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authoralecpl <alec@alec.pl>2008-08-26 07:21:50 +0000
committeralecpl <alec@alec.pl>2008-08-26 07:21:50 +0000
commit9e8e5fa634ace418e6b34280133685485b97a9c0 (patch)
tree80ae14092bef204fe4689e83d72542af5d152d46 /program/lib/DB/oci8.php
parent6ed25604a9f3d4a57b12ad1364af1690f43ec282 (diff)
- Removed support for PEAR::DB driver
Diffstat (limited to 'program/lib/DB/oci8.php')
-rw-r--r--program/lib/DB/oci8.php1156
1 files changed, 0 insertions, 1156 deletions
diff --git a/program/lib/DB/oci8.php b/program/lib/DB/oci8.php
deleted file mode 100644
index f2f8e3d4c..000000000
--- a/program/lib/DB/oci8.php
+++ /dev/null
@@ -1,1156 +0,0 @@
-<?php
-
-/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
-
-/**
- * The PEAR DB driver for PHP's oci8 extension
- * for interacting with Oracle databases
- *
- * PHP versions 4 and 5
- *
- * LICENSE: This source file is subject to version 3.0 of the PHP license
- * that is available through the world-wide-web at the following URI:
- * http://www.php.net/license/3_0.txt. If you did not receive a copy of
- * the PHP License and are unable to obtain it through the web, please
- * send a note to license@php.net so we can mail you a copy immediately.
- *
- * @category Database
- * @package DB
- * @author James L. Pine <jlp@valinux.com>
- * @author Daniel Convissor <danielc@php.net>
- * @copyright 1997-2007 The PHP Group
- * @license http://www.php.net/license/3_0.txt PHP License 3.0
- * @version CVS: $Id$
- * @link http://pear.php.net/package/DB
- */
-
-/**
- * Obtain the DB_common class so it can be extended from
- */
-require_once 'DB/common.php';
-
-/**
- * The methods PEAR DB uses to interact with PHP's oci8 extension
- * for interacting with Oracle databases
- *
- * Definitely works with versions 8 and 9 of Oracle.
- *
- * These methods overload the ones declared in DB_common.
- *
- * Be aware... OCIError() only appears to return anything when given a
- * statement, so functions return the generic DB_ERROR instead of more
- * useful errors that have to do with feedback from the database.
- *
- * @category Database
- * @package DB
- * @author James L. Pine <jlp@valinux.com>
- * @author Daniel Convissor <danielc@php.net>
- * @copyright 1997-2007 The PHP Group
- * @license http://www.php.net/license/3_0.txt PHP License 3.0
- * @version Release: 1.7.13
- * @link http://pear.php.net/package/DB
- */
-class DB_oci8 extends DB_common
-{
- // {{{ properties
-
- /**
- * The DB driver type (mysql, oci8, odbc, etc.)
- * @var string
- */
- var $phptype = 'oci8';
-
- /**
- * The database syntax variant to be used (db2, access, etc.), if any
- * @var string
- */
- var $dbsyntax = 'oci8';
-
- /**
- * The capabilities of this DB implementation
- *
- * The 'new_link' element contains the PHP version that first provided
- * new_link support for this DBMS. Contains false if it's unsupported.
- *
- * Meaning of the 'limit' element:
- * + 'emulate' = emulate with fetch row by number
- * + 'alter' = alter the query
- * + false = skip rows
- *
- * @var array
- */
- var $features = array(
- 'limit' => 'alter',
- 'new_link' => '5.0.0',
- 'numrows' => 'subquery',
- 'pconnect' => true,
- 'prepare' => true,
- 'ssl' => false,
- 'transactions' => true,
- );
-
- /**
- * A mapping of native error codes to DB error codes
- * @var array
- */
- var $errorcode_map = array(
- 1 => DB_ERROR_CONSTRAINT,
- 900 => DB_ERROR_SYNTAX,
- 904 => DB_ERROR_NOSUCHFIELD,
- 913 => DB_ERROR_VALUE_COUNT_ON_ROW,
- 921 => DB_ERROR_SYNTAX,
- 923 => DB_ERROR_SYNTAX,
- 942 => DB_ERROR_NOSUCHTABLE,
- 955 => DB_ERROR_ALREADY_EXISTS,
- 1400 => DB_ERROR_CONSTRAINT_NOT_NULL,
- 1401 => DB_ERROR_INVALID,
- 1407 => DB_ERROR_CONSTRAINT_NOT_NULL,
- 1418 => DB_ERROR_NOT_FOUND,
- 1476 => DB_ERROR_DIVZERO,
- 1722 => DB_ERROR_INVALID_NUMBER,
- 2289 => DB_ERROR_NOSUCHTABLE,
- 2291 => DB_ERROR_CONSTRAINT,
- 2292 => DB_ERROR_CONSTRAINT,
- 2449 => DB_ERROR_CONSTRAINT,
- 12899 => DB_ERROR_INVALID,
- );
-
- /**
- * The raw database connection created by PHP
- * @var resource
- */
- var $connection;
-
- /**
- * The DSN information for connecting to a database
- * @var array
- */
- var $dsn = array();
-
-
- /**
- * Should data manipulation queries be committed automatically?
- * @var bool
- * @access private
- */
- var $autocommit = true;
-
- /**
- * Stores the $data passed to execute() in the oci8 driver
- *
- * Gets reset to array() when simpleQuery() is run.
- *
- * Needed in case user wants to call numRows() after prepare/execute
- * was used.
- *
- * @var array
- * @access private
- */
- var $_data = array();
-
- /**
- * The result or statement handle from the most recently executed query
- * @var resource
- */
- var $last_stmt;
-
- /**
- * Is the given prepared statement a data manipulation query?
- * @var array
- * @access private
- */
- var $manip_query = array();
-
- /**
- * Store of prepared SQL queries.
- * @var array
- * @access private
- */
- var $_prepared_queries = array();
-
-
- // }}}
- // {{{ constructor
-
- /**
- * This constructor calls <kbd>$this->DB_common()</kbd>
- *
- * @return void
- */
- function DB_oci8()
- {
- $this->DB_common();
- }
-
- // }}}
- // {{{ connect()
-
- /**
- * Connect to the database server, log in and open the database
- *
- * Don't call this method directly. Use DB::connect() instead.
- *
- * If PHP is at version 5.0.0 or greater:
- * + Generally, oci_connect() or oci_pconnect() are used.
- * + But if the new_link DSN option is set to true, oci_new_connect()
- * is used.
- *
- * When using PHP version 4.x, OCILogon() or OCIPLogon() are used.
- *
- * PEAR DB's oci8 driver supports the following extra DSN options:
- * + charset The character set to be used on the connection.
- * Only used if PHP is at version 5.0.0 or greater
- * and the Oracle server is at 9.2 or greater.
- * Available since PEAR DB 1.7.0.
- * + new_link If set to true, causes subsequent calls to
- * connect() to return a new connection link
- * instead of the existing one. WARNING: this is
- * not portable to other DBMS's.
- * Available since PEAR DB 1.7.0.
- *
- * @param array $dsn the data source name
- * @param bool $persistent should the connection be persistent?
- *
- * @return int DB_OK on success. A DB_Error object on failure.
- */
- function connect($dsn, $persistent = false)
- {
- if (!PEAR::loadExtension('oci8')) {
- return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
- }
-
- $this->dsn = $dsn;
- if ($dsn['dbsyntax']) {
- $this->dbsyntax = $dsn['dbsyntax'];
- }
-
- // Backwards compatibility with DB < 1.7.0
- if (empty($dsn['database']) && !empty($dsn['hostspec'])) {
- $db = $dsn['hostspec'];
- } else {
- $db = $dsn['database'];
- }
-
- if (function_exists('oci_connect')) {
- if (isset($dsn['new_link'])
- && ($dsn['new_link'] == 'true' || $dsn['new_link'] === true))
- {
- $connect_function = 'oci_new_connect';
- } else {
- $connect_function = $persistent ? 'oci_pconnect'
- : 'oci_connect';
- }
- if (isset($this->dsn['port']) && $this->dsn['port']) {
- $db = '//'.$db.':'.$this->dsn['port'];
- }
-
- $char = empty($dsn['charset']) ? null : $dsn['charset'];
- $this->connection = @$connect_function($dsn['username'],
- $dsn['password'],
- $db,
- $char);
- $error = OCIError();
- if (!empty($error) && $error['code'] == 12541) {
- // Couldn't find TNS listener. Try direct connection.
- $this->connection = @$connect_function($dsn['username'],
- $dsn['password'],
- null,
- $char);
- }
- } else {
- $connect_function = $persistent ? 'OCIPLogon' : 'OCILogon';
- if ($db) {
- $this->connection = @$connect_function($dsn['username'],
- $dsn['password'],
- $db);
- } elseif ($dsn['username'] || $dsn['password']) {
- $this->connection = @$connect_function($dsn['username'],
- $dsn['password']);
- }
- }
-
- if (!$this->connection) {
- $error = OCIError();
- $error = (is_array($error)) ? $error['message'] : null;
- return $this->raiseError(DB_ERROR_CONNECT_FAILED,
- null, null, null,
- $error);
- }
- return DB_OK;
- }
-
- // }}}
- // {{{ disconnect()
-
- /**
- * Disconnects from the database server
- *
- * @return bool TRUE on success, FALSE on failure
- */
- function disconnect()
- {
- if (function_exists('oci_close')) {
- $ret = @oci_close($this->connection);
- } else {
- $ret = @OCILogOff($this->connection);
- }
- $this->connection = null;
- return $ret;
- }
-
- // }}}
- // {{{ simpleQuery()
-
- /**
- * Sends a query to the database server
- *
- * To determine how many rows of a result set get buffered using
- * ocisetprefetch(), see the "result_buffering" option in setOptions().
- * This option was added in Release 1.7.0.
- *
- * @param string the SQL query string
- *
- * @return mixed + a PHP result resrouce for successful SELECT queries
- * + the DB_OK constant for other successful queries
- * + a DB_Error object on failure
- */
- function simpleQuery($query)
- {
- $this->_data = array();
- $this->last_parameters = array();
- $this->last_query = $query;
- $query = $this->modifyQuery($query);
- $result = @OCIParse($this->connection, $query);
- if (!$result) {
- return $this->oci8RaiseError();
- }
- if ($this->autocommit) {
- $success = @OCIExecute($result,OCI_COMMIT_ON_SUCCESS);
- } else {
- $success = @OCIExecute($result,OCI_DEFAULT);
- }
- if (!$success) {
- return $this->oci8RaiseError($result);
- }
- $this->last_stmt = $result;
- if ($this->_checkManip($query)) {
- return DB_OK;
- } else {
- @ocisetprefetch($result, $this->options['result_buffering']);
- return $result;
- }
- }
-
- // }}}
- // {{{ nextResult()
-
- /**
- * Move the internal oracle result pointer to the next available result
- *
- * @param a valid oci8 result resource
- *
- * @access public
- *
- * @return true if a result is available otherwise return false
- */
- function nextResult($result)
- {
- return false;
- }
-
- // }}}
- // {{{ fetchInto()
-
- /**
- * Places a row from the result set into the given array
- *
- * Formating of the array and the data therein are configurable.
- * See DB_result::fetchInto() for more information.
- *
- * This method is not meant to be called directly. Use
- * DB_result::fetchInto() instead. It can't be declared "protected"
- * because DB_result is a separate object.
- *
- * @param resource $result the query result resource
- * @param array $arr the referenced array to put the data in
- * @param int $fetchmode how the resulting array should be indexed
- * @param int $rownum the row number to fetch (0 = first row)
- *
- * @return mixed DB_OK on success, NULL when the end of a result set is
- * reached or on failure
- *
- * @see DB_result::fetchInto()
- */
- function fetchInto($result, &$arr, $fetchmode, $rownum = null)
- {
- if ($rownum !== null) {
- return $this->raiseError(DB_ERROR_NOT_CAPABLE);
- }
- if ($fetchmode & DB_FETCHMODE_ASSOC) {
- $moredata = @OCIFetchInto($result,$arr,OCI_ASSOC+OCI_RETURN_NULLS+OCI_RETURN_LOBS);
- if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE &&
- $moredata)
- {
- $arr = array_change_key_case($arr, CASE_LOWER);
- }
- } else {
- $moredata = OCIFetchInto($result,$arr,OCI_RETURN_NULLS+OCI_RETURN_LOBS);
- }
- if (!$moredata) {
- return null;
- }
- if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
- $this->_rtrimArrayValues($arr);
- }
- if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
- $this->_convertNullArrayValuesToEmpty($arr);
- }
- return DB_OK;
- }
-
- // }}}
- // {{{ freeResult()
-
- /**
- * Deletes the result set and frees the memory occupied by the result set
- *
- * This method is not meant to be called directly. Use
- * DB_result::free() instead. It can't be declared "protected"
- * because DB_result is a separate object.
- *
- * @param resource $result PHP's query result resource
- *
- * @return bool TRUE on success, FALSE if $result is invalid
- *
- * @see DB_result::free()
- */
- function freeResult($result)
- {
- return is_resource($result) ? OCIFreeStatement($result) : false;
- }
-
- /**
- * Frees the internal resources associated with a prepared query
- *
- * @param resource $stmt the prepared statement's resource
- * @param bool $free_resource should the PHP resource be freed too?
- * Use false if you need to get data
- * from the result set later.
- *
- * @return bool TRUE on success, FALSE if $result is invalid
- *
- * @see DB_oci8::prepare()
- */
- function freePrepared($stmt, $free_resource = true)
- {
- if (!is_resource($stmt)) {
- return false;
- }
- if ($free_resource) {
- @ocifreestatement($stmt);
- }
- if (isset($this->prepare_types[(int)$stmt])) {
- unset($this->prepare_types[(int)$stmt]);
- unset($this->manip_query[(int)$stmt]);
- } else {
- return false;
- }
- return true;
- }
-
- // }}}
- // {{{ numRows()
-
- /**
- * Gets the number of rows in a result set
- *
- * Only works if the DB_PORTABILITY_NUMROWS portability option
- * is turned on.
- *
- * This method is not meant to be called directly. Use
- * DB_result::numRows() instead. It can't be declared "protected"
- * because DB_result is a separate object.
- *
- * @param resource $result PHP's query result resource
- *
- * @return int the number of rows. A DB_Error object on failure.
- *
- * @see DB_result::numRows(), DB_common::setOption()
- */
- function numRows($result)
- {
- // emulate numRows for Oracle. yuck.
- if ($this->options['portability'] & DB_PORTABILITY_NUMROWS &&
- $result === $this->last_stmt)
- {
- $countquery = 'SELECT COUNT(*) FROM ('.$this->last_query.')';
- $save_query = $this->last_query;
- $save_stmt = $this->last_stmt;
-
- $count = $this->query($countquery);
-
- // Restore the last query and statement.
- $this->last_query = $save_query;
- $this->last_stmt = $save_stmt;
-
- if (DB::isError($count) ||
- DB::isError($row = $count->fetchRow(DB_FETCHMODE_ORDERED)))
- {
- return $this->raiseError(DB_ERROR_NOT_CAPABLE);
- }
-
- return $row[0];
- }
- return $this->raiseError(DB_ERROR_NOT_CAPABLE);
- }
-
- // }}}
- // {{{ numCols()
-
- /**
- * Gets the number of columns in a result set
- *
- * This method is not meant to be called directly. Use
- * DB_result::numCols() instead. It can't be declared "protected"
- * because DB_result is a separate object.
- *
- * @param resource $result PHP's query result resource
- *
- * @return int the number of columns. A DB_Error object on failure.
- *
- * @see DB_result::numCols()
- */
- function numCols($result)
- {
- $cols = @OCINumCols($result);
- if (!$cols) {
- return $this->oci8RaiseError($result);
- }
- return $cols;
- }
-
- // }}}
- // {{{ prepare()
-
- /**
- * Prepares a query for multiple execution with execute().
- *
- * With oci8, this is emulated.
- *
- * prepare() requires a generic query as string like <code>
- * INSERT INTO numbers VALUES (?, ?, ?)
- * </code>. The <kbd>?</kbd> characters are placeholders.
- *
- * Three types of placeholders can be used:
- * + <kbd>?</kbd> a quoted scalar value, i.e. strings, integers
- * + <kbd>!</kbd> value is inserted 'as is'
- * + <kbd>&</kbd> requires a file name. The file's contents get
- * inserted into the query (i.e. saving binary
- * data in a db)
- *
- * Use backslashes to escape placeholder characters if you don't want
- * them to be interpreted as placeholders. Example: <code>
- * "UPDATE foo SET col=? WHERE col='over \& under'"
- * </code>
- *
- * @param string $query the query to be prepared
- *
- * @return mixed DB statement resource on success. DB_Error on failure.
- *
- * @see DB_oci8::execute()
- */
- function prepare($query)
- {
- $tokens = preg_split('/((?<!\\\)[&?!])/', $query, -1,
- PREG_SPLIT_DELIM_CAPTURE);
- $binds = count($tokens) - 1;
- $token = 0;
- $types = array();
- $newquery = '';
-
- foreach ($tokens as $key => $val) {
- switch ($val) {
- case '?':
- $types[$token++] = DB_PARAM_SCALAR;
- unset($tokens[$key]);
- break;
- case '&':
- $types[$token++] = DB_PARAM_OPAQUE;
- unset($tokens[$key]);
- break;
- case '!':
- $types[$token++] = DB_PARAM_MISC;
- unset($tokens[$key]);
- break;
- default:
- $tokens[$key] = preg_replace('/\\\([&?!])/', "\\1", $val);
- if ($key != $binds) {
- $newquery .= $tokens[$key] . ':bind' . $token;
- } else {
- $newquery .= $tokens[$key];
- }
- }
- }
-
- $this->last_query = $query;
- $newquery = $this->modifyQuery($newquery);
- if (!$stmt = @OCIParse($this->connection, $newquery)) {
- return $this->oci8RaiseError();
- }
- $this->prepare_types[(int)$stmt] = $types;
- $this->manip_query[(int)$stmt] = DB::isManip($query);
- $this->_prepared_queries[(int)$stmt] = $newquery;
- return $stmt;
- }
-
- // }}}
- // {{{ execute()
-
- /**
- * Executes a DB statement prepared with prepare().
- *
- * To determine how many rows of a result set get buffered using
- * ocisetprefetch(), see the "result_buffering" option in setOptions().
- * This option was added in Release 1.7.0.
- *
- * @param resource $stmt a DB statement resource returned from prepare()
- * @param mixed $data array, string or numeric data to be used in
- * execution of the statement. Quantity of items
- * passed must match quantity of placeholders in
- * query: meaning 1 for non-array items or the
- * quantity of elements in the array.
- *
- * @return mixed returns an oic8 result resource for successful SELECT
- * queries, DB_OK for other successful queries.
- * A DB error object is returned on failure.
- *
- * @see DB_oci8::prepare()
- */
- function &execute($stmt, $data = array())
- {
- $data = (array)$data;
- $this->last_parameters = $data;
- $this->last_query = $this->_prepared_queries[(int)$stmt];
- $this->_data = $data;
-
- $types = $this->prepare_types[(int)$stmt];
- if (count($types) != count($data)) {
- $tmp = $this->raiseError(DB_ERROR_MISMATCH);
- return $tmp;
- }
-
- $i = 0;
- foreach ($data as $key => $value) {
- if ($types[$i] == DB_PARAM_MISC) {
- /*
- * Oracle doesn't seem to have the ability to pass a
- * parameter along unchanged, so strip off quotes from start
- * and end, plus turn two single quotes to one single quote,
- * in order to avoid the quotes getting escaped by
- * Oracle and ending up in the database.
- */
- $data[$key] = preg_replace("/^'(.*)'$/", "\\1", $data[$key]);
- $data[$key] = str_replace("''", "'", $data[$key]);
- } elseif ($types[$i] == DB_PARAM_OPAQUE) {
- $fp = @fopen($data[$key], 'rb');
- if (!$fp) {
- $tmp = $this->raiseError(DB_ERROR_ACCESS_VIOLATION);
- return $tmp;
- }
- $data[$key] = fread($fp, filesize($data[$key]));
- fclose($fp);
- } elseif ($types[$i] == DB_PARAM_SCALAR) {
- // Floats have to be converted to a locale-neutral
- // representation.
- if (is_float($data[$key])) {
- $data[$key] = $this->quoteFloat($data[$key]);
- }
- }
- if (!@OCIBindByName($stmt, ':bind' . $i, $data[$key], -1)) {
- $tmp = $this->oci8RaiseError($stmt);
- return $tmp;
- }
- $this->last_query = str_replace(':bind'.$i, $this->quoteSmart($data[$key]), $this->last_query);
- $i++;
- }
- if ($this->autocommit) {
- $success = @OCIExecute($stmt, OCI_COMMIT_ON_SUCCESS);
- } else {
- $success = @OCIExecute($stmt, OCI_DEFAULT);
- }
- if (!$success) {
- $tmp = $this->oci8RaiseError($stmt);
- return $tmp;
- }
- $this->last_stmt = $stmt;
- if ($this->manip_query[(int)$stmt] || $this->_next_query_manip) {
- $this->_last_query_manip = true;
- $this->_next_query_manip = false;
- $tmp = DB_OK;
- } else {
- $this->_last_query_manip = false;
- @ocisetprefetch($stmt, $this->options['result_buffering']);
- $tmp = new DB_result($this, $stmt);
- }
- return $tmp;
- }
-
- // }}}
- // {{{ autoCommit()
-
- /**
- * Enables or disables automatic commits
- *
- * @param bool $onoff true turns it on, false turns it off
- *
- * @return int DB_OK on success. A DB_Error object if the driver
- * doesn't support auto-committing transactions.
- */
- function autoCommit($onoff = false)
- {
- $this->autocommit = (bool)$onoff;;
- return DB_OK;
- }
-
- // }}}
- // {{{ commit()
-
- /**
- * Commits the current transaction
- *
- * @return int DB_OK on success. A DB_Error object on failure.
- */
- function commit()
- {
- $result = @OCICommit($this->connection);
- if (!$result) {
- return $this->oci8RaiseError();
- }
- return DB_OK;
- }
-
- // }}}
- // {{{ rollback()
-
- /**
- * Reverts the current transaction
- *
- * @return int DB_OK on success. A DB_Error object on failure.
- */
- function rollback()
- {
- $result = @OCIRollback($this->connection);
- if (!$result) {
- return $this->oci8RaiseError();
- }
- return DB_OK;
- }
-
- // }}}
- // {{{ affectedRows()
-
- /**
- * Determines the number of rows affected by a data maniuplation query
- *
- * 0 is returned for queries that don't manipulate data.
- *
- * @return int the number of rows. A DB_Error object on failure.
- */
- function affectedRows()
- {
- if ($this->last_stmt === false) {
- return $this->oci8RaiseError();
- }
- $result = @OCIRowCount($this->last_stmt);
- if ($result === false) {
- return $this->oci8RaiseError($this->last_stmt);
- }
- return $result;
- }
-
- // }}}
- // {{{ modifyQuery()
-
- /**
- * Changes a query string for various DBMS specific reasons
- *
- * "SELECT 2+2" must be "SELECT 2+2 FROM dual" in Oracle.
- *
- * @param string $query the query string to modify
- *
- * @return string the modified query string
- *
- * @access protected
- */
- function modifyQuery($query)
- {
- if (preg_match('/^\s*SELECT/i', $query) &&
- !preg_match('/\sFROM\s/i', $query)) {
- $query .= ' FROM dual';
- }
- return $query;
- }
-
- // }}}
- // {{{ modifyLimitQuery()
-
- /**
- * Adds LIMIT clauses to a query string according to current DBMS standards
- *
- * @param string $query the query to modify
- * @param int $from the row to start to fetching (0 = the first row)
- * @param int $count the numbers of rows to fetch
- * @param mixed $params array, string or numeric data to be used in
- * execution of the statement. Quantity of items
- * passed must match quantity of placeholders in
- * query: meaning 1 placeholder for non-array
- * parameters or 1 placeholder per array element.
- *
- * @return string the query string with LIMIT clauses added
- *
- * @access protected
- */
- function modifyLimitQuery($query, $from, $count, $params = array())
- {
- // Let Oracle return the name of the columns instead of
- // coding a "home" SQL parser
-
- if (count($params)) {
- $result = $this->prepare("SELECT * FROM ($query) "
- . 'WHERE NULL = NULL');
- $tmp = $this->execute($result, $params);
- } else {
- $q_fields = "SELECT * FROM ($query) WHERE NULL = NULL";
-
- if (!$result = @OCIParse($this->connection, $q_fields)) {
- $this->last_query = $q_fields;
- return $this->oci8RaiseError();
- }
- if (!@OCIExecute($result, OCI_DEFAULT)) {
- $this->last_query = $q_fields;
- return $this->oci8RaiseError($result);
- }
- }
-
- $ncols = OCINumCols($result);
- $cols = array();
- for ( $i = 1; $i <= $ncols; $i++ ) {
- $cols[] = '"' . OCIColumnName($result, $i) . '"';
- }
- $fields = implode(', ', $cols);
- // XXX Test that (tip by John Lim)
- //if (preg_match('/^\s*SELECT\s+/is', $query, $match)) {
- // // Introduce the FIRST_ROWS Oracle query optimizer
- // $query = substr($query, strlen($match[0]), strlen($query));
- // $query = "SELECT /* +FIRST_ROWS */ " . $query;
- //}
-
- // Construct the query
- // more at: http://marc.theaimsgroup.com/?l=php-db&m=99831958101212&w=2
- // Perhaps this could be optimized with the use of Unions
- $query = "SELECT $fields FROM".
- " (SELECT rownum as linenum, $fields FROM".
- " ($query)".
- ' WHERE rownum <= '. ($from + $count) .
- ') WHERE linenum >= ' . ++$from;
- return $query;
- }
-
- // }}}
- // {{{ nextId()
-
- /**
- * Returns the next free id in a sequence
- *
- * @param string $seq_name name of the sequence
- * @param boolean $ondemand when true, the seqence is automatically
- * created if it does not exist
- *
- * @return int the next id number in the sequence.
- * A DB_Error object on failure.
- *
- * @see DB_common::nextID(), DB_common::getSequenceName(),
- * DB_oci8::createSequence(), DB_oci8::dropSequence()
- */
- function nextId($seq_name, $ondemand = true)
- {
- $seqname = $this->getSequenceName($seq_name);
- $repeat = 0;
- do {
- $this->expectError(DB_ERROR_NOSUCHTABLE);
- $result = $this->query("SELECT ${seqname}.nextval FROM dual");
- $this->popExpect();
- if ($ondemand && DB::isError($result) &&
- $result->getCode() == DB_ERROR_NOSUCHTABLE) {
- $repeat = 1;
- $result = $this->createSequence($seq_name);
- if (DB::isError($result)) {
- return $this->raiseError($result);
- }
- } else {
- $repeat = 0;
- }
- } while ($repeat);
- if (DB::isError($result)) {
- return $this->raiseError($result);
- }
- $arr = $result->fetchRow(DB_FETCHMODE_ORDERED);
- return $arr[0];
- }
-
- /**
- * Creates a new sequence
- *
- * @param string $seq_name name of the new sequence
- *
- * @return int DB_OK on success. A DB_Error object on failure.
- *
- * @see DB_common::createSequence(), DB_common::getSequenceName(),
- * DB_oci8::nextID(), DB_oci8::dropSequence()
- */
- function createSequence($seq_name)
- {
- return $this->query('CREATE SEQUENCE '
- . $this->getSequenceName($seq_name));
- }
-
- // }}}
- // {{{ dropSequence()
-
- /**
- * Deletes a sequence
- *
- * @param string $seq_name name of the sequence to be deleted
- *
- * @return int DB_OK on success. A DB_Error object on failure.
- *
- * @see DB_common::dropSequence(), DB_common::getSequenceName(),
- * DB_oci8::nextID(), DB_oci8::createSequence()
- */
- function dropSequence($seq_name)
- {
- return $this->query('DROP SEQUENCE '
- . $this->getSequenceName($seq_name));
- }
-
- // }}}
- // {{{ oci8RaiseError()
-
- /**
- * Produces a DB_Error object regarding the current problem
- *
- * @param int $errno if the error is being manually raised pass a
- * DB_ERROR* constant here. If this isn't passed
- * the error information gathered from the DBMS.
- *
- * @return object the DB_Error object
- *
- * @see DB_common::raiseError(),
- * DB_oci8::errorNative(), DB_oci8::errorCode()
- */
- function oci8RaiseError($errno = null)
- {
- if ($errno === null) {
- $error = @OCIError($this->connection);
- return $this->raiseError($this->errorCode($error['code']),
- null, null, null, $error['message']);
- } elseif (is_resource($errno)) {
- $error = @OCIError($errno);
- return $this->raiseError($this->errorCode($error['code']),
- null, null, null, $error['message']);
- }
- return $this->raiseError($this->errorCode($errno));
- }
-
- // }}}
- // {{{ errorNative()
-
- /**
- * Gets the DBMS' native error code produced by the last query
- *
- * @return int the DBMS' error code. FALSE if the code could not be
- * determined
- */
- function errorNative()
- {
- if (is_resource($this->last_stmt)) {
- $error = @OCIError($this->last_stmt);
- } else {
- $error = @OCIError($this->connection);
- }
- if (is_array($error)) {
- return $error['code'];
- }
- return false;
- }
-
- // }}}
- // {{{ tableInfo()
-
- /**
- * Returns information about a table or a result set
- *
- * NOTE: only supports 'table' and 'flags' if <var>$result</var>
- * is a table name.
- *
- * NOTE: flags won't contain index information.
- *
- * @param object|string $result DB_result object from a query or a
- * string containing the name of a table.
- * While this also accepts a query result
- * resource identifier, this behavior is
- * deprecated.
- * @param int $mode a valid tableInfo mode
- *
- * @return array an associative array with the information requested.
- * A DB_Error object on failure.
- *
- * @see DB_common::tableInfo()
- */
- function tableInfo($result, $mode = null)
- {
- if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
- $case_func = 'strtolower';
- } else {
- $case_func = 'strval';
- }
-
- $res = array();
-
- if (is_string($result)) {
- /*
- * Probably received a table name.
- * Create a result resource identifier.
- */
- $result = strtoupper($result);
- $q_fields = 'SELECT column_name, data_type, data_length, '
- . 'nullable '
- . 'FROM user_tab_columns '
- . "WHERE table_name='$result' ORDER BY column_id";
-
- $this->last_query = $q_fields;
-
- if (!$stmt = @OCIParse($this->connection, $q_fields)) {
- return $this->oci8RaiseError(DB_ERROR_NEED_MORE_DATA);
- }
- if (!@OCIExecute($stmt, OCI_DEFAULT)) {
- return $this->oci8RaiseError($stmt);
- }
-
- $i = 0;
- while (@OCIFetch($stmt)) {
- $res[$i] = array(
- 'table' => $case_func($result),
- 'name' => $case_func(@OCIResult($stmt, 1)),
- 'type' => @OCIResult($stmt, 2),
- 'len' => @OCIResult($stmt, 3),
- 'flags' => (@OCIResult($stmt, 4) == 'N') ? 'not_null' : '',
- );
- if ($mode & DB_TABLEINFO_ORDER) {
- $res['order'][$res[$i]['name']] = $i;
- }
- if ($mode & DB_TABLEINFO_ORDERTABLE) {
- $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
- }
- $i++;
- }
-
- if ($mode) {
- $res['num_fields'] = $i;
- }
- @OCIFreeStatement($stmt);
-
- } else {
- if (isset($result->result)) {
- /*
- * Probably received a result object.
- * Extract the result resource identifier.
- */
- $result = $result->result;
- }
-
- $res = array();
-
- if ($result === $this->last_stmt) {
- $count = @OCINumCols($result);
- if ($mode) {
- $res['num_fields'] = $count;
- }
- for ($i = 0; $i < $count; $i++) {
- $res[$i] = array(
- 'table' => '',
- 'name' => $case_func(@OCIColumnName($result, $i+1)),
- 'type' => @OCIColumnType($result, $i+1),
- 'len' => @OCIColumnSize($result, $i+1),
- 'flags' => '',
- );
- if ($mode & DB_TABLEINFO_ORDER) {
- $res['order'][$res[$i]['name']] = $i;
- }
- if ($mode & DB_TABLEINFO_ORDERTABLE) {
- $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
- }
- }
- } else {
- return $this->raiseError(DB_ERROR_NOT_CAPABLE);
- }
- }
- return $res;
- }
-
- // }}}
- // {{{ getSpecialQuery()
-
- /**
- * Obtains the query string needed for listing a given type of objects
- *
- * @param string $type the kind of objects you want to retrieve
- *
- * @return string the SQL query string or null if the driver doesn't
- * support the object type requested
- *
- * @access protected
- * @see DB_common::getListOf()
- */
- function getSpecialQuery($type)
- {
- switch ($type) {
- case 'tables':
- return 'SELECT table_name FROM user_tables';
- case 'synonyms':
- return 'SELECT synonym_name FROM user_synonyms';
- case 'views':
- return 'SELECT view_name FROM user_views';
- default:
- return null;
- }
- }
-
- // }}}
- // {{{ quoteFloat()
-
- /**
- * Formats a float value for use within a query in a locale-independent
- * manner.
- *
- * @param float the float value to be quoted.
- * @return string the quoted string.
- * @see DB_common::quoteSmart()
- * @since Method available since release 1.7.8.
- */
- function quoteFloat($float) {
- return $this->escapeSimple(str_replace(',', '.', strval(floatval($float))));
- }
-
- // }}}
-
-}
-
-/*
- * Local variables:
- * tab-width: 4
- * c-basic-offset: 4
- * End:
- */
-
-?>