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Diffstat (limited to 'program/lib/MDB2.php')
| -rwxr-xr-x | program/lib/MDB2.php | 3268 |
1 files changed, 0 insertions, 3268 deletions
diff --git a/program/lib/MDB2.php b/program/lib/MDB2.php deleted file mode 100755 index 50b35a31d..000000000 --- a/program/lib/MDB2.php +++ /dev/null @@ -1,3268 +0,0 @@ -<?php -// vim: set et ts=4 sw=4 fdm=marker: -// +----------------------------------------------------------------------+ -// | PHP versions 4 and 5 | -// +----------------------------------------------------------------------+ -// | Copyright (c) 1998-2004 Manuel Lemos, Tomas V.V.Cox, | -// | Stig. S. Bakken, Lukas Smith | -// | All rights reserved. | -// +----------------------------------------------------------------------+ -// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB | -// | API as well as database abstraction for PHP applications. | -// | This LICENSE is in the BSD license style. | -// | | -// | Redistribution and use in source and binary forms, with or without | -// | modification, are permitted provided that the following conditions | -// | are met: | -// | | -// | Redistributions of source code must retain the above copyright | -// | notice, this list of conditions and the following disclaimer. | -// | | -// | Redistributions in binary form must reproduce the above copyright | -// | notice, this list of conditions and the following disclaimer in the | -// | documentation and/or other materials provided with the distribution. | -// | | -// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, | -// | Lukas Smith nor the names of his contributors may be used to endorse | -// | or promote products derived from this software without specific prior| -// | written permission. | -// | | -// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | -// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | -// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | -// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | -// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | -// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | -// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS| -// | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | -// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | -// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY| -// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | -// | POSSIBILITY OF SUCH DAMAGE. | -// +----------------------------------------------------------------------+ -// | Author: Lukas Smith <smith@pooteeweet.org> | -// +----------------------------------------------------------------------+ -// -// $Id$ -// - -/** - * @package MDB2 - * @category Database - * @author Lukas Smith <smith@pooteeweet.org> - */ - -require_once 'PEAR.php'; - -/** - * 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', 1); -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); - -/** - * 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 modes - - -/** - * 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); - -/** - * 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, -); - -/** - * 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_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_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. - * - * MDB2_Date This class provides several method to convert from and to - * MDB2 timestamps. - * - * @package MDB2 - * @category Database - * @author Lukas Smith <smith@pooteeweet.org> - */ -class MDB2 -{ - // }}} - // {{{ setOptions() - - /** - * set option array in an exiting database object - * - * @param object $db MDB2 object - * @param array $options An associative array of option names and their values. - * @access public - */ - function setOptions(&$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; - } - - // }}} - // {{{ factory() - - /** - * 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 $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 $options An associative array of option names and - * their values. - * @return mixed a newly created MDB2 object, or false on error - * @access public - */ - function &factory($dsn, $options = false) - { - $dsninfo = MDB2::parseDSN($dsn); - if (!array_key_exists('phptype', $dsninfo)) { - $err =& MDB2::raiseError(MDB2_ERROR_NOT_FOUND, - null, null, 'no RDBMS driver specified'); - return $err; - } - $class_name = 'MDB2_Driver_'.$dsninfo['phptype']; - - if (!class_exists($class_name)) { - $file_name = str_replace('_', DIRECTORY_SEPARATOR, $class_name).'.php'; - if (!MDB2::fileExists($file_name)) { - $err =& MDB2::raiseError(MDB2_ERROR_NOT_FOUND, null, null, - 'unable to find: '.$file_name); - return $err; - } - if (!include_once($file_name)) { - $err =& MDB2::raiseError(MDB2_ERROR_NOT_FOUND, null, null, - 'unable to load driver class: '.$file_name); - return $err; - } - } - - $db =& new $class_name(); - $db->setDSN($dsninfo); - $err = MDB2::setOptions($db, $options); - if (PEAR::isError($err)) { - return $err; - } - - return $db; - } - - // }}} - // {{{ connect() - - /** - * Create a new MDB2 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; - } - - // }}} - // {{{ singleton() - - /** - * Returns a MDB2 connection with the requested DSN. - * A newnew MDB2 connection object is only created if no object with the - * reuested 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 $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 $options An associative array of option names and - * their values. - * @return mixed a newly created MDB2 connection object, or a MDB2 - * error object on error - * @access public - * @see MDB2::parseDSN - */ - function &singleton($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) { - $tmp_dsn = $GLOBALS['_MDB2_databases'][$keys[$i]]->getDSN('array'); - if (count(array_diff($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; - } - - // }}} - // {{{ loadFile() - - /** - * load a file (like 'Date') - * - * @param string $file name of the file in the MDB2 directory (without '.php') - * @return string name of the file that was included - * @access public - */ - function loadFile($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 $file_name; - } - - // }}} - // {{{ apiVersion() - - /** - * Return the MDB2 API version - * - * @return string the MDB2 API version number - * @access public - */ - function apiVersion() - { - return '@package_version@'; - } - - // }}} - // {{{ raiseError() - - /** - * This method is used to communicate an error and invoke error - * callbacks etc. Basically a wrapper for PEAR::raiseError - * without the message string. - * - * @param mixed integer error code - * - * @param int error mode, see PEAR_Error docs - * - * @param mixed If error mode is PEAR_ERROR_TRIGGER, this is the - * error level (E_USER_NOTICE etc). If error mode is - * PEAR_ERROR_CALLBACK, this is the callback function, - * either as a function name, or as an array of an - * object and method name. For other error modes this - * parameter is ignored. - * - * @param string Extra debug information. Defaults to the last - * query and native error code. - * - * @return object a PEAR error object - * - * @see PEAR_Error - */ - function &raiseError($code = null, $mode = null, $options = null, $userinfo = null) - { - $err =& PEAR::raiseError(null, $code, $mode, $options, $userinfo, 'MDB2_Error', true); - return $err; - } - - // }}} - // {{{ isError() - - /** - * Tell whether a value is a MDB2 error. - * - * @param mixed $data the value to test - * @param int $code if $data is an error object, return true - * only if $code is a string and - * $db->getMessage() == $code or - * $code is an integer and $db->getCode() == $code - * @access public - * @return bool true if parameter is an error - */ - function isError($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; - } - - // }}} - // {{{ isConnection() - /** - * Tell whether a value is a MDB2 connection - * - * @param mixed $value value to test - * @return bool whether $value is a MDB2 connection - * @access public - */ - function isConnection($value) - { - return is_a($value, 'MDB2_Driver_Common'); - } - - // }}} - // {{{ isResult() - /** - * Tell whether a value is a MDB2 result - * - * @param mixed $value value to test - * @return bool whether $value is a MDB2 result - * @access public - */ - function isResult($value) - { - return is_a($value, 'MDB2_Result'); - } - - // }}} - // {{{ isResultCommon() - /** - * Tell whether a value is a MDB2 result implementing the common interface - * - * @param mixed $value 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'); - } - - // }}} - // {{{ isStatement() - /** - * Tell whether a value is a MDB2 statement interface - * - * @param mixed $value value to test - * @return bool whether $value is a MDB2 statement interface - * @access public - */ - function isStatement($value) - { - return is_a($value, 'MDB2_Statement'); - } - - // }}} - // {{{ isManip() - - /** - * Tell whether a query is a data manipulation query (insert, - * update or delete) or a data definition query (create, drop, - * alter, grant, revoke). - * - * @param string $query the query - * @return boolean whether $query is a data manipulation query - * @access public - */ - function isManip($query) - { - $manips = 'INSERT|UPDATE|DELETE|REPLACE|' - . 'CREATE|DROP|' - . 'LOAD DATA|SELECT .* INTO|COPY|' - . 'ALTER|GRANT|REVOKE|SET|' - . 'LOCK|UNLOCK'; - if (preg_match('/^\s*"?('.$manips.')\s+/i', $query)) { - return true; - } - return false; - } - - // }}} - // {{{ errorMessage() - - /** - * Return a textual error message for a MDB2 error code - * - * @param int $value error code - * @return string error message, or false if the error code was - * not recognized - * @access public - */ - function errorMessage($value) - { - static $errorMessages; - if (!isset($errorMessages)) { - $errorMessages = array( - MDB2_ERROR => 'unknown error', - MDB2_ERROR_ALREADY_EXISTS => 'already exists', - MDB2_ERROR_CANNOT_CREATE => 'can not create', - MDB2_ERROR_CANNOT_ALTER => 'can not alter', - MDB2_ERROR_CANNOT_REPLACE => 'can not replace', - MDB2_ERROR_CANNOT_DELETE => 'can not delete', - MDB2_ERROR_CANNOT_DROP => 'can not drop', - MDB2_ERROR_CONSTRAINT => 'constraint violation', - MDB2_ERROR_CONSTRAINT_NOT_NULL=> 'null value violates not-null constraint', - MDB2_ERROR_DIVZERO => 'division by zero', - MDB2_ERROR_INVALID => 'invalid', - MDB2_ERROR_INVALID_DATE => 'invalid date or time', - MDB2_ERROR_INVALID_NUMBER => 'invalid number', - MDB2_ERROR_MISMATCH => 'mismatch', - MDB2_ERROR_NODBSELECTED => 'no database selected', - MDB2_ERROR_NOSUCHFIELD => 'no such field', - MDB2_ERROR_NOSUCHTABLE => 'no such table', - MDB2_ERROR_NOT_CAPABLE => 'MDB2 backend not capable', - MDB2_ERROR_NOT_FOUND => 'not found', - MDB2_ERROR_NOT_LOCKED => 'not locked', - MDB2_ERROR_SYNTAX => 'syntax error', - MDB2_ERROR_UNSUPPORTED => 'not supported', - MDB2_ERROR_VALUE_COUNT_ON_ROW => 'value count on row', - MDB2_ERROR_INVALID_DSN => 'invalid DSN', - MDB2_ERROR_CONNECT_FAILED => 'connect failed', - MDB2_OK => 'no error', - MDB2_ERROR_NEED_MORE_DATA => 'insufficient data supplied', - MDB2_ERROR_EXTENSION_NOT_FOUND=> 'extension not found', - MDB2_ERROR_NOSUCHDB => 'no such database', - MDB2_ERROR_ACCESS_VIOLATION => 'insufficient permissions', - MDB2_ERROR_LOADMODULE => 'error while including on demand module', - MDB2_ERROR_TRUNCATED => 'truncated', - MDB2_ERROR_DEADLOCK => 'deadlock detected', - ); - } - - if (PEAR::isError($value)) { - $value = $value->getCode(); - } - - return isset($errorMessages[$value]) ? - $errorMessages[$value] : $errorMessages[MDB2_ERROR]; - } - - // }}} - // {{{ parseDSN() - - /** - * 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 $dsn Data Source Name to be parsed - * - * @return array an associative array with the following keys: - * + phptype: Database backend used in PHP (mysql, odbc etc.) - * + dbsyntax: Database used with regards to SQL syntax etc. - * + protocol: Communication protocol to use (tcp, unix etc.) - * + hostspec: Host specification (hostname[:port]) - * + database: Database to use on the DBMS server - * + username: User name for login - * + password: Password for login - * - * @author Tomas V.V.Cox <cox@idecnet.com> - */ - function parseDSN($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, '/') !== 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 ($parsed['protocol'] == 'tcp') { - if (strpos($proto_opts, ':') !== false) { - list($parsed['hostspec'], $parsed['port']) = explode(':', $proto_opts); - } else { - $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 $parsed; - } - - // }}} - // {{{ fileExists() - - /** - * checks if a file exists in the include path - * - * @access public - * @param string filename - * - * @return boolean true success and false on error - */ - function fileExists($file) - { - $dirs = explode(PATH_SEPARATOR, ini_get('include_path')); - foreach ($dirs as $dir) { - if (is_readable($dir . DIRECTORY_SEPARATOR . $file)) { - return true; - } - } - return false; - } -} - -/** - * 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 - - /** - * MDB2_Error constructor. - * - * @param mixed $code MDB error code, or string with error message. - * @param integer $mode what 'error mode' to operate in - * @param integer $level what error level to use for - * $mode & PEAR_ERROR_TRIGGER - * @param smixed $debuginfo additional debug info, such as the last query - */ - function MDB2_Error($code = MDB2_ERROR, $mode = PEAR_ERROR_RETURN, - $level = E_USER_NOTICE, $debuginfo = null) - { - $this->PEAR_Error('MDB2 Error: '.MDB2::errorMessage($code), $code, - $mode, $level, $debuginfo); - } -} - -/** - * 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 -{ - /** - * index of the MDB2 object within the $GLOBALS['_MDB2_databases'] array - * @var integer - * @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 boolean - * @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 currrently selected - * @var string - * @access protected - */ - var $connected_database_name = ''; - - /** - * 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, - 'current_id' => false, - 'limit_queries' => false, - 'LOBs' => false, - 'replace' => false, - 'sub_selects' => false, - 'auto_increment' => false, - 'primary_key' => false, - ); - - /** - * $options['ssl'] -> determines if ssl should be used for connections - * $options['field_case'] -> determines what case to force on field/table names - * $options['disable_query'] -> determines if querys should be executed - * $options['result_class'] -> class used for result sets - * $options['buffered_result_class'] -> class used for buffered result sets - * $options['result_wrap_class'] -> class used to wrap result sets into - * $options['result_buffering'] -> boolean|integer should results be buffered or not? - * $options['fetch_class'] -> class to use when fetch mode object is used - * $options['persistent'] -> boolean persistent connection? - * $options['debug'] -> integer numeric debug level - * $options['debug_handler'] -> string function/meothd that captures debug messages - * $options['lob_buffer_length'] -> integer LOB buffer length - * $options['log_line_break'] -> string line-break format - * $options['seqname_format'] -> string pattern for sequence name - * $options['seqcol_name'] -> string sequence column name - * $options['use_transactions'] -> boolean - * $options['decimal_places'] -> integer - * $options['portability'] -> portability constant - * $options['modules'] -> short to long module name mapping for __call() - * @var array - * @access public - */ - 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', - 'lob_buffer_length' => 8192, - 'log_line_break' => "\n", - 'seqname_format' => '%s_seq', - 'seqcol_name' => 'sequence', - 'use_transactions' => false, - 'decimal_places' => 2, - 'portability' => MDB2_PORTABILITY_ALL, - 'modules' => array( - 'ex' => 'Extended', - 'dt' => 'Datatype', - 'mg' => 'Manager', - 'rv' => 'Reverse', - 'na' => 'Native', - ), - ); - - /** - * escape character - * @var string - * @access protected - */ - var $escape_quotes = ''; - - /** - * 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 boolean - * @access protected - */ - var $in_transaction = false; - - /** - * result offset used in the next query - * @var integer - * @access protected - */ - var $row_offset = 0; - - /** - * result limit used in the next query - * @var integer - * @access protected - */ - var $row_limit = 0; - - /** - * Database backend used in PHP (mysql, odbc etc.) - * @var string - * @access protected - */ - var $phptype; - - /** - * Database used with regards to SQL syntax etc. - * @var string - * @access protected - */ - var $dbsyntax; - - /** - * the last query sent to the driver - * @var string - * @access public - */ - var $last_query; - - /** - * the default fetchmode used - * @var integer - * @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 $destructor_registered = true; - - // }}} - // {{{ constructor - - /** - * Constructor - */ - function __construct() - { - end($GLOBALS['_MDB2_databases']); - $db_index = key($GLOBALS['_MDB2_databases']) + 1; - $GLOBALS['_MDB2_databases'][$db_index] = &$this; - $this->db_index = $db_index; - } - - // }}} - // {{{ MDB2_Driver_Common - - /** - * PHP 4 Constructor - */ - function MDB2_Driver_Common() - { - $this->destructor_registered = false; - $this->__construct(); - } - - // }}} - // {{{ Destructor - - /** - * Destructor - */ - function __destruct() - { - if ($this->connection) { - if ($this->opened_persistent) { - if ($this->in_transaction) { - $this->rollback(); - } - } else { - $this->disconnect(); - } - } - } - - // }}} - // {{{ free() - - /** - * Free the internal references so that the instance can be destroyed - * - * @return boolean true on success, false if result is invalid - * @access public - */ - function free() - { - unset($GLOBALS['_MDB2_databases'][$this->db_index]); - unset($this->db_index); - return MDB2_OK; - } - - // }}} - // {{{ __toString() - - /** - * String conversation - * - * @return string - * @access public - */ - function __toString() - { - $info = get_class($this); - $info.= ': (phptype = '.$this->phptype.', dbsyntax = '.$this->dbsyntax.')'; - if ($this->connection) { - $info.= ' [connected]'; - } - return $info; - } - - // }}} - // {{{ errorInfo() - - /** - * This method is used to collect information about an error - * - * @param integer $error - * @return array - * @access public - */ - function errorInfo($error = null) - { - return array($error, null, null); - } - - // }}} - // {{{ raiseError() - - /** - * This method is used to communicate an error and invoke error - * callbacks etc. Basically a wrapper for PEAR::raiseError - * without the message string. - * - * @param mixed integer error code, or a PEAR error object (all - * other parameters are ignored if this parameter is - * an object - * - * @param int error mode, see PEAR_Error docs - * - * @param mixed If error mode is PEAR_ERROR_TRIGGER, this is the - * error level (E_USER_NOTICE etc). If error mode is - * PEAR_ERROR_CALLBACK, this is the callback function, - * either as a function name, or as an array of an - * object and method name. For other error modes this - * parameter is ignored. - * - * @param string Extra debug information. Defaults to the last - * query and native error code. - * - * @return object a PEAR error object - * - * @see PEAR_Error - */ - function &raiseError($code = null, $mode = null, $options = null, $userinfo = null) - { - // The error is yet a MDB2 error object - if (PEAR::isError($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 = $this->_default_error_options; - } - } else { - if (is_null($userinfo) && isset($this->connection)) { - if (!empty($this->last_query)) { - $userinfo = "[Last query: {$this->last_query}]\n"; - } - $native_errno = $native_msg = null; - list($code, $native_errno, $native_msg) = $this->errorInfo($code); - if (!is_null($native_errno)) { - $userinfo.= "[Native code: $native_errno]\n"; - } - if (!is_null($native_msg)) { - $userinfo.= "[Native message: ". strip_tags($native_msg) ."]\n"; - } - } else { - $userinfo = "[Error message: $userinfo]\n"; - } - } - - $err =& PEAR::raiseError(null, $code, $mode, $options, $userinfo, 'MDB2_Error', true); - return $err; - } - - // }}} - // {{{ errorNative() - - /** - * returns an errormessage, provides by the database - * - * @return mixed MDB2 Error Object or message - * @access public - */ - function errorNative() - { - return $this->raiseError(MDB2_ERROR_UNSUPPORTED); - } - - // }}} - // {{{ resetWarnings() - - /** - * reset the warning array - * - * @access public - */ - function resetWarnings() - { - $this->warnings = array(); - } - - // }}} - // {{{ getWarnings() - - /** - * get all warnings in reverse order. - * This means that the last warning is the first element in the array - * - * @return array with warnings - * @access public - * @see resetWarnings() - */ - function getWarnings() - { - return array_reverse($this->warnings); - } - - // }}} - // {{{ setFetchMode() - - /** - * Sets which fetch mode should be used by default on queries - * on this connection - * - * @param integer $fetchmode MDB2_FETCHMODE_ORDERED, MDB2_FETCHMODE_ASSOC - * or MDB2_FETCHMODE_OBJECT - * @param string $object_class the class name of the object to be returned - * by the fetch methods when the - * MDB2_FETCHMODE_OBJECT mode is selected. - * If no class is specified by default a cast - * to object from the assoc array row will be - * done. There is also the posibility to use - * and extend the 'MDB2_row' class. - * - * @see MDB2_FETCHMODE_ORDERED, MDB2_FETCHMODE_ASSOC, MDB2_FETCHMODE_OBJECT - * @access public - */ - function setFetchMode($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('invalid fetchmode mode'); - } - } - - // }}} - // {{{ setOption() - - /** - * set the option for the db class - * - * @param string $option option name - * @param mixed $value value for the option - * @return mixed MDB2_OK or MDB2 Error Object - * @access public - */ - function setOption($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"); - } - - // }}} - // {{{ getOption() - - /** - * returns the value of an option - * - * @param string $option option name - * @return mixed the option value or error object - * @access public - */ - function getOption($option) - { - if (array_key_exists($option, $this->options)) { - return $this->options[$option]; - } - return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, - "unknown option $option"); - } - - // }}} - // {{{ debug() - - /** - * set a debug message - * - * @param string $message Message with information for the user. - * @access public - */ - function debug($message, $scope = '') - { - if ($this->options['debug'] && $this->options['debug_handler']) { - call_user_func_array($this->options['debug_handler'], array(&$this, $scope, $message)); - } - } - - // }}} - // {{{ debugOutput() - - /** - * output debug info - * - * @return string content of the debug_output class variable - * @access public - */ - function debugOutput() - { - return $this->debug_output; - } - - // }}} - // {{{ escape() - - /** - * 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 $text the input string to quote - * @return string quoted string - * @access public - */ - function escape($text) - { - if ($this->escape_quotes !== "'") { - $text = str_replace($this->escape_quotes, $this->escape_quotes.$this->escape_quotes, $text); - } - return str_replace("'", $this->escape_quotes . "'", $text); - } - - // }}} - // {{{ quoteIdentifier() - - /** - * 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. - * - * 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 - * + odbc(access) - * + odbc(db2) - * + pgsql - * + sqlite - * + sybase - * - * InterBase doesn't seem to be able to use delimited identifiers - * via PHP 4. They work fine under PHP 5. - * - * @param string $str identifier name to be quoted - * - * @return string quoted identifier string - * - * @access public - */ - function quoteIdentifier($str) - { - return '"' . str_replace('"', '""', $str) . '"'; - } - - // }}} - // {{{ _fixResultArrayValues() - - /** - * Do all necessary conversions on result arrays to fix DBMS quirks - * - * @param array $array the array to be fixed (passed by reference) - * @return void - * @access protected - */ - function _fixResultArrayValues(&$array, $mode) - { - switch ($mode) { - case MDB2_PORTABILITY_RTRIM: - foreach ($array as $key => $value) { - if (is_string($value)) { - $array[$key] = rtrim($value); - } - } - case MDB2_PORTABILITY_EMPTY_TO_NULL: - foreach ($array as $key => $value) { - if ($value === '') { - $array[$key] = null; - } - } - case MDB2_PORTABILITY_FIX_ASSOC_FIELD_NAMES: - $tmp_array = array(); - foreach ($array as $key => $value) { - $tmp_array[preg_replace('/^(?:.*\.)?([^.]+)$/', '\\1', $key)] = $value; - } - $array = $tmp_array; - case (MDB2_PORTABILITY_RTRIM + MDB2_PORTABILITY_EMPTY_TO_NULL): - foreach ($array as $key => $value) { - if ($value === '') { - $array[$key] = null; - } elseif (is_string($value)) { - $array[$key] = rtrim($value); - } - } - case (MDB2_PORTABILITY_RTRIM + MDB2_PORTABILITY_FIX_ASSOC_FIELD_NAMES): - $tmp_array = array(); - foreach ($array as $key => $value) { - if (is_string($value)) { - $value = rtrim($value); - } - $tmp_array[preg_replace('/^(?:.*\.)?([^.]+)$/', '\\1', $key)] = $value; - } - $array = $tmp_array; - case (MDB2_PORTABILITY_EMPTY_TO_NULL + MDB2_PORTABILITY_FIX_ASSOC_FIELD_NAMES): - $tmp_array = array(); - foreach ($array as $key => $value) { - if ($value === '') { - $value = null; - } - $tmp_array[preg_replace('/^(?:.*\.)?([^.]+)$/', '\\1', $key)] = $value; - } - $array = $tmp_array; - case (MDB2_PORTABILITY_RTRIM + MDB2_PORTABILITY_EMPTY_TO_NULL + MDB2_PORTABILITY_FIX_ASSOC_FIELD_NAMES): - $tmp_array = array(); - foreach ($array as $key => $value) { - if ($value === '') { - $value = null; - } elseif (is_string($value)) { - $value = rtrim($value); - } - $tmp_array[preg_replace('/^(?:.*\.)?([^.]+)$/', '\\1', $key)] = $value; - } - $array = $tmp_array; - } - } - - // }}} - // {{{ loadModule() - - /** - * loads a module - * - * @param string $module name of the module that should be loaded - * (only used for error messages) - * @param string $property name of the property into which the class will be loaded - * @return object on success a reference to the given module is returned - * and on failure a PEAR error - * @access public - */ - function &loadModule($module, $property = null) - { - if (!$property) { - $property = strtolower($module); - } - - if (!isset($this->{$property})) { - $version = false; - $class_name = 'MDB2_'.$module; - $file_name = str_replace('_', DIRECTORY_SEPARATOR, $class_name).'.php'; - if (!class_exists($class_name) && !MDB2::fileExists($file_name)) { - $class_name = 'MDB2_Driver_'.$module.'_'.$this->phptype; - $file_name = str_replace('_', DIRECTORY_SEPARATOR, $class_name).'.php'; - $version = true; - if (!class_exists($class_name) && !MDB2::fileExists($file_name)) { - $err =& $this->raiseError(MDB2_ERROR_LOADMODULE, null, null, - 'unable to find module: '.$file_name); - return $err; - } - } - - if (!class_exists($class_name) && !include_once($file_name)) { - $err =& $this->raiseError(MDB2_ERROR_LOADMODULE, null, null, - 'unable to load manager driver class: '.$file_name); - return $err; - } - - // load modul in a specific version - if ($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; - $file_name = str_replace('_', DIRECTORY_SEPARATOR, $class_name).'.php'; - if (!MDB2::fileExists($file_name)) { - $err =& $this->raiseError(MDB2_ERROR_LOADMODULE, null, null, - 'unable to find module: '.$file_name); - return $err; - } - if (!include_once($file_name)) { - $err =& $this->raiseError(MDB2_ERROR_LOADMODULE, null, null, - 'unable to load manager driver class: '.$file_name); - return $err; - } - } - } - } - - if (!class_exists($class_name)) { - $err =& $this->raiseError(MDB2_ERROR_LOADMODULE, null, null, - 'unable to load module: '.$module.' into property: '.$property); - return $err; - } - $this->{$property} =& new $class_name($this->db_index); - $this->modules[$module] =& $this->{$property}; - if ($version) { - // this wil 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}; - } - - /** - * 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); - } - - // }}} - // {{{ beginTransaction() - - /** - * Start a transaction. - * - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function beginTransaction() - { - $this->debug('Starting transaction', 'beginTransaction'); - return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, - 'beginTransaction: transactions are not supported'); - } - - // }}} - // {{{ commit() - - /** - * Commit the database changes done during a transaction 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 committing the pending changes. - * - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function commit() - { - $this->debug('commiting transaction', 'commit'); - return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, - 'commit: commiting transactions is not supported'); - } - - // }}} - // {{{ rollback() - - /** - * Cancel any database changes done during a transaction 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. - * - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function rollback() - { - $this->debug('rolling back transaction', 'rollback'); - return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, - 'rollback: rolling back transactions is not supported'); - } - - // }}} - // {{{ disconnect() - - /** - * Log out and disconnect from the database. - * - * @return mixed true on success, false if not connected and error - * object on error - * @access public - */ - function disconnect() - { - return MDB2_OK; - } - - // }}} - // {{{ setDatabase() - - /** - * Select a different database - * - * @param string $name name of the database that should be selected - * @return string name of the database previously connected to - * @access public - */ - function setDatabase($name) - { - $previous_database_name = (isset($this->database_name)) ? $this->database_name : ''; - $this->database_name = $name; - return $previous_database_name; - } - - // }}} - // {{{ getDatabase() - - /** - * get the current database - * - * @return string name of the database - * @access public - */ - function getDatabase() - { - return $this->database_name; - } - - // }}} - // {{{ setDSN() - - /** - * set the DSN - * - * @param mixed $dsn DSN string or array - * @return MDB2_OK - * @access public - */ - function setDSN($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 MDB2_OK; - } - - // }}} - // {{{ getDSN() - - /** - * return the DSN as a string - * - * @param string $type format to return ("array", "string") - * @param string $hidepw string to hide the password with - * @return mixed DSN in the chosen type - * @access public - */ - function getDSN($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['username'].':'. - $dsn['password'].'@'.$dsn['hostspec']. - ($dsn['port'] ? (':'.$dsn['port']) : ''). - '/'.$dsn['database']; - break; - case 'array': - default: - break; - } - return $dsn; - } - - // }}} - // {{{ standaloneQuery() - - /** - * execute a query as database administrator - * - * @param string $query the SQL query - * @param mixed $types array that contains the types of the columns in - * the result set - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function &standaloneQuery($query, $types = null) - { - $isManip = MDB2::isManip($query); - $offset = $this->row_offset; - $limit = $this->row_limit; - $this->row_offset = $this->row_limit = 0; - $query = $this->_modifyQuery($query, $isManip, $limit, $offset); - - $connected = $this->connect(); - if (PEAR::isError($connected)) { - return $connected; - } - - $result = $this->_doQuery($query, $isManip, $this->connection, false); - if (PEAR::isError($result)) { - return $result; - } - - if ($isManip) { - return $result; - } - - $result =& $this->_wrapResult($result, $types, true, false, $limit, $offset); - return $result; - } - - // }}} - // {{{ _modifyQuery() - - /** - * Changes a query string for various DBMS specific reasons - * - * @param string $query query to modify - * @return the new (modified) query - * @access protected - */ - function _modifyQuery($query) - { - return $query; - } - - // }}} - // {{{ _doQuery() - - /** - * Execute a query - * @param string $query query - * @param boolean $isManip if the query is a manipulation query - * @param resource $connection - * @param string $database_name - * @return result or error object - * @access protected - */ - function _doQuery($query, $isManip = false, $connection = null, $database_name = null) - { - $this->last_query = $query; - $this->debug($query, 'query'); - return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, - 'query: method not implemented'); - } - - // }}} - // {{{ query() - - /** - * Send a query to the database and return any results - * - * @param string $query the SQL query - * @param mixed $types array that contains the types of the columns in - * the result set - * @param mixed $result_class string which specifies which result class to use - * @param mixed $result_wrap_class string which specifies which class to wrap results in - * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function &query($query, $types = null, $result_class = true, $result_wrap_class = false) - { - $isManip = MDB2::isManip($query); - $offset = $this->row_offset; - $limit = $this->row_limit; - $this->row_offset = $this->row_limit = 0; - $query = $this->_modifyQuery($query, $isManip, $limit, $offset); - - $connected = $this->connect(); - if (PEAR::isError($connected)) { - return $connected; - } - - $result = $this->_doQuery($query, $isManip, $this->connection, $this->database_name); - if (PEAR::isError($result)) { - return $result; - } - - // check for integers instead of manip since drivers may do some - // custom checks not covered by MDB2::isManip() - if (is_int($result)) { - return $result; - } - - $result =& $this->_wrapResult($result, $types, $result_class, $result_wrap_class, $limit, $offset); - return $result; - } - - // }}} - // {{{ _wrapResult() - - /** - * wrap a result set into the correct class - * - * @param ressource $result - * @param mixed $types array that contains the types of the columns in - * the result set - * @param mixed $result_class string which specifies which result class to use - * @param mixed $result_wrap_class string which specifies which class to wrap results in - * @param string $limit number of rows to select - * @param string $offset first row to select - * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure - * @access protected - */ - function &_wrapResult($result, $types = array(), $result_class = true, - $result_wrap_class = false, $limit = null, $offset = null) - { - if ($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, $this->phptype); - if (!class_exists($class_name)) { - $err =& $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null, - '_wrapResult: result class does not exist '.$class_name); - return $err; - } - $result =& new $class_name($this, $result, $limit, $offset); - if (!MDB2::isResultCommon($result)) { - $err =& $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null, - '_wrapResult: result class is not extended from MDB2_Result_Common'); - 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 (!class_exists($result_wrap_class)) { - $err =& $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null, - '_wrapResult: result wrap class does not exist '.$result_wrap_class); - return $err; - } - $result =& new $result_wrap_class($result, $this->fetchmode); - } - return $result; - } - - // }}} - // {{{ setLimit() - - /** - * set the range of the next query - * - * @param string $limit number of rows to select - * @param string $offset first row to select - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function setLimit($limit, $offset = null) - { - if (!$this->supports('limit_queries')) { - return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, - 'setLimit: limit is not supported by this driver'); - } - $limit = (int)$limit; - if ($limit < 0) { - return $this->raiseError(MDB2_ERROR_SYNTAX, null, null, - 'setLimit: it was not specified a valid selected range row limit'); - } - $this->row_limit = $limit; - if (!is_null($offset)) { - $offset = (int)$offset; - if ($offset < 0) { - return $this->raiseError(MDB2_ERROR_SYNTAX, null, null, - 'setLimit: it was not specified a valid first selected range row'); - } - $this->row_offset = $offset; - } - return MDB2_OK; - } - - // }}} - // {{{ subSelect() - - /** - * simple subselect emulation: leaves the query untouched for all RDBMS - * that support subselects - * - * @access public - * - * @param string $query the SQL query for the subselect that may only - * return a column - * @param string $type determines type of the field - * - * @return string the query - */ - function subSelect($query, $type = false) - { - if ($this->supports('sub_selects') === true) { - return $query; - } - - if (!$this->supports('sub_selects')) { - return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, - 'subSelect: method not implemented'); - } - - $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'); - return $this->datatype->implodeArray($col, $type); - } - return implode(', ', $col); - } - - // }}} - // {{{ replace() - - /** - * 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 REPLACE query just updates its values instead of - * inserting a new row. - * - * The REPLACE type of query does not make part of the SQL standards. Since - * pratically only MySQL implements it natively, this type of query is - * emulated through this method for other DBMS using standard types of - * queries inside a transaction to assure the atomicity of the operation. - * - * @param string $table name of the table on which the REPLACE query will - * be executed. - * @param array $fields associative array that describes the fields and the - * values that will be inserted or updated in the specified table. The - * indexes of the array are the names of all the fields of the table. - * The values of the array are also associative arrays that describe - * the values and other properties of the table fields. - * - * Here follows a list of field properties that need to be specified: - * - * value - * Value to be assigned to the specified field. This value may be - * of specified in database independent type format as this - * function can perform the necessary datatype conversions. - * - * Default: this property is required unless the Null property is - * set to 1. - * - * type - * Name of the type of the field. Currently, all types Metabase - * are supported except for clob and blob. - * - * Default: no type conversion - * - * null - * Boolean property that indicates that the value for this field - * should be set to null. - * - * The default value for fields missing in INSERT queries may be - * specified the definition of a table. Often, the default value - * is already null, but since the REPLACE may be emulated using - * an UPDATE query, make sure that all fields of the table are - * listed in this function argument array. - * - * Default: 0 - * - * key - * Boolean property that indicates that this field should be - * handled as a primary key or at least as part of the compound - * unique index of the table that will determine the row that will - * updated if it exists or inserted a new row otherwise. - * - * This function will fail if no key field is specified or if the - * value of a key field is set to null because fields that are - * part of unique index they may not be null. - * - * Default: 0 - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function replace($table, $fields) - { - if (!$this->supports('replace')) { - return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, - 'replace: replace query is not supported'); - } - $count = count($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']) { - $value = 'NULL'; - } else { - if (isset($fields[$name]['type'])) { - $value = $this->quote($fields[$name]['value'], $fields[$name]['type']); - } else { - $value = $fields[$name]['value']; - } - } - $values[$name] = $value; - if (isset($fields[$name]['key']) && $fields[$name]['key']) { - if ($value === 'NULL') { - return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null, - 'replace: key value '.$name.' may not be NULL'); - } - $condition[] = $name . '=' . $value; - } - } - if (empty($condition)) { - return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null, - 'replace: not specified which fields are keys'); - } - - $result = null; - $in_transaction = $this->in_transaction; - if (!$in_transaction && PEAR::isError($result = $this->beginTransaction())) { - return $result; - } - - $condition = ' WHERE '.implode(' AND ', $condition); - $query = "DELETE FROM $table$condition"; - $affected_rows = $result = $this->_doQuery($query, true); - if (!PEAR::isError($result)) { - $insert = implode(', ', array_keys($values)); - $values = implode(', ', $values); - $query = "INSERT INTO $table ($insert) VALUES ($values)"; - $result = $this->_doQuery($query, true); - if (!PEAR::isError($result)) { - $affected_rows += $result; - } - } - - if (!$in_transaction) { - if (PEAR::isError($result)) { - $this->rollback(); - } else { - $result = $this->commit(); - } - } - - if (PEAR::isError($result)) { - return $result; - } - - return $affected_rows; - } - - // }}} - // {{{ prepare() - - /** - * Prepares a query for multiple execution with execute(). - * With some database backends, this is emulated. - * prepare() requires a generic query as string like - * 'INSERT INTO numbers VALUES(?,?)' or - * 'INSERT INTO numbers VALUES(:foo,:bar)'. - * The ? and :[a-zA-Z] and are placeholders which can be set using - * bindParam() and the query can be send off using the execute() method. - * - * @param string $query the query to prepare - * @param mixed $types array that contains the types of the placeholders - * @param mixed $result_types array that contains the types of the columns in - * the result set - * @return mixed resource handle for the prepared query on success, a MDB2 - * error on failure - * @access public - * @see bindParam, execute - */ - function &prepare($query, $types = null, $result_types = null) - { - $this->debug($query, 'prepare'); - $positions = array(); - $placeholder_type_guess = $placeholder_type = null; - $question = '?'; - $colon = ':'; - $position = 0; - while ($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]; - } - if (is_int($quote = strpos($query, "'", $position)) && $quote < $p_position) { - if (!is_int($end_quote = strpos($query, "'", $quote + 1))) { - $err =& $this->raiseError(MDB2_ERROR_SYNTAX, null, null, - 'prepare: query with an unterminated text string specified'); - return $err; - } - switch ($this->escape_quotes) { - case '': - case "'": - $position = $end_quote + 1; - break; - default: - if ($end_quote == $quote + 1) { - $position = $end_quote + 1; - } else { - if ($query[$end_quote-1] == $this->escape_quotes) { - $position = $end_quote; - } else { - $position = $end_quote + 1; - } - } - break; - } - } elseif ($query[$position] == $placeholder_type_guess) { - if (is_null($placeholder_type)) { - $placeholder_type = $query[$p_position]; - $question = $colon = $placeholder_type; - } - if ($placeholder_type == ':') { - $parameter = preg_replace('/^.{'.($position+1).'}([a-z0-9_]+).*$/si', '\\1', $query); - if ($parameter === '') { - $err =& $this->raiseError(MDB2_ERROR_SYNTAX, null, null, - 'prepare: named parameter with an empty name'); - return $err; - } - $positions[$parameter] = $p_position; - $query = substr_replace($query, '?', $position, strlen($parameter)+1); - } else { - $positions[] = $p_position; - } - $position = $p_position + 1; - } else { - $position = $p_position; - } - } - $class_name = 'MDB2_Statement_'.$this->phptype; - $obj =& new $class_name($this, $positions, $query, $types, $result_types); - return $obj; - } - - // }}} - // {{{ quote() - - /** - * Convert a text value into a DBMS specific format that is suitable to - * compose query statements. - * - * @param string $value text string value that is intended to be converted. - * @param string $type type to which the value should be converted to - * @return string text string that represents the given argument value in - * a DBMS specific format. - * @access public - */ - function quote($value, $type = null, $quote = true) - { - $result = $this->loadModule('Datatype'); - if (PEAR::isError($result)) { - return $result; - } - return $this->datatype->quote($value, $type, $quote); - } - - // }}} - // {{{ getDeclaration() - - /** - * Obtain DBMS specific SQL code portion needed to declare - * of the given type - * - * @param string $type type to which the value should be converted to - * @param string $name name the field to be declared. - * @param string $field definition of the field - * @return string DBMS specific SQL code portion that should be used to - * declare the specified field. - * @access public - */ - function getDeclaration($type, $name, $field) - { - $result = $this->loadModule('Datatype'); - if (PEAR::isError($result)) { - return $result; - } - return $this->datatype->getDeclaration($type, $name, $field); - } - - // }}} - // {{{ compareDefinition() - - /** - * Obtain an array of changes that may need to applied - * - * @param array $current new definition - * @param array $previous old definition - * @return array containg all changes that will need to be applied - * @access public - */ - function compareDefinition($current, $previous) - { - $result = $this->loadModule('Datatype'); - if (PEAR::isError($result)) { - return $result; - } - return $this->datatype->compareDefinition($current, $previous); - } - - // }}} - // {{{ supports() - - /** - * Tell whether a DB implementation or its backend extension - * supports a given feature. - * - * @param string $feature name of the feature (see the MDB2 class doc) - * @return boolean|string whether this DB implementation supports $feature - * false means no, true means native, 'emulated' means emulated - * @access public - */ - function supports($feature) - { - if (array_key_exists($feature, $this->supported)) { - return $this->supported[$feature]; - } - return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, - "unknown support feature $feature"); - } - - // }}} - // {{{ getSequenceName() - - /** - * adds sequence name formating to a sequence name - * - * @param string $sqn name of the sequence - * @return string formatted sequence name - * @access public - */ - function getSequenceName($sqn) - { - return sprintf($this->options['seqname_format'], - preg_replace('/[^a-z0-9_]/i', '_', $sqn)); - } - - // }}} - // {{{ nextID() - - /** - * returns the next free id of a sequence - * - * @param string $seq_name name of the sequence - * @param boolean $ondemand when true the seqence is - * automatic created, if it - * not exists - * @return mixed MDB2 Error Object or id - * @access public - */ - function nextID($seq_name, $ondemand = true) - { - return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, - 'nextID: method not implemented'); - } - - // }}} - // {{{ lastInsertID() - - /** - * returns the autoincrement ID if supported or $id - * - * @param mixed $id value as returned by getBeforeId() - * @param string $table name of the table into which a new row was inserted - * @return mixed MDB2 Error Object or id - * @access public - */ - function lastInsertID($table = null, $field = null) - { - $seq = $table.(empty($field) ? '' : '_'.$field); - return $this->currID($seq); - } - - // }}} - // {{{ currID() - - /** - * returns the current id of a sequence - * - * @param string $seq_name name of the sequence - * @return mixed MDB2 Error Object or id - * @access public - */ - function currID($seq_name) - { - $this->warnings[] = 'database does not support getting current - sequence value, the sequence value was incremented'; - return $this->nextID($seq_name); - } - - // }}} - // {{{ queryOne() - - /** - * 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 $type optional argument that specifies the expected - * datatype of the result set field, so that an eventual conversion - * may be performed. The default datatype is text, meaning that no - * conversion is performed - * @return mixed MDB2_OK or field value on success, a MDB2 error on failure - * @access public - */ - function queryOne($query, $type = null) - { - $result = $this->query($query, $type); - if (!MDB2::isResultCommon($result)) { - return $result; - } - - $one = $result->fetchOne(); - $result->free(); - return $one; - } - - // }}} - // {{{ queryRow() - - /** - * 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 $query the SELECT query statement to be executed. - * @param array $types 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 $fetchmode how the array data should be indexed - * @return mixed MDB2_OK or data array on success, a MDB2 error on failure - * @access public - */ - function queryRow($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; - } - - // }}} - // {{{ queryCol() - - /** - * 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 int $colnum the row number to fetch - * @return mixed MDB2_OK or data array on success, a MDB2 error on failure - * @access public - */ - function queryCol($query, $type = null, $colnum = 0) - { - $result = $this->query($query, $type); - if (!MDB2::isResultCommon($result)) { - return $result; - } - - $col = $result->fetchCol($colnum); - $result->free(); - return $col; - } - - // }}} - // {{{ queryAll() - - /** - * 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 $query the SELECT query statement to be executed. - * @param array $types 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 $fetchmode how the array data should be indexed - * @param boolean $rekey if set to true, the $all will have the first - * column as its first dimension - * @param boolean $force_array 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 boolean $group if true, the values of the returned array is - * wrapped in another array. If the same key value (in the first - * column) repeats itself, the values will be appended to this array - * instead of overwriting the existing values. - * @return mixed MDB2_OK or data array on success, a MDB2 error on failure - * @access public - */ - function queryAll($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 -{ -} - -class MDB2_Result_Common extends MDB2_Result -{ - var $db; - var $result; - var $rownum = -1; - var $types; - var $values; - var $offset; - var $offset_count = 0; - var $limit; - var $column_names; - - // {{{ constructor - - /** - * Constructor - */ - function __construct(&$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) - { - $this->__construct($db, $result, $limit, $offset); - } - - // }}} - // {{{ setResultTypes() - - /** - * 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 string $types array variable that lists the - * data types to be expected in the result set columns. If this array - * contains less types than the number of columns that are returned - * in the result set, the remaining columns are assumed to be of the - * type text. Currently, the types clob and blob are not fully - * supported. - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function setResultTypes($types) - { - $load = $this->db->loadModule('Datatype'); - if (PEAR::isError($load)) { - return $load; - } - return $this->db->datatype->setResultTypes($this, $types); - } - - // }}} - // {{{ seek() - - /** - * seek to a specific row in a result set - * - * @param int $rownum number of the row where the data can be found - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function seek($rownum = 0) - { - $target_rownum = $rownum - 1; - if ($this->rownum > $target_rownum) { - return $this->db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, - 'seek: seeking to previous rows not implemented'); - } - while ($this->rownum < $target_rownum) { - $this->fetchRow(); - } - return MDB2_OK; - } - - // }}} - // {{{ fetchRow() - - /** - * Fetch and return a row of data - * - * @param int $fetchmode how the array data should be indexed - * @param int $rownum number of the row where the data can be found - * @return int data array on success, a MDB2 error on failure - * @access public - */ - function &fetchRow($fetchmode = MDB2_FETCHMODE_DEFAULT, $rownum = null) - { - $err =& $this->db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, - 'fetch: method not implemented'); - return $err; - } - - // }}} - // {{{ fetchOne() - - /** - * fetch single column from the first row from a result set - * - * @param int $colnum the column number to fetch - * @return string data on success, a MDB2 error on failure - * @access public - */ - function fetchOne($colnum = 0) - { - $fetchmode = is_numeric($colnum) ? MDB2_FETCHMODE_ORDERED : MDB2_FETCHMODE_ASSOC; - $row = $this->fetchRow($fetchmode); - if (!is_array($row) || PEAR::isError($row)) { - return $row; - } - if (!array_key_exists($colnum, $row)) { - return $this->db->raiseError(MDB2_ERROR_TRUNCATED); - } - return $row[$colnum]; - } - - // }}} - // {{{ fetchCol() - - /** - * Fetch and return a column of data (it uses current for that) - * - * @param int $colnum the column number to fetch - * @return mixed data array on success, a MDB2 error on failure - * @access public - */ - function fetchCol($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); - } - do { - $column[] = $row[$colnum]; - } while (is_array($row = $this->fetchRow($fetchmode))); - } - if (PEAR::isError($row)) { - return $row; - } - return $column; - } - - // }}} - // {{{ fetchAll() - - /** - * Fetch and return a column of data (it uses fetchRow for that) - * - * @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 boolean $rekey if set to true, the $all will have the first - * column as its first dimension - * @param boolean $force_array 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 boolean $group if true, the values of the returned array is - * wrapped in another array. If the same key value (in the first - * column) repeats itself, the values will be appended to this array - * instead of overwriting the existing values. - * @return mixed data array on success, a MDB2 error on failure - * @access public - * @see getAssoc() - */ - function fetchAll($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); - } - $shift_array = (!$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; - } - - // }}} - // {{{ rowCount() - - /** - * returns the actual row number that was last fetched (count from 0) - * @return integer - */ - function rowCount() - { - return $this->rownum + 1; - } - - // }}} - // {{{ 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, - 'numRows: method not implemented'); - } - - // }}} - // {{{ nextResult() - - /** - * Move the internal result pointer to the next available result - * - * @param a valid result resource - * @return true on success or an error object on failure - * @access public - */ - function nextResult() - { - return $this->db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, - 'nextResult: method not implemented'); - } - - // }}} - // {{{ getColumnNames() - - /** - * Retrieve the names of columns returned by the DBMS in a query result or - * from the cache. - * - * @return mixed associative array variable - * that holds the names of columns. The indexes of the array are - * the column names mapped to lower case and the values are the - * respective numbers of the columns starting from 0. Some DBMS may - * not return any columns when the result set does not contain any - * rows. - * a MDB2 error on failure - * @access public - */ - function getColumnNames() - { - if (!isset($this->column_names)) { - $result = $this->_getColumnNames(); - if (PEAR::isError($result)) { - return $result; - } - $this->column_names = $result; - } - return $this->column_names; - } - - // }}} - // {{{ _getColumnNames() - - /** - * Retrieve the names of columns returned by the DBMS in a query result. - * - * @return mixed associative array variable - * that holds the names of columns. The indexes of the array are - * the column names mapped to lower case and the values are the - * respective numbers of the columns starting from 0. Some DBMS may - * not return any columns when the result set does not contain any - * rows. - * a MDB2 error on failure - * @access private - */ - function _getColumnNames() - { - return $this->db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, - 'getColumnNames: method not implemented'); - } - - // }}} - // {{{ 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, - 'numCols: method not implemented'); - } - - // }}} - // {{{ getResource() - - /** - * return the resource associated with the result object - * - * @return resource - * @access public - */ - function getResource() - { - return $this->result; - } - - - // }}} - // {{{ bindColumn() - - /** - * Set bind variable to a column. - * - * @param int $column - * @param mixed $value - * @param string $type specifies the type of the field - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function bindColumn($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; - } - - // }}} - // {{{ _assignBindColumns() - - /** - * Bind a variable to a value in the result row. - * - * @param array $row - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access private - */ - function _assignBindColumns($row) - { - $row = array_values($row); - foreach ($row as $column => $value) { - if (array_key_exists($column, $this->values)) { - $this->values[$column] = $value; - } - } - return MDB2_OK; - } - - // }}} - // {{{ free() - - /** - * Free the internal resources associated with result. - * - * @return boolean true on success, false if result is invalid - * @access public - */ - function free() - { - $this->result = null; - return MDB2_OK; - } -} - -// }}} -// {{{ class MDB2_Row - -/** - * Pear MDB2 Row Object - * @see MDB2_Driver_Common::setFetchMode() - */ -class MDB2_Row -{ - // {{{ constructor - - /** - * constructor - * - * @param resource row data as array - */ - function __construct(&$row) - { - foreach ($row as $key => $value) { - $this->$key = &$row[$key]; - } - } - - function MDB2_Row(&$row) - { - $this->__construct($row); - } -} - -class MDB2_Statement_Common -{ - var $db; - var $statement; - var $query; - var $result_types; - var $types; - var $values; - var $row_limit; - var $row_offset; - - // {{{ constructor - - /** - * Constructor - */ - function __construct(&$db, &$statement, $query, $types, $result_types, $limit = null, $offset = null) - { - $this->db =& $db; - $this->statement =& $statement; - $this->query = $query; - $this->types = (array)$types; - $this->result_types = (array)$result_types; - $this->row_limit = $limit; - $this->row_offset = $offset; - } - - function MDB2_Statement_Common(&$db, &$statement, $query, $types, $result_types, $limit = null, $offset = null) - { - $this->__construct($db, $statement, $query, $types, $result_types, $limit, $offset); - } - - // }}} - // {{{ bindParam() - - /** - * Set the value of a parameter of a prepared query. - * - * @param int $parameter the order number of the parameter in the query - * statement. The order number of the first parameter is 1. - * @param mixed $value value that is meant to be assigned to specified - * parameter. The type of the value depends on the $type argument. - * @param string $type specifies the type of the field - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function bindParam($parameter, &$value, $type = null) - { - if (!is_numeric($parameter)) { - $parameter = preg_replace('/^:(.*)$/', '\\1', $parameter); - } - $this->values[$parameter] =& $value; - if (!is_null($type)) { - $this->types[$parameter] = $type; - } - return MDB2_OK; - } - - // }}} - // {{{ bindParamArray() - - /** - * Set the values of multiple a parameter of a prepared query in bulk. - * - * @param array $values array thats specifies all necessary infromation - * for bindParam() the array elements must use keys corresponding to - * the number of the position of the parameter. - * @param array $types specifies the types of the fields - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - * @see bindParam() - */ - function bindParamArray(&$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) { - $this->bindParam($parameter, $values[$parameter], $types[$key]); - } - return MDB2_OK; - } - - // }}} - // {{{ execute() - - /** - * Execute a prepared query statement. - * - * @param array $values array thats specifies all necessary infromation - * for bindParam() the array elements must use keys corresponding to - * the number of the position of the parameter. - * @param mixed $result_class string which specifies which result class to use - * @param mixed $result_wrap_class string which specifies which class to wrap results in - * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function &execute($values = null, $result_class = true, $result_wrap_class = false) - { - if (!empty($values)) { - $this->bindParamArray($values); - } - $result =& $this->_execute($result_class, $result_wrap_class); - if (is_numeric($result)) { - $this->rownum = $result - 1; - } - return $result; - } - - // }}} - // {{{ _execute() - - /** - * Execute a prepared query statement helper method. - * - * @param mixed $result_class string which specifies which result class to use - * @param mixed $result_wrap_class string which specifies which class to wrap results in - * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure - * @access private - */ - function &_execute($result_class = true, $result_wrap_class = false) - { - $query = ''; - $last_position = $i = 0; - foreach ($this->values as $parameter => $value) { - $current_position = $this->statement[$parameter]; - $query.= substr($this->query, $last_position, $current_position - $last_position); - if (!isset($value)) { - $value_quoted = 'NULL'; - } else { - $type = array_key_exists($parameter, $this->types) ? $this->types[$parameter] : null; - $value_quoted = $this->db->quote($value, $type); - if (PEAR::isError($value_quoted)) { - return $value_quoted; - } - } - $query.= $value_quoted; - $last_position = $current_position + 1; - ++$i; - } - $query.= substr($this->query, $last_position); - - $this->db->row_offset = $this->row_offset; - $this->db->row_limit = $this->row_limit; - $result =& $this->db->query($query, $this->result_types, $result_class, $result_wrap_class); - return $result; - } - - // }}} - // {{{ free() - - /** - * Release resources allocated for the specified prepared query. - * - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function free() - { - return MDB2_OK; - } -} - -class MDB2_Module_Common -{ - /** - * contains the key to the global MDB2 instance array of the associated - * MDB2 instance - * - * @var integer - * @access protected - */ - var $db_index; - - // {{{ constructor - - /** - * Constructor - */ - function __construct($db_index) - { - $this->db_index = $db_index; - } - - function MDB2_Module_Common($db_index) - { - $this->__construct($db_index); - } - - - // }}} - // {{{ 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, null, null, 'could not find MDB2 instance'); - } - return $result; - } -} - -// }}} -// {{{ MDB2_closeOpenTransactions() - -/** - * close any open transactions form persistant connections - * - * @return void - * @access public - */ -function MDB2_closeOpenTransactions() -{ - reset($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(); - } - } -} - -// }}} -// {{{ MDB2_defaultDebugOutput() - -/** - * default debug output handler - * - * @param object $db reference to an MDB2 database object - * @param string $message message that should be appended to the debug - * variable - * @return string the corresponding error message, of false - * if the error code was unknown - * @access public - */ -function MDB2_defaultDebugOutput(&$db, $scope, $message) -{ - $db->debug_output.= $scope.'('.$db->db_index.'): '; - $db->debug_output.= $message.$db->getOption('log_line_break'); -} - -?>
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