meant to be bound to specified
|
|
* parameter. The type of the value depends on the $type argument.
|
|
* @param string $type specifies the type of the field
|
|
* @param int $maxlength specifies the maximum length of the field; if set to -1, the
|
|
* current length of $value is used
|
|
*
|
|
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
|
*
|
|
* @access public
|
|
*/
|
|
function bindParam($parameter, &$value, $type = null, $maxlength = -1)
|
|
{
|
|
if (!is_numeric($parameter)) {
|
|
$parameter = preg_replace('/^:(.*)$/', '\\1', $parameter);
|
|
}
|
|
if (MDB2_OK === ($ret = parent::bindParam($parameter, $value, $type))) {
|
|
$this->type_maxlengths[$parameter] = $maxlength;
|
|
}
|
|
|
|
return $ret;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _execute()
|
|
|
|
/**
|
|
* Execute a prepared query statement helper method.
|
|
*
|
|
* @param mixed $result_class string which specifies which result class to use
|
|
* @param mixed $result_wrap_class string which specifies which class to wrap results in
|
|
*
|
|
* @return mixed MDB2_Result or integer (affected rows) on success,
|
|
* a MDB2 error on failure
|
|
* @access private
|
|
*/
|
|
function _execute($result_class = true, $result_wrap_class = true)
|
|
{
|
|
if (null === $this->statement) {
|
|
return parent::_execute($result_class, $result_wrap_class);
|
|
}
|
|
$this->db->last_query = $this->query;
|
|
$this->db->debug($this->query, 'execute', array('is_manip' => $this->is_manip, 'when' => 'pre', 'parameters' => $this->values));
|
|
if ($this->db->getOption('disable_query')) {
|
|
$result = $this->is_manip ? 0 : null;
|
|
return $result;
|
|
}
|
|
|
|
$connection = $this->db->getConnection();
|
|
if (MDB2::isError($connection)) {
|
|
return $connection;
|
|
}
|
|
|
|
$result = MDB2_OK;
|
|
$lobs = $quoted_values = array();
|
|
$i = 0;
|
|
foreach ($this->positions as $parameter) {
|
|
if (!array_key_exists($parameter, $this->values)) {
|
|
return $this->db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
|
|
'Unable to bind to missing placeholder: '.$parameter, __FUNCTION__);
|
|
}
|
|
$type = array_key_exists($parameter, $this->types) ? $this->types[$parameter] : null;
|
|
if ($type == 'clob' || $type == 'blob') {
|
|
$lobs[$i]['file'] = false;
|
|
if (is_resource($this->values[$parameter])) {
|
|
$fp = $this->values[$parameter];
|
|
$this->values[$parameter] = '';
|
|
while (!feof($fp)) {
|
|
$this->values[$parameter] .= fread($fp, 8192);
|
|
}
|
|
} elseif (is_object($this->values[$parameter]) && is_a($this->values[$parameter], 'OCI-Lob')) {
|
|
//do nothing
|
|
} elseif ($this->db->getOption('lob_allow_url_include')
|
|
&& preg_match('/^(\w+:\/\/)(.*)$/', $this->values[$parameter], $match)
|
|
) {
|
|
$lobs[$i]['file'] = true;
|
|
if ($match[1] == 'file://') {
|
|
$this->values[$parameter] = $match[2];
|
|
}
|
|
}
|
|
$lobs[$i]['value'] = $this->values[$parameter];
|
|
$lobs[$i]['descriptor'] =& $this->values[$parameter];
|
|
// Test to see if descriptor has already been created for this
|
|
// variable (i.e. if it has been bound more than once):
|
|
if (!(is_object($this->values[$parameter]) && is_a($this->values[$parameter], 'OCI-Lob'))) {
|
|
$this->values[$parameter] = @OCINewDescriptor($connection, OCI_D_LOB);
|
|
if (false === $this->values[$parameter]) {
|
|
$result = $this->db->raiseError(null, null, null,
|
|
'Unable to create descriptor for LOB in parameter: '.$parameter, __FUNCTION__);
|
|
break;
|
|
}
|
|
}
|
|
$lob_type = ($type == 'blob' ? OCI_B_BLOB : OCI_B_CLOB);
|
|
if (!@OCIBindByName($this->statement, ':'.$parameter, $lobs[$i]['descriptor'], -1, $lob_type)) {
|
|
$result = $this->db->raiseError($this->statement, null, null,
|
|
'could not bind LOB parameter', __FUNCTION__);
|
|
break;
|
|
}
|
|
} else if ($type == OCI_B_BFILE) {
|
|
// Test to see if descriptor has already been created for this
|
|
// variable (i.e. if it has been bound more than once):
|
|
if (!(is_object($this->values[$parameter]) && is_a($this->values[$parameter], "OCI-Lob"))) {
|
|
$this->values[$parameter] = @OCINewDescriptor($connection, OCI_D_FILE);
|
|
if (false === $this->values[$parameter]) {
|
|
$result = $this->db->raiseError(null, null, null,
|
|
'Unable to create descriptor for BFILE in parameter: '.$parameter, __FUNCTION__);
|
|
break;
|
|
}
|
|
}
|
|
if (!@OCIBindByName($this->statement, ':'.$parameter, $this->values[$parameter], -1, $type)) {
|
|
$result = $this->db->raiseError($this->statement, null, null,
|
|
'Could not bind BFILE parameter', __FUNCTION__);
|
|
break;
|
|
}
|
|
} else if ($type == OCI_B_ROWID) {
|
|
// Test to see if descriptor has already been created for this
|
|
// variable (i.e. if it has been bound more than once):
|
|
if (!is_a($this->values[$parameter], "OCI-Lob")) {
|
|
$this->values[$parameter] = @OCINewDescriptor($connection, OCI_D_ROWID);
|
|
if (false === $this->values[$parameter]) {
|
|
$result = $this->db->raiseError(null, null, null,
|
|
'Unable to create descriptor for ROWID in parameter: '.$parameter, __FUNCTION__);
|
|
break;
|
|
}
|
|
}
|
|
if (!@OCIBindByName($this->statement, ':'.$parameter, $this->values[$parameter], -1, $type)) {
|
|
$result = $this->db->raiseError($this->statement, null, null,
|
|
'Could not bind ROWID parameter', __FUNCTION__);
|
|
break;
|
|
}
|
|
} else if ($type == OCI_B_CURSOR) {
|
|
// Test to see if cursor has already been allocated for this
|
|
// variable (i.e. if it has been bound more than once):
|
|
if (!is_resource($this->values[$parameter]) || !get_resource_type($this->values[$parameter]) == "oci8 statement") {
|
|
$this->values[$parameter] = @OCINewCursor($connection);
|
|
if (false === $this->values[$parameter]) {
|
|
$result = $this->db->raiseError(null, null, null,
|
|
'Unable to allocate cursor for parameter: '.$parameter, __FUNCTION__);
|
|
break;
|
|
}
|
|
}
|
|
if (!@OCIBindByName($this->statement, ':'.$parameter, $this->values[$parameter], -1, $type)) {
|
|
$result = $this->db->raiseError($this->statement, null, null,
|
|
'Could not bind CURSOR parameter', __FUNCTION__);
|
|
break;
|
|
}
|
|
} else {
|
|
$maxlength = array_key_exists($parameter, $this->type_maxlengths) ? $this->type_maxlengths[$parameter] : -1;
|
|
$this->values[$parameter] = $this->db->quote($this->values[$parameter], $type, false);
|
|
$quoted_values[$i] =& $this->values[$parameter];
|
|
if (MDB2::isError($quoted_values[$i])) {
|
|
return $quoted_values[$i];
|
|
}
|
|
if (!@OCIBindByName($this->statement, ':'.$parameter, $quoted_values[$i], $maxlength)) {
|
|
$result = $this->db->raiseError($this->statement, null, null,
|
|
'could not bind non-abstract parameter', __FUNCTION__);
|
|
break;
|
|
}
|
|
}
|
|
++$i;
|
|
}
|
|
|
|
$lob_keys = array_keys($lobs);
|
|
if (!MDB2::isError($result)) {
|
|
$mode = (!empty($lobs) || $this->db->in_transaction) ? OCI_DEFAULT : OCI_COMMIT_ON_SUCCESS;
|
|
if (!@OCIExecute($this->statement, $mode)) {
|
|
$err = $this->db->raiseError($this->statement, null, null,
|
|
'could not execute statement', __FUNCTION__);
|
|
return $err;
|
|
}
|
|
|
|
if (!empty($lobs)) {
|
|
foreach ($lob_keys as $i) {
|
|
if ((null !== $lobs[$i]['value']) && $lobs[$i]['value'] !== '') {
|
|
if (is_object($lobs[$i]['value'])) {
|
|
// Probably a NULL LOB
|
|
// @see http://bugs.php.net/bug.php?id=27485
|
|
continue;
|
|
}
|
|
if ($lobs[$i]['file']) {
|
|
$result = $lobs[$i]['descriptor']->savefile($lobs[$i]['value']);
|
|
} else {
|
|
$result = $lobs[$i]['descriptor']->save($lobs[$i]['value']);
|
|
}
|
|
if (!$result) {
|
|
$result = $this->db->raiseError(null, null, null,
|
|
'Unable to save descriptor contents', __FUNCTION__);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!MDB2::isError($result)) {
|
|
if (!$this->db->in_transaction) {
|
|
if (!@OCICommit($connection)) {
|
|
$result = $this->db->raiseError(null, null, null,
|
|
'Unable to commit transaction', __FUNCTION__);
|
|
}
|
|
} else {
|
|
++$this->db->uncommitedqueries;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (MDB2::isError($result)) {
|
|
return $result;
|
|
}
|
|
|
|
if ($this->is_manip) {
|
|
$affected_rows = $this->db->_affectedRows($connection, $this->statement);
|
|
return $affected_rows;
|
|
}
|
|
|
|
$result = $this->db->_wrapResult($this->statement, $this->result_types,
|
|
$result_class, $result_wrap_class, $this->limit, $this->offset);
|
|
$this->db->debug($this->query, 'execute', array('is_manip' => $this->is_manip, 'when' => 'post', 'result' => $result));
|
|
return $result;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ free()
|
|
|
|
/**
|
|
* Release resources allocated for the specified prepared query.
|
|
*
|
|
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
|
* @access public
|
|
*/
|
|
function free()
|
|
{
|
|
if (null === $this->positions) {
|
|
return $this->db->raiseError(MDB2_ERROR, null, null,
|
|
'Prepared statement has already been freed', __FUNCTION__);
|
|
}
|
|
$result = MDB2_OK;
|
|
|
|
if ((null !== $this->statement) && !@OCIFreeStatement($this->statement)) {
|
|
$result = $this->db->raiseError(null, null, null,
|
|
'Could not free statement', __FUNCTION__);
|
|
}
|
|
|
|
parent::free();
|
|
return $result;
|
|
}
|
|
}
|
|
?>
|