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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 2024-11-12 17:19:55 +0000