+++ /dev/null
-<?php
-// vim: set et ts=4 sw=4 fdm=marker:
-// +----------------------------------------------------------------------+
-// | PHP versions 4 and 5 |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1998-2007 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.php,v 1.335 2008/11/29 14:57:01 afz Exp $
-//
-
-/**
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
-
-oc_require_once('PEAR.php');
-
-// {{{ Error constants
-
-/**
- * The method mapErrorCode in each MDB2_dbtype implementation maps
- * native error codes to one of these.
- *
- * If you add an error code here, make sure you also add a textual
- * version of it in MDB2::errorMessage().
- */
-
-define('MDB2_OK', true);
-define('MDB2_ERROR', -1);
-define('MDB2_ERROR_SYNTAX', -2);
-define('MDB2_ERROR_CONSTRAINT', -3);
-define('MDB2_ERROR_NOT_FOUND', -4);
-define('MDB2_ERROR_ALREADY_EXISTS', -5);
-define('MDB2_ERROR_UNSUPPORTED', -6);
-define('MDB2_ERROR_MISMATCH', -7);
-define('MDB2_ERROR_INVALID', -8);
-define('MDB2_ERROR_NOT_CAPABLE', -9);
-define('MDB2_ERROR_TRUNCATED', -10);
-define('MDB2_ERROR_INVALID_NUMBER', -11);
-define('MDB2_ERROR_INVALID_DATE', -12);
-define('MDB2_ERROR_DIVZERO', -13);
-define('MDB2_ERROR_NODBSELECTED', -14);
-define('MDB2_ERROR_CANNOT_CREATE', -15);
-define('MDB2_ERROR_CANNOT_DELETE', -16);
-define('MDB2_ERROR_CANNOT_DROP', -17);
-define('MDB2_ERROR_NOSUCHTABLE', -18);
-define('MDB2_ERROR_NOSUCHFIELD', -19);
-define('MDB2_ERROR_NEED_MORE_DATA', -20);
-define('MDB2_ERROR_NOT_LOCKED', -21);
-define('MDB2_ERROR_VALUE_COUNT_ON_ROW', -22);
-define('MDB2_ERROR_INVALID_DSN', -23);
-define('MDB2_ERROR_CONNECT_FAILED', -24);
-define('MDB2_ERROR_EXTENSION_NOT_FOUND',-25);
-define('MDB2_ERROR_NOSUCHDB', -26);
-define('MDB2_ERROR_ACCESS_VIOLATION', -27);
-define('MDB2_ERROR_CANNOT_REPLACE', -28);
-define('MDB2_ERROR_CONSTRAINT_NOT_NULL',-29);
-define('MDB2_ERROR_DEADLOCK', -30);
-define('MDB2_ERROR_CANNOT_ALTER', -31);
-define('MDB2_ERROR_MANAGER', -32);
-define('MDB2_ERROR_MANAGER_PARSE', -33);
-define('MDB2_ERROR_LOADMODULE', -34);
-define('MDB2_ERROR_INSUFFICIENT_DATA', -35);
-define('MDB2_ERROR_NO_PERMISSION', -36);
-define('MDB2_ERROR_DISCONNECT_FAILED', -37);
-
-// }}}
-// {{{ Verbose constants
-/**
- * These are just helper constants to more verbosely express parameters to prepare()
- */
-
-define('MDB2_PREPARE_MANIP', false);
-define('MDB2_PREPARE_RESULT', null);
-
-// }}}
-// {{{ Fetchmode constants
-
-/**
- * This is a special constant that tells MDB2 the user hasn't specified
- * any particular get mode, so the default should be used.
- */
-define('MDB2_FETCHMODE_DEFAULT', 0);
-
-/**
- * Column data indexed by numbers, ordered from 0 and up
- */
-define('MDB2_FETCHMODE_ORDERED', 1);
-
-/**
- * Column data indexed by column names
- */
-define('MDB2_FETCHMODE_ASSOC', 2);
-
-/**
- * Column data as object properties
- */
-define('MDB2_FETCHMODE_OBJECT', 3);
-
-/**
- * For multi-dimensional results: normally the first level of arrays
- * is the row number, and the second level indexed by column number or name.
- * MDB2_FETCHMODE_FLIPPED switches this order, so the first level of arrays
- * is the column name, and the second level the row number.
- */
-define('MDB2_FETCHMODE_FLIPPED', 4);
-
-// }}}
-// {{{ Portability mode constants
-
-/**
- * Portability: turn off all portability features.
- * @see MDB2_Driver_Common::setOption()
- */
-define('MDB2_PORTABILITY_NONE', 0);
-
-/**
- * Portability: convert names of tables and fields to case defined in the
- * "field_case" option when using the query*(), fetch*() and tableInfo() methods.
- * @see MDB2_Driver_Common::setOption()
- */
-define('MDB2_PORTABILITY_FIX_CASE', 1);
-
-/**
- * Portability: right trim the data output by query*() and fetch*().
- * @see MDB2_Driver_Common::setOption()
- */
-define('MDB2_PORTABILITY_RTRIM', 2);
-
-/**
- * Portability: force reporting the number of rows deleted.
- * @see MDB2_Driver_Common::setOption()
- */
-define('MDB2_PORTABILITY_DELETE_COUNT', 4);
-
-/**
- * Portability: not needed in MDB2 (just left here for compatibility to DB)
- * @see MDB2_Driver_Common::setOption()
- */
-define('MDB2_PORTABILITY_NUMROWS', 8);
-
-/**
- * Portability: makes certain error messages in certain drivers compatible
- * with those from other DBMS's.
- *
- * + mysql, mysqli: change unique/primary key constraints
- * MDB2_ERROR_ALREADY_EXISTS -> MDB2_ERROR_CONSTRAINT
- *
- * + odbc(access): MS's ODBC driver reports 'no such field' as code
- * 07001, which means 'too few parameters.' When this option is on
- * that code gets mapped to MDB2_ERROR_NOSUCHFIELD.
- *
- * @see MDB2_Driver_Common::setOption()
- */
-define('MDB2_PORTABILITY_ERRORS', 16);
-
-/**
- * Portability: convert empty values to null strings in data output by
- * query*() and fetch*().
- * @see MDB2_Driver_Common::setOption()
- */
-define('MDB2_PORTABILITY_EMPTY_TO_NULL', 32);
-
-/**
- * Portability: removes database/table qualifiers from associative indexes
- * @see MDB2_Driver_Common::setOption()
- */
-define('MDB2_PORTABILITY_FIX_ASSOC_FIELD_NAMES', 64);
-
-/**
- * Portability: turn on all portability features.
- * @see MDB2_Driver_Common::setOption()
- */
-define('MDB2_PORTABILITY_ALL', 127);
-
-// }}}
-// {{{ Globals for class instance tracking
-
-/**
- * These are global variables that are used to track the various class instances
- */
-
-$GLOBALS['_MDB2_databases'] = array();
-$GLOBALS['_MDB2_dsninfo_default'] = array(
- 'phptype' => false,
- 'dbsyntax' => false,
- 'username' => false,
- 'password' => false,
- 'protocol' => false,
- 'hostspec' => false,
- 'port' => false,
- 'socket' => false,
- 'database' => false,
- 'mode' => false,
-);
-
-// }}}
-// {{{ class MDB2
-
-/**
- * The main 'MDB2' class is simply a container class with some static
- * methods for creating DB objects as well as some utility functions
- * common to all parts of DB.
- *
- * The object model of MDB2 is as follows (indentation means inheritance):
- *
- * MDB2 The main MDB2 class. This is simply a utility class
- * with some 'static' methods for creating MDB2 objects as
- * well as common utility functions for other MDB2 classes.
- *
- * MDB2_Driver_Common The base for each MDB2 implementation. Provides default
- * | implementations (in OO lingo virtual methods) for
- * | the actual DB implementations as well as a bunch of
- * | query utility functions.
- * |
- * +-MDB2_Driver_mysql The MDB2 implementation for MySQL. Inherits MDB2_Driver_Common.
- * When calling MDB2::factory or MDB2::connect for MySQL
- * connections, the object returned is an instance of this
- * class.
- * +-MDB2_Driver_pgsql The MDB2 implementation for PostGreSQL. Inherits MDB2_Driver_Common.
- * When calling MDB2::factory or MDB2::connect for PostGreSQL
- * connections, the object returned is an instance of this
- * class.
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2
-{
- // {{{ function setOptions(&$db, $options)
-
- /**
- * set option array in an exiting database object
- *
- * @param MDB2_Driver_Common MDB2 object
- * @param array An associative array of option names and their values.
- *
- * @return mixed MDB2_OK or a PEAR Error object
- *
- * @access public
- */
- function setOptions(&$db, $options)
- {
- if (is_array($options)) {
- foreach ($options as $option => $value) {
- $test = $db->setOption($option, $value);
- if (PEAR::isError($test)) {
- return $test;
- }
- }
- }
- return MDB2_OK;
- }
-
- // }}}
- // {{{ function classExists($classname)
-
- /**
- * Checks if a class exists without triggering __autoload
- *
- * @param string classname
- *
- * @return bool true success and false on error
- * @static
- * @access public
- */
- function classExists($classname)
- {
- if (version_compare(phpversion(), "5.0", ">=")) {
- return class_exists($classname, false);
- }
- return class_exists($classname);
- }
-
- // }}}
- // {{{ function loadClass($class_name, $debug)
-
- /**
- * Loads a PEAR class.
- *
- * @param string classname to load
- * @param bool if errors should be suppressed
- *
- * @return mixed true success or PEAR_Error on failure
- *
- * @access public
- */
- function loadClass($class_name, $debug)
- {
- if (!MDB2::classExists($class_name)) {
- $file_name = str_replace('_', DIRECTORY_SEPARATOR, $class_name).'.php';
-// echo $file_name;
- if ($debug) {
- $include = oc_include_once($file_name);
- } else {
- $include = @oc_include_once($file_name);
- }
- if (!$include) {
-// if (!MDB2::fileExists($file_name)) {
-// $msg = "unable to find package '$class_name' file '$file_name'";
-// } else {
-// $msg = "unable to load class '$class_name' from file '$file_name'";
-// }
-// $err =& MDB2::raiseError(MDB2_ERROR_NOT_FOUND, null, null, $msg);
-// return $err;
- }
- }
- return MDB2_OK;
- }
-
- // }}}
- // {{{ function &factory($dsn, $options = false)
-
- /**
- * Create a new MDB2 object for the specified database type
- *
- * IMPORTANT: In order for MDB2 to work properly it is necessary that
- * you make sure that you work with a reference of the original
- * object instead of a copy (this is a PHP4 quirk).
- *
- * For example:
- * $db =& MDB2::factory($dsn);
- * ^^
- * And not:
- * $db = MDB2::factory($dsn);
- *
- * @param mixed 'data source name', see the MDB2::parseDSN
- * method for a description of the dsn format.
- * Can also be specified as an array of the
- * format returned by MDB2::parseDSN.
- * @param array An associative array of option names and
- * their values.
- *
- * @return mixed a newly created MDB2 object, or false on error
- *
- * @access public
- */
- function &factory($dsn, $options = false)
- {
- $dsninfo = MDB2::parseDSN($dsn);
- if (empty($dsninfo['phptype'])) {
- $err =& MDB2::raiseError(MDB2_ERROR_NOT_FOUND,
- null, null, 'no RDBMS driver specified');
- return $err;
- }
- $class_name = 'MDB2_Driver_'.$dsninfo['phptype'];
-
- $debug = (!empty($options['debug']));
- $err = MDB2::loadClass($class_name, $debug);
- if (PEAR::isError($err)) {
- return $err;
- }
-
- $db =& new $class_name();
- $db->setDSN($dsninfo);
- $err = MDB2::setOptions($db, $options);
- if (PEAR::isError($err)) {
- return $err;
- }
-
- return $db;
- }
-
- // }}}
- // {{{ function &connect($dsn, $options = false)
-
- /**
- * Create a new MDB2_Driver_* connection object and connect to the specified
- * database
- *
- * IMPORTANT: In order for MDB2 to work properly it is necessary that
- * you make sure that you work with a reference of the original
- * object instead of a copy (this is a PHP4 quirk).
- *
- * For example:
- * $db =& MDB2::connect($dsn);
- * ^^
- * And not:
- * $db = MDB2::connect($dsn);
- * ^^
- *
- * @param mixed $dsn 'data source name', see the MDB2::parseDSN
- * method for a description of the dsn format.
- * Can also be specified as an array of the
- * format returned by MDB2::parseDSN.
- * @param array $options An associative array of option names and
- * their values.
- *
- * @return mixed a newly created MDB2 connection object, or a MDB2
- * error object on error
- *
- * @access public
- * @see MDB2::parseDSN
- */
- function &connect($dsn, $options = false)
- {
- $db =& MDB2::factory($dsn, $options);
- if (PEAR::isError($db)) {
- return $db;
- }
-
- $err = $db->connect();
- if (PEAR::isError($err)) {
- $dsn = $db->getDSN('string', 'xxx');
- $db->disconnect();
- $err->addUserInfo($dsn);
- return $err;
- }
-
- return $db;
- }
-
- // }}}
- // {{{ function &singleton($dsn = null, $options = false)
-
- /**
- * Returns a MDB2 connection with the requested DSN.
- * A new MDB2 connection object is only created if no object with the
- * requested DSN exists yet.
- *
- * IMPORTANT: In order for MDB2 to work properly it is necessary that
- * you make sure that you work with a reference of the original
- * object instead of a copy (this is a PHP4 quirk).
- *
- * For example:
- * $db =& MDB2::singleton($dsn);
- * ^^
- * And not:
- * $db = MDB2::singleton($dsn);
- * ^^
- *
- * @param mixed 'data source name', see the MDB2::parseDSN
- * method for a description of the dsn format.
- * Can also be specified as an array of the
- * format returned by MDB2::parseDSN.
- * @param array An associative array of option names and
- * their values.
- *
- * @return mixed a newly created MDB2 connection object, or a MDB2
- * error object on error
- *
- * @access public
- * @see MDB2::parseDSN
- */
- function &singleton($dsn = null, $options = false)
- {
- if ($dsn) {
- $dsninfo = MDB2::parseDSN($dsn);
- $dsninfo = array_merge($GLOBALS['_MDB2_dsninfo_default'], $dsninfo);
- $keys = array_keys($GLOBALS['_MDB2_databases']);
- for ($i=0, $j=count($keys); $i<$j; ++$i) {
- if (isset($GLOBALS['_MDB2_databases'][$keys[$i]])) {
- $tmp_dsn = $GLOBALS['_MDB2_databases'][$keys[$i]]->getDSN('array');
- if (count(array_diff_assoc($tmp_dsn, $dsninfo)) == 0) {
- MDB2::setOptions($GLOBALS['_MDB2_databases'][$keys[$i]], $options);
- return $GLOBALS['_MDB2_databases'][$keys[$i]];
- }
- }
- }
- } elseif (is_array($GLOBALS['_MDB2_databases']) && reset($GLOBALS['_MDB2_databases'])) {
- $db =& $GLOBALS['_MDB2_databases'][key($GLOBALS['_MDB2_databases'])];
- return $db;
- }
- $db =& MDB2::factory($dsn, $options);
- return $db;
- }
-
- // }}}
- // {{{ function areEquals()
-
- /**
- * It looks like there's a memory leak in array_diff() in PHP 5.1.x,
- * so use this method instead.
- * @see http://pear.php.net/bugs/bug.php?id=11790
- *
- * @param array $arr1
- * @param array $arr2
- * @return boolean
- */
- function areEquals($arr1, $arr2)
- {
- if (count($arr1) != count($arr2)) {
- return false;
- }
- foreach (array_keys($arr1) as $k) {
- if (!array_key_exists($k, $arr2) || $arr1[$k] != $arr2[$k]) {
- return false;
- }
- }
- return true;
- }
-
- // }}}
- // {{{ function loadFile($file)
-
- /**
- * load a file (like 'Date')
- *
- * @param string name of the file in the MDB2 directory (without '.php')
- *
- * @return string name of the file that was included
- *
- * @access public
- */
- function loadFile($file)
- {
- $file_name = 'MDB2'.DIRECTORY_SEPARATOR.$file.'.php';
- if (!MDB2::fileExists($file_name)) {
- return MDB2::raiseError(MDB2_ERROR_NOT_FOUND, null, null,
- 'unable to find: '.$file_name);
- }
- if (!include_once($file_name)) {
- return MDB2::raiseError(MDB2_ERROR_NOT_FOUND, null, null,
- 'unable to load driver class: '.$file_name);
- }
- return $file_name;
- }
-
- // }}}
- // {{{ function apiVersion()
-
- /**
- * Return the MDB2 API version
- *
- * @return string the MDB2 API version number
- *
- * @access public
- */
- function apiVersion()
- {
- return '2.5.0b2';
- }
-
- // }}}
- // {{{ function &raiseError($code = null, $mode = null, $options = null, $userinfo = null)
-
- /**
- * This method is used to communicate an error and invoke error
- * callbacks etc. Basically a wrapper for PEAR::raiseError
- * without the message string.
- *
- * @param mixed int error code
- *
- * @param int error mode, see PEAR_Error docs
- *
- * @param mixed If error mode is PEAR_ERROR_TRIGGER, this is the
- * error level (E_USER_NOTICE etc). If error mode is
- * PEAR_ERROR_CALLBACK, this is the callback function,
- * either as a function name, or as an array of an
- * object and method name. For other error modes this
- * parameter is ignored.
- *
- * @param string Extra debug information. Defaults to the last
- * query and native error code.
- *
- * @return PEAR_Error instance of a PEAR Error object
- *
- * @access private
- * @see PEAR_Error
- */
- function &raiseError($code = null,
- $mode = null,
- $options = null,
- $userinfo = null,
- $dummy1 = null,
- $dummy2 = null,
- $dummy3 = false)
- {
- $err =& PEAR::raiseError(null, $code, $mode, $options, $userinfo, 'MDB2_Error', true);
- return $err;
- }
-
- // }}}
- // {{{ function isError($data, $code = null)
-
- /**
- * Tell whether a value is a MDB2 error.
- *
- * @param mixed the value to test
- * @param int if is an error object, return true
- * only if $code is a string and
- * $db->getMessage() == $code or
- * $code is an integer and $db->getCode() == $code
- *
- * @return bool true if parameter is an error
- *
- * @access public
- */
- function isError($data, $code = null)
- {
- if (is_a($data, 'MDB2_Error')) {
- if (is_null($code)) {
- return true;
- } elseif (is_string($code)) {
- return $data->getMessage() === $code;
- } else {
- $code = (array)$code;
- return in_array($data->getCode(), $code);
- }
- }
- return false;
- }
-
- // }}}
- // {{{ function isConnection($value)
-
- /**
- * Tell whether a value is a MDB2 connection
- *
- * @param mixed value to test
- *
- * @return bool whether $value is a MDB2 connection
- *
- * @access public
- */
- function isConnection($value)
- {
- return is_a($value, 'MDB2_Driver_Common');
- }
-
- // }}}
- // {{{ function isResult($value)
-
- /**
- * Tell whether a value is a MDB2 result
- *
- * @param mixed value to test
- *
- * @return bool whether $value is a MDB2 result
- *
- * @access public
- */
- function isResult($value)
- {
- return is_a($value, 'MDB2_Result');
- }
-
- // }}}
- // {{{ function isResultCommon($value)
-
- /**
- * Tell whether a value is a MDB2 result implementing the common interface
- *
- * @param mixed value to test
- *
- * @return bool whether $value is a MDB2 result implementing the common interface
- *
- * @access public
- */
- function isResultCommon($value)
- {
- return is_a($value, 'MDB2_Result_Common');
- }
-
- // }}}
- // {{{ function isStatement($value)
-
- /**
- * Tell whether a value is a MDB2 statement interface
- *
- * @param mixed value to test
- *
- * @return bool whether $value is a MDB2 statement interface
- *
- * @access public
- */
- function isStatement($value)
- {
- return is_a($value, 'MDB2_Statement_Common');
- }
-
- // }}}
- // {{{ function errorMessage($value = null)
-
- /**
- * Return a textual error message for a MDB2 error code
- *
- * @param int|array integer error code,
- null to get the current error code-message map,
- or an array with a new error code-message map
- *
- * @return string error message, or false if the error code was
- * not recognized
- *
- * @access public
- */
- function errorMessage($value = null)
- {
- static $errorMessages;
-
- if (is_array($value)) {
- $errorMessages = $value;
- return MDB2_OK;
- }
-
- if (!isset($errorMessages)) {
- $errorMessages = array(
- MDB2_OK => 'no error',
- MDB2_ERROR => 'unknown error',
- MDB2_ERROR_ALREADY_EXISTS => 'already exists',
- MDB2_ERROR_CANNOT_CREATE => 'can not create',
- MDB2_ERROR_CANNOT_ALTER => 'can not alter',
- MDB2_ERROR_CANNOT_REPLACE => 'can not replace',
- MDB2_ERROR_CANNOT_DELETE => 'can not delete',
- MDB2_ERROR_CANNOT_DROP => 'can not drop',
- MDB2_ERROR_CONSTRAINT => 'constraint violation',
- MDB2_ERROR_CONSTRAINT_NOT_NULL=> 'null value violates not-null constraint',
- MDB2_ERROR_DIVZERO => 'division by zero',
- MDB2_ERROR_INVALID => 'invalid',
- MDB2_ERROR_INVALID_DATE => 'invalid date or time',
- MDB2_ERROR_INVALID_NUMBER => 'invalid number',
- MDB2_ERROR_MISMATCH => 'mismatch',
- MDB2_ERROR_NODBSELECTED => 'no database selected',
- MDB2_ERROR_NOSUCHFIELD => 'no such field',
- MDB2_ERROR_NOSUCHTABLE => 'no such table',
- MDB2_ERROR_NOT_CAPABLE => 'MDB2 backend not capable',
- MDB2_ERROR_NOT_FOUND => 'not found',
- MDB2_ERROR_NOT_LOCKED => 'not locked',
- MDB2_ERROR_SYNTAX => 'syntax error',
- MDB2_ERROR_UNSUPPORTED => 'not supported',
- MDB2_ERROR_VALUE_COUNT_ON_ROW => 'value count on row',
- MDB2_ERROR_INVALID_DSN => 'invalid DSN',
- MDB2_ERROR_CONNECT_FAILED => 'connect failed',
- MDB2_ERROR_NEED_MORE_DATA => 'insufficient data supplied',
- MDB2_ERROR_EXTENSION_NOT_FOUND=> 'extension not found',
- MDB2_ERROR_NOSUCHDB => 'no such database',
- MDB2_ERROR_ACCESS_VIOLATION => 'insufficient permissions',
- MDB2_ERROR_LOADMODULE => 'error while including on demand module',
- MDB2_ERROR_TRUNCATED => 'truncated',
- MDB2_ERROR_DEADLOCK => 'deadlock detected',
- MDB2_ERROR_NO_PERMISSION => 'no permission',
- MDB2_ERROR_DISCONNECT_FAILED => 'disconnect failed',
- );
- }
-
- if (is_null($value)) {
- return $errorMessages;
- }
-
- if (PEAR::isError($value)) {
- $value = $value->getCode();
- }
-
- return isset($errorMessages[$value]) ?
- $errorMessages[$value] : $errorMessages[MDB2_ERROR];
- }
-
- // }}}
- // {{{ function parseDSN($dsn)
-
- /**
- * Parse a data source name.
- *
- * Additional keys can be added by appending a URI query string to the
- * end of the DSN.
- *
- * The format of the supplied DSN is in its fullest form:
- * <code>
- * phptype(dbsyntax)://username:password@protocol+hostspec/database?option=8&another=true
- * </code>
- *
- * Most variations are allowed:
- * <code>
- * phptype://username:password@protocol+hostspec:110//usr/db_file.db?mode=0644
- * phptype://username:password@hostspec/database_name
- * phptype://username:password@hostspec
- * phptype://username@hostspec
- * phptype://hostspec/database
- * phptype://hostspec
- * phptype(dbsyntax)
- * phptype
- * </code>
- *
- * @param string Data Source Name to be parsed
- *
- * @return array an associative array with the following keys:
- * + phptype: Database backend used in PHP (mysql, odbc etc.)
- * + dbsyntax: Database used with regards to SQL syntax etc.
- * + protocol: Communication protocol to use (tcp, unix etc.)
- * + hostspec: Host specification (hostname[:port])
- * + database: Database to use on the DBMS server
- * + username: User name for login
- * + password: Password for login
- *
- * @access public
- * @author Tomas V.V.Cox <cox@idecnet.com>
- */
- function parseDSN($dsn)
- {
- $parsed = $GLOBALS['_MDB2_dsninfo_default'];
-
- if (is_array($dsn)) {
- $dsn = array_merge($parsed, $dsn);
- if (!$dsn['dbsyntax']) {
- $dsn['dbsyntax'] = $dsn['phptype'];
- }
- return $dsn;
- }
-
- // Find phptype and dbsyntax
- if (($pos = strpos($dsn, '://')) !== false) {
- $str = substr($dsn, 0, $pos);
- $dsn = substr($dsn, $pos + 3);
- } else {
- $str = $dsn;
- $dsn = null;
- }
-
- // Get phptype and dbsyntax
- // $str => phptype(dbsyntax)
- if (preg_match('|^(.+?)\((.*?)\)$|', $str, $arr)) {
- $parsed['phptype'] = $arr[1];
- $parsed['dbsyntax'] = !$arr[2] ? $arr[1] : $arr[2];
- } else {
- $parsed['phptype'] = $str;
- $parsed['dbsyntax'] = $str;
- }
-
- if (!count($dsn)) {
- return $parsed;
- }
-
- // Get (if found): username and password
- // $dsn => username:password@protocol+hostspec/database
- if (($at = strrpos($dsn,'@')) !== false) {
- $str = substr($dsn, 0, $at);
- $dsn = substr($dsn, $at + 1);
- if (($pos = strpos($str, ':')) !== false) {
- $parsed['username'] = rawurldecode(substr($str, 0, $pos));
- $parsed['password'] = rawurldecode(substr($str, $pos + 1));
- } else {
- $parsed['username'] = rawurldecode($str);
- }
- }
-
- // Find protocol and hostspec
-
- // $dsn => proto(proto_opts)/database
- if (preg_match('|^([^(]+)\((.*?)\)/?(.*?)$|', $dsn, $match)) {
- $proto = $match[1];
- $proto_opts = $match[2] ? $match[2] : false;
- $dsn = $match[3];
-
- // $dsn => protocol+hostspec/database (old format)
- } else {
- if (strpos($dsn, '+') !== false) {
- list($proto, $dsn) = explode('+', $dsn, 2);
- }
- if ( strpos($dsn, '//') === 0
- && strpos($dsn, '/', 2) !== false
- && $parsed['phptype'] == 'oci8'
- ) {
- //oracle's "Easy Connect" syntax:
- //"username/password@[//]host[:port][/service_name]"
- //e.g. "scott/tiger@//mymachine:1521/oracle"
- $proto_opts = $dsn;
- $dsn = substr($proto_opts, strrpos($proto_opts, '/') + 1);
- } elseif (strpos($dsn, '/') !== false) {
- list($proto_opts, $dsn) = explode('/', $dsn, 2);
- } else {
- $proto_opts = $dsn;
- $dsn = null;
- }
- }
-
- // process the different protocol options
- $parsed['protocol'] = (!empty($proto)) ? $proto : 'tcp';
- $proto_opts = rawurldecode($proto_opts);
- if (strpos($proto_opts, ':') !== false) {
- list($proto_opts, $parsed['port']) = explode(':', $proto_opts);
- }
- if ($parsed['protocol'] == 'tcp') {
- $parsed['hostspec'] = $proto_opts;
- } elseif ($parsed['protocol'] == 'unix') {
- $parsed['socket'] = $proto_opts;
- }
-
- // Get dabase if any
- // $dsn => database
- if ($dsn) {
- // /database
- if (($pos = strpos($dsn, '?')) === false) {
- $parsed['database'] = $dsn;
- // /database?param1=value1¶m2=value2
- } else {
- $parsed['database'] = substr($dsn, 0, $pos);
- $dsn = substr($dsn, $pos + 1);
- if (strpos($dsn, '&') !== false) {
- $opts = explode('&', $dsn);
- } else { // database?param1=value1
- $opts = array($dsn);
- }
- foreach ($opts as $opt) {
- list($key, $value) = explode('=', $opt);
- if (!isset($parsed[$key])) {
- // don't allow params overwrite
- $parsed[$key] = rawurldecode($value);
- }
- }
- }
- }
-
- return $parsed;
- }
-
- // }}}
- // {{{ function fileExists($file)
-
- /**
- * Checks if a file exists in the include path
- *
- * @param string filename
- *
- * @return bool true success and false on error
- *
- * @access public
- */
- function fileExists($file)
- {
- // safe_mode does notwork with is_readable()
- if (!@ini_get('safe_mode')) {
- $dirs = explode(PATH_SEPARATOR, ini_get('include_path'));
- foreach ($dirs as $dir) {
- if (is_readable($dir . DIRECTORY_SEPARATOR . $file)) {
- return true;
- }
- }
- } else {
- $fp = @fopen($file, 'r', true);
- if (is_resource($fp)) {
- @fclose($fp);
- return true;
- }
- }
- return false;
- }
- // }}}
-}
-
-// }}}
-// {{{ class MDB2_Error extends PEAR_Error
-
-/**
- * MDB2_Error implements a class for reporting portable database error
- * messages.
- *
- * @package MDB2
- * @category Database
- * @author Stig Bakken <ssb@fast.no>
- */
-class MDB2_Error extends PEAR_Error
-{
- // {{{ constructor: function MDB2_Error($code = MDB2_ERROR, $mode = PEAR_ERROR_RETURN, $level = E_USER_NOTICE, $debuginfo = null)
-
- /**
- * MDB2_Error constructor.
- *
- * @param mixed MDB2 error code, or string with error message.
- * @param int what 'error mode' to operate in
- * @param int what error level to use for $mode & PEAR_ERROR_TRIGGER
- * @param mixed additional debug info, such as the last query
- */
- function MDB2_Error($code = MDB2_ERROR, $mode = PEAR_ERROR_RETURN,
- $level = E_USER_NOTICE, $debuginfo = null, $dummy = null)
- {
- if (is_null($code)) {
- $code = MDB2_ERROR;
- }
- $this->PEAR_Error('MDB2 Error: '.MDB2::errorMessage($code), $code,
- $mode, $level, $debuginfo);
- }
-
- // }}}
-}
-
-// }}}
-// {{{ class MDB2_Driver_Common extends PEAR
-
-/**
- * MDB2_Driver_Common: Base class that is extended by each MDB2 driver
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Driver_Common extends PEAR
-{
- // {{{ Variables (Properties)
-
- /**
- * index of the MDB2 object within the $GLOBALS['_MDB2_databases'] array
- * @var int
- * @access public
- */
- var $db_index = 0;
-
- /**
- * DSN used for the next query
- * @var array
- * @access protected
- */
- var $dsn = array();
-
- /**
- * DSN that was used to create the current connection
- * @var array
- * @access protected
- */
- var $connected_dsn = array();
-
- /**
- * connection resource
- * @var mixed
- * @access protected
- */
- var $connection = 0;
-
- /**
- * if the current opened connection is a persistent connection
- * @var bool
- * @access protected
- */
- var $opened_persistent;
-
- /**
- * the name of the database for the next query
- * @var string
- * @access protected
- */
- var $database_name = '';
-
- /**
- * the name of the database currently selected
- * @var string
- * @access protected
- */
- var $connected_database_name = '';
-
- /**
- * server version information
- * @var string
- * @access protected
- */
- var $connected_server_info = '';
-
- /**
- * list of all supported features of the given driver
- * @var array
- * @access public
- */
- var $supported = array(
- 'sequences' => false,
- 'indexes' => false,
- 'affected_rows' => false,
- 'summary_functions' => false,
- 'order_by_text' => false,
- 'transactions' => false,
- 'savepoints' => false,
- 'current_id' => false,
- 'limit_queries' => false,
- 'LOBs' => false,
- 'replace' => false,
- 'sub_selects' => false,
- 'triggers' => false,
- 'auto_increment' => false,
- 'primary_key' => false,
- 'result_introspection' => false,
- 'prepared_statements' => false,
- 'identifier_quoting' => false,
- 'pattern_escaping' => false,
- 'new_link' => false,
- );
-
- /**
- * Array of supported options that can be passed to the MDB2 instance.
- *
- * The options can be set during object creation, using
- * MDB2::connect(), MDB2::factory() or MDB2::singleton(). The options can
- * also be set after the object is created, using MDB2::setOptions() or
- * MDB2_Driver_Common::setOption().
- * The list of available option includes:
- * <ul>
- * <li>$options['ssl'] -> boolean: determines if ssl should be used for connections</li>
- * <li>$options['field_case'] -> CASE_LOWER|CASE_UPPER: determines what case to force on field/table names</li>
- * <li>$options['disable_query'] -> boolean: determines if queries should be executed</li>
- * <li>$options['result_class'] -> string: class used for result sets</li>
- * <li>$options['buffered_result_class'] -> string: class used for buffered result sets</li>
- * <li>$options['result_wrap_class'] -> string: class used to wrap result sets into</li>
- * <li>$options['result_buffering'] -> boolean should results be buffered or not?</li>
- * <li>$options['fetch_class'] -> string: class to use when fetch mode object is used</li>
- * <li>$options['persistent'] -> boolean: persistent connection?</li>
- * <li>$options['debug'] -> integer: numeric debug level</li>
- * <li>$options['debug_handler'] -> string: function/method that captures debug messages</li>
- * <li>$options['debug_expanded_output'] -> bool: BC option to determine if more context information should be send to the debug handler</li>
- * <li>$options['default_text_field_length'] -> integer: default text field length to use</li>
- * <li>$options['lob_buffer_length'] -> integer: LOB buffer length</li>
- * <li>$options['log_line_break'] -> string: line-break format</li>
- * <li>$options['idxname_format'] -> string: pattern for index name</li>
- * <li>$options['seqname_format'] -> string: pattern for sequence name</li>
- * <li>$options['savepoint_format'] -> string: pattern for auto generated savepoint names</li>
- * <li>$options['statement_format'] -> string: pattern for prepared statement names</li>
- * <li>$options['seqcol_name'] -> string: sequence column name</li>
- * <li>$options['quote_identifier'] -> boolean: if identifier quoting should be done when check_option is used</li>
- * <li>$options['use_transactions'] -> boolean: if transaction use should be enabled</li>
- * <li>$options['decimal_places'] -> integer: number of decimal places to handle</li>
- * <li>$options['portability'] -> integer: portability constant</li>
- * <li>$options['modules'] -> array: short to long module name mapping for __call()</li>
- * <li>$options['emulate_prepared'] -> boolean: force prepared statements to be emulated</li>
- * <li>$options['datatype_map'] -> array: map user defined datatypes to other primitive datatypes</li>
- * <li>$options['datatype_map_callback'] -> array: callback function/method that should be called</li>
- * <li>$options['bindname_format'] -> string: regular expression pattern for named parameters</li>
- * <li>$options['multi_query'] -> boolean: determines if queries returning multiple result sets should be executed</li>
- * <li>$options['max_identifiers_length'] -> integer: max identifier length</li>
- * <li>$options['default_fk_action_onupdate'] -> string: default FOREIGN KEY ON UPDATE action ['RESTRICT'|'NO ACTION'|'SET DEFAULT'|'SET NULL'|'CASCADE']</li>
- * <li>$options['default_fk_action_ondelete'] -> string: default FOREIGN KEY ON DELETE action ['RESTRICT'|'NO ACTION'|'SET DEFAULT'|'SET NULL'|'CASCADE']</li>
- * </ul>
- *
- * @var array
- * @access public
- * @see MDB2::connect()
- * @see MDB2::factory()
- * @see MDB2::singleton()
- * @see MDB2_Driver_Common::setOption()
- */
- var $options = array(
- 'ssl' => false,
- 'field_case' => CASE_LOWER,
- 'disable_query' => false,
- 'result_class' => 'MDB2_Result_%s',
- 'buffered_result_class' => 'MDB2_BufferedResult_%s',
- 'result_wrap_class' => false,
- 'result_buffering' => true,
- 'fetch_class' => 'stdClass',
- 'persistent' => false,
- 'debug' => 0,
- 'debug_handler' => 'MDB2_defaultDebugOutput',
- 'debug_expanded_output' => false,
- 'default_text_field_length' => 4096,
- 'lob_buffer_length' => 8192,
- 'log_line_break' => "\n",
- 'idxname_format' => '%s_idx',
- 'seqname_format' => '%s_seq',
- 'savepoint_format' => 'MDB2_SAVEPOINT_%s',
- 'statement_format' => 'MDB2_STATEMENT_%1$s_%2$s',
- 'seqcol_name' => 'sequence',
- 'quote_identifier' => false,
- 'use_transactions' => true,
- 'decimal_places' => 2,
- 'portability' => MDB2_PORTABILITY_ALL,
- 'modules' => array(
- 'ex' => 'Extended',
- 'dt' => 'Datatype',
- 'mg' => 'Manager',
- 'rv' => 'Reverse',
- 'na' => 'Native',
- 'fc' => 'Function',
- ),
- 'emulate_prepared' => false,
- 'datatype_map' => array(),
- 'datatype_map_callback' => array(),
- 'nativetype_map_callback' => array(),
- 'lob_allow_url_include' => false,
- 'bindname_format' => '(?:\d+)|(?:[a-zA-Z][a-zA-Z0-9_]*)',
- 'max_identifiers_length' => 30,
- 'default_fk_action_onupdate' => 'RESTRICT',
- 'default_fk_action_ondelete' => 'RESTRICT',
- );
-
- /**
- * string array
- * @var string
- * @access protected
- */
- var $string_quoting = array('start' => "'", 'end' => "'", 'escape' => false, 'escape_pattern' => false);
-
- /**
- * identifier quoting
- * @var array
- * @access protected
- */
- var $identifier_quoting = array('start' => '"', 'end' => '"', 'escape' => '"');
-
- /**
- * sql comments
- * @var array
- * @access protected
- */
- var $sql_comments = array(
- array('start' => '--', 'end' => "\n", 'escape' => false),
- array('start' => '/*', 'end' => '*/', 'escape' => false),
- );
-
- /**
- * comparision wildcards
- * @var array
- * @access protected
- */
- var $wildcards = array('%', '_');
-
- /**
- * column alias keyword
- * @var string
- * @access protected
- */
- var $as_keyword = ' AS ';
-
- /**
- * warnings
- * @var array
- * @access protected
- */
- var $warnings = array();
-
- /**
- * string with the debugging information
- * @var string
- * @access public
- */
- var $debug_output = '';
-
- /**
- * determine if there is an open transaction
- * @var bool
- * @access protected
- */
- var $in_transaction = false;
-
- /**
- * the smart transaction nesting depth
- * @var int
- * @access protected
- */
- var $nested_transaction_counter = null;
-
- /**
- * the first error that occured inside a nested transaction
- * @var MDB2_Error|bool
- * @access protected
- */
- var $has_transaction_error = false;
-
- /**
- * result offset used in the next query
- * @var int
- * @access protected
- */
- var $offset = 0;
-
- /**
- * result limit used in the next query
- * @var int
- * @access protected
- */
- var $limit = 0;
-
- /**
- * Database backend used in PHP (mysql, odbc etc.)
- * @var string
- * @access public
- */
- var $phptype;
-
- /**
- * Database used with regards to SQL syntax etc.
- * @var string
- * @access public
- */
- var $dbsyntax;
-
- /**
- * the last query sent to the driver
- * @var string
- * @access public
- */
- var $last_query;
-
- /**
- * the default fetchmode used
- * @var int
- * @access protected
- */
- var $fetchmode = MDB2_FETCHMODE_ORDERED;
-
- /**
- * array of module instances
- * @var array
- * @access protected
- */
- var $modules = array();
-
- /**
- * determines of the PHP4 destructor emulation has been enabled yet
- * @var array
- * @access protected
- */
- var $destructor_registered = true;
-
- // }}}
- // {{{ constructor: function __construct()
-
- /**
- * Constructor
- */
- function __construct()
- {
- end($GLOBALS['_MDB2_databases']);
- $db_index = key($GLOBALS['_MDB2_databases']) + 1;
- $GLOBALS['_MDB2_databases'][$db_index] = &$this;
- $this->db_index = $db_index;
- }
-
- // }}}
- // {{{ function MDB2_Driver_Common()
-
- /**
- * PHP 4 Constructor
- */
- function MDB2_Driver_Common()
- {
- $this->destructor_registered = false;
- $this->__construct();
- }
-
- // }}}
- // {{{ destructor: function __destruct()
-
- /**
- * Destructor
- */
- function __destruct()
- {
- $this->disconnect(false);
- }
-
- // }}}
- // {{{ function free()
-
- /**
- * Free the internal references so that the instance can be destroyed
- *
- * @return bool true on success, false if result is invalid
- *
- * @access public
- */
- function free()
- {
- unset($GLOBALS['_MDB2_databases'][$this->db_index]);
- unset($this->db_index);
- return MDB2_OK;
- }
-
- // }}}
- // {{{ function __toString()
-
- /**
- * String conversation
- *
- * @return string representation of the object
- *
- * @access public
- */
- function __toString()
- {
- $info = get_class($this);
- $info.= ': (phptype = '.$this->phptype.', dbsyntax = '.$this->dbsyntax.')';
- if ($this->connection) {
- $info.= ' [connected]';
- }
- return $info;
- }
-
- // }}}
- // {{{ function errorInfo($error = null)
-
- /**
- * This method is used to collect information about an error
- *
- * @param mixed error code or resource
- *
- * @return array with MDB2 errorcode, native error code, native message
- *
- * @access public
- */
- function errorInfo($error = null)
- {
- return array($error, null, null);
- }
-
- // }}}
- // {{{ function &raiseError($code = null, $mode = null, $options = null, $userinfo = null)
-
- /**
- * This method is used to communicate an error and invoke error
- * callbacks etc. Basically a wrapper for PEAR::raiseError
- * without the message string.
- *
- * @param mixed $code integer error code, or a PEAR error object (all
- * other parameters are ignored if this parameter is
- * an object
- * @param int $mode error mode, see PEAR_Error docs
- * @param mixed $options If error mode is PEAR_ERROR_TRIGGER, this is the
- * error level (E_USER_NOTICE etc). If error mode is
- * PEAR_ERROR_CALLBACK, this is the callback function,
- * either as a function name, or as an array of an
- * object and method name. For other error modes this
- * parameter is ignored.
- * @param string $userinfo Extra debug information. Defaults to the last
- * query and native error code.
- * @param string $method name of the method that triggered the error
- * @param string $dummy1 not used
- * @param bool $dummy2 not used
- *
- * @return PEAR_Error instance of a PEAR Error object
- * @access public
- * @see PEAR_Error
- */
- function &raiseError($code = null,
- $mode = null,
- $options = null,
- $userinfo = null,
- $method = null,
- $dummy1 = null,
- $dummy2 = false
- ) {
- $userinfo = "[Error message: $userinfo]\n";
- // The error is yet a MDB2 error object
- if (PEAR::isError($code)) {
- // because we use the static PEAR::raiseError, our global
- // handler should be used if it is set
- if (is_null($mode) && !empty($this->_default_error_mode)) {
- $mode = $this->_default_error_mode;
- $options = $this->_default_error_options;
- }
- if (is_null($userinfo)) {
- $userinfo = $code->getUserinfo();
- }
- $code = $code->getCode();
- } elseif ($code == MDB2_ERROR_NOT_FOUND) {
- // extension not loaded: don't call $this->errorInfo() or the script
- // will die
- } elseif (isset($this->connection)) {
- if (!empty($this->last_query)) {
- $userinfo.= "[Last executed query: {$this->last_query}]\n";
- }
- $native_errno = $native_msg = null;
- list($code, $native_errno, $native_msg) = $this->errorInfo($code);
- if (!is_null($native_errno) && $native_errno !== '') {
- $userinfo.= "[Native code: $native_errno]\n";
- }
- if (!is_null($native_msg) && $native_msg !== '') {
- $userinfo.= "[Native message: ". strip_tags($native_msg) ."]\n";
- }
- if (!is_null($method)) {
- $userinfo = $method.': '.$userinfo;
- }
- }
-
- $err =& PEAR::raiseError(null, $code, $mode, $options, $userinfo, 'MDB2_Error', true);
- if ($err->getMode() !== PEAR_ERROR_RETURN
- && isset($this->nested_transaction_counter) && !$this->has_transaction_error) {
- $this->has_transaction_error =& $err;
- }
- return $err;
- }
-
- // }}}
- // {{{ function resetWarnings()
-
- /**
- * reset the warning array
- *
- * @return void
- *
- * @access public
- */
- function resetWarnings()
- {
- $this->warnings = array();
- }
-
- // }}}
- // {{{ function getWarnings()
-
- /**
- * Get all warnings in reverse order.
- * This means that the last warning is the first element in the array
- *
- * @return array with warnings
- *
- * @access public
- * @see resetWarnings()
- */
- function getWarnings()
- {
- return array_reverse($this->warnings);
- }
-
- // }}}
- // {{{ function setFetchMode($fetchmode, $object_class = 'stdClass')
-
- /**
- * Sets which fetch mode should be used by default on queries
- * on this connection
- *
- * @param int MDB2_FETCHMODE_ORDERED, MDB2_FETCHMODE_ASSOC
- * or MDB2_FETCHMODE_OBJECT
- * @param string the class name of the object to be returned
- * by the fetch methods when the
- * MDB2_FETCHMODE_OBJECT mode is selected.
- * If no class is specified by default a cast
- * to object from the assoc array row will be
- * done. There is also the possibility to use
- * and extend the 'MDB2_row' class.
- *
- * @return mixed MDB2_OK or MDB2 Error Object
- *
- * @access public
- * @see MDB2_FETCHMODE_ORDERED, MDB2_FETCHMODE_ASSOC, MDB2_FETCHMODE_OBJECT
- */
- function setFetchMode($fetchmode, $object_class = 'stdClass')
- {
- switch ($fetchmode) {
- case MDB2_FETCHMODE_OBJECT:
- $this->options['fetch_class'] = $object_class;
- case MDB2_FETCHMODE_ORDERED:
- case MDB2_FETCHMODE_ASSOC:
- $this->fetchmode = $fetchmode;
- break;
- default:
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'invalid fetchmode mode', __FUNCTION__);
- }
-
- return MDB2_OK;
- }
-
- // }}}
- // {{{ function setOption($option, $value)
-
- /**
- * set the option for the db class
- *
- * @param string option name
- * @param mixed value for the option
- *
- * @return mixed MDB2_OK or MDB2 Error Object
- *
- * @access public
- */
- function setOption($option, $value)
- {
- if (array_key_exists($option, $this->options)) {
- $this->options[$option] = $value;
- return MDB2_OK;
- }
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- "unknown option $option", __FUNCTION__);
- }
-
- // }}}
- // {{{ function getOption($option)
-
- /**
- * Returns the value of an option
- *
- * @param string option name
- *
- * @return mixed the option value or error object
- *
- * @access public
- */
- function getOption($option)
- {
- if (array_key_exists($option, $this->options)) {
- return $this->options[$option];
- }
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- "unknown option $option", __FUNCTION__);
- }
-
- // }}}
- // {{{ function debug($message, $scope = '', $is_manip = null)
-
- /**
- * set a debug message
- *
- * @param string message that should be appended to the debug variable
- * @param string usually the method name that triggered the debug call:
- * for example 'query', 'prepare', 'execute', 'parameters',
- * 'beginTransaction', 'commit', 'rollback'
- * @param array contains context information about the debug() call
- * common keys are: is_manip, time, result etc.
- *
- * @return void
- *
- * @access public
- */
- function debug($message, $scope = '', $context = array())
- {
- if ($this->options['debug'] && $this->options['debug_handler']) {
- if (!$this->options['debug_expanded_output']) {
- if (!empty($context['when']) && $context['when'] !== 'pre') {
- return null;
- }
- $context = empty($context['is_manip']) ? false : $context['is_manip'];
- }
- return call_user_func_array($this->options['debug_handler'], array(&$this, $scope, $message, $context));
- }
- return null;
- }
-
- // }}}
- // {{{ function getDebugOutput()
-
- /**
- * output debug info
- *
- * @return string content of the debug_output class variable
- *
- * @access public
- */
- function getDebugOutput()
- {
- return $this->debug_output;
- }
-
- // }}}
- // {{{ function escape($text)
-
- /**
- * Quotes a string so it can be safely used in a query. It will quote
- * the text so it can safely be used within a query.
- *
- * @param string the input string to quote
- * @param bool escape wildcards
- *
- * @return string quoted string
- *
- * @access public
- */
- function escape($text, $escape_wildcards = false)
- {
- if ($escape_wildcards) {
- $text = $this->escapePattern($text);
- }
-
- $text = str_replace($this->string_quoting['end'], $this->string_quoting['escape'] . $this->string_quoting['end'], $text);
- return $text;
- }
-
- // }}}
- // {{{ function escapePattern($text)
-
- /**
- * Quotes pattern (% and _) characters in a string)
- *
- * @param string the input string to quote
- *
- * @return string quoted string
- *
- * @access public
- */
- function escapePattern($text)
- {
- if ($this->string_quoting['escape_pattern']) {
- $text = str_replace($this->string_quoting['escape_pattern'], $this->string_quoting['escape_pattern'] . $this->string_quoting['escape_pattern'], $text);
- foreach ($this->wildcards as $wildcard) {
- $text = str_replace($wildcard, $this->string_quoting['escape_pattern'] . $wildcard, $text);
- }
- }
- return $text;
- }
-
- // }}}
- // {{{ function quoteIdentifier($str, $check_option = false)
-
- /**
- * Quote a string so it can be safely used as a table or column name
- *
- * Delimiting style depends on which database driver is being used.
- *
- * NOTE: just because you CAN use delimited identifiers doesn't mean
- * you SHOULD use them. In general, they end up causing way more
- * problems than they solve.
- *
- * NOTE: if you have table names containing periods, don't use this method
- * (@see bug #11906)
- *
- * Portability is broken by using the following characters inside
- * delimited identifiers:
- * + backtick (<kbd>`</kbd>) -- due to MySQL
- * + double quote (<kbd>"</kbd>) -- due to Oracle
- * + brackets (<kbd>[</kbd> or <kbd>]</kbd>) -- due to Access
- *
- * Delimited identifiers are known to generally work correctly under
- * the following drivers:
- * + mssql
- * + mysql
- * + mysqli
- * + oci8
- * + pgsql
- * + sqlite
- *
- * InterBase doesn't seem to be able to use delimited identifiers
- * via PHP 4. They work fine under PHP 5.
- *
- * @param string identifier name to be quoted
- * @param bool check the 'quote_identifier' option
- *
- * @return string quoted identifier string
- *
- * @access public
- */
- function quoteIdentifier($str, $check_option = false)
- {
- if ($check_option && !$this->options['quote_identifier']) {
- return $str;
- }
- $str = str_replace($this->identifier_quoting['end'], $this->identifier_quoting['escape'] . $this->identifier_quoting['end'], $str);
- $parts = explode('.', $str);
- foreach (array_keys($parts) as $k) {
- $parts[$k] = $this->identifier_quoting['start'] . $parts[$k] . $this->identifier_quoting['end'];
- }
- return implode('.', $parts);
- }
-
- // }}}
- // {{{ function getAsKeyword()
-
- /**
- * Gets the string to alias column
- *
- * @return string to use when aliasing a column
- */
- function getAsKeyword()
- {
- return $this->as_keyword;
- }
-
- // }}}
- // {{{ function getConnection()
-
- /**
- * Returns a native connection
- *
- * @return mixed a valid MDB2 connection object,
- * or a MDB2 error object on error
- *
- * @access public
- */
- function getConnection()
- {
- $result = $this->connect();
- if (PEAR::isError($result)) {
- return $result;
- }
- return $this->connection;
- }
-
- // }}}
- // {{{ function _fixResultArrayValues(&$row, $mode)
-
- /**
- * Do all necessary conversions on result arrays to fix DBMS quirks
- *
- * @param array the array to be fixed (passed by reference)
- * @param array bit-wise addition of the required portability modes
- *
- * @return void
- *
- * @access protected
- */
- function _fixResultArrayValues(&$row, $mode)
- {
- switch ($mode) {
- case MDB2_PORTABILITY_EMPTY_TO_NULL:
- foreach ($row as $key => $value) {
- if ($value === '') {
- $row[$key] = null;
- }
- }
- break;
- case MDB2_PORTABILITY_RTRIM:
- foreach ($row as $key => $value) {
- if (is_string($value)) {
- $row[$key] = rtrim($value);
- }
- }
- break;
- case MDB2_PORTABILITY_FIX_ASSOC_FIELD_NAMES:
- $tmp_row = array();
- foreach ($row as $key => $value) {
- $tmp_row[preg_replace('/^(?:.*\.)?([^.]+)$/', '\\1', $key)] = $value;
- }
- $row = $tmp_row;
- break;
- case (MDB2_PORTABILITY_RTRIM + MDB2_PORTABILITY_EMPTY_TO_NULL):
- foreach ($row as $key => $value) {
- if ($value === '') {
- $row[$key] = null;
- } elseif (is_string($value)) {
- $row[$key] = rtrim($value);
- }
- }
- break;
- case (MDB2_PORTABILITY_RTRIM + MDB2_PORTABILITY_FIX_ASSOC_FIELD_NAMES):
- $tmp_row = array();
- foreach ($row as $key => $value) {
- if (is_string($value)) {
- $value = rtrim($value);
- }
- $tmp_row[preg_replace('/^(?:.*\.)?([^.]+)$/', '\\1', $key)] = $value;
- }
- $row = $tmp_row;
- break;
- case (MDB2_PORTABILITY_EMPTY_TO_NULL + MDB2_PORTABILITY_FIX_ASSOC_FIELD_NAMES):
- $tmp_row = array();
- foreach ($row as $key => $value) {
- if ($value === '') {
- $value = null;
- }
- $tmp_row[preg_replace('/^(?:.*\.)?([^.]+)$/', '\\1', $key)] = $value;
- }
- $row = $tmp_row;
- break;
- case (MDB2_PORTABILITY_RTRIM + MDB2_PORTABILITY_EMPTY_TO_NULL + MDB2_PORTABILITY_FIX_ASSOC_FIELD_NAMES):
- $tmp_row = array();
- foreach ($row as $key => $value) {
- if ($value === '') {
- $value = null;
- } elseif (is_string($value)) {
- $value = rtrim($value);
- }
- $tmp_row[preg_replace('/^(?:.*\.)?([^.]+)$/', '\\1', $key)] = $value;
- }
- $row = $tmp_row;
- break;
- }
- }
-
- // }}}
- // {{{ function &loadModule($module, $property = null, $phptype_specific = null)
-
- /**
- * loads a module
- *
- * @param string name of the module that should be loaded
- * (only used for error messages)
- * @param string name of the property into which the class will be loaded
- * @param bool if the class to load for the module is specific to the
- * phptype
- *
- * @return object on success a reference to the given module is returned
- * and on failure a PEAR error
- *
- * @access public
- */
- function &loadModule($module, $property = null, $phptype_specific = null)
- {
- if (!$property) {
- $property = strtolower($module);
- }
-
- if (!isset($this->{$property})) {
- $version = $phptype_specific;
- if ($phptype_specific !== false) {
- $version = true;
- $class_name = 'MDB2_Driver_'.$module.'_'.$this->phptype;
- $file_name = str_replace('_', DIRECTORY_SEPARATOR, $class_name).'.php';
- }
- if ($phptype_specific === false
- || (!MDB2::classExists($class_name) && !MDB2::fileExists($file_name))
- ) {
- $version = false;
- $class_name = 'MDB2_'.$module;
- $file_name = str_replace('_', DIRECTORY_SEPARATOR, $class_name).'.php';
- }
-
- $err = MDB2::loadClass($class_name, $this->getOption('debug'));
- if (PEAR::isError($err)) {
- return $err;
- }
-
- // load module in a specific version
- if ($version) {
- if (method_exists($class_name, 'getClassName')) {
- $class_name_new = call_user_func(array($class_name, 'getClassName'), $this->db_index);
- if ($class_name != $class_name_new) {
- $class_name = $class_name_new;
- $err = MDB2::loadClass($class_name, $this->getOption('debug'));
- if (PEAR::isError($err)) {
- return $err;
- }
- }
- }
- }
-
- if (!MDB2::classExists($class_name)) {
- $err =& $this->raiseError(MDB2_ERROR_LOADMODULE, null, null,
- "unable to load module '$module' into property '$property'", __FUNCTION__);
- return $err;
- }
- $this->{$property} = new $class_name($this->db_index);
- $this->modules[$module] =& $this->{$property};
- if ($version) {
- // this will be used in the connect method to determine if the module
- // needs to be loaded with a different version if the server
- // version changed in between connects
- $this->loaded_version_modules[] = $property;
- }
- }
-
- return $this->{$property};
- }
-
- // }}}
- // {{{ function __call($method, $params)
-
- /**
- * Calls a module method using the __call magic method
- *
- * @param string Method name.
- * @param array Arguments.
- *
- * @return mixed Returned value.
- */
- function __call($method, $params)
- {
- $module = null;
- if (preg_match('/^([a-z]+)([A-Z])(.*)$/', $method, $match)
- && isset($this->options['modules'][$match[1]])
- ) {
- $module = $this->options['modules'][$match[1]];
- $method = strtolower($match[2]).$match[3];
- if (!isset($this->modules[$module]) || !is_object($this->modules[$module])) {
- $result =& $this->loadModule($module);
- if (PEAR::isError($result)) {
- return $result;
- }
- }
- } else {
- foreach ($this->modules as $key => $foo) {
- if (is_object($this->modules[$key])
- && method_exists($this->modules[$key], $method)
- ) {
- $module = $key;
- break;
- }
- }
- }
- if (!is_null($module)) {
- return call_user_func_array(array(&$this->modules[$module], $method), $params);
- }
- trigger_error(sprintf('Call to undefined function: %s::%s().', get_class($this), $method), E_USER_ERROR);
- }
-
- // }}}
- // {{{ function beginTransaction($savepoint = null)
-
- /**
- * Start a transaction or set a savepoint.
- *
- * @param string name of a savepoint to set
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- */
- function beginTransaction($savepoint = null)
- {
- $this->debug('Starting transaction', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'transactions are not supported', __FUNCTION__);
- }
-
- // }}}
- // {{{ function commit($savepoint = null)
-
- /**
- * Commit the database changes done during a transaction that is in
- * progress or release a savepoint. This function may only be called when
- * auto-committing is disabled, otherwise it will fail. Therefore, a new
- * transaction is implicitly started after committing the pending changes.
- *
- * @param string name of a savepoint to release
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- */
- function commit($savepoint = null)
- {
- $this->debug('Committing transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'commiting transactions is not supported', __FUNCTION__);
- }
-
- // }}}
- // {{{ function rollback($savepoint = null)
-
- /**
- * Cancel any database changes done during a transaction or since a specific
- * savepoint that is in progress. This function may only be called when
- * auto-committing is disabled, otherwise it will fail. Therefore, a new
- * transaction is implicitly started after canceling the pending changes.
- *
- * @param string name of a savepoint to rollback to
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- */
- function rollback($savepoint = null)
- {
- $this->debug('Rolling back transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'rolling back transactions is not supported', __FUNCTION__);
- }
-
- // }}}
- // {{{ function inTransaction($ignore_nested = false)
-
- /**
- * If a transaction is currently open.
- *
- * @param bool if the nested transaction count should be ignored
- * @return int|bool - an integer with the nesting depth is returned if a
- * nested transaction is open
- * - true is returned for a normal open transaction
- * - false is returned if no transaction is open
- *
- * @access public
- */
- function inTransaction($ignore_nested = false)
- {
- if (!$ignore_nested && isset($this->nested_transaction_counter)) {
- return $this->nested_transaction_counter;
- }
- return $this->in_transaction;
- }
-
- // }}}
- // {{{ function setTransactionIsolation($isolation)
-
- /**
- * Set the transacton isolation level.
- *
- * @param string standard isolation level
- * READ UNCOMMITTED (allows dirty reads)
- * READ COMMITTED (prevents dirty reads)
- * REPEATABLE READ (prevents nonrepeatable reads)
- * SERIALIZABLE (prevents phantom reads)
- * @param array some transaction options:
- * 'wait' => 'WAIT' | 'NO WAIT'
- * 'rw' => 'READ WRITE' | 'READ ONLY'
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- * @since 2.1.1
- */
- function setTransactionIsolation($isolation, $options = array())
- {
- $this->debug('Setting transaction isolation level', __FUNCTION__, array('is_manip' => true));
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'isolation level setting is not supported', __FUNCTION__);
- }
-
- // }}}
- // {{{ function beginNestedTransaction($savepoint = false)
-
- /**
- * Start a nested transaction.
- *
- * @return mixed MDB2_OK on success/savepoint name, a MDB2 error on failure
- *
- * @access public
- * @since 2.1.1
- */
- function beginNestedTransaction()
- {
- if ($this->in_transaction) {
- ++$this->nested_transaction_counter;
- $savepoint = sprintf($this->options['savepoint_format'], $this->nested_transaction_counter);
- if ($this->supports('savepoints') && $savepoint) {
- return $this->beginTransaction($savepoint);
- }
- return MDB2_OK;
- }
- $this->has_transaction_error = false;
- $result = $this->beginTransaction();
- $this->nested_transaction_counter = 1;
- return $result;
- }
-
- // }}}
- // {{{ function completeNestedTransaction($force_rollback = false, $release = false)
-
- /**
- * Finish a nested transaction by rolling back if an error occured or
- * committing otherwise.
- *
- * @param bool if the transaction should be rolled back regardless
- * even if no error was set within the nested transaction
- * @return mixed MDB_OK on commit/counter decrementing, false on rollback
- * and a MDB2 error on failure
- *
- * @access public
- * @since 2.1.1
- */
- function completeNestedTransaction($force_rollback = false)
- {
- if ($this->nested_transaction_counter > 1) {
- $savepoint = sprintf($this->options['savepoint_format'], $this->nested_transaction_counter);
- if ($this->supports('savepoints') && $savepoint) {
- if ($force_rollback || $this->has_transaction_error) {
- $result = $this->rollback($savepoint);
- if (!PEAR::isError($result)) {
- $result = false;
- $this->has_transaction_error = false;
- }
- } else {
- $result = $this->commit($savepoint);
- }
- } else {
- $result = MDB2_OK;
- }
- --$this->nested_transaction_counter;
- return $result;
- }
-
- $this->nested_transaction_counter = null;
- $result = MDB2_OK;
-
- // transaction has not yet been rolled back
- if ($this->in_transaction) {
- if ($force_rollback || $this->has_transaction_error) {
- $result = $this->rollback();
- if (!PEAR::isError($result)) {
- $result = false;
- }
- } else {
- $result = $this->commit();
- }
- }
- $this->has_transaction_error = false;
- return $result;
- }
-
- // }}}
- // {{{ function failNestedTransaction($error = null, $immediately = false)
-
- /**
- * Force setting nested transaction to failed.
- *
- * @param mixed value to return in getNestededTransactionError()
- * @param bool if the transaction should be rolled back immediately
- * @return bool MDB2_OK
- *
- * @access public
- * @since 2.1.1
- */
- function failNestedTransaction($error = null, $immediately = false)
- {
- if (is_null($error)) {
- $error = $this->has_transaction_error ? $this->has_transaction_error : true;
- } elseif (!$error) {
- $error = true;
- }
- $this->has_transaction_error = $error;
- if (!$immediately) {
- return MDB2_OK;
- }
- return $this->rollback();
- }
-
- // }}}
- // {{{ function getNestedTransactionError()
-
- /**
- * The first error that occured since the transaction start.
- *
- * @return MDB2_Error|bool MDB2 error object if an error occured or false.
- *
- * @access public
- * @since 2.1.1
- */
- function getNestedTransactionError()
- {
- return $this->has_transaction_error;
- }
-
- // }}}
- // {{{ connect()
-
- /**
- * Connect to the database
- *
- * @return true on success, MDB2 Error Object on failure
- */
- function connect()
- {
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ databaseExists()
-
- /**
- * check if given database name is exists?
- *
- * @param string $name name of the database that should be checked
- *
- * @return mixed true/false on success, a MDB2 error on failure
- * @access public
- */
- function databaseExists($name)
- {
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ setCharset($charset, $connection = null)
-
- /**
- * Set the charset on the current connection
- *
- * @param string charset
- * @param resource connection handle
- *
- * @return true on success, MDB2 Error Object on failure
- */
- function setCharset($charset, $connection = null)
- {
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ function disconnect($force = true)
-
- /**
- * Log out and disconnect from the database.
- *
- * @param boolean $force whether the disconnect should be forced even if the
- * connection is opened persistently
- *
- * @return mixed true on success, false if not connected and error object on error
- *
- * @access public
- */
- function disconnect($force = true)
- {
- $this->connection = 0;
- $this->connected_dsn = array();
- $this->connected_database_name = '';
- $this->opened_persistent = null;
- $this->connected_server_info = '';
- $this->in_transaction = null;
- $this->nested_transaction_counter = null;
- return MDB2_OK;
- }
-
- // }}}
- // {{{ function setDatabase($name)
-
- /**
- * Select a different database
- *
- * @param string name of the database that should be selected
- *
- * @return string name of the database previously connected to
- *
- * @access public
- */
- function setDatabase($name)
- {
- $previous_database_name = (isset($this->database_name)) ? $this->database_name : '';
- $this->database_name = $name;
- if (!empty($this->connected_database_name) && ($this->connected_database_name != $this->database_name)) {
- $this->disconnect(false);
- }
- return $previous_database_name;
- }
-
- // }}}
- // {{{ function getDatabase()
-
- /**
- * Get the current database
- *
- * @return string name of the database
- *
- * @access public
- */
- function getDatabase()
- {
- return $this->database_name;
- }
-
- // }}}
- // {{{ function setDSN($dsn)
-
- /**
- * set the DSN
- *
- * @param mixed DSN string or array
- *
- * @return MDB2_OK
- *
- * @access public
- */
- function setDSN($dsn)
- {
- $dsn_default = $GLOBALS['_MDB2_dsninfo_default'];
- $dsn = MDB2::parseDSN($dsn);
- if (array_key_exists('database', $dsn)) {
- $this->database_name = $dsn['database'];
- unset($dsn['database']);
- }
- $this->dsn = array_merge($dsn_default, $dsn);
- return $this->disconnect(false);
- }
-
- // }}}
- // {{{ function getDSN($type = 'string', $hidepw = false)
-
- /**
- * return the DSN as a string
- *
- * @param string format to return ("array", "string")
- * @param string string to hide the password with
- *
- * @return mixed DSN in the chosen type
- *
- * @access public
- */
- function getDSN($type = 'string', $hidepw = false)
- {
- $dsn = array_merge($GLOBALS['_MDB2_dsninfo_default'], $this->dsn);
- $dsn['phptype'] = $this->phptype;
- $dsn['database'] = $this->database_name;
- if ($hidepw) {
- $dsn['password'] = $hidepw;
- }
- switch ($type) {
- // expand to include all possible options
- case 'string':
- $dsn = $dsn['phptype'].
- ($dsn['dbsyntax'] ? ('('.$dsn['dbsyntax'].')') : '').
- '://'.$dsn['username'].':'.
- $dsn['password'].'@'.$dsn['hostspec'].
- ($dsn['port'] ? (':'.$dsn['port']) : '').
- '/'.$dsn['database'];
- break;
- case 'array':
- default:
- break;
- }
- return $dsn;
- }
-
- // }}}
- // {{{ _isNewLinkSet()
-
- /**
- * Check if the 'new_link' option is set
- *
- * @return boolean
- *
- * @access protected
- */
- function _isNewLinkSet()
- {
- return (isset($this->dsn['new_link'])
- && ($this->dsn['new_link'] === true
- || (is_string($this->dsn['new_link']) && preg_match('/^true$/i', $this->dsn['new_link']))
- || (is_numeric($this->dsn['new_link']) && 0 != (int)$this->dsn['new_link'])
- )
- );
- }
-
- // }}}
- // {{{ function &standaloneQuery($query, $types = null, $is_manip = false)
-
- /**
- * execute a query as database administrator
- *
- * @param string the SQL query
- * @param mixed array that contains the types of the columns in
- * the result set
- * @param bool if the query is a manipulation query
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- */
- function &standaloneQuery($query, $types = null, $is_manip = false)
- {
- $offset = $this->offset;
- $limit = $this->limit;
- $this->offset = $this->limit = 0;
- $query = $this->_modifyQuery($query, $is_manip, $limit, $offset);
-
- $connection = $this->getConnection();
- if (PEAR::isError($connection)) {
- return $connection;
- }
-
- $result =& $this->_doQuery($query, $is_manip, $connection, false);
- if (PEAR::isError($result)) {
- return $result;
- }
-
- if ($is_manip) {
- $affected_rows = $this->_affectedRows($connection, $result);
- return $affected_rows;
- }
- $result =& $this->_wrapResult($result, $types, true, false, $limit, $offset);
- return $result;
- }
-
- // }}}
- // {{{ function _modifyQuery($query, $is_manip, $limit, $offset)
-
- /**
- * Changes a query string for various DBMS specific reasons
- *
- * @param string query to modify
- * @param bool if it is a DML query
- * @param int limit the number of rows
- * @param int start reading from given offset
- *
- * @return string modified query
- *
- * @access protected
- */
- function _modifyQuery($query, $is_manip, $limit, $offset)
- {
- return $query;
- }
-
- // }}}
- // {{{ function &_doQuery($query, $is_manip = false, $connection = null, $database_name = null)
-
- /**
- * Execute a query
- * @param string query
- * @param bool if the query is a manipulation query
- * @param resource connection handle
- * @param string database name
- *
- * @return result or error object
- *
- * @access protected
- */
- function &_doQuery($query, $is_manip = false, $connection = null, $database_name = null)
- {
- $this->last_query = $query;
- $result = $this->debug($query, 'query', array('is_manip' => $is_manip, 'when' => 'pre'));
- if ($result) {
- if (PEAR::isError($result)) {
- return $result;
- }
- $query = $result;
- }
- $err =& $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- return $err;
- }
-
- // }}}
- // {{{ function _affectedRows($connection, $result = null)
-
- /**
- * Returns the number of rows affected
- *
- * @param resource result handle
- * @param resource connection handle
- *
- * @return mixed MDB2 Error Object or the number of rows affected
- *
- * @access private
- */
- function _affectedRows($connection, $result = null)
- {
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ function &exec($query)
-
- /**
- * Execute a manipulation query to the database and return the number of affected rows
- *
- * @param string the SQL query
- *
- * @return mixed number of affected rows on success, a MDB2 error on failure
- *
- * @access public
- */
- function &exec($query)
- {
- $offset = $this->offset;
- $limit = $this->limit;
- $this->offset = $this->limit = 0;
- $query = $this->_modifyQuery($query, true, $limit, $offset);
-
- $connection = $this->getConnection();
- if (PEAR::isError($connection)) {
- return $connection;
- }
-
- $result =& $this->_doQuery($query, true, $connection, $this->database_name);
- if (PEAR::isError($result)) {
- return $result;
- }
-
- $affectedRows = $this->_affectedRows($connection, $result);
- return $affectedRows;
- }
-
- // }}}
- // {{{ function &query($query, $types = null, $result_class = true, $result_wrap_class = false)
-
- /**
- * Send a query to the database and return any results
- *
- * @param string the SQL query
- * @param mixed array that contains the types of the columns in
- * the result set
- * @param mixed string which specifies which result class to use
- * @param mixed string which specifies which class to wrap results in
- *
- * @return mixed an MDB2_Result handle on success, a MDB2 error on failure
- *
- * @access public
- */
- function &query($query, $types = null, $result_class = true, $result_wrap_class = false)
- {
- $offset = $this->offset;
- $limit = $this->limit;
- $this->offset = $this->limit = 0;
- $query = $this->_modifyQuery($query, false, $limit, $offset);
-
- $connection = $this->getConnection();
- if (PEAR::isError($connection)) {
- return $connection;
- }
-
- $result =& $this->_doQuery($query, false, $connection, $this->database_name);
- if (PEAR::isError($result)) {
- return $result;
- }
-
- $result =& $this->_wrapResult($result, $types, $result_class, $result_wrap_class, $limit, $offset);
- return $result;
- }
-
- // }}}
- // {{{ function &_wrapResult($result, $types = array(), $result_class = true, $result_wrap_class = false, $limit = null, $offset = null)
-
- /**
- * wrap a result set into the correct class
- *
- * @param resource result handle
- * @param mixed array that contains the types of the columns in
- * the result set
- * @param mixed string which specifies which result class to use
- * @param mixed string which specifies which class to wrap results in
- * @param string number of rows to select
- * @param string first row to select
- *
- * @return mixed an MDB2_Result, a MDB2 error on failure
- *
- * @access protected
- */
- function &_wrapResult($result, $types = array(), $result_class = true,
- $result_wrap_class = false, $limit = null, $offset = null)
- {
- if ($types === true) {
- if ($this->supports('result_introspection')) {
- $this->loadModule('Reverse', null, true);
- $tableInfo = $this->reverse->tableInfo($result);
- if (PEAR::isError($tableInfo)) {
- return $tableInfo;
- }
- $types = array();
- foreach ($tableInfo as $field) {
- $types[] = $field['mdb2type'];
- }
- } else {
- $types = null;
- }
- }
-
- if ($result_class === true) {
- $result_class = $this->options['result_buffering']
- ? $this->options['buffered_result_class'] : $this->options['result_class'];
- }
-
- if ($result_class) {
- $class_name = sprintf($result_class, $this->phptype);
- if (!MDB2::classExists($class_name)) {
- $err =& $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
- 'result class does not exist '.$class_name, __FUNCTION__);
- return $err;
- }
- $result =& new $class_name($this, $result, $limit, $offset);
- if (!MDB2::isResultCommon($result)) {
- $err =& $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
- 'result class is not extended from MDB2_Result_Common', __FUNCTION__);
- return $err;
- }
- if (!empty($types)) {
- $err = $result->setResultTypes($types);
- if (PEAR::isError($err)) {
- $result->free();
- return $err;
- }
- }
- }
- if ($result_wrap_class === true) {
- $result_wrap_class = $this->options['result_wrap_class'];
- }
- if ($result_wrap_class) {
- if (!MDB2::classExists($result_wrap_class)) {
- $err =& $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
- 'result wrap class does not exist '.$result_wrap_class, __FUNCTION__);
- return $err;
- }
- $result = new $result_wrap_class($result, $this->fetchmode);
- }
- return $result;
- }
-
- // }}}
- // {{{ function getServerVersion($native = false)
-
- /**
- * return version information about the server
- *
- * @param bool determines if the raw version string should be returned
- *
- * @return mixed array with version information or row string
- *
- * @access public
- */
- function getServerVersion($native = false)
- {
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ function setLimit($limit, $offset = null)
-
- /**
- * set the range of the next query
- *
- * @param string number of rows to select
- * @param string first row to select
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- */
- function setLimit($limit, $offset = null)
- {
- if (!$this->supports('limit_queries')) {
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'limit is not supported by this driver', __FUNCTION__);
- }
- $limit = (int)$limit;
- if ($limit < 0) {
- return $this->raiseError(MDB2_ERROR_SYNTAX, null, null,
- 'it was not specified a valid selected range row limit', __FUNCTION__);
- }
- $this->limit = $limit;
- if (!is_null($offset)) {
- $offset = (int)$offset;
- if ($offset < 0) {
- return $this->raiseError(MDB2_ERROR_SYNTAX, null, null,
- 'it was not specified a valid first selected range row', __FUNCTION__);
- }
- $this->offset = $offset;
- }
- return MDB2_OK;
- }
-
- // }}}
- // {{{ function subSelect($query, $type = false)
-
- /**
- * simple subselect emulation: leaves the query untouched for all RDBMS
- * that support subselects
- *
- * @param string the SQL query for the subselect that may only
- * return a column
- * @param string determines type of the field
- *
- * @return string the query
- *
- * @access public
- */
- function subSelect($query, $type = false)
- {
- if ($this->supports('sub_selects') === true) {
- return $query;
- }
-
- if (!$this->supports('sub_selects')) {
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- $col = $this->queryCol($query, $type);
- if (PEAR::isError($col)) {
- return $col;
- }
- if (!is_array($col) || count($col) == 0) {
- return 'NULL';
- }
- if ($type) {
- $this->loadModule('Datatype', null, true);
- return $this->datatype->implodeArray($col, $type);
- }
- return implode(', ', $col);
- }
-
- // }}}
- // {{{ function replace($table, $fields)
-
- /**
- * Execute a SQL REPLACE query. A REPLACE query is identical to a INSERT
- * query, except that if there is already a row in the table with the same
- * key field values, the old row is deleted before the new row is inserted.
- *
- * The REPLACE type of query does not make part of the SQL standards. Since
- * practically only MySQL and SQLite implement it natively, this type of
- * query isemulated through this method for other DBMS using standard types
- * of queries inside a transaction to assure the atomicity of the operation.
- *
- * @param string name of the table on which the REPLACE query will
- * be executed.
- * @param array associative array that describes the fields and the
- * values that will be inserted or updated in the specified table. The
- * indexes of the array are the names of all the fields of the table.
- * The values of the array are also associative arrays that describe
- * the values and other properties of the table fields.
- *
- * Here follows a list of field properties that need to be specified:
- *
- * value
- * Value to be assigned to the specified field. This value may be
- * of specified in database independent type format as this
- * function can perform the necessary datatype conversions.
- *
- * Default: this property is required unless the Null property is
- * set to 1.
- *
- * type
- * Name of the type of the field. Currently, all types MDB2
- * are supported except for clob and blob.
- *
- * Default: no type conversion
- *
- * null
- * bool property that indicates that the value for this field
- * should be set to null.
- *
- * The default value for fields missing in INSERT queries may be
- * specified the definition of a table. Often, the default value
- * is already null, but since the REPLACE may be emulated using
- * an UPDATE query, make sure that all fields of the table are
- * listed in this function argument array.
- *
- * Default: 0
- *
- * key
- * bool property that indicates that this field should be
- * handled as a primary key or at least as part of the compound
- * unique index of the table that will determine the row that will
- * updated if it exists or inserted a new row otherwise.
- *
- * This function will fail if no key field is specified or if the
- * value of a key field is set to null because fields that are
- * part of unique index they may not be null.
- *
- * Default: 0
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- */
- function replace($table, $fields)
- {
- if (!$this->supports('replace')) {
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'replace query is not supported', __FUNCTION__);
- }
- $count = count($fields);
- $condition = $values = array();
- for ($colnum = 0, reset($fields); $colnum < $count; next($fields), $colnum++) {
- $name = key($fields);
- if (isset($fields[$name]['null']) && $fields[$name]['null']) {
- $value = 'NULL';
- } else {
- $type = isset($fields[$name]['type']) ? $fields[$name]['type'] : null;
- $value = $this->quote($fields[$name]['value'], $type);
- }
- $values[$name] = $value;
- if (isset($fields[$name]['key']) && $fields[$name]['key']) {
- if ($value === 'NULL') {
- return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null,
- 'key value '.$name.' may not be NULL', __FUNCTION__);
- }
- $condition[] = $this->quoteIdentifier($name, true) . '=' . $value;
- }
- }
- if (empty($condition)) {
- return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null,
- 'not specified which fields are keys', __FUNCTION__);
- }
-
- $result = null;
- $in_transaction = $this->in_transaction;
- if (!$in_transaction && PEAR::isError($result = $this->beginTransaction())) {
- return $result;
- }
-
- $connection = $this->getConnection();
- if (PEAR::isError($connection)) {
- return $connection;
- }
-
- $condition = ' WHERE '.implode(' AND ', $condition);
- $query = 'DELETE FROM ' . $this->quoteIdentifier($table, true) . $condition;
- $result =& $this->_doQuery($query, true, $connection);
- if (!PEAR::isError($result)) {
- $affected_rows = $this->_affectedRows($connection, $result);
- $insert = '';
- foreach ($values as $key => $value) {
- $insert .= ($insert?', ':'') . $this->quoteIdentifier($key, true);
- }
- $values = implode(', ', $values);
- $query = 'INSERT INTO '. $this->quoteIdentifier($table, true) . "($insert) VALUES ($values)";
- $result =& $this->_doQuery($query, true, $connection);
- if (!PEAR::isError($result)) {
- $affected_rows += $this->_affectedRows($connection, $result);;
- }
- }
-
- if (!$in_transaction) {
- if (PEAR::isError($result)) {
- $this->rollback();
- } else {
- $result = $this->commit();
- }
- }
-
- if (PEAR::isError($result)) {
- return $result;
- }
-
- return $affected_rows;
- }
-
- // }}}
- // {{{ function &prepare($query, $types = null, $result_types = null, $lobs = array())
-
- /**
- * Prepares a query for multiple execution with execute().
- * With some database backends, this is emulated.
- * prepare() requires a generic query as string like
- * 'INSERT INTO numbers VALUES(?,?)' or
- * 'INSERT INTO numbers VALUES(:foo,:bar)'.
- * The ? and :name and are placeholders which can be set using
- * bindParam() and the query can be sent off using the execute() method.
- * The allowed format for :name can be set with the 'bindname_format' option.
- *
- * @param string the query to prepare
- * @param mixed array that contains the types of the placeholders
- * @param mixed array that contains the types of the columns in
- * the result set or MDB2_PREPARE_RESULT, if set to
- * MDB2_PREPARE_MANIP the query is handled as a manipulation query
- * @param mixed key (field) value (parameter) pair for all lob placeholders
- *
- * @return mixed resource handle for the prepared query on success,
- * a MDB2 error on failure
- *
- * @access public
- * @see bindParam, execute
- */
- function &prepare($query, $types = null, $result_types = null, $lobs = array())
- {
- $is_manip = ($result_types === MDB2_PREPARE_MANIP);
- $offset = $this->offset;
- $limit = $this->limit;
- $this->offset = $this->limit = 0;
- $result = $this->debug($query, __FUNCTION__, array('is_manip' => $is_manip, 'when' => 'pre'));
- if ($result) {
- if (PEAR::isError($result)) {
- return $result;
- }
- $query = $result;
- }
- $placeholder_type_guess = $placeholder_type = null;
- $question = '?';
- $colon = ':';
- $positions = array();
- $position = 0;
- while ($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];
- }
-
- $new_pos = $this->_skipDelimitedStrings($query, $position, $p_position);
- if (PEAR::isError($new_pos)) {
- return $new_pos;
- }
- if ($new_pos != $position) {
- $position = $new_pos;
- continue; //evaluate again starting from the new position
- }
-
- if ($query[$position] == $placeholder_type_guess) {
- if (is_null($placeholder_type)) {
- $placeholder_type = $query[$p_position];
- $question = $colon = $placeholder_type;
- if (!empty($types) && is_array($types)) {
- if ($placeholder_type == ':') {
- if (is_int(key($types))) {
- $types_tmp = $types;
- $types = array();
- $count = -1;
- }
- } else {
- $types = array_values($types);
- }
- }
- }
- if ($placeholder_type == ':') {
- $regexp = '/^.{'.($position+1).'}('.$this->options['bindname_format'].').*$/s';
- $parameter = preg_replace($regexp, '\\1', $query);
- if ($parameter === '') {
- $err =& $this->raiseError(MDB2_ERROR_SYNTAX, null, null,
- 'named parameter name must match "bindname_format" option', __FUNCTION__);
- return $err;
- }
- $positions[$p_position] = $parameter;
- $query = substr_replace($query, '?', $position, strlen($parameter)+1);
- // use parameter name in type array
- if (isset($count) && isset($types_tmp[++$count])) {
- $types[$parameter] = $types_tmp[$count];
- }
- } else {
- $positions[$p_position] = count($positions);
- }
- $position = $p_position + 1;
- } else {
- $position = $p_position;
- }
- }
- $class_name = 'MDB2_Statement_'.$this->phptype;
- $statement = null;
- $obj = new $class_name($this, $statement, $positions, $query, $types, $result_types, $is_manip, $limit, $offset);
- $this->debug($query, __FUNCTION__, array('is_manip' => $is_manip, 'when' => 'post', 'result' => $obj));
- return $obj;
- }
-
- // }}}
- // {{{ function _skipDelimitedStrings($query, $position, $p_position)
-
- /**
- * Utility method, used by prepare() to avoid replacing placeholders within delimited strings.
- * Check if the placeholder is contained within a delimited string.
- * If so, skip it and advance the position, otherwise return the current position,
- * which is valid
- *
- * @param string $query
- * @param integer $position current string cursor position
- * @param integer $p_position placeholder position
- *
- * @return mixed integer $new_position on success
- * MDB2_Error on failure
- *
- * @access protected
- */
- function _skipDelimitedStrings($query, $position, $p_position)
- {
- $ignores = $this->string_quoting;
- $ignores[] = $this->identifier_quoting;
- $ignores = array_merge($ignores, $this->sql_comments);
-
- foreach ($ignores as $ignore) {
- if (!empty($ignore['start'])) {
- if (is_int($start_quote = strpos($query, $ignore['start'], $position)) && $start_quote < $p_position) {
- $end_quote = $start_quote;
- do {
- if (!is_int($end_quote = strpos($query, $ignore['end'], $end_quote + 1))) {
- if ($ignore['end'] === "\n") {
- $end_quote = strlen($query) - 1;
- } else {
- $err =& $this->raiseError(MDB2_ERROR_SYNTAX, null, null,
- 'query with an unterminated text string specified', __FUNCTION__);
- return $err;
- }
- }
- } while ($ignore['escape']
- && $end_quote-1 != $start_quote
- && $query[($end_quote - 1)] == $ignore['escape']
- && ( $ignore['escape_pattern'] !== $ignore['escape']
- || $query[($end_quote - 2)] != $ignore['escape'])
- );
-
- $position = $end_quote + 1;
- return $position;
- }
- }
- }
- return $position;
- }
-
- // }}}
- // {{{ function quote($value, $type = null, $quote = true)
-
- /**
- * Convert a text value into a DBMS specific format that is suitable to
- * compose query statements.
- *
- * @param string text string value that is intended to be converted.
- * @param string type to which the value should be converted to
- * @param bool quote
- * @param bool escape wildcards
- *
- * @return string text string that represents the given argument value in
- * a DBMS specific format.
- *
- * @access public
- */
- function quote($value, $type = null, $quote = true, $escape_wildcards = false)
- {
- $result = $this->loadModule('Datatype', null, true);
- if (PEAR::isError($result)) {
- return $result;
- }
-
- return $this->datatype->quote($value, $type, $quote, $escape_wildcards);
- }
-
- // }}}
- // {{{ function getDeclaration($type, $name, $field)
-
- /**
- * Obtain DBMS specific SQL code portion needed to declare
- * of the given type
- *
- * @param string type to which the value should be converted to
- * @param string name the field to be declared.
- * @param string definition of the field
- *
- * @return string DBMS specific SQL code portion that should be used to
- * declare the specified field.
- *
- * @access public
- */
- function getDeclaration($type, $name, $field)
- {
- $result = $this->loadModule('Datatype', null, true);
- if (PEAR::isError($result)) {
- return $result;
- }
- return $this->datatype->getDeclaration($type, $name, $field);
- }
-
- // }}}
- // {{{ function compareDefinition($current, $previous)
-
- /**
- * Obtain an array of changes that may need to applied
- *
- * @param array new definition
- * @param array old definition
- *
- * @return array containing all changes that will need to be applied
- *
- * @access public
- */
- function compareDefinition($current, $previous)
- {
- $result = $this->loadModule('Datatype', null, true);
- if (PEAR::isError($result)) {
- return $result;
- }
- return $this->datatype->compareDefinition($current, $previous);
- }
-
- // }}}
- // {{{ function supports($feature)
-
- /**
- * Tell whether a DB implementation or its backend extension
- * supports a given feature.
- *
- * @param string name of the feature (see the MDB2 class doc)
- *
- * @return bool|string if this DB implementation supports a given feature
- * false means no, true means native,
- * 'emulated' means emulated
- *
- * @access public
- */
- function supports($feature)
- {
- if (array_key_exists($feature, $this->supported)) {
- return $this->supported[$feature];
- }
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- "unknown support feature $feature", __FUNCTION__);
- }
-
- // }}}
- // {{{ function getSequenceName($sqn)
-
- /**
- * adds sequence name formatting to a sequence name
- *
- * @param string name of the sequence
- *
- * @return string formatted sequence name
- *
- * @access public
- */
- function getSequenceName($sqn)
- {
- return sprintf($this->options['seqname_format'],
- preg_replace('/[^a-z0-9_\-\$.]/i', '_', $sqn));
- }
-
- // }}}
- // {{{ function getIndexName($idx)
-
- /**
- * adds index name formatting to a index name
- *
- * @param string name of the index
- *
- * @return string formatted index name
- *
- * @access public
- */
- function getIndexName($idx)
- {
- return sprintf($this->options['idxname_format'],
- preg_replace('/[^a-z0-9_\-\$.]/i', '_', $idx));
- }
-
- // }}}
- // {{{ function nextID($seq_name, $ondemand = true)
-
- /**
- * Returns the next free id of a sequence
- *
- * @param string name of the sequence
- * @param bool when true missing sequences are automatic created
- *
- * @return mixed MDB2 Error Object or id
- *
- * @access public
- */
- function nextID($seq_name, $ondemand = true)
- {
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ function lastInsertID($table = null, $field = null)
-
- /**
- * Returns the autoincrement ID if supported or $id or fetches the current
- * ID in a sequence called: $table.(empty($field) ? '' : '_'.$field)
- *
- * @param string name of the table into which a new row was inserted
- * @param string name of the field into which a new row was inserted
- *
- * @return mixed MDB2 Error Object or id
- *
- * @access public
- */
- function lastInsertID($table = null, $field = null)
- {
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ function currID($seq_name)
-
- /**
- * Returns the current id of a sequence
- *
- * @param string name of the sequence
- *
- * @return mixed MDB2 Error Object or id
- *
- * @access public
- */
- function currID($seq_name)
- {
- $this->warnings[] = 'database does not support getting current
- sequence value, the sequence value was incremented';
- return $this->nextID($seq_name);
- }
-
- // }}}
- // {{{ function queryOne($query, $type = null, $colnum = 0)
-
- /**
- * Execute the specified query, fetch the value from the first column of
- * the first row of the result set and then frees
- * the result set.
- *
- * @param string $query the SELECT query statement to be executed.
- * @param string $type optional argument that specifies the expected
- * datatype of the result set field, so that an eventual
- * conversion may be performed. The default datatype is
- * text, meaning that no conversion is performed
- * @param mixed $colnum the column number (or name) to fetch
- *
- * @return mixed MDB2_OK or field value on success, a MDB2 error on failure
- *
- * @access public
- */
- function queryOne($query, $type = null, $colnum = 0)
- {
- $result = $this->query($query, $type);
- if (!MDB2::isResultCommon($result)) {
- return $result;
- }
-
- $one = $result->fetchOne($colnum);
- $result->free();
- return $one;
- }
-
- // }}}
- // {{{ function queryRow($query, $types = null, $fetchmode = MDB2_FETCHMODE_DEFAULT)
-
- /**
- * Execute the specified query, fetch the values from the first
- * row of the result set into an array and then frees
- * the result set.
- *
- * @param string the SELECT query statement to be executed.
- * @param array optional array argument that specifies a list of
- * expected datatypes of the result set columns, so that the eventual
- * conversions may be performed. The default list of datatypes is
- * empty, meaning that no conversion is performed.
- * @param int how the array data should be indexed
- *
- * @return mixed MDB2_OK or data array on success, a MDB2 error on failure
- *
- * @access public
- */
- function queryRow($query, $types = null, $fetchmode = MDB2_FETCHMODE_DEFAULT)
- {
- $result = $this->query($query, $types);
- if (!MDB2::isResultCommon($result)) {
- return $result;
- }
-
- $row = $result->fetchRow($fetchmode);
- $result->free();
- return $row;
- }
-
- // }}}
- // {{{ function queryCol($query, $type = null, $colnum = 0)
-
- /**
- * Execute the specified query, fetch the value from the first column of
- * each row of the result set into an array and then frees the result set.
- *
- * @param string $query the SELECT query statement to be executed.
- * @param string $type optional argument that specifies the expected
- * datatype of the result set field, so that an eventual
- * conversion may be performed. The default datatype is text,
- * meaning that no conversion is performed
- * @param mixed $colnum the column number (or name) to fetch
- *
- * @return mixed MDB2_OK or data array on success, a MDB2 error on failure
- * @access public
- */
- function queryCol($query, $type = null, $colnum = 0)
- {
- $result = $this->query($query, $type);
- if (!MDB2::isResultCommon($result)) {
- return $result;
- }
-
- $col = $result->fetchCol($colnum);
- $result->free();
- return $col;
- }
-
- // }}}
- // {{{ function queryAll($query, $types = null, $fetchmode = MDB2_FETCHMODE_DEFAULT, $rekey = false, $force_array = false, $group = false)
-
- /**
- * Execute the specified query, fetch all the rows of the result set into
- * a two dimensional array and then frees the result set.
- *
- * @param string the SELECT query statement to be executed.
- * @param array optional array argument that specifies a list of
- * expected datatypes of the result set columns, so that the eventual
- * conversions may be performed. The default list of datatypes is
- * empty, meaning that no conversion is performed.
- * @param int how the array data should be indexed
- * @param bool if set to true, the $all will have the first
- * column as its first dimension
- * @param bool used only when the query returns exactly
- * two columns. If true, the values of the returned array will be
- * one-element arrays instead of scalars.
- * @param bool if true, the values of the returned array is
- * wrapped in another array. If the same key value (in the first
- * column) repeats itself, the values will be appended to this array
- * instead of overwriting the existing values.
- *
- * @return mixed MDB2_OK or data array on success, a MDB2 error on failure
- *
- * @access public
- */
- function queryAll($query, $types = null, $fetchmode = MDB2_FETCHMODE_DEFAULT,
- $rekey = false, $force_array = false, $group = false)
- {
- $result = $this->query($query, $types);
- if (!MDB2::isResultCommon($result)) {
- return $result;
- }
-
- $all = $result->fetchAll($fetchmode, $rekey, $force_array, $group);
- $result->free();
- return $all;
- }
-
- // }}}
-}
-
-// }}}
-// {{{ class MDB2_Result
-
-/**
- * The dummy class that all user space result classes should extend from
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Result
-{
-}
-
-// }}}
-// {{{ class MDB2_Result_Common extends MDB2_Result
-
-/**
- * The common result class for MDB2 result objects
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Result_Common extends MDB2_Result
-{
- // {{{ Variables (Properties)
-
- var $db;
- var $result;
- var $rownum = -1;
- var $types = array();
- var $values = array();
- var $offset;
- var $offset_count = 0;
- var $limit;
- var $column_names;
-
- // }}}
- // {{{ constructor: function __construct(&$db, &$result, $limit = 0, $offset = 0)
-
- /**
- * Constructor
- */
- function __construct(&$db, &$result, $limit = 0, $offset = 0)
- {
- $this->db =& $db;
- $this->result =& $result;
- $this->offset = $offset;
- $this->limit = max(0, $limit - 1);
- }
-
- // }}}
- // {{{ function MDB2_Result_Common(&$db, &$result, $limit = 0, $offset = 0)
-
- /**
- * PHP 4 Constructor
- */
- function MDB2_Result_Common(&$db, &$result, $limit = 0, $offset = 0)
- {
- $this->__construct($db, $result, $limit, $offset);
- }
-
- // }}}
- // {{{ function setResultTypes($types)
-
- /**
- * Define the list of types to be associated with the columns of a given
- * result set.
- *
- * This function may be called before invoking fetchRow(), fetchOne(),
- * fetchCol() and fetchAll() so that the necessary data type
- * conversions are performed on the data to be retrieved by them. If this
- * function is not called, the type of all result set columns is assumed
- * to be text, thus leading to not perform any conversions.
- *
- * @param array variable that lists the
- * data types to be expected in the result set columns. If this array
- * contains less types than the number of columns that are returned
- * in the result set, the remaining columns are assumed to be of the
- * type text. Currently, the types clob and blob are not fully
- * supported.
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- */
- function setResultTypes($types)
- {
- $load = $this->db->loadModule('Datatype', null, true);
- if (PEAR::isError($load)) {
- return $load;
- }
- $types = $this->db->datatype->checkResultTypes($types);
- if (PEAR::isError($types)) {
- return $types;
- }
- $this->types = $types;
- return MDB2_OK;
- }
-
- // }}}
- // {{{ function seek($rownum = 0)
-
- /**
- * Seek to a specific row in a result set
- *
- * @param int 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)
- {
- $target_rownum = $rownum - 1;
- if ($this->rownum > $target_rownum) {
- return $this->db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'seeking to previous rows not implemented', __FUNCTION__);
- }
- while ($this->rownum < $target_rownum) {
- $this->fetchRow();
- }
- return MDB2_OK;
- }
-
- // }}}
- // {{{ function &fetchRow($fetchmode = MDB2_FETCHMODE_DEFAULT, $rownum = null)
-
- /**
- * Fetch and return a row of data
- *
- * @param int how the array data should be indexed
- * @param int number of the row where the data can be found
- *
- * @return int data array on success, a MDB2 error on failure
- *
- * @access public
- */
- function &fetchRow($fetchmode = MDB2_FETCHMODE_DEFAULT, $rownum = null)
- {
- $err =& $this->db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- return $err;
- }
-
- // }}}
- // {{{ function fetchOne($colnum = 0)
-
- /**
- * fetch single column from the next row from a result set
- *
- * @param int|string the column number (or name) to fetch
- * @param int number of the row where the data can be found
- *
- * @return string data on success, a MDB2 error on failure
- * @access public
- */
- function fetchOne($colnum = 0, $rownum = null)
- {
- $fetchmode = is_numeric($colnum) ? MDB2_FETCHMODE_ORDERED : MDB2_FETCHMODE_ASSOC;
- $row = $this->fetchRow($fetchmode, $rownum);
- if (!is_array($row) || PEAR::isError($row)) {
- return $row;
- }
- if (!array_key_exists($colnum, $row)) {
- return $this->db->raiseError(MDB2_ERROR_TRUNCATED, null, null,
- 'column is not defined in the result set: '.$colnum, __FUNCTION__);
- }
- return $row[$colnum];
- }
-
- // }}}
- // {{{ function fetchCol($colnum = 0)
-
- /**
- * Fetch and return a column from the current row pointer position
- *
- * @param int|string the column number (or name) to fetch
- *
- * @return mixed data array on success, a MDB2 error on failure
- * @access public
- */
- function fetchCol($colnum = 0)
- {
- $column = array();
- $fetchmode = is_numeric($colnum) ? MDB2_FETCHMODE_ORDERED : MDB2_FETCHMODE_ASSOC;
- $row = $this->fetchRow($fetchmode);
- if (is_array($row)) {
- if (!array_key_exists($colnum, $row)) {
- return $this->db->raiseError(MDB2_ERROR_TRUNCATED, null, null,
- 'column is not defined in the result set: '.$colnum, __FUNCTION__);
- }
- do {
- $column[] = $row[$colnum];
- } while (is_array($row = $this->fetchRow($fetchmode)));
- }
- if (PEAR::isError($row)) {
- return $row;
- }
- return $column;
- }
-
- // }}}
- // {{{ function fetchAll($fetchmode = MDB2_FETCHMODE_DEFAULT, $rekey = false, $force_array = false, $group = false)
-
- /**
- * Fetch and return all rows from the current row pointer position
- *
- * @param int $fetchmode the fetch mode to use:
- * + MDB2_FETCHMODE_ORDERED
- * + MDB2_FETCHMODE_ASSOC
- * + MDB2_FETCHMODE_ORDERED | MDB2_FETCHMODE_FLIPPED
- * + MDB2_FETCHMODE_ASSOC | MDB2_FETCHMODE_FLIPPED
- * @param bool if set to true, the $all will have the first
- * column as its first dimension
- * @param bool used only when the query returns exactly
- * two columns. If true, the values of the returned array will be
- * one-element arrays instead of scalars.
- * @param bool if true, the values of the returned array is
- * wrapped in another array. If the same key value (in the first
- * column) repeats itself, the values will be appended to this array
- * instead of overwriting the existing values.
- *
- * @return mixed data array on success, a MDB2 error on failure
- *
- * @access public
- * @see getAssoc()
- */
- function fetchAll($fetchmode = MDB2_FETCHMODE_DEFAULT, $rekey = false,
- $force_array = false, $group = false)
- {
- $all = array();
- $row = $this->fetchRow($fetchmode);
- if (PEAR::isError($row)) {
- return $row;
- } elseif (!$row) {
- return $all;
- }
-
- $shift_array = $rekey ? false : null;
- if (!is_null($shift_array)) {
- if (is_object($row)) {
- $colnum = count(get_object_vars($row));
- } else {
- $colnum = count($row);
- }
- if ($colnum < 2) {
- return $this->db->raiseError(MDB2_ERROR_TRUNCATED, null, null,
- 'rekey feature requires atleast 2 column', __FUNCTION__);
- }
- $shift_array = (!$force_array && $colnum == 2);
- }
-
- if ($rekey) {
- do {
- if (is_object($row)) {
- $arr = get_object_vars($row);
- $key = reset($arr);
- unset($row->{$key});
- } else {
- if ($fetchmode & MDB2_FETCHMODE_ASSOC) {
- $key = reset($row);
- unset($row[key($row)]);
- } else {
- $key = array_shift($row);
- }
- if ($shift_array) {
- $row = array_shift($row);
- }
- }
- if ($group) {
- $all[$key][] = $row;
- } else {
- $all[$key] = $row;
- }
- } while (($row = $this->fetchRow($fetchmode)));
- } elseif ($fetchmode & MDB2_FETCHMODE_FLIPPED) {
- do {
- foreach ($row as $key => $val) {
- $all[$key][] = $val;
- }
- } while (($row = $this->fetchRow($fetchmode)));
- } else {
- do {
- $all[] = $row;
- } while (($row = $this->fetchRow($fetchmode)));
- }
-
- return $all;
- }
-
- // }}}
- // {{{ function rowCount()
- /**
- * Returns the actual row number that was last fetched (count from 0)
- * @return int
- *
- * @access public
- */
- function rowCount()
- {
- return $this->rownum + 1;
- }
-
- // }}}
- // {{{ function numRows()
-
- /**
- * Returns the number of rows in a result object
- *
- * @return mixed MDB2 Error Object or the number of rows
- *
- * @access public
- */
- function numRows()
- {
- return $this->db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ function nextResult()
-
- /**
- * Move the internal result pointer to the next available result
- *
- * @return true on success, false if there is no more result set or an error object on failure
- *
- * @access public
- */
- function nextResult()
- {
- return $this->db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ function getColumnNames()
-
- /**
- * Retrieve the names of columns returned by the DBMS in a query result or
- * from the cache.
- *
- * @param bool If set to true the values are the column names,
- * otherwise the names of the columns are the keys.
- * @return mixed Array variable that holds the names of columns or an
- * MDB2 error on failure.
- * Some DBMS may not return any columns when the result set
- * does not contain any rows.
- *
- * @access public
- */
- function getColumnNames($flip = false)
- {
- if (!isset($this->column_names)) {
- $result = $this->_getColumnNames();
- if (PEAR::isError($result)) {
- return $result;
- }
- $this->column_names = $result;
- }
- if ($flip) {
- return array_flip($this->column_names);
- }
- return $this->column_names;
- }
-
- // }}}
- // {{{ function _getColumnNames()
-
- /**
- * Retrieve the names of columns returned by the DBMS in a query result.
- *
- * @return mixed Array variable that holds the names of columns as keys
- * or an MDB2 error on failure.
- * Some DBMS may not return any columns when the result set
- * does not contain any rows.
- *
- * @access private
- */
- function _getColumnNames()
- {
- return $this->db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ function 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()
- {
- return $this->db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ function getResource()
-
- /**
- * return the resource associated with the result object
- *
- * @return resource
- *
- * @access public
- */
- function getResource()
- {
- return $this->result;
- }
-
- // }}}
- // {{{ function bindColumn($column, &$value, $type = null)
-
- /**
- * Set bind variable to a column.
- *
- * @param int column number or name
- * @param mixed variable reference
- * @param string specifies the type of the field
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- */
- function bindColumn($column, &$value, $type = null)
- {
- if (!is_numeric($column)) {
- $column_names = $this->getColumnNames();
- if ($this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
- if ($this->db->options['field_case'] == CASE_LOWER) {
- $column = strtolower($column);
- } else {
- $column = strtoupper($column);
- }
- }
- $column = $column_names[$column];
- }
- $this->values[$column] =& $value;
- if (!is_null($type)) {
- $this->types[$column] = $type;
- }
- return MDB2_OK;
- }
-
- // }}}
- // {{{ function _assignBindColumns($row)
-
- /**
- * Bind a variable to a value in the result row.
- *
- * @param array row data
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access private
- */
- function _assignBindColumns($row)
- {
- $row = array_values($row);
- foreach ($row as $column => $value) {
- if (array_key_exists($column, $this->values)) {
- $this->values[$column] = $value;
- }
- }
- return MDB2_OK;
- }
-
- // }}}
- // {{{ function free()
-
- /**
- * Free the internal resources associated with result.
- *
- * @return bool true on success, false if result is invalid
- *
- * @access public
- */
- function free()
- {
- $this->result = false;
- return MDB2_OK;
- }
-
- // }}}
-}
-
-// }}}
-// {{{ class MDB2_Row
-
-/**
- * The simple class that accepts row data as an array
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Row
-{
- // {{{ constructor: function __construct(&$row)
-
- /**
- * constructor
- *
- * @param resource row data as array
- */
- function __construct(&$row)
- {
- foreach ($row as $key => $value) {
- $this->$key = &$row[$key];
- }
- }
-
- // }}}
- // {{{ function MDB2_Row(&$row)
-
- /**
- * PHP 4 Constructor
- *
- * @param resource row data as array
- */
- function MDB2_Row(&$row)
- {
- $this->__construct($row);
- }
-
- // }}}
-}
-
-// }}}
-// {{{ class MDB2_Statement_Common
-
-/**
- * The common statement class for MDB2 statement objects
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Statement_Common
-{
- // {{{ Variables (Properties)
-
- var $db;
- var $statement;
- var $query;
- var $result_types;
- var $types;
- var $values = array();
- var $limit;
- var $offset;
- var $is_manip;
-
- // }}}
- // {{{ constructor: function __construct(&$db, &$statement, $positions, $query, $types, $result_types, $is_manip = false, $limit = null, $offset = null)
-
- /**
- * Constructor
- */
- function __construct(&$db, &$statement, $positions, $query, $types, $result_types, $is_manip = false, $limit = null, $offset = null)
- {
- $this->db =& $db;
- $this->statement =& $statement;
- $this->positions = $positions;
- $this->query = $query;
- $this->types = (array)$types;
- $this->result_types = (array)$result_types;
- $this->limit = $limit;
- $this->is_manip = $is_manip;
- $this->offset = $offset;
- }
-
- // }}}
- // {{{ function MDB2_Statement_Common(&$db, &$statement, $positions, $query, $types, $result_types, $is_manip = false, $limit = null, $offset = null)
-
- /**
- * PHP 4 Constructor
- */
- function MDB2_Statement_Common(&$db, &$statement, $positions, $query, $types, $result_types, $is_manip = false, $limit = null, $offset = null)
- {
- $this->__construct($db, $statement, $positions, $query, $types, $result_types, $is_manip, $limit, $offset);
- }
-
- // }}}
- // {{{ function bindValue($parameter, &$value, $type = null)
-
- /**
- * Set the value of a parameter of a prepared query.
- *
- * @param int the order number of the parameter in the query
- * statement. The order number of the first parameter is 1.
- * @param mixed value that is meant to be assigned to specified
- * parameter. The type of the value depends on the $type argument.
- * @param string specifies the type of the field
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- */
- function bindValue($parameter, $value, $type = null)
- {
- if (!is_numeric($parameter)) {
- $parameter = preg_replace('/^:(.*)$/', '\\1', $parameter);
- }
- if (!in_array($parameter, $this->positions)) {
- return $this->db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
- 'Unable to bind to missing placeholder: '.$parameter, __FUNCTION__);
- }
- $this->values[$parameter] = $value;
- if (!is_null($type)) {
- $this->types[$parameter] = $type;
- }
- return MDB2_OK;
- }
-
- // }}}
- // {{{ function bindValueArray($values, $types = null)
-
- /**
- * Set the values of multiple a parameter of a prepared query in bulk.
- *
- * @param array specifies all necessary information
- * for bindValue() the array elements must use keys corresponding to
- * the number of the position of the parameter.
- * @param array specifies the types of the fields
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- * @see bindParam()
- */
- function bindValueArray($values, $types = null)
- {
- $types = is_array($types) ? array_values($types) : array_fill(0, count($values), null);
- $parameters = array_keys($values);
- foreach ($parameters as $key => $parameter) {
- $this->db->pushErrorHandling(PEAR_ERROR_RETURN);
- $this->db->expectError(MDB2_ERROR_NOT_FOUND);
- $err = $this->bindValue($parameter, $values[$parameter], $types[$key]);
- $this->db->popExpect();
- $this->db->popErrorHandling();
- if (PEAR::isError($err)) {
- if ($err->getCode() == MDB2_ERROR_NOT_FOUND) {
- //ignore (extra value for missing placeholder)
- continue;
- }
- return $err;
- }
- }
- return MDB2_OK;
- }
-
- // }}}
- // {{{ function bindParam($parameter, &$value, $type = null)
-
- /**
- * Bind a variable to a parameter of a prepared query.
- *
- * @param int the order number of the parameter in the query
- * statement. The order number of the first parameter is 1.
- * @param mixed variable that is meant to be bound to specified
- * parameter. The type of the value depends on the $type argument.
- * @param string specifies the type of the field
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- */
- function bindParam($parameter, &$value, $type = null)
- {
- if (!is_numeric($parameter)) {
- $parameter = preg_replace('/^:(.*)$/', '\\1', $parameter);
- }
- if (!in_array($parameter, $this->positions)) {
- return $this->db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
- 'Unable to bind to missing placeholder: '.$parameter, __FUNCTION__);
- }
- $this->values[$parameter] =& $value;
- if (!is_null($type)) {
- $this->types[$parameter] = $type;
- }
- return MDB2_OK;
- }
-
- // }}}
- // {{{ function bindParamArray(&$values, $types = null)
-
- /**
- * Bind the variables of multiple a parameter of a prepared query in bulk.
- *
- * @param array specifies all necessary information
- * for bindParam() the array elements must use keys corresponding to
- * the number of the position of the parameter.
- * @param array specifies the types of the fields
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- * @see bindParam()
- */
- function bindParamArray(&$values, $types = null)
- {
- $types = is_array($types) ? array_values($types) : array_fill(0, count($values), null);
- $parameters = array_keys($values);
- foreach ($parameters as $key => $parameter) {
- $err = $this->bindParam($parameter, $values[$parameter], $types[$key]);
- if (PEAR::isError($err)) {
- return $err;
- }
- }
- return MDB2_OK;
- }
-
- // }}}
- // {{{ function &execute($values = null, $result_class = true, $result_wrap_class = false)
-
- /**
- * Execute a prepared query statement.
- *
- * @param array specifies all necessary information
- * for bindParam() the array elements must use keys corresponding
- * to the number of the position of the parameter.
- * @param mixed specifies which result class to use
- * @param mixed specifies which class to wrap results in
- *
- * @return mixed MDB2_Result or integer (affected rows) on success,
- * a MDB2 error on failure
- * @access public
- */
- function &execute($values = null, $result_class = true, $result_wrap_class = false)
- {
- if (is_null($this->positions)) {
- return $this->db->raiseError(MDB2_ERROR, null, null,
- 'Prepared statement has already been freed', __FUNCTION__);
- }
-
- $values = (array)$values;
- if (!empty($values)) {
- $err = $this->bindValueArray($values);
- if (PEAR::isError($err)) {
- return $this->db->raiseError(MDB2_ERROR, null, null,
- 'Binding Values failed with message: ' . $err->getMessage(), __FUNCTION__);
- }
- }
- $result =& $this->_execute($result_class, $result_wrap_class);
- return $result;
- }
-
- // }}}
- // {{{ function &_execute($result_class = true, $result_wrap_class = false)
-
- /**
- * Execute a prepared query statement helper method.
- *
- * @param mixed specifies which result class to use
- * @param mixed specifies which class to wrap results in
- *
- * @return mixed MDB2_Result or integer (affected rows) on success,
- * a MDB2 error on failure
- * @access private
- */
- function &_execute($result_class = true, $result_wrap_class = false)
- {
- $this->last_query = $this->query;
- $query = '';
- $last_position = 0;
- foreach ($this->positions as $current_position => $parameter) {
- if (!array_key_exists($parameter, $this->values)) {
- return $this->db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
- 'Unable to bind to missing placeholder: '.$parameter, __FUNCTION__);
- }
- $value = $this->values[$parameter];
- $query.= substr($this->query, $last_position, $current_position - $last_position);
- if (!isset($value)) {
- $value_quoted = 'NULL';
- } else {
- $type = !empty($this->types[$parameter]) ? $this->types[$parameter] : null;
- $value_quoted = $this->db->quote($value, $type);
- if (PEAR::isError($value_quoted)) {
- return $value_quoted;
- }
- }
- $query.= $value_quoted;
- $last_position = $current_position + 1;
- }
- $query.= substr($this->query, $last_position);
-
- $this->db->offset = $this->offset;
- $this->db->limit = $this->limit;
- if ($this->is_manip) {
- $result = $this->db->exec($query);
- } else {
- $result =& $this->db->query($query, $this->result_types, $result_class, $result_wrap_class);
- }
- return $result;
- }
-
- // }}}
- // {{{ function free()
-
- /**
- * Release resources allocated for the specified prepared query.
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- */
- function free()
- {
- if (is_null($this->positions)) {
- return $this->db->raiseError(MDB2_ERROR, null, null,
- 'Prepared statement has already been freed', __FUNCTION__);
- }
-
- $this->statement = null;
- $this->positions = null;
- $this->query = null;
- $this->types = null;
- $this->result_types = null;
- $this->limit = null;
- $this->is_manip = null;
- $this->offset = null;
- $this->values = null;
-
- return MDB2_OK;
- }
-
- // }}}
-}
-
-// }}}
-// {{{ class MDB2_Module_Common
-
-/**
- * The common modules class for MDB2 module objects
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Module_Common
-{
- // {{{ Variables (Properties)
-
- /**
- * contains the key to the global MDB2 instance array of the associated
- * MDB2 instance
- *
- * @var int
- * @access protected
- */
- var $db_index;
-
- // }}}
- // {{{ constructor: function __construct($db_index)
-
- /**
- * Constructor
- */
- function __construct($db_index)
- {
- $this->db_index = $db_index;
- }
-
- // }}}
- // {{{ function MDB2_Module_Common($db_index)
-
- /**
- * PHP 4 Constructor
- */
- function MDB2_Module_Common($db_index)
- {
- $this->__construct($db_index);
- }
-
- // }}}
- // {{{ function &getDBInstance()
-
- /**
- * Get the instance of MDB2 associated with the module instance
- *
- * @return object MDB2 instance or a MDB2 error on failure
- *
- * @access public
- */
- function &getDBInstance()
- {
- if (isset($GLOBALS['_MDB2_databases'][$this->db_index])) {
- $result =& $GLOBALS['_MDB2_databases'][$this->db_index];
- } else {
- $result =& MDB2::raiseError(MDB2_ERROR_NOT_FOUND, null, null,
- 'could not find MDB2 instance');
- }
- return $result;
- }
-
- // }}}
-}
-
-// }}}
-// {{{ function MDB2_closeOpenTransactions()
-
-/**
- * Close any open transactions form persistent connections
- *
- * @return void
- *
- * @access public
- */
-
-function MDB2_closeOpenTransactions()
-{
- reset($GLOBALS['_MDB2_databases']);
- while (next($GLOBALS['_MDB2_databases'])) {
- $key = key($GLOBALS['_MDB2_databases']);
- if ($GLOBALS['_MDB2_databases'][$key]->opened_persistent
- && $GLOBALS['_MDB2_databases'][$key]->in_transaction
- ) {
- $GLOBALS['_MDB2_databases'][$key]->rollback();
- }
- }
-}
-
-// }}}
-// {{{ function MDB2_defaultDebugOutput(&$db, $scope, $message, $is_manip = null)
-
-/**
- * default debug output handler
- *
- * @param object reference to an MDB2 database object
- * @param string usually the method name that triggered the debug call:
- * for example 'query', 'prepare', 'execute', 'parameters',
- * 'beginTransaction', 'commit', 'rollback'
- * @param string message that should be appended to the debug variable
- * @param array contains context information about the debug() call
- * common keys are: is_manip, time, result etc.
- *
- * @return void|string optionally return a modified message, this allows
- * rewriting a query before being issued or prepared
- *
- * @access public
- */
-function MDB2_defaultDebugOutput(&$db, $scope, $message, $context = array())
-{
- $db->debug_output.= $scope.'('.$db->db_index.'): ';
- $db->debug_output.= $message.$db->getOption('log_line_break');
- return $message;
-}
-
-// }}}
-?>
\ No newline at end of file
projects / nextcloud-server.git / commitdiff