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1167 lines
39 KiB
PHP
1167 lines
39 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) 1998-2004 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 $escape_quotes = "'";
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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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$this->supported['limit_queries'] = 'emulated';
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$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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$this->supported['auto_increment'] = false; // not implemented
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$this->supported['primary_key'] = false; // not implemented
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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'] = 4000;
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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 = $error_data['message'];
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if (is_null($error)) {
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static $ecode_map;
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if (empty($ecode_map)) {
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$ecode_map = array(
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1 => MDB2_ERROR_CONSTRAINT,
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900 => MDB2_ERROR_SYNTAX,
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904 => MDB2_ERROR_NOSUCHFIELD,
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913 => MDB2_ERROR_VALUE_COUNT_ON_ROW,
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921 => MDB2_ERROR_SYNTAX,
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923 => MDB2_ERROR_SYNTAX,
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942 => MDB2_ERROR_NOSUCHTABLE,
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955 => MDB2_ERROR_ALREADY_EXISTS,
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1400 => MDB2_ERROR_CONSTRAINT_NOT_NULL,
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1401 => MDB2_ERROR_INVALID,
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1407 => MDB2_ERROR_CONSTRAINT_NOT_NULL,
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1418 => MDB2_ERROR_NOT_FOUND,
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1476 => MDB2_ERROR_DIVZERO,
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1722 => MDB2_ERROR_INVALID_NUMBER,
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2289 => MDB2_ERROR_NOSUCHTABLE,
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2291 => MDB2_ERROR_CONSTRAINT,
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2292 => MDB2_ERROR_CONSTRAINT,
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2449 => MDB2_ERROR_CONSTRAINT,
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);
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}
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if (isset($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, $native_msg);
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}
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// }}}
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// {{{ beginTransaction()
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/**
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* Start a transaction.
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*
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function beginTransaction()
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{
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$this->debug('starting transaction', 'beginTransaction');
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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.
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*
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function commit()
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{
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$this->debug('commit transaction', 'commit');
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if (!$this->in_transaction) {
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return $this->raiseError(MDB2_ERROR, null, null,
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'commit: transaction changes are being auto committed');
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}
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if ($this->uncommitedqueries) {
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if (!@OCICommit($this->connection)) {
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return $this->raiseError();
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}
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$this->uncommitedqueries = 0;
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}
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$this->in_transaction = false;
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return MDB2_OK;
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}
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// }}}
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// {{{ rollback()
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/**
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* Cancel any database changes done during a transaction that is in
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* progress.
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*
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function rollback()
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{
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$this->debug('rolling back transaction', 'rollback');
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if (!$this->in_transaction) {
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return $this->raiseError(MDB2_ERROR, null, null,
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'rollback: transactions can not be rolled back when changes are auto committed');
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}
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if ($this->uncommitedqueries) {
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if (!@OCIRollback($this->connection)) {
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return $this->raiseError();
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}
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$this->uncommitedqueries = 0;
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}
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$this->in_transaction = false;
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return MDB2_OK;
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}
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// }}}
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// {{{ _doConnect()
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/**
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* do the grunt work of the connect
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*
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* @return connection on success or MDB2 Error Object on failure
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* @access protected
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*/
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function _doConnect($username, $password, $persistent = false)
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{
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if (!PEAR::loadExtension($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');
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}
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if (isset($this->dsn['hostspec'])) {
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$sid = $this->dsn['hostspec'];
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} else {
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$sid = getenv('ORACLE_SID');
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}
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if (empty($sid)) {
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return $this->raiseError(MDB2_ERROR, null, null,
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'it was not specified a valid Oracle Service Identifier (SID)');
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}
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if (function_exists('oci_connect')) {
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if (isset($this->dsn['new_link'])
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&& ($this->dsn['new_link'] == 'true' || $this->dsn['new_link'] === true)
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) {
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$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 : $this->dsn['charset'];
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$connection = @$connect_function($username, $password, $sid, $charset);
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$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, $sid);
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}
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if (!$connection) {
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return $this->raiseError(MDB2_ERROR_CONNECT_FAILED);
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}
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return $connection;
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}
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// }}}
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// {{{ connect()
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/**
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* Connect to the database
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*
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* @return MDB2_OK on success, MDB2 Error Object on failure
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* @access public
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*/
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function connect()
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{
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if ($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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if (is_resource($this->connection)) {
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if (count(array_diff($this->connected_dsn, $this->dsn)) == 0
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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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$connection = $this->_doConnect(
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$this->dsn['username'],
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$this->dsn['password'],
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$this->options['persistent']
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);
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if (PEAR::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->opened_persistent = $this->options['persistent'];
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$this->dbsyntax = $this->dsn['dbsyntax'] ? $this->dsn['dbsyntax'] : $this->phptype;
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$query = "ALTER SESSION SET NLS_DATE_FORMAT='YYYY-MM-DD HH24:MI:SS'";
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$err = $this->_doQuery($query, true);
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if (PEAR::isError($err)) {
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$this->disconnect(false);
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return $err;
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}
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$query = "ALTER SESSION SET NLS_NUMERIC_CHARACTERS='. '";
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$err = $this->_doQuery($query, true);
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if (PEAR::isError($err)) {
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$this->disconnect(false);
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return $err;
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}
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return MDB2_OK;
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}
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// }}}
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// {{{ disconnect()
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/**
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* Log out and disconnect from the database.
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*
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* @return mixed true on success, false if not connected and error
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* object on error
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* @access public
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*/
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function disconnect($force = true)
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{
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if (is_resource($this->connection)) {
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if (!$this->opened_persistent || $force) {
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if (function_exists('oci_close')) {
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@oci_close($this->connection);
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} else {
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@OCILogOff($this->connection);
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}
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}
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$this->connection = 0;
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$this->uncommitedqueries = 0;
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}
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return MDB2_OK;
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}
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// }}}
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// {{{ standaloneQuery()
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/**
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* execute a query as DBA
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*
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* @param string $query the SQL query
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* @param mixed $types array that contains the types of the columns in
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* the result set
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function &standaloneQuery($query, $types = null)
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{
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$connection = $this->_doConnect(
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$this->options['DBA_username'],
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$this->options['DBA_password'],
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$this->options['persistent']
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);
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if (PEAR::isError($connection)) {
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return $connection;
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}
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$isManip = MDB2::isManip($query);
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$offset = $this->row_offset;
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$limit = $this->row_limit;
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$this->row_offset = $this->row_limit = 0;
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$query = $this->_modifyQuery($query, $isManip, $limit, $offset);
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$result = $this->_doQuery($query, $isManip, $connection, false);
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@OCILogOff($connection);
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if (PEAR::isError($result)) {
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return $result;
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}
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if ($isManip) {
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return $result;
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}
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$return =& $this->_wrapResult($result, $types, true, false, $limit, $offset);
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return $return;
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}
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// }}}
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// {{{ _modifyQuery()
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/**
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* Changes a query string for various DBMS specific reasons
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*
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* @param string $query query to modify
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* @return the new (modified) query
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* @access protected
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*/
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function _modifyQuery($query)
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{
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// "SELECT 2+2" must be "SELECT 2+2 FROM dual" in Oracle
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if (preg_match('/^\s*SELECT/i', $query)
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&& !preg_match('/\sFROM\s/i', $query)
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) {
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$query.= " FROM dual";
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}
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return $query;
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}
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// }}}
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// {{{ _doQuery()
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/**
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* Execute a query
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* @param string $query query
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* @param boolean $isManip if the query is a manipulation query
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|
* @param resource $connection
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|
* @param string $database_name
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* @return result or error object
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|
* @access protected
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*/
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function _doQuery($query, $isManip = false, $connection = null, $database_name = null)
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{
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$this->last_query = $query;
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$this->debug($query, 'query');
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if ($this->getOption('disable_query')) {
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if ($isManip) {
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return 0;
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}
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return null;
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}
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|
|
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if (is_null($connection)) {
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$err = $this->connect();
|
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if (PEAR::isError($err)) {
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return $err;
|
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}
|
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$connection = $this->connection;
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}
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$result = @OCIParse($connection, $query);
|
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if (!$result) {
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return $this->raiseError(MDB2_ERROR, null, null,
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'Could not create statement');
|
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}
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|
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$mode = $this->in_transaction ? OCI_DEFAULT : OCI_COMMIT_ON_SUCCESS;
|
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if (!@OCIExecute($result, $mode)) {
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return $this->raiseError($result);
|
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}
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|
|
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if ($isManip) {
|
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return @OCIRowCount($result);
|
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}
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|
|
|
if (is_numeric($this->options['result_buffering'])) {
|
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@ocisetprefetch($result, $this->options['result_buffering']);
|
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}
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return $result;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ prepare()
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|
|
|
/**
|
|
* 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 :[a-zA-Z] and are placeholders which can be set using
|
|
* bindParam() and the query can be send off using the execute() method.
|
|
*
|
|
* @param string $query the query to prepare
|
|
* @param mixed $types array that contains the types of the placeholders
|
|
* @param mixed $result_types array that contains the types of the columns in
|
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* the result set
|
|
* @return mixed resource handle for the prepared query on success, a MDB2
|
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* error on failure
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* @access public
|
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* @see bindParam, execute
|
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*/
|
|
function &prepare($query, $types = null, $result_types = null)
|
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{
|
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$this->debug($query, 'prepare');
|
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$query = $this->_modifyQuery($query);
|
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$contains_lobs = false;
|
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if (is_array($types)) {
|
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$columns = $variables = '';
|
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foreach ($types as $parameter => $type) {
|
|
if ($type == 'clob' || $type == 'blob') {
|
|
$contains_lobs = true;
|
|
$columns.= ($columns ? ', ' : ' RETURNING ').$parameter;
|
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$variables.= ($variables ? ', ' : ' INTO ').':'.$parameter;
|
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}
|
|
}
|
|
}
|
|
$placeholder_type_guess = $placeholder_type = null;
|
|
$question = '?';
|
|
$colon = ':';
|
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$position = 0;
|
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$parameter = -1;
|
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while ($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];
|
|
}
|
|
if (is_int($quote = strpos($query, "'", $position)) && $quote < $p_position) {
|
|
if (!is_int($end_quote = strpos($query, "'", $quote + 1))) {
|
|
$err =& $this->raiseError(MDB2_ERROR_SYNTAX, null, null,
|
|
'prepare: query with an unterminated text string specified');
|
|
return $err;
|
|
}
|
|
switch ($this->escape_quotes) {
|
|
case '':
|
|
case "'":
|
|
$position = $end_quote + 1;
|
|
break;
|
|
default:
|
|
if ($end_quote == $quote + 1) {
|
|
$position = $end_quote + 1;
|
|
} else {
|
|
if ($query[$end_quote-1] == $this->escape_quotes) {
|
|
$position = $end_quote;
|
|
} else {
|
|
$position = $end_quote + 1;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
} elseif ($query[$position] == $placeholder_type_guess) {
|
|
if ($placeholder_type_guess == ':' && !$contains_lobs) {
|
|
break;
|
|
}
|
|
if (is_null($placeholder_type)) {
|
|
$placeholder_type = $query[$p_position];
|
|
$question = $colon = $placeholder_type;
|
|
}
|
|
if ($contains_lobs) {
|
|
if ($placeholder_type == ':') {
|
|
$parameter = preg_replace('/^.{'.($position+1).'}([a-z0-9_]+).*$/si', '\\1', $query);
|
|
if ($parameter === '') {
|
|
$err =& $this->raiseError(MDB2_ERROR_SYNTAX, null, null,
|
|
'prepare: named parameter with an empty name');
|
|
return $err;
|
|
}
|
|
$length = strlen($parameter)+1;
|
|
} else {
|
|
++$parameter;
|
|
$length = strlen($parameter);
|
|
}
|
|
if (isset($types[$parameter])
|
|
&& ($types[$parameter] == 'clob' || $types[$parameter] == 'blob')
|
|
) {
|
|
$value = $this->quote(true, $types[$parameter]);
|
|
$query = substr_replace($query, $value, $p_position, $length);
|
|
$position = $p_position + strlen($value) - 1;
|
|
} elseif ($placeholder_type == '?') {
|
|
$query = substr_replace($query, ':'.$parameter, $p_position, 1);
|
|
$position = $p_position + strlen($parameter);
|
|
}
|
|
} else {
|
|
$query = substr_replace($query, ':'.++$parameter, $p_position, 1);
|
|
$position = $p_position + strlen($parameter);
|
|
}
|
|
} else {
|
|
$position = $p_position;
|
|
}
|
|
}
|
|
if (is_array($types)) {
|
|
$query.= $columns.$variables;
|
|
}
|
|
$statement = @OCIParse($this->connection, $query);
|
|
if (!$statement) {
|
|
$err =& $this->raiseError(MDB2_ERROR, null, null,
|
|
'Could not create statement');
|
|
return $err;
|
|
}
|
|
|
|
$class_name = 'MDB2_Statement_'.$this->phptype;
|
|
$obj =& new $class_name($this, $statement, $query, $types, $result_types, $this->row_limit, $this->row_offset);
|
|
return $obj;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ nextID()
|
|
|
|
/**
|
|
* returns the next free id of a sequence
|
|
*
|
|
* @param string $seq_name name of the sequence
|
|
* @param boolean $ondemand when true the seqence is
|
|
* automatic created, if it
|
|
* not exists
|
|
* @return mixed MDB2 Error Object or id
|
|
* @access public
|
|
*/
|
|
function nextID($seq_name, $ondemand = true)
|
|
{
|
|
$sequence_name = $this->getSequenceName($seq_name);
|
|
$query = "SELECT $sequence_name.nextval FROM DUAL";
|
|
$this->expectError(MDB2_ERROR_NOSUCHTABLE);
|
|
$result = $this->queryOne($query, 'integer');
|
|
$this->popExpect();
|
|
if (PEAR::isError($result)) {
|
|
if ($ondemand && $result->getCode() == MDB2_ERROR_NOSUCHTABLE) {
|
|
$this->loadModule('Manager');
|
|
$result = $this->manager->createSequence($seq_name, 1);
|
|
if (PEAR::isError($result)) {
|
|
return $result;
|
|
}
|
|
return $this->nextId($seq_name, false);
|
|
}
|
|
}
|
|
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);
|
|
return $this->queryOne("SELECT $sequence_name.currval FROM DUAL");
|
|
}
|
|
}
|
|
|
|
class MDB2_Result_oci8 extends MDB2_Result_Common
|
|
{
|
|
// {{{ _skipLimitOffset()
|
|
|
|
/**
|
|
* Skip the first row of a result set.
|
|
*
|
|
* @param resource $result
|
|
* @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
|
|
* @access protected
|
|
*/
|
|
function _skipLimitOffset()
|
|
{
|
|
if ($this->limit) {
|
|
if ($this->rownum > $this->limit) {
|
|
return false;
|
|
}
|
|
}
|
|
if ($this->offset) {
|
|
while ($this->offset_count < $this->offset) {
|
|
++$this->offset_count;
|
|
if (!@OCIFetchInto($this->result, $row, OCI_RETURN_NULLS)) {
|
|
$this->offset_count = $this->offset;
|
|
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->_skipLimitOffset()) {
|
|
$null = null;
|
|
return $null;
|
|
}
|
|
if (!is_null($rownum)) {
|
|
$seek = $this->seek($rownum);
|
|
if (PEAR::isError($seek)) {
|
|
return $seek;
|
|
}
|
|
}
|
|
if ($fetchmode == MDB2_FETCHMODE_DEFAULT) {
|
|
$fetchmode = $this->db->fetchmode;
|
|
}
|
|
if ($fetchmode & MDB2_FETCHMODE_ASSOC) {
|
|
@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 (is_null($this->result)) {
|
|
$err =& $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|
'fetchRow: resultset has already been freed');
|
|
return $err;
|
|
}
|
|
$null = null;
|
|
return $null;
|
|
|
|
}
|
|
if ($this->db->options['portability'] & MDB2_PORTABILITY_RTRIM) {
|
|
$this->db->_fixResultArrayValues($row, MDB2_PORTABILITY_RTRIM);
|
|
}
|
|
if (!empty($this->values)) {
|
|
$this->_assignBindColumns($row);
|
|
}
|
|
if (!empty($this->types)) {
|
|
$row = $this->db->datatype->convertResultRow($this->types, $row);
|
|
}
|
|
if ($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 associative array variable
|
|
* that holds the names of columns. The indexes of the array are
|
|
* the column names mapped to lower case and the values are the
|
|
* respective numbers of the columns starting from 0. 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($cols)) {
|
|
if (is_null($this->result)) {
|
|
return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|
'numCols: resultset has already been freed');
|
|
}
|
|
return $this->db->raiseError();
|
|
}
|
|
return $cols;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ free()
|
|
|
|
/**
|
|
* Free the internal resources associated with $result.
|
|
*
|
|
* @return boolean true on success, false if $result is invalid
|
|
* @access public
|
|
*/
|
|
function free()
|
|
{
|
|
$free = @OCIFreeCursor($this->result);
|
|
if (!$free) {
|
|
if (is_null($this->result)) {
|
|
return MDB2_OK;
|
|
}
|
|
return $this->db->raiseError();
|
|
}
|
|
$this->result = null;
|
|
return MDB2_OK;
|
|
}
|
|
}
|
|
|
|
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];
|
|
}
|
|
}
|
|
|
|
if (!$this->_skipLimitOffset()) {
|
|
return false;
|
|
}
|
|
|
|
$row = true;
|
|
while ((is_null($rownum) || $this->buffer_rownum < $rownum)
|
|
&& (!$this->limit || $this->buffer_rownum < $this->limit)
|
|
&& ($row = @OCIFetchInto($this->result, $buffer, OCI_RETURN_NULLS))
|
|
) {
|
|
++$this->buffer_rownum;
|
|
$this->buffer[$this->buffer_rownum] = $buffer;
|
|
}
|
|
|
|
if (!$row) {
|
|
++$this->buffer_rownum;
|
|
$this->buffer[$this->buffer_rownum] = false;
|
|
return false;
|
|
} elseif ($this->limit && $this->buffer_rownum >= $this->limit) {
|
|
++$this->buffer_rownum;
|
|
$this->buffer[$this->buffer_rownum] = 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, $rownum = null)
|
|
{
|
|
if (is_null($this->result)) {
|
|
$err =& $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|
'fetchRow: resultset has already been freed');
|
|
return $err;
|
|
}
|
|
if (!is_null($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 = $column_names;
|
|
}
|
|
if (!empty($this->values)) {
|
|
$this->_assignBindColumns($row);
|
|
}
|
|
if (!empty($this->types)) {
|
|
$row = $this->db->datatype->convertResultRow($this->types, $row);
|
|
}
|
|
if ($this->db->options['portability'] & MDB2_PORTABILITY_RTRIM) {
|
|
$this->db->_fixResultArrayValues($row, MDB2_PORTABILITY_RTRIM);
|
|
}
|
|
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 (is_null($this->result)) {
|
|
return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|
'seek: resultset has already been freed');
|
|
}
|
|
$this->rownum = $rownum - 1;
|
|
return MDB2_OK;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ valid()
|
|
|
|
/**
|
|
* check if the end of the result set has been reached
|
|
*
|
|
* @return mixed true or false on sucess, a MDB2 error on failure
|
|
* @access public
|
|
*/
|
|
function valid()
|
|
{
|
|
if (is_null($this->result)) {
|
|
return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|
'valid: resultset has already been freed');
|
|
}
|
|
if ($this->_fillBuffer($this->rownum + 1)) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ numRows()
|
|
|
|
/**
|
|
* returns the number of rows in a result object
|
|
*
|
|
* @return mixed MDB2 Error Object or the number of rows
|
|
* @access public
|
|
*/
|
|
function numRows()
|
|
{
|
|
if (is_null($this->result)) {
|
|
return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|
'seek: resultset has already been freed');
|
|
}
|
|
$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;
|
|
$free = parent::free();
|
|
}
|
|
}
|
|
|
|
class MDB2_Statement_oci8 extends MDB2_Statement_Common
|
|
{
|
|
// }}}
|
|
// {{{ _execute()
|
|
|
|
/**
|
|
* Execute a prepared query statement helper method.
|
|
*
|
|
* @param mixed $result_class string which specifies which result class to use
|
|
* @param mixed $result_wrap_class string which specifies which class to wrap results in
|
|
* @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
|
|
* @access private
|
|
*/
|
|
function &_execute($result_class = true, $result_wrap_class = false)
|
|
{
|
|
$isManip = MDB2::isManip($this->query);
|
|
$this->db->last_query = $this->query;
|
|
$this->db->debug($this->query, 'execute');
|
|
if ($this->db->getOption('disable_query')) {
|
|
if ($isManip) {
|
|
$return = 0;
|
|
return $return;
|
|
}
|
|
$null = null;
|
|
return $null;
|
|
}
|
|
|
|
$connected = $this->db->connect();
|
|
if (PEAR::isError($connected)) {
|
|
return $connected;
|
|
}
|
|
|
|
$result = MDB2_OK;
|
|
$lobs = $quoted_values = array();
|
|
$i = 0;
|
|
foreach ($this->values as $parameter => $value) {
|
|
$type = array_key_exists($parameter, $this->types) ? $this->types[$parameter] : null;
|
|
if ($type == 'clob' || $type == 'blob') {
|
|
$lobs[$i]['file'] = false;
|
|
if (is_resource($value)) {
|
|
$fp = $value;
|
|
$value = '';
|
|
while (!feof($fp)) {
|
|
$value.= fread($fp, 8192);
|
|
}
|
|
} elseif (preg_match('/^(\w+:\/\/)(.*)$/', $value, $match)) {
|
|
$lobs[$i]['file'] = true;
|
|
if ($match[1] == 'file://') {
|
|
$value = $match[2];
|
|
}
|
|
}
|
|
$lobs[$i]['value'] = $value;
|
|
$lobs[$i]['descriptor'] = @OCINewDescriptor($this->db->connection, OCI_D_LOB);
|
|
if (!is_object($lobs[$i]['descriptor'])) {
|
|
$result = $this->db->raiseError();
|
|
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);
|
|
break;
|
|
}
|
|
} else {
|
|
$quoted_values[$i] = $this->db->quote($value, $type, false);
|
|
if (PEAR::isError($quoted_values[$i])) {
|
|
return $quoted_values[$i];
|
|
}
|
|
if (!@OCIBindByName($this->statement, ':'.$parameter, $quoted_values[$i])) {
|
|
$result = $this->db->raiseError($this->statement);
|
|
break;
|
|
}
|
|
}
|
|
++$i;
|
|
}
|
|
|
|
if (!PEAR::isError($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);
|
|
return $err;
|
|
}
|
|
|
|
if (!empty($lobs)) {
|
|
foreach ($lobs as $i => $stream) {
|
|
if (!is_null($stream['value']) && $stream['value'] !== '') {
|
|
if ($stream['file']) {
|
|
$result = $lobs[$i]['descriptor']->savefile($stream['value']);
|
|
} else {
|
|
$result = $lobs[$i]['descriptor']->save($stream['value']);
|
|
}
|
|
if (!$result) {
|
|
$result = $this->db->raiseError();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!PEAR::isError($result)) {
|
|
if (!$this->db->in_transaction) {
|
|
if (!@OCICommit($this->db->connection)) {
|
|
$result = $this->db->raiseError();
|
|
}
|
|
} else {
|
|
++$this->db->uncommitedqueries;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
$keys = array_keys($lobs);
|
|
foreach ($keys as $key) {
|
|
$lobs[$key]['descriptor']->free();
|
|
}
|
|
|
|
if (PEAR::isError($result)) {
|
|
return $result;
|
|
}
|
|
|
|
if ($isManip) {
|
|
$return = @OCIRowCount($this->statement);
|
|
} else {
|
|
$return = $this->db->_wrapResult($this->statement, $isManip, $this->types,
|
|
$result_class, $result_wrap_class, $this->row_offset, $this->row_limit);
|
|
}
|
|
return $return;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ free()
|
|
|
|
/**
|
|
* Release resources allocated for the specified prepared query.
|
|
*
|
|
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
|
* @access public
|
|
*/
|
|
function free()
|
|
{
|
|
if (!@OCIFreeStatement($this->statement)) {
|
|
return $this->db->raiseError();
|
|
}
|
|
return MDB2_OK;
|
|
}
|
|
}
|
|
?>
|