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-<?php
-// vim: set et ts=4 sw=4 fdm=marker:
-// +----------------------------------------------------------------------+
-// | PHP versions 4 and 5 |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1998-2004 Manuel Lemos, Tomas V.V.Cox, |
-// | Stig. S. Bakken, Lukas Smith |
-// | All rights reserved. |
-// +----------------------------------------------------------------------+
-// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB |
-// | API as well as database abstraction for PHP applications. |
-// | This LICENSE is in the BSD license style. |
-// | |
-// | Redistribution and use in source and binary forms, with or without |
-// | modification, are permitted provided that the following conditions |
-// | are met: |
-// | |
-// | Redistributions of source code must retain the above copyright |
-// | notice, this list of conditions and the following disclaimer. |
-// | |
-// | Redistributions in binary form must reproduce the above copyright |
-// | notice, this list of conditions and the following disclaimer in the |
-// | documentation and/or other materials provided with the distribution. |
-// | |
-// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
-// | Lukas Smith nor the names of his contributors may be used to endorse |
-// | or promote products derived from this software without specific prior|
-// | written permission. |
-// | |
-// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
-// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
-// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
-// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
-// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
-// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
-// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
-// | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
-// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
-// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
-// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
-// | POSSIBILITY OF SUCH DAMAGE. |
-// +----------------------------------------------------------------------+
-// | Author: Lukas Smith <smith@pooteeweet.org> |
-// +----------------------------------------------------------------------+
-
-// $Id$
-
-/**
- * MDB2 OCI8 driver
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Driver_oci8 extends MDB2_Driver_Common
-{
- // {{{ properties
- var $escape_quotes = "'";
-
- var $uncommitedqueries = 0;
-
- // }}}
- // {{{ constructor
-
- /**
- * Constructor
- */
- function __construct()
- {
- parent::__construct();
-
- $this->phptype = 'oci8';
- $this->dbsyntax = 'oci8';
-
- $this->supported['sequences'] = true;
- $this->supported['indexes'] = true;
- $this->supported['summary_functions'] = true;
- $this->supported['order_by_text'] = true;
- $this->supported['current_id'] = true;
- $this->supported['affected_rows'] = true;
- $this->supported['transactions'] = true;
- $this->supported['limit_queries'] = 'emulated';
- $this->supported['LOBs'] = true;
- $this->supported['replace'] = 'emulated';
- $this->supported['sub_selects'] = true;
- $this->supported['auto_increment'] = false; // not implemented
- $this->supported['primary_key'] = false; // not implemented
-
- $this->options['DBA_username'] = false;
- $this->options['DBA_password'] = false;
- $this->options['database_name_prefix'] = false;
- $this->options['emulate_database'] = true;
- $this->options['default_tablespace'] = false;
- $this->options['default_text_field_length'] = 4000;
- }
-
- // }}}
- // {{{ errorInfo()
-
- /**
- * This method is used to collect information about an error
- *
- * @param integer $error
- * @return array
- * @access public
- */
- function errorInfo($error = null)
- {
- if (is_resource($error)) {
- $error_data = @OCIError($error);
- $error = null;
- } elseif ($this->connection) {
- $error_data = @OCIError($this->connection);
- } else {
- $error_data = @OCIError();
- }
- $native_code = $error_data['code'];
- $native_msg = $error_data['message'];
- if (is_null($error)) {
- static $ecode_map;
- if (empty($ecode_map)) {
- $ecode_map = array(
- 1 => MDB2_ERROR_CONSTRAINT,
- 900 => MDB2_ERROR_SYNTAX,
- 904 => MDB2_ERROR_NOSUCHFIELD,
- 913 => MDB2_ERROR_VALUE_COUNT_ON_ROW,
- 921 => MDB2_ERROR_SYNTAX,
- 923 => MDB2_ERROR_SYNTAX,
- 942 => MDB2_ERROR_NOSUCHTABLE,
- 955 => MDB2_ERROR_ALREADY_EXISTS,
- 1400 => MDB2_ERROR_CONSTRAINT_NOT_NULL,
- 1401 => MDB2_ERROR_INVALID,
- 1407 => MDB2_ERROR_CONSTRAINT_NOT_NULL,
- 1418 => MDB2_ERROR_NOT_FOUND,
- 1476 => MDB2_ERROR_DIVZERO,
- 1722 => MDB2_ERROR_INVALID_NUMBER,
- 2289 => MDB2_ERROR_NOSUCHTABLE,
- 2291 => MDB2_ERROR_CONSTRAINT,
- 2292 => MDB2_ERROR_CONSTRAINT,
- 2449 => MDB2_ERROR_CONSTRAINT,
- );
- }
- if (isset($ecode_map[$native_code])) {
- $error = $ecode_map[$native_code];
- }
- }
- return array($error, $native_code, $native_msg);
- }
-
- // }}}
- // {{{ beginTransaction()
-
- /**
- * Start a transaction.
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function beginTransaction()
- {
- $this->debug('starting transaction', 'beginTransaction');
- if ($this->in_transaction) {
- return MDB2_OK; //nothing to do
- }
- if (!$this->destructor_registered && $this->opened_persistent) {
- $this->destructor_registered = true;
- register_shutdown_function('MDB2_closeOpenTransactions');
- }
- $this->in_transaction = true;
- ++$this->uncommitedqueries;
- return MDB2_OK;
- }
-
- // }}}
- // {{{ commit()
-
- /**
- * Commit the database changes done during a transaction that is in
- * progress.
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function commit()
- {
- $this->debug('commit transaction', 'commit');
- if (!$this->in_transaction) {
- return $this->raiseError(MDB2_ERROR, null, null,
- 'commit: transaction changes are being auto committed');
- }
- if ($this->uncommitedqueries) {
- if (!@OCICommit($this->connection)) {
- return $this->raiseError();
- }
- $this->uncommitedqueries = 0;
- }
- $this->in_transaction = false;
- return MDB2_OK;
- }
-
- // }}}
- // {{{ rollback()
-
- /**
- * Cancel any database changes done during a transaction that is in
- * progress.
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function rollback()
- {
- $this->debug('rolling back transaction', 'rollback');
- if (!$this->in_transaction) {
- return $this->raiseError(MDB2_ERROR, null, null,
- 'rollback: transactions can not be rolled back when changes are auto committed');
- }
- if ($this->uncommitedqueries) {
- if (!@OCIRollback($this->connection)) {
- return $this->raiseError();
- }
- $this->uncommitedqueries = 0;
- }
- $this->in_transaction = false;
- return MDB2_OK;
- }
-
- // }}}
- // {{{ _doConnect()
-
- /**
- * do the grunt work of the connect
- *
- * @return connection on success or MDB2 Error Object on failure
- * @access protected
- */
- function _doConnect($username, $password, $persistent = false)
- {
- if (!PEAR::loadExtension($this->phptype)) {
- return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
- 'extension '.$this->phptype.' is not compiled into PHP');
- }
-
- if (isset($this->dsn['hostspec'])) {
- $sid = $this->dsn['hostspec'];
- } else {
- $sid = getenv('ORACLE_SID');
- }
- if (empty($sid)) {
- return $this->raiseError(MDB2_ERROR, null, null,
- 'it was not specified a valid Oracle Service Identifier (SID)');
- }
-
- if (function_exists('oci_connect')) {
- if (isset($this->dsn['new_link'])
- && ($this->dsn['new_link'] == 'true' || $this->dsn['new_link'] === true)
- ) {
- $connect_function = 'oci_new_connect';
- } else {
- $connect_function = $persistent ? 'oci_pconnect' : 'oci_connect';
- }
-
- $charset = empty($this->dsn['charset']) ? null : $this->dsn['charset'];
- $connection = @$connect_function($username, $password, $sid, $charset);
- $error = @OCIError();
- if (isset($error['code']) && $error['code'] == 12541) {
- // Couldn't find TNS listener. Try direct connection.
- $connection = @$connect_function($username, $password, null, $charset);
- }
- } else {
- $connect_function = $persistent ? 'OCIPLogon' : 'OCILogon';
- $connection = @$connect_function($username, $password, $sid);
- }
-
- if (!$connection) {
- return $this->raiseError(MDB2_ERROR_CONNECT_FAILED);
- }
-
- return $connection;
- }
-
- // }}}
- // {{{ connect()
-
- /**
- * Connect to the database
- *
- * @return MDB2_OK on success, MDB2 Error Object on failure
- * @access public
- */
- function connect()
- {
- if ($this->database_name && $this->options['emulate_database']) {
- $this->dsn['username'] = $this->options['database_name_prefix'].$this->database_name;
- }
- if (is_resource($this->connection)) {
- if (count(array_diff($this->connected_dsn, $this->dsn)) == 0
- && $this->opened_persistent == $this->options['persistent']
- ) {
- return MDB2_OK;
- }
- $this->disconnect(false);
- }
-
- $connection = $this->_doConnect(
- $this->dsn['username'],
- $this->dsn['password'],
- $this->options['persistent']
- );
- if (PEAR::isError($connection)) {
- return $connection;
- }
- $this->connection = $connection;
- $this->connected_dsn = $this->dsn;
- $this->opened_persistent = $this->options['persistent'];
- $this->dbsyntax = $this->dsn['dbsyntax'] ? $this->dsn['dbsyntax'] : $this->phptype;
-
- $query = "ALTER SESSION SET NLS_DATE_FORMAT='YYYY-MM-DD HH24:MI:SS'";
- $err = $this->_doQuery($query, true);
- if (PEAR::isError($err)) {
- $this->disconnect(false);
- return $err;
- }
-
- $query = "ALTER SESSION SET NLS_NUMERIC_CHARACTERS='. '";
- $err = $this->_doQuery($query, true);
- if (PEAR::isError($err)) {
- $this->disconnect(false);
- return $err;
- }
-
- return MDB2_OK;
- }
-
- // }}}
- // {{{ disconnect()
-
- /**
- * Log out and disconnect from the database.
- *
- * @return mixed true on success, false if not connected and error
- * object on error
- * @access public
- */
- function disconnect($force = true)
- {
- if (is_resource($this->connection)) {
- if (!$this->opened_persistent || $force) {
- if (function_exists('oci_close')) {
- @oci_close($this->connection);
- } else {
- @OCILogOff($this->connection);
- }
- }
- $this->connection = 0;
- $this->uncommitedqueries = 0;
- }
- return MDB2_OK;
- }
-
- // }}}
- // {{{ standaloneQuery()
-
- /**
- * execute a query as DBA
- *
- * @param string $query the SQL query
- * @param mixed $types array that contains the types of the columns in
- * the result set
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function &standaloneQuery($query, $types = null)
- {
- $connection = $this->_doConnect(
- $this->options['DBA_username'],
- $this->options['DBA_password'],
- $this->options['persistent']
- );
- if (PEAR::isError($connection)) {
- return $connection;
- }
-
- $isManip = MDB2::isManip($query);
- $offset = $this->row_offset;
- $limit = $this->row_limit;
- $this->row_offset = $this->row_limit = 0;
- $query = $this->_modifyQuery($query, $isManip, $limit, $offset);
-
- $result = $this->_doQuery($query, $isManip, $connection, false);
-
- @OCILogOff($connection);
- if (PEAR::isError($result)) {
- return $result;
- }
-
- if ($isManip) {
- return $result;
- }
- $return =& $this->_wrapResult($result, $types, true, false, $limit, $offset);
- return $return;
- }
-
- // }}}
- // {{{ _modifyQuery()
-
- /**
- * Changes a query string for various DBMS specific reasons
- *
- * @param string $query query to modify
- * @return the new (modified) query
- * @access protected
- */
- function _modifyQuery($query)
- {
- // "SELECT 2+2" must be "SELECT 2+2 FROM dual" in Oracle
- if (preg_match('/^\s*SELECT/i', $query)
- && !preg_match('/\sFROM\s/i', $query)
- ) {
- $query.= " FROM dual";
- }
- return $query;
- }
-
- // }}}
- // {{{ _doQuery()
-
- /**
- * Execute a query
- * @param string $query query
- * @param boolean $isManip if the query is a manipulation query
- * @param resource $connection
- * @param string $database_name
- * @return result or error object
- * @access protected
- */
- function _doQuery($query, $isManip = false, $connection = null, $database_name = null)
- {
- $this->last_query = $query;
- $this->debug($query, 'query');
- if ($this->getOption('disable_query')) {
- if ($isManip) {
- return 0;
- }
- return null;
- }
-
- if (is_null($connection)) {
- $err = $this->connect();
- if (PEAR::isError($err)) {
- return $err;
- }
- $connection = $this->connection;
- }
-
- $result = @OCIParse($connection, $query);
- if (!$result) {
- return $this->raiseError(MDB2_ERROR, null, null,
- 'Could not create statement');
- }
-
- $mode = $this->in_transaction ? OCI_DEFAULT : OCI_COMMIT_ON_SUCCESS;
- if (!@OCIExecute($result, $mode)) {
- return $this->raiseError($result);
- }
-
- if ($isManip) {
- return @OCIRowCount($result);
- }
-
- if (is_numeric($this->options['result_buffering'])) {
- @ocisetprefetch($result, $this->options['result_buffering']);
- }
- return $result;
- }
-
- // }}}
- // {{{ 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 :[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 $result_types array that contains the types of the columns in
- * the result set
- * @return mixed resource handle for the prepared query on success, a MDB2
- * error on failure
- * @access public
- * @see bindParam, execute
- */
- function &prepare($query, $types = null, $result_types = null)
- {
- $this->debug($query, 'prepare');
- $query = $this->_modifyQuery($query);
- $contains_lobs = false;
- if (is_array($types)) {
- $columns = $variables = '';
- foreach ($types as $parameter => $type) {
- if ($type == 'clob' || $type == 'blob') {
- $contains_lobs = true;
- $columns.= ($columns ? ', ' : ' RETURNING ').$parameter;
- $variables.= ($variables ? ', ' : ' INTO ').':'.$parameter;
- }
- }
- }
- $placeholder_type_guess = $placeholder_type = null;
- $question = '?';
- $colon = ':';
- $position = 0;
- $parameter = -1;
- while ($position < strlen($query)) {
- $q_position = strpos($query, $question, $position);
- $c_position = strpos($query, $colon, $position);
- if ($q_position && $c_position) {
- $p_position = min($q_position, $c_position);
- } elseif ($q_position) {
- $p_position = $q_position;
- } elseif ($c_position) {
- $p_position = $c_position;
- } else {
- break;
- }
- if (is_null($placeholder_type)) {
- $placeholder_type_guess = $query[$p_position];
- }
- 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;
- }
-}
-?> \ No newline at end of file
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 08:26:13 +0000