2 // vim: set et ts=4 sw=4 fdm=marker:
3 // +----------------------------------------------------------------------+
4 // | PHP versions 4 and 5 |
5 // +----------------------------------------------------------------------+
6 // | Copyright (c) 1998-2007 Manuel Lemos, Tomas V.V.Cox, |
7 // | Stig. S. Bakken, Lukas Smith |
8 // | All rights reserved. |
9 // +----------------------------------------------------------------------+
10 // | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB |
11 // | API as well as database abstraction for PHP applications. |
12 // | This LICENSE is in the BSD license style. |
14 // | Redistribution and use in source and binary forms, with or without |
15 // | modification, are permitted provided that the following conditions |
18 // | Redistributions of source code must retain the above copyright |
19 // | notice, this list of conditions and the following disclaimer. |
21 // | Redistributions in binary form must reproduce the above copyright |
22 // | notice, this list of conditions and the following disclaimer in the |
23 // | documentation and/or other materials provided with the distribution. |
25 // | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
26 // | Lukas Smith nor the names of his contributors may be used to endorse |
27 // | or promote products derived from this software without specific prior|
28 // | written permission. |
30 // | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
31 // | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
32 // | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
33 // | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
34 // | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
35 // | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
36 // | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
37 // | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
38 // | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
39 // | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
40 // | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
41 // | POSSIBILITY OF SUCH DAMAGE. |
42 // +----------------------------------------------------------------------+
43 // | Author: Lukas Smith <smith@pooteeweet.org> |
44 // +----------------------------------------------------------------------+
46 // $Id: MDB2.php 328183 2012-10-29 15:10:42Z danielc $
52 * @author Lukas Smith <smith@pooteeweet.org>
55 require_once 'PEAR.php';
57 // {{{ Error constants
60 * The method mapErrorCode in each MDB2_dbtype implementation maps
61 * native error codes to one of these.
63 * If you add an error code here, make sure you also add a textual
64 * version of it in MDB2::errorMessage().
67 define('MDB2_OK', true);
68 define('MDB2_ERROR', -1);
69 define('MDB2_ERROR_SYNTAX', -2);
70 define('MDB2_ERROR_CONSTRAINT', -3);
71 define('MDB2_ERROR_NOT_FOUND', -4);
72 define('MDB2_ERROR_ALREADY_EXISTS', -5);
73 define('MDB2_ERROR_UNSUPPORTED', -6);
74 define('MDB2_ERROR_MISMATCH', -7);
75 define('MDB2_ERROR_INVALID', -8);
76 define('MDB2_ERROR_NOT_CAPABLE', -9);
77 define('MDB2_ERROR_TRUNCATED', -10);
78 define('MDB2_ERROR_INVALID_NUMBER', -11);
79 define('MDB2_ERROR_INVALID_DATE', -12);
80 define('MDB2_ERROR_DIVZERO', -13);
81 define('MDB2_ERROR_NODBSELECTED', -14);
82 define('MDB2_ERROR_CANNOT_CREATE', -15);
83 define('MDB2_ERROR_CANNOT_DELETE', -16);
84 define('MDB2_ERROR_CANNOT_DROP', -17);
85 define('MDB2_ERROR_NOSUCHTABLE', -18);
86 define('MDB2_ERROR_NOSUCHFIELD', -19);
87 define('MDB2_ERROR_NEED_MORE_DATA', -20);
88 define('MDB2_ERROR_NOT_LOCKED', -21);
89 define('MDB2_ERROR_VALUE_COUNT_ON_ROW', -22);
90 define('MDB2_ERROR_INVALID_DSN', -23);
91 define('MDB2_ERROR_CONNECT_FAILED', -24);
92 define('MDB2_ERROR_EXTENSION_NOT_FOUND',-25);
93 define('MDB2_ERROR_NOSUCHDB', -26);
94 define('MDB2_ERROR_ACCESS_VIOLATION', -27);
95 define('MDB2_ERROR_CANNOT_REPLACE', -28);
96 define('MDB2_ERROR_CONSTRAINT_NOT_NULL',-29);
97 define('MDB2_ERROR_DEADLOCK', -30);
98 define('MDB2_ERROR_CANNOT_ALTER', -31);
99 define('MDB2_ERROR_MANAGER', -32);
100 define('MDB2_ERROR_MANAGER_PARSE', -33);
101 define('MDB2_ERROR_LOADMODULE', -34);
102 define('MDB2_ERROR_INSUFFICIENT_DATA', -35);
103 define('MDB2_ERROR_NO_PERMISSION', -36);
104 define('MDB2_ERROR_DISCONNECT_FAILED', -37);
107 // {{{ Verbose constants
109 * These are just helper constants to more verbosely express parameters to prepare()
112 define('MDB2_PREPARE_MANIP', false);
113 define('MDB2_PREPARE_RESULT', null);
116 // {{{ Fetchmode constants
119 * This is a special constant that tells MDB2 the user hasn't specified
120 * any particular get mode, so the default should be used.
122 define('MDB2_FETCHMODE_DEFAULT', 0);
125 * Column data indexed by numbers, ordered from 0 and up
127 define('MDB2_FETCHMODE_ORDERED', 1);
130 * Column data indexed by column names
132 define('MDB2_FETCHMODE_ASSOC', 2);
135 * Column data as object properties
137 define('MDB2_FETCHMODE_OBJECT', 3);
140 * For multi-dimensional results: normally the first level of arrays
141 * is the row number, and the second level indexed by column number or name.
142 * MDB2_FETCHMODE_FLIPPED switches this order, so the first level of arrays
143 * is the column name, and the second level the row number.
145 define('MDB2_FETCHMODE_FLIPPED', 4);
148 // {{{ Portability mode constants
151 * Portability: turn off all portability features.
152 * @see MDB2_Driver_Common::setOption()
154 define('MDB2_PORTABILITY_NONE', 0);
157 * Portability: convert names of tables and fields to case defined in the
158 * "field_case" option when using the query*(), fetch*() and tableInfo() methods.
159 * @see MDB2_Driver_Common::setOption()
161 define('MDB2_PORTABILITY_FIX_CASE', 1);
164 * Portability: right trim the data output by query*() and fetch*().
165 * @see MDB2_Driver_Common::setOption()
167 define('MDB2_PORTABILITY_RTRIM', 2);
170 * Portability: force reporting the number of rows deleted.
171 * @see MDB2_Driver_Common::setOption()
173 define('MDB2_PORTABILITY_DELETE_COUNT', 4);
176 * Portability: not needed in MDB2 (just left here for compatibility to DB)
177 * @see MDB2_Driver_Common::setOption()
179 define('MDB2_PORTABILITY_NUMROWS', 8);
182 * Portability: makes certain error messages in certain drivers compatible
183 * with those from other DBMS's.
185 * + mysql, mysqli: change unique/primary key constraints
186 * MDB2_ERROR_ALREADY_EXISTS -> MDB2_ERROR_CONSTRAINT
188 * + odbc(access): MS's ODBC driver reports 'no such field' as code
189 * 07001, which means 'too few parameters.' When this option is on
190 * that code gets mapped to MDB2_ERROR_NOSUCHFIELD.
192 * @see MDB2_Driver_Common::setOption()
194 define('MDB2_PORTABILITY_ERRORS', 16);
197 * Portability: convert empty values to null strings in data output by
198 * query*() and fetch*().
199 * @see MDB2_Driver_Common::setOption()
201 define('MDB2_PORTABILITY_EMPTY_TO_NULL', 32);
204 * Portability: removes database/table qualifiers from associative indexes
205 * @see MDB2_Driver_Common::setOption()
207 define('MDB2_PORTABILITY_FIX_ASSOC_FIELD_NAMES', 64);
210 * Portability: turn on all portability features.
211 * @see MDB2_Driver_Common::setOption()
213 define('MDB2_PORTABILITY_ALL', 127);
216 // {{{ Globals for class instance tracking
219 * These are global variables that are used to track the various class instances
222 $GLOBALS['_MDB2_databases'] = array();
223 $GLOBALS['_MDB2_dsninfo_default'] = array(
240 * The main 'MDB2' class is simply a container class with some static
241 * methods for creating DB objects as well as some utility functions
242 * common to all parts of DB.
244 * The object model of MDB2 is as follows (indentation means inheritance):
246 * MDB2 The main MDB2 class. This is simply a utility class
247 * with some 'static' methods for creating MDB2 objects as
248 * well as common utility functions for other MDB2 classes.
250 * MDB2_Driver_Common The base for each MDB2 implementation. Provides default
251 * | implementations (in OO lingo virtual methods) for
252 * | the actual DB implementations as well as a bunch of
253 * | query utility functions.
255 * +-MDB2_Driver_mysql The MDB2 implementation for MySQL. Inherits MDB2_Driver_Common.
256 * When calling MDB2::factory or MDB2::connect for MySQL
257 * connections, the object returned is an instance of this
259 * +-MDB2_Driver_pgsql The MDB2 implementation for PostGreSQL. Inherits MDB2_Driver_Common.
260 * When calling MDB2::factory or MDB2::connect for PostGreSQL
261 * connections, the object returned is an instance of this
266 * @author Lukas Smith <smith@pooteeweet.org>
270 // {{{ function setOptions($db, $options)
273 * set option array in an exiting database object
275 * @param MDB2_Driver_Common MDB2 object
276 * @param array An associative array of option names and their values.
278 * @return mixed MDB2_OK or a PEAR Error object
282 static function setOptions($db, $options)
284 if (is_array($options)) {
285 foreach ($options as $option => $value) {
286 $test = $db->setOption($option, $value);
287 if (MDB2::isError($test)) {
296 // {{{ function classExists($classname)
299 * Checks if a class exists without triggering __autoload
301 * @param string classname
303 * @return bool true success and false on error
307 static function classExists($classname)
309 return class_exists($classname, false);
313 // {{{ function loadClass($class_name, $debug)
316 * Loads a PEAR class.
318 * @param string classname to load
319 * @param bool if errors should be suppressed
321 * @return mixed true success or PEAR_Error on failure
325 static function loadClass($class_name, $debug)
327 if (!MDB2::classExists($class_name)) {
328 $file_name = str_replace('_', DIRECTORY_SEPARATOR, $class_name).'.php';
330 $include = include_once($file_name);
332 $include = @include_once($file_name);
335 if (!MDB2::fileExists($file_name)) {
336 $msg = "unable to find package '$class_name' file '$file_name'";
338 $msg = "unable to load class '$class_name' from file '$file_name'";
340 $err = MDB2::raiseError(MDB2_ERROR_NOT_FOUND, null, null, $msg);
343 if (!MDB2::classExists($class_name)) {
344 $msg = "unable to load class '$class_name' from file '$file_name'";
345 $err = MDB2::raiseError(MDB2_ERROR_NOT_FOUND, null, null, $msg);
353 // {{{ function factory($dsn, $options = false)
356 * Create a new MDB2 object for the specified database type
358 * @param mixed 'data source name', see the MDB2::parseDSN
359 * method for a description of the dsn format.
360 * Can also be specified as an array of the
361 * format returned by MDB2::parseDSN.
362 * @param array An associative array of option names and
365 * @return mixed a newly created MDB2 object, or false on error
369 static function factory($dsn, $options = false)
371 $dsninfo = MDB2::parseDSN($dsn);
372 if (empty($dsninfo['phptype'])) {
373 $err = MDB2::raiseError(MDB2_ERROR_NOT_FOUND,
374 null, null, 'no RDBMS driver specified');
377 $class_name = 'MDB2_Driver_'.$dsninfo['phptype'];
379 $debug = (!empty($options['debug']));
380 $err = MDB2::loadClass($class_name, $debug);
381 if (MDB2::isError($err)) {
385 $db = new $class_name();
386 $db->setDSN($dsninfo);
387 $err = MDB2::setOptions($db, $options);
388 if (MDB2::isError($err)) {
396 // {{{ function connect($dsn, $options = false)
399 * Create a new MDB2_Driver_* connection object and connect to the specified
402 * @param mixed $dsn 'data source name', see the MDB2::parseDSN
403 * method for a description of the dsn format.
404 * Can also be specified as an array of the
405 * format returned by MDB2::parseDSN.
406 * @param array $options An associative array of option names and
409 * @return mixed a newly created MDB2 connection object, or a MDB2
410 * error object on error
413 * @see MDB2::parseDSN
415 static function connect($dsn, $options = false)
417 $db = MDB2::factory($dsn, $options);
418 if (MDB2::isError($db)) {
422 $err = $db->connect();
423 if (MDB2::isError($err)) {
424 $dsn = $db->getDSN('string', 'xxx');
426 $err->addUserInfo($dsn);
434 // {{{ function singleton($dsn = null, $options = false)
437 * Returns a MDB2 connection with the requested DSN.
438 * A new MDB2 connection object is only created if no object with the
439 * requested DSN exists yet.
441 * @param mixed 'data source name', see the MDB2::parseDSN
442 * method for a description of the dsn format.
443 * Can also be specified as an array of the
444 * format returned by MDB2::parseDSN.
445 * @param array An associative array of option names and
448 * @return mixed a newly created MDB2 connection object, or a MDB2
449 * error object on error
452 * @see MDB2::parseDSN
454 static function singleton($dsn = null, $options = false)
457 $dsninfo = MDB2::parseDSN($dsn);
458 $dsninfo = array_merge($GLOBALS['_MDB2_dsninfo_default'], $dsninfo);
459 $keys = array_keys($GLOBALS['_MDB2_databases']);
460 for ($i=0, $j=count($keys); $i<$j; ++$i) {
461 if (isset($GLOBALS['_MDB2_databases'][$keys[$i]])) {
462 $tmp_dsn = $GLOBALS['_MDB2_databases'][$keys[$i]]->getDSN('array');
463 if (count(array_diff_assoc($tmp_dsn, $dsninfo)) == 0) {
464 MDB2::setOptions($GLOBALS['_MDB2_databases'][$keys[$i]], $options);
465 return $GLOBALS['_MDB2_databases'][$keys[$i]];
469 } elseif (is_array($GLOBALS['_MDB2_databases']) && reset($GLOBALS['_MDB2_databases'])) {
470 return $GLOBALS['_MDB2_databases'][key($GLOBALS['_MDB2_databases'])];
472 $db = MDB2::factory($dsn, $options);
477 // {{{ function areEquals()
480 * It looks like there's a memory leak in array_diff() in PHP 5.1.x,
481 * so use this method instead.
482 * @see http://pear.php.net/bugs/bug.php?id=11790
488 static function areEquals($arr1, $arr2)
490 if (count($arr1) != count($arr2)) {
493 foreach (array_keys($arr1) as $k) {
494 if (!array_key_exists($k, $arr2) || $arr1[$k] != $arr2[$k]) {
502 // {{{ function loadFile($file)
505 * load a file (like 'Date')
507 * @param string $file name of the file in the MDB2 directory (without '.php')
509 * @return string name of the file that was included
513 static function loadFile($file)
515 $file_name = 'MDB2'.DIRECTORY_SEPARATOR.$file.'.php';
516 if (!MDB2::fileExists($file_name)) {
517 return MDB2::raiseError(MDB2_ERROR_NOT_FOUND, null, null,
518 'unable to find: '.$file_name);
520 if (!include_once($file_name)) {
521 return MDB2::raiseError(MDB2_ERROR_NOT_FOUND, null, null,
522 'unable to load driver class: '.$file_name);
528 // {{{ function apiVersion()
531 * Return the MDB2 API version
533 * @return string the MDB2 API version number
537 static function apiVersion()
543 // {{{ function &raiseError($code = null, $mode = null, $options = null, $userinfo = null)
546 * This method is used to communicate an error and invoke error
547 * callbacks etc. Basically a wrapper for PEAR::raiseError
548 * without the message string.
550 * @param mixed int error code
552 * @param int error mode, see PEAR_Error docs
554 * @param mixed If error mode is PEAR_ERROR_TRIGGER, this is the
555 * error level (E_USER_NOTICE etc). If error mode is
556 * PEAR_ERROR_CALLBACK, this is the callback function,
557 * either as a function name, or as an array of an
558 * object and method name. For other error modes this
559 * parameter is ignored.
561 * @param string Extra debug information. Defaults to the last
562 * query and native error code.
564 * @return PEAR_Error instance of a PEAR Error object
569 public static function &raiseError($code = null,
578 $err =& $pear->raiseError(null, $code, $mode, $options, $userinfo, 'MDB2_Error', true);
583 // {{{ function isError($data, $code = null)
586 * Tell whether a value is a MDB2 error.
588 * @param mixed the value to test
589 * @param int if is an error object, return true
590 * only if $code is a string and
591 * $db->getMessage() == $code or
592 * $code is an integer and $db->getCode() == $code
594 * @return bool true if parameter is an error
598 static function isError($data, $code = null)
600 if ($data instanceof MDB2_Error) {
601 if (null === $code) {
604 if (is_string($code)) {
605 return $data->getMessage() === $code;
607 return in_array($data->getCode(), (array)$code);
613 // {{{ function isConnection($value)
616 * Tell whether a value is a MDB2 connection
618 * @param mixed value to test
620 * @return bool whether $value is a MDB2 connection
623 static function isConnection($value)
625 return ($value instanceof MDB2_Driver_Common);
629 // {{{ function isResult($value)
632 * Tell whether a value is a MDB2 result
634 * @param mixed $value value to test
636 * @return bool whether $value is a MDB2 result
640 static function isResult($value)
642 return ($value instanceof MDB2_Result);
646 // {{{ function isResultCommon($value)
649 * Tell whether a value is a MDB2 result implementing the common interface
651 * @param mixed $value value to test
653 * @return bool whether $value is a MDB2 result implementing the common interface
657 static function isResultCommon($value)
659 return ($value instanceof MDB2_Result_Common);
663 // {{{ function isStatement($value)
666 * Tell whether a value is a MDB2 statement interface
668 * @param mixed value to test
670 * @return bool whether $value is a MDB2 statement interface
674 static function isStatement($value)
676 return ($value instanceof MDB2_Statement_Common);
680 // {{{ function errorMessage($value = null)
683 * Return a textual error message for a MDB2 error code
685 * @param int|array integer error code,
686 null to get the current error code-message map,
687 or an array with a new error code-message map
689 * @return string error message, or false if the error code was
694 static function errorMessage($value = null)
696 static $errorMessages;
698 if (is_array($value)) {
699 $errorMessages = $value;
703 if (!isset($errorMessages)) {
704 $errorMessages = array(
705 MDB2_OK => 'no error',
706 MDB2_ERROR => 'unknown error',
707 MDB2_ERROR_ALREADY_EXISTS => 'already exists',
708 MDB2_ERROR_CANNOT_CREATE => 'can not create',
709 MDB2_ERROR_CANNOT_ALTER => 'can not alter',
710 MDB2_ERROR_CANNOT_REPLACE => 'can not replace',
711 MDB2_ERROR_CANNOT_DELETE => 'can not delete',
712 MDB2_ERROR_CANNOT_DROP => 'can not drop',
713 MDB2_ERROR_CONSTRAINT => 'constraint violation',
714 MDB2_ERROR_CONSTRAINT_NOT_NULL=> 'null value violates not-null constraint',
715 MDB2_ERROR_DIVZERO => 'division by zero',
716 MDB2_ERROR_INVALID => 'invalid',
717 MDB2_ERROR_INVALID_DATE => 'invalid date or time',
718 MDB2_ERROR_INVALID_NUMBER => 'invalid number',
719 MDB2_ERROR_MISMATCH => 'mismatch',
720 MDB2_ERROR_NODBSELECTED => 'no database selected',
721 MDB2_ERROR_NOSUCHFIELD => 'no such field',
722 MDB2_ERROR_NOSUCHTABLE => 'no such table',
723 MDB2_ERROR_NOT_CAPABLE => 'MDB2 backend not capable',
724 MDB2_ERROR_NOT_FOUND => 'not found',
725 MDB2_ERROR_NOT_LOCKED => 'not locked',
726 MDB2_ERROR_SYNTAX => 'syntax error',
727 MDB2_ERROR_UNSUPPORTED => 'not supported',
728 MDB2_ERROR_VALUE_COUNT_ON_ROW => 'value count on row',
729 MDB2_ERROR_INVALID_DSN => 'invalid DSN',
730 MDB2_ERROR_CONNECT_FAILED => 'connect failed',
731 MDB2_ERROR_NEED_MORE_DATA => 'insufficient data supplied',
732 MDB2_ERROR_EXTENSION_NOT_FOUND=> 'extension not found',
733 MDB2_ERROR_NOSUCHDB => 'no such database',
734 MDB2_ERROR_ACCESS_VIOLATION => 'insufficient permissions',
735 MDB2_ERROR_LOADMODULE => 'error while including on demand module',
736 MDB2_ERROR_TRUNCATED => 'truncated',
737 MDB2_ERROR_DEADLOCK => 'deadlock detected',
738 MDB2_ERROR_NO_PERMISSION => 'no permission',
739 MDB2_ERROR_DISCONNECT_FAILED => 'disconnect failed',
743 if (null === $value) {
744 return $errorMessages;
747 if (MDB2::isError($value)) {
748 $value = $value->getCode();
751 return isset($errorMessages[$value]) ?
752 $errorMessages[$value] : $errorMessages[MDB2_ERROR];
756 // {{{ function parseDSN($dsn)
759 * Parse a data source name.
761 * Additional keys can be added by appending a URI query string to the
764 * The format of the supplied DSN is in its fullest form:
766 * phptype(dbsyntax)://username:password@protocol+hostspec/database?option=8&another=true
769 * Most variations are allowed:
771 * phptype://username:password@protocol+hostspec:110//usr/db_file.db?mode=0644
772 * phptype://username:password@hostspec/database_name
773 * phptype://username:password@hostspec
774 * phptype://username@hostspec
775 * phptype://hostspec/database
781 * @param string Data Source Name to be parsed
783 * @return array an associative array with the following keys:
784 * + phptype: Database backend used in PHP (mysql, odbc etc.)
785 * + dbsyntax: Database used with regards to SQL syntax etc.
786 * + protocol: Communication protocol to use (tcp, unix etc.)
787 * + hostspec: Host specification (hostname[:port])
788 * + database: Database to use on the DBMS server
789 * + username: User name for login
790 * + password: Password for login
793 * @author Tomas V.V.Cox <cox@idecnet.com>
795 static function parseDSN($dsn)
797 $parsed = $GLOBALS['_MDB2_dsninfo_default'];
799 if (is_array($dsn)) {
800 $dsn = array_merge($parsed, $dsn);
801 if (!$dsn['dbsyntax']) {
802 $dsn['dbsyntax'] = $dsn['phptype'];
807 // Find phptype and dbsyntax
808 if (($pos = strpos($dsn, '://')) !== false) {
809 $str = substr($dsn, 0, $pos);
810 $dsn = substr($dsn, $pos + 3);
816 // Get phptype and dbsyntax
817 // $str => phptype(dbsyntax)
818 if (preg_match('|^(.+?)\((.*?)\)$|', $str, $arr)) {
819 $parsed['phptype'] = $arr[1];
820 $parsed['dbsyntax'] = !$arr[2] ? $arr[1] : $arr[2];
822 $parsed['phptype'] = $str;
823 $parsed['dbsyntax'] = $str;
830 // Get (if found): username and password
831 // $dsn => username:password@protocol+hostspec/database
832 if (($at = strrpos($dsn,'@')) !== false) {
833 $str = substr($dsn, 0, $at);
834 $dsn = substr($dsn, $at + 1);
835 if (($pos = strpos($str, ':')) !== false) {
836 $parsed['username'] = rawurldecode(substr($str, 0, $pos));
837 $parsed['password'] = rawurldecode(substr($str, $pos + 1));
839 $parsed['username'] = rawurldecode($str);
843 // Find protocol and hostspec
845 // $dsn => proto(proto_opts)/database
846 if (preg_match('|^([^(]+)\((.*?)\)/?(.*?)$|', $dsn, $match)) {
848 $proto_opts = $match[2] ? $match[2] : false;
851 // $dsn => protocol+hostspec/database (old format)
853 if (strpos($dsn, '+') !== false) {
854 list($proto, $dsn) = explode('+', $dsn, 2);
856 if ( strpos($dsn, '//') === 0
857 && strpos($dsn, '/', 2) !== false
858 && $parsed['phptype'] == 'oci8'
860 //oracle's "Easy Connect" syntax:
861 //"username/password@[//]host[:port][/service_name]"
862 //e.g. "scott/tiger@//mymachine:1521/oracle"
864 $pos = strrpos($proto_opts, '/');
865 $dsn = substr($proto_opts, $pos + 1);
866 $proto_opts = substr($proto_opts, 0, $pos);
867 } elseif (strpos($dsn, '/') !== false) {
868 list($proto_opts, $dsn) = explode('/', $dsn, 2);
875 // process the different protocol options
876 $parsed['protocol'] = (!empty($proto)) ? $proto : 'tcp';
877 $proto_opts = rawurldecode($proto_opts);
878 if (strpos($proto_opts, ':') !== false) {
879 list($proto_opts, $parsed['port']) = explode(':', $proto_opts);
881 if ($parsed['protocol'] == 'tcp') {
882 $parsed['hostspec'] = $proto_opts;
883 } elseif ($parsed['protocol'] == 'unix') {
884 $parsed['socket'] = $proto_opts;
891 if (($pos = strpos($dsn, '?')) === false) {
892 $parsed['database'] = rawurldecode($dsn);
893 // /database?param1=value1¶m2=value2
895 $parsed['database'] = rawurldecode(substr($dsn, 0, $pos));
896 $dsn = substr($dsn, $pos + 1);
897 if (strpos($dsn, '&') !== false) {
898 $opts = explode('&', $dsn);
899 } else { // database?param1=value1
902 foreach ($opts as $opt) {
903 list($key, $value) = explode('=', $opt);
904 if (!array_key_exists($key, $parsed) || false === $parsed[$key]) {
905 // don't allow params overwrite
906 $parsed[$key] = rawurldecode($value);
916 // {{{ function fileExists($file)
919 * Checks if a file exists in the include path
921 * @param string filename
923 * @return bool true success and false on error
927 static function fileExists($file)
929 // safe_mode does notwork with is_readable()
930 if (!@ini_get('safe_mode')) {
931 $dirs = explode(PATH_SEPARATOR, ini_get('include_path'));
932 foreach ($dirs as $dir) {
933 if (is_readable($dir . DIRECTORY_SEPARATOR . $file)) {
938 $fp = @fopen($file, 'r', true);
939 if (is_resource($fp)) {
950 // {{{ class MDB2_Error extends PEAR_Error
953 * MDB2_Error implements a class for reporting portable database error
958 * @author Stig Bakken <ssb@fast.no>
960 class MDB2_Error extends PEAR_Error
962 // {{{ constructor: function MDB2_Error($code = MDB2_ERROR, $mode = PEAR_ERROR_RETURN, $level = E_USER_NOTICE, $debuginfo = null)
965 * MDB2_Error constructor.
967 * @param mixed MDB2 error code, or string with error message.
968 * @param int what 'error mode' to operate in
969 * @param int what error level to use for $mode & PEAR_ERROR_TRIGGER
970 * @param mixed additional debug info, such as the last query
972 function __construct($code = MDB2_ERROR, $mode = PEAR_ERROR_RETURN,
973 $level = E_USER_NOTICE, $debuginfo = null, $dummy = null)
975 if (null === $code) {
978 $this->PEAR_Error('MDB2 Error: '.MDB2::errorMessage($code), $code,
979 $mode, $level, $debuginfo);
986 // {{{ class MDB2_Driver_Common extends PEAR
989 * MDB2_Driver_Common: Base class that is extended by each MDB2 driver
993 * @author Lukas Smith <smith@pooteeweet.org>
995 class MDB2_Driver_Common
997 // {{{ Variables (Properties)
1000 * @var MDB2_Driver_Datatype_Common
1005 * @var MDB2_Extended
1010 * @var MDB2_Driver_Function_Common
1015 * @var MDB2_Driver_Manager_Common
1020 * @var MDB2_Driver_Native_Commonn
1025 * @var MDB2_Driver_Reverse_Common
1030 * index of the MDB2 object within the $GLOBALS['_MDB2_databases'] array
1034 public $db_index = 0;
1037 * DSN used for the next query
1041 public $dsn = array();
1044 * DSN that was used to create the current connection
1048 public $connected_dsn = array();
1051 * connection resource
1055 public $connection = 0;
1058 * if the current opened connection is a persistent connection
1062 public $opened_persistent;
1065 * the name of the database for the next query
1069 public $database_name = '';
1072 * the name of the database currently selected
1076 public $connected_database_name = '';
1079 * server version information
1083 public $connected_server_info = '';
1086 * list of all supported features of the given driver
1090 public $supported = array(
1091 'sequences' => false,
1093 'affected_rows' => false,
1094 'summary_functions' => false,
1095 'order_by_text' => false,
1096 'transactions' => false,
1097 'savepoints' => false,
1098 'current_id' => false,
1099 'limit_queries' => false,
1102 'sub_selects' => false,
1103 'triggers' => false,
1104 'auto_increment' => false,
1105 'primary_key' => false,
1106 'result_introspection' => false,
1107 'prepared_statements' => false,
1108 'identifier_quoting' => false,
1109 'pattern_escaping' => false,
1110 'new_link' => false,
1114 * Array of supported options that can be passed to the MDB2 instance.
1116 * The options can be set during object creation, using
1117 * MDB2::connect(), MDB2::factory() or MDB2::singleton(). The options can
1118 * also be set after the object is created, using MDB2::setOptions() or
1119 * MDB2_Driver_Common::setOption().
1120 * The list of available option includes:
1122 * <li>$options['ssl'] -> boolean: determines if ssl should be used for connections</li>
1123 * <li>$options['field_case'] -> CASE_LOWER|CASE_UPPER: determines what case to force on field/table names</li>
1124 * <li>$options['disable_query'] -> boolean: determines if queries should be executed</li>
1125 * <li>$options['result_class'] -> string: class used for result sets</li>
1126 * <li>$options['buffered_result_class'] -> string: class used for buffered result sets</li>
1127 * <li>$options['result_wrap_class'] -> string: class used to wrap result sets into</li>
1128 * <li>$options['result_buffering'] -> boolean should results be buffered or not?</li>
1129 * <li>$options['fetch_class'] -> string: class to use when fetch mode object is used</li>
1130 * <li>$options['persistent'] -> boolean: persistent connection?</li>
1131 * <li>$options['debug'] -> integer: numeric debug level</li>
1132 * <li>$options['debug_handler'] -> string: function/method that captures debug messages</li>
1133 * <li>$options['debug_expanded_output'] -> bool: BC option to determine if more context information should be send to the debug handler</li>
1134 * <li>$options['default_text_field_length'] -> integer: default text field length to use</li>
1135 * <li>$options['lob_buffer_length'] -> integer: LOB buffer length</li>
1136 * <li>$options['log_line_break'] -> string: line-break format</li>
1137 * <li>$options['idxname_format'] -> string: pattern for index name</li>
1138 * <li>$options['seqname_format'] -> string: pattern for sequence name</li>
1139 * <li>$options['savepoint_format'] -> string: pattern for auto generated savepoint names</li>
1140 * <li>$options['statement_format'] -> string: pattern for prepared statement names</li>
1141 * <li>$options['seqcol_name'] -> string: sequence column name</li>
1142 * <li>$options['quote_identifier'] -> boolean: if identifier quoting should be done when check_option is used</li>
1143 * <li>$options['use_transactions'] -> boolean: if transaction use should be enabled</li>
1144 * <li>$options['decimal_places'] -> integer: number of decimal places to handle</li>
1145 * <li>$options['portability'] -> integer: portability constant</li>
1146 * <li>$options['modules'] -> array: short to long module name mapping for __call()</li>
1147 * <li>$options['emulate_prepared'] -> boolean: force prepared statements to be emulated</li>
1148 * <li>$options['datatype_map'] -> array: map user defined datatypes to other primitive datatypes</li>
1149 * <li>$options['datatype_map_callback'] -> array: callback function/method that should be called</li>
1150 * <li>$options['bindname_format'] -> string: regular expression pattern for named parameters</li>
1151 * <li>$options['multi_query'] -> boolean: determines if queries returning multiple result sets should be executed</li>
1152 * <li>$options['max_identifiers_length'] -> integer: max identifier length</li>
1153 * <li>$options['default_fk_action_onupdate'] -> string: default FOREIGN KEY ON UPDATE action ['RESTRICT'|'NO ACTION'|'SET DEFAULT'|'SET NULL'|'CASCADE']</li>
1154 * <li>$options['default_fk_action_ondelete'] -> string: default FOREIGN KEY ON DELETE action ['RESTRICT'|'NO ACTION'|'SET DEFAULT'|'SET NULL'|'CASCADE']</li>
1159 * @see MDB2::connect()
1160 * @see MDB2::factory()
1161 * @see MDB2::singleton()
1162 * @see MDB2_Driver_Common::setOption()
1164 public $options = array(
1166 'field_case' => CASE_LOWER,
1167 'disable_query' => false,
1168 'result_class' => 'MDB2_Result_%s',
1169 'buffered_result_class' => 'MDB2_BufferedResult_%s',
1170 'result_wrap_class' => false,
1171 'result_buffering' => true,
1172 'fetch_class' => 'stdClass',
1173 'persistent' => false,
1175 'debug_handler' => 'MDB2_defaultDebugOutput',
1176 'debug_expanded_output' => false,
1177 'default_text_field_length' => 4096,
1178 'lob_buffer_length' => 8192,
1179 'log_line_break' => "\n",
1180 'idxname_format' => '%s_idx',
1181 'seqname_format' => '%s_seq',
1182 'savepoint_format' => 'MDB2_SAVEPOINT_%s',
1183 'statement_format' => 'MDB2_STATEMENT_%1$s_%2$s',
1184 'seqcol_name' => 'sequence',
1185 'quote_identifier' => false,
1186 'use_transactions' => true,
1187 'decimal_places' => 2,
1188 'portability' => MDB2_PORTABILITY_ALL,
1197 'emulate_prepared' => false,
1198 'datatype_map' => array(),
1199 'datatype_map_callback' => array(),
1200 'nativetype_map_callback' => array(),
1201 'lob_allow_url_include' => false,
1202 'bindname_format' => '(?:\d+)|(?:[a-zA-Z][a-zA-Z0-9_]*)',
1203 'max_identifiers_length' => 30,
1204 'default_fk_action_onupdate' => 'RESTRICT',
1205 'default_fk_action_ondelete' => 'RESTRICT',
1213 public $string_quoting = array(
1217 'escape_pattern' => false,
1221 * identifier quoting
1225 public $identifier_quoting = array(
1236 public $sql_comments = array(
1237 array('start' => '--', 'end' => "\n", 'escape' => false),
1238 array('start' => '/*', 'end' => '*/', 'escape' => false),
1242 * comparision wildcards
1246 protected $wildcards = array('%', '_');
1249 * column alias keyword
1253 public $as_keyword = ' AS ';
1260 public $warnings = array();
1263 * string with the debugging information
1267 public $debug_output = '';
1270 * determine if there is an open transaction
1274 public $in_transaction = false;
1277 * the smart transaction nesting depth
1281 public $nested_transaction_counter = null;
1284 * the first error that occured inside a nested transaction
1285 * @var MDB2_Error|bool
1288 protected $has_transaction_error = false;
1291 * result offset used in the next query
1298 * result limit used in the next query
1305 * Database backend used in PHP (mysql, odbc etc.)
1312 * Database used with regards to SQL syntax etc.
1319 * the last query sent to the driver
1326 * the default fetchmode used
1330 public $fetchmode = MDB2_FETCHMODE_ORDERED;
1333 * array of module instances
1337 protected $modules = array();
1340 * determines of the PHP4 destructor emulation has been enabled yet
1344 protected $destructor_registered = true;
1352 // {{{ constructor: function __construct()
1357 function __construct()
1359 end($GLOBALS['_MDB2_databases']);
1360 $db_index = key($GLOBALS['_MDB2_databases']) + 1;
1361 $GLOBALS['_MDB2_databases'][$db_index] = &$this;
1362 $this->db_index = $db_index;
1363 $this->pear = new PEAR;
1367 // {{{ destructor: function __destruct()
1372 function __destruct()
1374 $this->disconnect(false);
1378 // {{{ function free()
1381 * Free the internal references so that the instance can be destroyed
1383 * @return bool true on success, false if result is invalid
1389 unset($GLOBALS['_MDB2_databases'][$this->db_index]);
1390 unset($this->db_index);
1395 // {{{ function __toString()
1398 * String conversation
1400 * @return string representation of the object
1404 function __toString()
1406 $info = get_class($this);
1407 $info.= ': (phptype = '.$this->phptype.', dbsyntax = '.$this->dbsyntax.')';
1408 if ($this->connection) {
1409 $info.= ' [connected]';
1415 // {{{ function errorInfo($error = null)
1418 * This method is used to collect information about an error
1420 * @param mixed error code or resource
1422 * @return array with MDB2 errorcode, native error code, native message
1426 function errorInfo($error = null)
1428 return array($error, null, null);
1432 // {{{ function &raiseError($code = null, $mode = null, $options = null, $userinfo = null)
1435 * This method is used to communicate an error and invoke error
1436 * callbacks etc. Basically a wrapper for PEAR::raiseError
1437 * without the message string.
1439 * @param mixed $code integer error code, or a PEAR error object (all
1440 * other parameters are ignored if this parameter is
1442 * @param int $mode error mode, see PEAR_Error docs
1443 * @param mixed $options If error mode is PEAR_ERROR_TRIGGER, this is the
1444 * error level (E_USER_NOTICE etc). If error mode is
1445 * PEAR_ERROR_CALLBACK, this is the callback function,
1446 * either as a function name, or as an array of an
1447 * object and method name. For other error modes this
1448 * parameter is ignored.
1449 * @param string $userinfo Extra debug information. Defaults to the last
1450 * query and native error code.
1451 * @param string $method name of the method that triggered the error
1452 * @param string $dummy1 not used
1453 * @param bool $dummy2 not used
1455 * @return PEAR_Error instance of a PEAR Error object
1459 function &raiseError($code = null,
1467 $userinfo = "[Error message: $userinfo]\n";
1468 // The error is yet a MDB2 error object
1469 if (MDB2::isError($code)) {
1470 // because we use the static PEAR::raiseError, our global
1471 // handler should be used if it is set
1472 if ((null === $mode) && !empty($this->_default_error_mode)) {
1473 $mode = $this->_default_error_mode;
1474 $options = $this->_default_error_options;
1476 if (null === $userinfo) {
1477 $userinfo = $code->getUserinfo();
1479 $code = $code->getCode();
1480 } elseif ($code == MDB2_ERROR_NOT_FOUND) {
1481 // extension not loaded: don't call $this->errorInfo() or the script
1483 } elseif (isset($this->connection)) {
1484 if (!empty($this->last_query)) {
1485 $userinfo.= "[Last executed query: {$this->last_query}]\n";
1487 $native_errno = $native_msg = null;
1488 list($code, $native_errno, $native_msg) = $this->errorInfo($code);
1489 if ((null !== $native_errno) && $native_errno !== '') {
1490 $userinfo.= "[Native code: $native_errno]\n";
1492 if ((null !== $native_msg) && $native_msg !== '') {
1493 $userinfo.= "[Native message: ". strip_tags($native_msg) ."]\n";
1495 if (null !== $method) {
1496 $userinfo = $method.': '.$userinfo;
1500 $err = $this->pear->raiseError(null, $code, $mode, $options, $userinfo, 'MDB2_Error', true);
1501 if ($err->getMode() !== PEAR_ERROR_RETURN
1502 && isset($this->nested_transaction_counter) && !$this->has_transaction_error) {
1503 $this->has_transaction_error = $err;
1509 // {{{ function resetWarnings()
1512 * reset the warning array
1518 function resetWarnings()
1520 $this->warnings = array();
1524 // {{{ function getWarnings()
1527 * Get all warnings in reverse order.
1528 * This means that the last warning is the first element in the array
1530 * @return array with warnings
1533 * @see resetWarnings()
1535 function getWarnings()
1537 return array_reverse($this->warnings);
1541 // {{{ function setFetchMode($fetchmode, $object_class = 'stdClass')
1544 * Sets which fetch mode should be used by default on queries
1545 * on this connection
1547 * @param int MDB2_FETCHMODE_ORDERED, MDB2_FETCHMODE_ASSOC
1548 * or MDB2_FETCHMODE_OBJECT
1549 * @param string the class name of the object to be returned
1550 * by the fetch methods when the
1551 * MDB2_FETCHMODE_OBJECT mode is selected.
1552 * If no class is specified by default a cast
1553 * to object from the assoc array row will be
1554 * done. There is also the possibility to use
1555 * and extend the 'MDB2_row' class.
1557 * @return mixed MDB2_OK or MDB2 Error Object
1560 * @see MDB2_FETCHMODE_ORDERED, MDB2_FETCHMODE_ASSOC, MDB2_FETCHMODE_OBJECT
1562 function setFetchMode($fetchmode, $object_class = 'stdClass')
1564 switch ($fetchmode) {
1565 case MDB2_FETCHMODE_OBJECT:
1566 $this->options['fetch_class'] = $object_class;
1567 case MDB2_FETCHMODE_ORDERED:
1568 case MDB2_FETCHMODE_ASSOC:
1569 $this->fetchmode = $fetchmode;
1572 return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
1573 'invalid fetchmode mode', __FUNCTION__);
1580 // {{{ function setOption($option, $value)
1583 * set the option for the db class
1585 * @param string option name
1586 * @param mixed value for the option
1588 * @return mixed MDB2_OK or MDB2 Error Object
1592 function setOption($option, $value)
1594 if (array_key_exists($option, $this->options)) {
1595 $this->options[$option] = $value;
1598 return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
1599 "unknown option $option", __FUNCTION__);
1603 // {{{ function getOption($option)
1606 * Returns the value of an option
1608 * @param string option name
1610 * @return mixed the option value or error object
1614 function getOption($option)
1616 if (array_key_exists($option, $this->options)) {
1617 return $this->options[$option];
1619 return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
1620 "unknown option $option", __FUNCTION__);
1624 // {{{ function debug($message, $scope = '', $is_manip = null)
1627 * set a debug message
1629 * @param string message that should be appended to the debug variable
1630 * @param string usually the method name that triggered the debug call:
1631 * for example 'query', 'prepare', 'execute', 'parameters',
1632 * 'beginTransaction', 'commit', 'rollback'
1633 * @param array contains context information about the debug() call
1634 * common keys are: is_manip, time, result etc.
1640 function debug($message, $scope = '', $context = array())
1642 if ($this->options['debug'] && $this->options['debug_handler']) {
1643 if (!$this->options['debug_expanded_output']) {
1644 if (!empty($context['when']) && $context['when'] !== 'pre') {
1647 $context = empty($context['is_manip']) ? false : $context['is_manip'];
1649 return call_user_func_array($this->options['debug_handler'], array(&$this, $scope, $message, $context));
1655 // {{{ function getDebugOutput()
1660 * @return string content of the debug_output class variable
1664 function getDebugOutput()
1666 return $this->debug_output;
1670 // {{{ function escape($text)
1673 * Quotes a string so it can be safely used in a query. It will quote
1674 * the text so it can safely be used within a query.
1676 * @param string the input string to quote
1677 * @param bool escape wildcards
1679 * @return string quoted string
1683 function escape($text, $escape_wildcards = false)
1685 if ($escape_wildcards) {
1686 $text = $this->escapePattern($text);
1689 $text = str_replace($this->string_quoting['end'], $this->string_quoting['escape'] . $this->string_quoting['end'], $text);
1694 // {{{ function escapePattern($text)
1697 * Quotes pattern (% and _) characters in a string)
1699 * @param string the input string to quote
1701 * @return string quoted string
1705 function escapePattern($text)
1707 if ($this->string_quoting['escape_pattern']) {
1708 $text = str_replace($this->string_quoting['escape_pattern'], $this->string_quoting['escape_pattern'] . $this->string_quoting['escape_pattern'], $text);
1709 foreach ($this->wildcards as $wildcard) {
1710 $text = str_replace($wildcard, $this->string_quoting['escape_pattern'] . $wildcard, $text);
1717 // {{{ function quoteIdentifier($str, $check_option = false)
1720 * Quote a string so it can be safely used as a table or column name
1722 * Delimiting style depends on which database driver is being used.
1724 * NOTE: just because you CAN use delimited identifiers doesn't mean
1725 * you SHOULD use them. In general, they end up causing way more
1726 * problems than they solve.
1728 * NOTE: if you have table names containing periods, don't use this method
1731 * Portability is broken by using the following characters inside
1732 * delimited identifiers:
1733 * + backtick (<kbd>`</kbd>) -- due to MySQL
1734 * + double quote (<kbd>"</kbd>) -- due to Oracle
1735 * + brackets (<kbd>[</kbd> or <kbd>]</kbd>) -- due to Access
1737 * Delimited identifiers are known to generally work correctly under
1738 * the following drivers:
1746 * InterBase doesn't seem to be able to use delimited identifiers
1747 * via PHP 4. They work fine under PHP 5.
1749 * @param string identifier name to be quoted
1750 * @param bool check the 'quote_identifier' option
1752 * @return string quoted identifier string
1756 function quoteIdentifier($str, $check_option = false)
1758 if ($check_option && !$this->options['quote_identifier']) {
1761 $str = str_replace($this->identifier_quoting['end'], $this->identifier_quoting['escape'] . $this->identifier_quoting['end'], $str);
1762 $parts = explode('.', $str);
1763 foreach (array_keys($parts) as $k) {
1764 $parts[$k] = $this->identifier_quoting['start'] . $parts[$k] . $this->identifier_quoting['end'];
1766 return implode('.', $parts);
1770 // {{{ function getAsKeyword()
1773 * Gets the string to alias column
1775 * @return string to use when aliasing a column
1777 function getAsKeyword()
1779 return $this->as_keyword;
1783 // {{{ function getConnection()
1786 * Returns a native connection
1788 * @return mixed a valid MDB2 connection object,
1789 * or a MDB2 error object on error
1793 function getConnection()
1795 $result = $this->connect();
1796 if (MDB2::isError($result)) {
1799 return $this->connection;
1803 // {{{ function _fixResultArrayValues(&$row, $mode)
1806 * Do all necessary conversions on result arrays to fix DBMS quirks
1808 * @param array the array to be fixed (passed by reference)
1809 * @param array bit-wise addition of the required portability modes
1815 function _fixResultArrayValues(&$row, $mode)
1818 case MDB2_PORTABILITY_EMPTY_TO_NULL:
1819 foreach ($row as $key => $value) {
1820 if ($value === '') {
1825 case MDB2_PORTABILITY_RTRIM:
1826 foreach ($row as $key => $value) {
1827 if (is_string($value)) {
1828 $row[$key] = rtrim($value);
1832 case MDB2_PORTABILITY_FIX_ASSOC_FIELD_NAMES:
1834 foreach ($row as $key => $value) {
1835 $tmp_row[preg_replace('/^(?:.*\.)?([^.]+)$/', '\\1', $key)] = $value;
1839 case (MDB2_PORTABILITY_RTRIM + MDB2_PORTABILITY_EMPTY_TO_NULL):
1840 foreach ($row as $key => $value) {
1841 if ($value === '') {
1843 } elseif (is_string($value)) {
1844 $row[$key] = rtrim($value);
1848 case (MDB2_PORTABILITY_RTRIM + MDB2_PORTABILITY_FIX_ASSOC_FIELD_NAMES):
1850 foreach ($row as $key => $value) {
1851 if (is_string($value)) {
1852 $value = rtrim($value);
1854 $tmp_row[preg_replace('/^(?:.*\.)?([^.]+)$/', '\\1', $key)] = $value;
1858 case (MDB2_PORTABILITY_EMPTY_TO_NULL + MDB2_PORTABILITY_FIX_ASSOC_FIELD_NAMES):
1860 foreach ($row as $key => $value) {
1861 if ($value === '') {
1864 $tmp_row[preg_replace('/^(?:.*\.)?([^.]+)$/', '\\1', $key)] = $value;
1868 case (MDB2_PORTABILITY_RTRIM + MDB2_PORTABILITY_EMPTY_TO_NULL + MDB2_PORTABILITY_FIX_ASSOC_FIELD_NAMES):
1870 foreach ($row as $key => $value) {
1871 if ($value === '') {
1873 } elseif (is_string($value)) {
1874 $value = rtrim($value);
1876 $tmp_row[preg_replace('/^(?:.*\.)?([^.]+)$/', '\\1', $key)] = $value;
1884 // {{{ function loadModule($module, $property = null, $phptype_specific = null)
1889 * @param string name of the module that should be loaded
1890 * (only used for error messages)
1891 * @param string name of the property into which the class will be loaded
1892 * @param bool if the class to load for the module is specific to the
1895 * @return object on success a reference to the given module is returned
1896 * and on failure a PEAR error
1900 function loadModule($module, $property = null, $phptype_specific = null)
1903 $property = strtolower($module);
1906 if (!isset($this->{$property})) {
1907 $version = $phptype_specific;
1908 if ($phptype_specific !== false) {
1910 $class_name = 'MDB2_Driver_'.$module.'_'.$this->phptype;
1911 $file_name = str_replace('_', DIRECTORY_SEPARATOR, $class_name).'.php';
1913 if ($phptype_specific === false
1914 || (!MDB2::classExists($class_name) && !MDB2::fileExists($file_name))
1917 $class_name = 'MDB2_'.$module;
1918 $file_name = str_replace('_', DIRECTORY_SEPARATOR, $class_name).'.php';
1921 $err = MDB2::loadClass($class_name, $this->getOption('debug'));
1922 if (MDB2::isError($err)) {
1926 // load module in a specific version
1928 if (method_exists($class_name, 'getClassName')) {
1929 $class_name_new = call_user_func(array($class_name, 'getClassName'), $this->db_index);
1930 if ($class_name != $class_name_new) {
1931 $class_name = $class_name_new;
1932 $err = MDB2::loadClass($class_name, $this->getOption('debug'));
1933 if (MDB2::isError($err)) {
1940 if (!MDB2::classExists($class_name)) {
1941 $err = $this->raiseError(MDB2_ERROR_LOADMODULE, null, null,
1942 "unable to load module '$module' into property '$property'", __FUNCTION__);
1945 $this->{$property} = new $class_name($this->db_index);
1946 $this->modules[$module] = $this->{$property};
1948 // this will be used in the connect method to determine if the module
1949 // needs to be loaded with a different version if the server
1950 // version changed in between connects
1951 $this->loaded_version_modules[] = $property;
1955 return $this->{$property};
1959 // {{{ function __call($method, $params)
1962 * Calls a module method using the __call magic method
1964 * @param string Method name.
1965 * @param array Arguments.
1967 * @return mixed Returned value.
1969 function __call($method, $params)
1972 if (preg_match('/^([a-z]+)([A-Z])(.*)$/', $method, $match)
1973 && isset($this->options['modules'][$match[1]])
1975 $module = $this->options['modules'][$match[1]];
1976 $method = strtolower($match[2]).$match[3];
1977 if (!isset($this->modules[$module]) || !is_object($this->modules[$module])) {
1978 $result = $this->loadModule($module);
1979 if (MDB2::isError($result)) {
1984 foreach ($this->modules as $key => $foo) {
1985 if (is_object($this->modules[$key])
1986 && method_exists($this->modules[$key], $method)
1993 if (null !== $module) {
1994 return call_user_func_array(array(&$this->modules[$module], $method), $params);
1997 $class = get_class($this);
1998 $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
1999 $loc = 'in ' . $trace[0]['file'] . ' on line ' . $trace[0]['line'];
2000 if ($method == 'isError') {
2001 trigger_error("Deprecated: $class::isError() is deprecated, use MDB2::isError() $loc", E_USER_DEPRECATED);
2002 if (!array_key_exists(0, $params)) {
2003 trigger_error("Missing argument 1 for $class::$method, called $loc", E_USER_ERROR);
2005 return MDB2::isError($params[0]);
2007 trigger_error("Call to undefined function: $class::$method() $loc.", E_USER_ERROR);
2011 // {{{ function __callStatic($method, $params)
2014 * Calls a module method using the __callStatic magic method
2016 * @param string Method name.
2017 * @param array Arguments.
2019 * @return mixed Returned value.
2021 public static function __callStatic($method, $params)
2023 $class = get_called_class();
2024 $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
2025 $loc = 'in ' . $trace[0]['file'] . ' on line ' . $trace[0]['line'];
2026 if ($method == 'isError') {
2027 trigger_error("Deprecated: $class::isError() is deprecated, use MDB2::isError() $loc", E_USER_DEPRECATED);
2028 if (!array_key_exists(0, $params)) {
2029 trigger_error("Missing argument 1 for $class::$method, called $loc", E_USER_ERROR);
2031 return MDB2::isError($params[0]);
2033 trigger_error("Call to undefined function: $class::$method() $loc.", E_USER_ERROR);
2037 // {{{ function beginTransaction($savepoint = null)
2040 * Start a transaction or set a savepoint.
2042 * @param string name of a savepoint to set
2043 * @return mixed MDB2_OK on success, a MDB2 error on failure
2047 function beginTransaction($savepoint = null)
2049 $this->debug('Starting transaction', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
2050 return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
2051 'transactions are not supported', __FUNCTION__);
2055 // {{{ function commit($savepoint = null)
2058 * Commit the database changes done during a transaction that is in
2059 * progress or release a savepoint. This function may only be called when
2060 * auto-committing is disabled, otherwise it will fail. Therefore, a new
2061 * transaction is implicitly started after committing the pending changes.
2063 * @param string name of a savepoint to release
2064 * @return mixed MDB2_OK on success, a MDB2 error on failure
2068 function commit($savepoint = null)
2070 $this->debug('Committing transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
2071 return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
2072 'commiting transactions is not supported', __FUNCTION__);
2076 // {{{ function rollback($savepoint = null)
2079 * Cancel any database changes done during a transaction or since a specific
2080 * savepoint that is in progress. This function may only be called when
2081 * auto-committing is disabled, otherwise it will fail. Therefore, a new
2082 * transaction is implicitly started after canceling the pending changes.
2084 * @param string name of a savepoint to rollback to
2085 * @return mixed MDB2_OK on success, a MDB2 error on failure
2089 function rollback($savepoint = null)
2091 $this->debug('Rolling back transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
2092 return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
2093 'rolling back transactions is not supported', __FUNCTION__);
2097 // {{{ function inTransaction($ignore_nested = false)
2100 * If a transaction is currently open.
2102 * @param bool if the nested transaction count should be ignored
2103 * @return int|bool - an integer with the nesting depth is returned if a
2104 * nested transaction is open
2105 * - true is returned for a normal open transaction
2106 * - false is returned if no transaction is open
2110 function inTransaction($ignore_nested = false)
2112 if (!$ignore_nested && isset($this->nested_transaction_counter)) {
2113 return $this->nested_transaction_counter;
2115 return $this->in_transaction;
2119 // {{{ function setTransactionIsolation($isolation)
2122 * Set the transacton isolation level.
2124 * @param string standard isolation level
2125 * READ UNCOMMITTED (allows dirty reads)
2126 * READ COMMITTED (prevents dirty reads)
2127 * REPEATABLE READ (prevents nonrepeatable reads)
2128 * SERIALIZABLE (prevents phantom reads)
2129 * @param array some transaction options:
2130 * 'wait' => 'WAIT' | 'NO WAIT'
2131 * 'rw' => 'READ WRITE' | 'READ ONLY'
2132 * @return mixed MDB2_OK on success, a MDB2 error on failure
2137 function setTransactionIsolation($isolation, $options = array())
2139 $this->debug('Setting transaction isolation level', __FUNCTION__, array('is_manip' => true));
2140 return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
2141 'isolation level setting is not supported', __FUNCTION__);
2145 // {{{ function beginNestedTransaction($savepoint = false)
2148 * Start a nested transaction.
2150 * @return mixed MDB2_OK on success/savepoint name, a MDB2 error on failure
2155 function beginNestedTransaction()
2157 if ($this->in_transaction) {
2158 ++$this->nested_transaction_counter;
2159 $savepoint = sprintf($this->options['savepoint_format'], $this->nested_transaction_counter);
2160 if ($this->supports('savepoints') && $savepoint) {
2161 return $this->beginTransaction($savepoint);
2165 $this->has_transaction_error = false;
2166 $result = $this->beginTransaction();
2167 $this->nested_transaction_counter = 1;
2172 // {{{ function completeNestedTransaction($force_rollback = false, $release = false)
2175 * Finish a nested transaction by rolling back if an error occured or
2176 * committing otherwise.
2178 * @param bool if the transaction should be rolled back regardless
2179 * even if no error was set within the nested transaction
2180 * @return mixed MDB_OK on commit/counter decrementing, false on rollback
2181 * and a MDB2 error on failure
2186 function completeNestedTransaction($force_rollback = false)
2188 if ($this->nested_transaction_counter > 1) {
2189 $savepoint = sprintf($this->options['savepoint_format'], $this->nested_transaction_counter);
2190 if ($this->supports('savepoints') && $savepoint) {
2191 if ($force_rollback || $this->has_transaction_error) {
2192 $result = $this->rollback($savepoint);
2193 if (!MDB2::isError($result)) {
2195 $this->has_transaction_error = false;
2198 $result = $this->commit($savepoint);
2203 --$this->nested_transaction_counter;
2207 $this->nested_transaction_counter = null;
2210 // transaction has not yet been rolled back
2211 if ($this->in_transaction) {
2212 if ($force_rollback || $this->has_transaction_error) {
2213 $result = $this->rollback();
2214 if (!MDB2::isError($result)) {
2218 $result = $this->commit();
2221 $this->has_transaction_error = false;
2226 // {{{ function failNestedTransaction($error = null, $immediately = false)
2229 * Force setting nested transaction to failed.
2231 * @param mixed value to return in getNestededTransactionError()
2232 * @param bool if the transaction should be rolled back immediately
2233 * @return bool MDB2_OK
2238 function failNestedTransaction($error = null, $immediately = false)
2240 if (null !== $error) {
2241 $error = $this->has_transaction_error ? $this->has_transaction_error : true;
2242 } elseif (!$error) {
2245 $this->has_transaction_error = $error;
2246 if (!$immediately) {
2249 return $this->rollback();
2253 // {{{ function getNestedTransactionError()
2256 * The first error that occured since the transaction start.
2258 * @return MDB2_Error|bool MDB2 error object if an error occured or false.
2263 function getNestedTransactionError()
2265 return $this->has_transaction_error;
2272 * Connect to the database
2274 * @return true on success, MDB2 Error Object on failure
2278 return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
2279 'method not implemented', __FUNCTION__);
2283 // {{{ databaseExists()
2286 * check if given database name is exists?
2288 * @param string $name name of the database that should be checked
2290 * @return mixed true/false on success, a MDB2 error on failure
2293 function databaseExists($name)
2295 return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
2296 'method not implemented', __FUNCTION__);
2300 // {{{ setCharset($charset, $connection = null)
2303 * Set the charset on the current connection
2305 * @param string charset
2306 * @param resource connection handle
2308 * @return true on success, MDB2 Error Object on failure
2310 function setCharset($charset, $connection = null)
2312 return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
2313 'method not implemented', __FUNCTION__);
2317 // {{{ function disconnect($force = true)
2320 * Log out and disconnect from the database.
2322 * @param boolean $force whether the disconnect should be forced even if the
2323 * connection is opened persistently
2325 * @return mixed true on success, false if not connected and error object on error
2329 function disconnect($force = true)
2331 $this->connection = 0;
2332 $this->connected_dsn = array();
2333 $this->connected_database_name = '';
2334 $this->opened_persistent = null;
2335 $this->connected_server_info = '';
2336 $this->in_transaction = null;
2337 $this->nested_transaction_counter = null;
2342 // {{{ function setDatabase($name)
2345 * Select a different database
2347 * @param string name of the database that should be selected
2349 * @return string name of the database previously connected to
2353 function setDatabase($name)
2355 $previous_database_name = (isset($this->database_name)) ? $this->database_name : '';
2356 $this->database_name = $name;
2357 if (!empty($this->connected_database_name) && ($this->connected_database_name != $this->database_name)) {
2358 $this->disconnect(false);
2360 return $previous_database_name;
2364 // {{{ function getDatabase()
2367 * Get the current database
2369 * @return string name of the database
2373 function getDatabase()
2375 return $this->database_name;
2379 // {{{ function setDSN($dsn)
2384 * @param mixed DSN string or array
2390 function setDSN($dsn)
2392 $dsn_default = $GLOBALS['_MDB2_dsninfo_default'];
2393 $dsn = MDB2::parseDSN($dsn);
2394 if (array_key_exists('database', $dsn)) {
2395 $this->database_name = $dsn['database'];
2396 unset($dsn['database']);
2398 $this->dsn = array_merge($dsn_default, $dsn);
2399 return $this->disconnect(false);
2403 // {{{ function getDSN($type = 'string', $hidepw = false)
2406 * return the DSN as a string
2408 * @param string format to return ("array", "string")
2409 * @param string string to hide the password with
2411 * @return mixed DSN in the chosen type
2415 function getDSN($type = 'string', $hidepw = false)
2417 $dsn = array_merge($GLOBALS['_MDB2_dsninfo_default'], $this->dsn);
2418 $dsn['phptype'] = $this->phptype;
2419 $dsn['database'] = $this->database_name;
2421 $dsn['password'] = $hidepw;
2424 // expand to include all possible options
2426 $dsn = $dsn['phptype'].
2427 ($dsn['dbsyntax'] ? ('('.$dsn['dbsyntax'].')') : '').
2428 '://'.$dsn['username'].':'.
2429 $dsn['password'].'@'.$dsn['hostspec'].
2430 ($dsn['port'] ? (':'.$dsn['port']) : '').
2431 '/'.$dsn['database'];
2441 // {{{ _isNewLinkSet()
2444 * Check if the 'new_link' option is set
2450 function _isNewLinkSet()
2452 return (isset($this->dsn['new_link'])
2453 && ($this->dsn['new_link'] === true
2454 || (is_string($this->dsn['new_link']) && preg_match('/^true$/i', $this->dsn['new_link']))
2455 || (is_numeric($this->dsn['new_link']) && 0 != (int)$this->dsn['new_link'])
2461 // {{{ function &standaloneQuery($query, $types = null, $is_manip = false)
2464 * execute a query as database administrator
2466 * @param string the SQL query
2467 * @param mixed array that contains the types of the columns in
2469 * @param bool if the query is a manipulation query
2471 * @return mixed MDB2_OK on success, a MDB2 error on failure
2475 function standaloneQuery($query, $types = null, $is_manip = false)
2477 $offset = $this->offset;
2478 $limit = $this->limit;
2479 $this->offset = $this->limit = 0;
2480 $query = $this->_modifyQuery($query, $is_manip, $limit, $offset);
2482 $connection = $this->getConnection();
2483 if (MDB2::isError($connection)) {
2487 $result = $this->_doQuery($query, $is_manip, $connection, false);
2488 if (MDB2::isError($result)) {
2493 $affected_rows = $this->_affectedRows($connection, $result);
2494 return $affected_rows;
2496 $result = $this->_wrapResult($result, $types, true, true, $limit, $offset);
2501 // {{{ function _modifyQuery($query, $is_manip, $limit, $offset)
2504 * Changes a query string for various DBMS specific reasons
2506 * @param string query to modify
2507 * @param bool if it is a DML query
2508 * @param int limit the number of rows
2509 * @param int start reading from given offset
2511 * @return string modified query
2515 function _modifyQuery($query, $is_manip, $limit, $offset)
2521 // {{{ function &_doQuery($query, $is_manip = false, $connection = null, $database_name = null)
2525 * @param string query
2526 * @param bool if the query is a manipulation query
2527 * @param resource connection handle
2528 * @param string database name
2530 * @return result or error object
2534 function _doQuery($query, $is_manip = false, $connection = null, $database_name = null)
2536 $this->last_query = $query;
2537 $result = $this->debug($query, 'query', array('is_manip' => $is_manip, 'when' => 'pre'));
2539 if (MDB2::isError($result)) {
2544 $err = MDB2_Driver_Common::raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
2545 'method not implemented', __FUNCTION__);
2550 // {{{ function _affectedRows($connection, $result = null)
2553 * Returns the number of rows affected
2555 * @param resource result handle
2556 * @param resource connection handle
2558 * @return mixed MDB2 Error Object or the number of rows affected
2562 function _affectedRows($connection, $result = null)
2564 return MDB2_Driver_Common::raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
2565 'method not implemented', __FUNCTION__);
2569 // {{{ function &exec($query)
2572 * Execute a manipulation query to the database and return the number of affected rows
2574 * @param string the SQL query
2576 * @return mixed number of affected rows on success, a MDB2 error on failure
2580 function exec($query)
2582 $offset = $this->offset;
2583 $limit = $this->limit;
2584 $this->offset = $this->limit = 0;
2585 $query = $this->_modifyQuery($query, true, $limit, $offset);
2587 $connection = $this->getConnection();
2588 if (MDB2::isError($connection)) {
2592 $result = $this->_doQuery($query, true, $connection, $this->database_name);
2593 if (MDB2::isError($result)) {
2597 $affectedRows = $this->_affectedRows($connection, $result);
2598 return $affectedRows;
2602 // {{{ function &query($query, $types = null, $result_class = true, $result_wrap_class = false)
2605 * Send a query to the database and return any results
2607 * @param string the SQL query
2608 * @param mixed array that contains the types of the columns in
2610 * @param mixed string which specifies which result class to use
2611 * @param mixed string which specifies which class to wrap results in
2613 * @return mixed an MDB2_Result handle on success, a MDB2 error on failure
2617 function query($query, $types = null, $result_class = true, $result_wrap_class = true)
2619 $offset = $this->offset;
2620 $limit = $this->limit;
2621 $this->offset = $this->limit = 0;
2622 $query = $this->_modifyQuery($query, false, $limit, $offset);
2624 $connection = $this->getConnection();
2625 if (MDB2::isError($connection)) {
2629 $result = $this->_doQuery($query, false, $connection, $this->database_name);
2630 if (MDB2::isError($result)) {
2634 $result = $this->_wrapResult($result, $types, $result_class, $result_wrap_class, $limit, $offset);
2639 // {{{ function _wrapResult($result_resource, $types = array(), $result_class = true, $result_wrap_class = false, $limit = null, $offset = null)
2642 * wrap a result set into the correct class
2644 * @param resource result handle
2645 * @param mixed array that contains the types of the columns in
2647 * @param mixed string which specifies which result class to use
2648 * @param mixed string which specifies which class to wrap results in
2649 * @param string number of rows to select
2650 * @param string first row to select
2652 * @return mixed an MDB2_Result, a MDB2 error on failure
2656 function _wrapResult($result_resource, $types = array(), $result_class = true,
2657 $result_wrap_class = true, $limit = null, $offset = null)
2659 if ($types === true) {
2660 if ($this->supports('result_introspection')) {
2661 $this->loadModule('Reverse', null, true);
2662 $tableInfo = $this->reverse->tableInfo($result_resource);
2663 if (MDB2::isError($tableInfo)) {
2667 $types_assoc = array();
2668 foreach ($tableInfo as $field) {
2669 $types[] = $field['mdb2type'];
2670 $types_assoc[$field['name']] = $field['mdb2type'];
2677 if ($result_class === true) {
2678 $result_class = $this->options['result_buffering']
2679 ? $this->options['buffered_result_class'] : $this->options['result_class'];
2682 if ($result_class) {
2683 $class_name = sprintf($result_class, $this->phptype);
2684 if (!MDB2::classExists($class_name)) {
2685 $err = MDB2_Driver_Common::raiseError(MDB2_ERROR_NOT_FOUND, null, null,
2686 'result class does not exist '.$class_name, __FUNCTION__);
2689 $result = new $class_name($this, $result_resource, $limit, $offset);
2690 if (!MDB2::isResultCommon($result)) {
2691 $err = MDB2_Driver_Common::raiseError(MDB2_ERROR_NOT_FOUND, null, null,
2692 'result class is not extended from MDB2_Result_Common', __FUNCTION__);
2696 if (!empty($types)) {
2697 $err = $result->setResultTypes($types);
2698 if (MDB2::isError($err)) {
2703 if (!empty($types_assoc)) {
2704 $err = $result->setResultTypes($types_assoc);
2705 if (MDB2::isError($err)) {
2711 if ($result_wrap_class === true) {
2712 $result_wrap_class = $this->options['result_wrap_class'];
2714 if ($result_wrap_class) {
2715 if (!MDB2::classExists($result_wrap_class)) {
2716 $err = MDB2_Driver_Common::raiseError(MDB2_ERROR_NOT_FOUND, null, null,
2717 'result wrap class does not exist '.$result_wrap_class, __FUNCTION__);
2720 $result = new $result_wrap_class($result, $this->fetchmode);
2726 return $result_resource;
2730 // {{{ function getServerVersion($native = false)
2733 * return version information about the server
2735 * @param bool determines if the raw version string should be returned
2737 * @return mixed array with version information or row string
2741 function getServerVersion($native = false)
2743 return MDB2_Driver_Common::raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
2744 'method not implemented', __FUNCTION__);
2748 // {{{ function setLimit($limit, $offset = null)
2751 * set the range of the next query
2753 * @param string number of rows to select
2754 * @param string first row to select
2756 * @return mixed MDB2_OK on success, a MDB2 error on failure
2760 function setLimit($limit, $offset = null)
2762 if (!$this->supports('limit_queries')) {
2763 return MDB2_Driver_Common::raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
2764 'limit is not supported by this driver', __FUNCTION__);
2766 $limit = (int)$limit;
2768 return MDB2_Driver_Common::raiseError(MDB2_ERROR_SYNTAX, null, null,
2769 'it was not specified a valid selected range row limit', __FUNCTION__);
2771 $this->limit = $limit;
2772 if (null !== $offset) {
2773 $offset = (int)$offset;
2775 return MDB2_Driver_Common::raiseError(MDB2_ERROR_SYNTAX, null, null,
2776 'it was not specified a valid first selected range row', __FUNCTION__);
2778 $this->offset = $offset;
2784 // {{{ function subSelect($query, $type = false)
2787 * simple subselect emulation: leaves the query untouched for all RDBMS
2788 * that support subselects
2790 * @param string the SQL query for the subselect that may only
2792 * @param string determines type of the field
2794 * @return string the query
2798 function subSelect($query, $type = false)
2800 if ($this->supports('sub_selects') === true) {
2804 if (!$this->supports('sub_selects')) {
2805 return MDB2_Driver_Common::raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
2806 'method not implemented', __FUNCTION__);
2809 $col = $this->queryCol($query, $type);
2810 if (MDB2::isError($col)) {
2813 if (!is_array($col) || count($col) == 0) {
2817 $this->loadModule('Datatype', null, true);
2818 return $this->datatype->implodeArray($col, $type);
2820 return implode(', ', $col);
2824 // {{{ function replace($table, $fields)
2827 * Execute a SQL REPLACE query. A REPLACE query is identical to a INSERT
2828 * query, except that if there is already a row in the table with the same
2829 * key field values, the old row is deleted before the new row is inserted.
2831 * The REPLACE type of query does not make part of the SQL standards. Since
2832 * practically only MySQL and SQLite implement it natively, this type of
2833 * query isemulated through this method for other DBMS using standard types
2834 * of queries inside a transaction to assure the atomicity of the operation.
2836 * @param string name of the table on which the REPLACE query will
2838 * @param array associative array that describes the fields and the
2839 * values that will be inserted or updated in the specified table. The
2840 * indexes of the array are the names of all the fields of the table.
2841 * The values of the array are also associative arrays that describe
2842 * the values and other properties of the table fields.
2844 * Here follows a list of field properties that need to be specified:
2847 * Value to be assigned to the specified field. This value may be
2848 * of specified in database independent type format as this
2849 * function can perform the necessary datatype conversions.
2851 * Default: this property is required unless the Null property is
2855 * Name of the type of the field. Currently, all types MDB2
2856 * are supported except for clob and blob.
2858 * Default: no type conversion
2861 * bool property that indicates that the value for this field
2862 * should be set to null.
2864 * The default value for fields missing in INSERT queries may be
2865 * specified the definition of a table. Often, the default value
2866 * is already null, but since the REPLACE may be emulated using
2867 * an UPDATE query, make sure that all fields of the table are
2868 * listed in this function argument array.
2873 * bool property that indicates that this field should be
2874 * handled as a primary key or at least as part of the compound
2875 * unique index of the table that will determine the row that will
2876 * updated if it exists or inserted a new row otherwise.
2878 * This function will fail if no key field is specified or if the
2879 * value of a key field is set to null because fields that are
2880 * part of unique index they may not be null.
2884 * @return mixed MDB2_OK on success, a MDB2 error on failure
2888 function replace($table, $fields)
2890 if (!$this->supports('replace')) {
2891 return MDB2_Driver_Common::raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
2892 'replace query is not supported', __FUNCTION__);
2894 $count = count($fields);
2895 $condition = $values = array();
2896 for ($colnum = 0, reset($fields); $colnum < $count; next($fields), $colnum++) {
2897 $name = key($fields);
2898 if (isset($fields[$name]['null']) && $fields[$name]['null']) {
2901 $type = isset($fields[$name]['type']) ? $fields[$name]['type'] : null;
2902 $value = $this->quote($fields[$name]['value'], $type);
2904 $values[$name] = $value;
2905 if (isset($fields[$name]['key']) && $fields[$name]['key']) {
2906 if ($value === 'NULL') {
2907 return MDB2_Driver_Common::raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null,
2908 'key value '.$name.' may not be NULL', __FUNCTION__);
2910 $condition[] = $this->quoteIdentifier($name, true) . '=' . $value;
2913 if (empty($condition)) {
2914 return MDB2_Driver_Common::raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null,
2915 'not specified which fields are keys', __FUNCTION__);
2919 $in_transaction = $this->in_transaction;
2920 if (!$in_transaction && MDB2::isError($result = $this->beginTransaction())) {
2924 $connection = $this->getConnection();
2925 if (MDB2::isError($connection)) {
2929 $condition = ' WHERE '.implode(' AND ', $condition);
2930 $query = 'DELETE FROM ' . $this->quoteIdentifier($table, true) . $condition;
2931 $result = $this->_doQuery($query, true, $connection);
2932 if (!MDB2::isError($result)) {
2933 $affected_rows = $this->_affectedRows($connection, $result);
2935 foreach ($values as $key => $value) {
2936 $insert .= ($insert?', ':'') . $this->quoteIdentifier($key, true);
2938 $values = implode(', ', $values);
2939 $query = 'INSERT INTO '. $this->quoteIdentifier($table, true) . "($insert) VALUES ($values)";
2940 $result = $this->_doQuery($query, true, $connection);
2941 if (!MDB2::isError($result)) {
2942 $affected_rows += $this->_affectedRows($connection, $result);;
2946 if (!$in_transaction) {
2947 if (MDB2::isError($result)) {
2950 $result = $this->commit();
2954 if (MDB2::isError($result)) {
2958 return $affected_rows;
2962 // {{{ function &prepare($query, $types = null, $result_types = null, $lobs = array())
2965 * Prepares a query for multiple execution with execute().
2966 * With some database backends, this is emulated.
2967 * prepare() requires a generic query as string like
2968 * 'INSERT INTO numbers VALUES(?,?)' or
2969 * 'INSERT INTO numbers VALUES(:foo,:bar)'.
2970 * The ? and :name and are placeholders which can be set using
2971 * bindParam() and the query can be sent off using the execute() method.
2972 * The allowed format for :name can be set with the 'bindname_format' option.
2974 * @param string the query to prepare
2975 * @param mixed array that contains the types of the placeholders
2976 * @param mixed array that contains the types of the columns in
2977 * the result set or MDB2_PREPARE_RESULT, if set to
2978 * MDB2_PREPARE_MANIP the query is handled as a manipulation query
2979 * @param mixed key (field) value (parameter) pair for all lob placeholders
2981 * @return mixed resource handle for the prepared query on success,
2982 * a MDB2 error on failure
2985 * @see bindParam, execute
2987 function prepare($query, $types = null, $result_types = null, $lobs = array())
2989 $is_manip = ($result_types === MDB2_PREPARE_MANIP);
2990 $offset = $this->offset;
2991 $limit = $this->limit;
2992 $this->offset = $this->limit = 0;
2993 $result = $this->debug($query, __FUNCTION__, array('is_manip' => $is_manip, 'when' => 'pre'));
2995 if (MDB2::isError($result)) {
3000 $placeholder_type_guess = $placeholder_type = null;
3003 $positions = array();
3005 while ($position < strlen($query)) {
3006 $q_position = strpos($query, $question, $position);
3007 $c_position = strpos($query, $colon, $position);
3008 if ($q_position && $c_position) {
3009 $p_position = min($q_position, $c_position);
3010 } elseif ($q_position) {
3011 $p_position = $q_position;
3012 } elseif ($c_position) {
3013 $p_position = $c_position;
3017 if (null === $placeholder_type) {
3018 $placeholder_type_guess = $query[$p_position];
3021 $new_pos = $this->_skipDelimitedStrings($query, $position, $p_position);
3022 if (MDB2::isError($new_pos)) {
3025 if ($new_pos != $position) {
3026 $position = $new_pos;
3027 continue; //evaluate again starting from the new position
3030 if ($query[$position] == $placeholder_type_guess) {
3031 if (null === $placeholder_type) {
3032 $placeholder_type = $query[$p_position];
3033 $question = $colon = $placeholder_type;
3034 if (!empty($types) && is_array($types)) {
3035 if ($placeholder_type == ':') {
3036 if (is_int(key($types))) {
3037 $types_tmp = $types;
3042 $types = array_values($types);
3046 if ($placeholder_type == ':') {
3047 $regexp = '/^.{'.($position+1).'}('.$this->options['bindname_format'].').*$/s';
3048 $parameter = preg_replace($regexp, '\\1', $query);
3049 if ($parameter === '') {
3050 $err = MDB2_Driver_Common::raiseError(MDB2_ERROR_SYNTAX, null, null,
3051 'named parameter name must match "bindname_format" option', __FUNCTION__);
3054 $positions[$p_position] = $parameter;
3055 $query = substr_replace($query, '?', $position, strlen($parameter)+1);
3056 // use parameter name in type array
3057 if (isset($count) && isset($types_tmp[++$count])) {
3058 $types[$parameter] = $types_tmp[$count];
3061 $positions[$p_position] = count($positions);
3063 $position = $p_position + 1;
3065 $position = $p_position;
3068 $class_name = 'MDB2_Statement_'.$this->phptype;
3070 $obj = new $class_name($this, $statement, $positions, $query, $types, $result_types, $is_manip, $limit, $offset);
3071 $this->debug($query, __FUNCTION__, array('is_manip' => $is_manip, 'when' => 'post', 'result' => $obj));
3076 // {{{ function _skipDelimitedStrings($query, $position, $p_position)
3079 * Utility method, used by prepare() to avoid replacing placeholders within delimited strings.
3080 * Check if the placeholder is contained within a delimited string.
3081 * If so, skip it and advance the position, otherwise return the current position,
3084 * @param string $query
3085 * @param integer $position current string cursor position
3086 * @param integer $p_position placeholder position
3088 * @return mixed integer $new_position on success
3089 * MDB2_Error on failure
3093 function _skipDelimitedStrings($query, $position, $p_position)
3096 $ignores[] = $this->string_quoting;
3097 $ignores[] = $this->identifier_quoting;
3098 $ignores = array_merge($ignores, $this->sql_comments);
3100 foreach ($ignores as $ignore) {
3101 if (!empty($ignore['start'])) {
3102 if (is_int($start_quote = strpos($query, $ignore['start'], $position)) && $start_quote < $p_position) {
3103 $end_quote = $start_quote;
3105 if (!is_int($end_quote = strpos($query, $ignore['end'], $end_quote + 1))) {
3106 if ($ignore['end'] === "\n") {
3107 $end_quote = strlen($query) - 1;
3109 $err = MDB2_Driver_Common::raiseError(MDB2_ERROR_SYNTAX, null, null,
3110 'query with an unterminated text string specified', __FUNCTION__);
3114 } while ($ignore['escape']
3115 && $end_quote-1 != $start_quote
3116 && $query[($end_quote - 1)] == $ignore['escape']
3117 && ( $ignore['escape_pattern'] !== $ignore['escape']
3118 || $query[($end_quote - 2)] != $ignore['escape'])
3121 $position = $end_quote + 1;
3130 // {{{ function quote($value, $type = null, $quote = true)
3133 * Convert a text value into a DBMS specific format that is suitable to
3134 * compose query statements.
3136 * @param string text string value that is intended to be converted.
3137 * @param string type to which the value should be converted to
3139 * @param bool escape wildcards
3141 * @return string text string that represents the given argument value in
3142 * a DBMS specific format.
3146 function quote($value, $type = null, $quote = true, $escape_wildcards = false)
3148 $result = $this->loadModule('Datatype', null, true);
3149 if (MDB2::isError($result)) {
3153 return $this->datatype->quote($value, $type, $quote, $escape_wildcards);
3157 // {{{ function getDeclaration($type, $name, $field)
3160 * Obtain DBMS specific SQL code portion needed to declare
3163 * @param string type to which the value should be converted to
3164 * @param string name the field to be declared.
3165 * @param string definition of the field
3167 * @return string DBMS specific SQL code portion that should be used to
3168 * declare the specified field.
3172 function getDeclaration($type, $name, $field)
3174 $result = $this->loadModule('Datatype', null, true);
3175 if (MDB2::isError($result)) {
3178 return $this->datatype->getDeclaration($type, $name, $field);
3182 // {{{ function compareDefinition($current, $previous)
3185 * Obtain an array of changes that may need to applied
3187 * @param array new definition
3188 * @param array old definition
3190 * @return array containing all changes that will need to be applied
3194 function compareDefinition($current, $previous)
3196 $result = $this->loadModule('Datatype', null, true);
3197 if (MDB2::isError($result)) {
3200 return $this->datatype->compareDefinition($current, $previous);
3204 // {{{ function supports($feature)
3207 * Tell whether a DB implementation or its backend extension
3208 * supports a given feature.
3210 * @param string name of the feature (see the MDB2 class doc)
3212 * @return bool|string if this DB implementation supports a given feature
3213 * false means no, true means native,
3214 * 'emulated' means emulated
3218 function supports($feature)
3220 if (array_key_exists($feature, $this->supported)) {
3221 return $this->supported[$feature];
3223 return MDB2_Driver_Common::raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
3224 "unknown support feature $feature", __FUNCTION__);
3228 // {{{ function getSequenceName($sqn)
3231 * adds sequence name formatting to a sequence name
3233 * @param string name of the sequence
3235 * @return string formatted sequence name
3239 function getSequenceName($sqn)
3241 return sprintf($this->options['seqname_format'],
3242 preg_replace('/[^a-z0-9_\-\$.]/i', '_', $sqn));
3246 // {{{ function getIndexName($idx)
3249 * adds index name formatting to a index name
3251 * @param string name of the index
3253 * @return string formatted index name
3257 function getIndexName($idx)
3259 return sprintf($this->options['idxname_format'],
3260 preg_replace('/[^a-z0-9_\-\$.]/i', '_', $idx));
3264 // {{{ function nextID($seq_name, $ondemand = true)
3267 * Returns the next free id of a sequence
3269 * @param string name of the sequence
3270 * @param bool when true missing sequences are automatic created
3272 * @return mixed MDB2 Error Object or id
3276 function nextID($seq_name, $ondemand = true)
3278 return MDB2_Driver_Common::raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
3279 'method not implemented', __FUNCTION__);
3283 // {{{ function lastInsertID($table = null, $field = null)
3286 * Returns the autoincrement ID if supported or $id or fetches the current
3287 * ID in a sequence called: $table.(empty($field) ? '' : '_'.$field)
3289 * @param string name of the table into which a new row was inserted
3290 * @param string name of the field into which a new row was inserted
3292 * @return mixed MDB2 Error Object or id
3296 function lastInsertID($table = null, $field = null)
3298 return MDB2_Driver_Common::raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
3299 'method not implemented', __FUNCTION__);
3303 // {{{ function currID($seq_name)
3306 * Returns the current id of a sequence
3308 * @param string name of the sequence
3310 * @return mixed MDB2 Error Object or id
3314 function currID($seq_name)
3316 $this->warnings[] = 'database does not support getting current
3317 sequence value, the sequence value was incremented';
3318 return $this->nextID($seq_name);
3322 // {{{ function queryOne($query, $type = null, $colnum = 0)
3325 * Execute the specified query, fetch the value from the first column of
3326 * the first row of the result set and then frees
3329 * @param string $query the SELECT query statement to be executed.
3330 * @param string $type optional argument that specifies the expected
3331 * datatype of the result set field, so that an eventual
3332 * conversion may be performed. The default datatype is
3333 * text, meaning that no conversion is performed
3334 * @param mixed $colnum the column number (or name) to fetch
3336 * @return mixed MDB2_OK or field value on success, a MDB2 error on failure
3340 function queryOne($query, $type = null, $colnum = 0)
3342 $result = $this->query($query, $type);
3343 if (!MDB2::isResultCommon($result)) {
3347 $one = $result->fetchOne($colnum);
3353 // {{{ function queryRow($query, $types = null, $fetchmode = MDB2_FETCHMODE_DEFAULT)
3356 * Execute the specified query, fetch the values from the first
3357 * row of the result set into an array and then frees
3360 * @param string the SELECT query statement to be executed.
3361 * @param array optional array argument that specifies a list of
3362 * expected datatypes of the result set columns, so that the eventual
3363 * conversions may be performed. The default list of datatypes is
3364 * empty, meaning that no conversion is performed.
3365 * @param int how the array data should be indexed
3367 * @return mixed MDB2_OK or data array on success, a MDB2 error on failure
3371 function queryRow($query, $types = null, $fetchmode = MDB2_FETCHMODE_DEFAULT)
3373 $result = $this->query($query, $types);
3374 if (!MDB2::isResultCommon($result)) {
3378 $row = $result->fetchRow($fetchmode);
3384 // {{{ function queryCol($query, $type = null, $colnum = 0)
3387 * Execute the specified query, fetch the value from the first column of
3388 * each row of the result set into an array and then frees the result set.
3390 * @param string $query the SELECT query statement to be executed.
3391 * @param string $type optional argument that specifies the expected
3392 * datatype of the result set field, so that an eventual
3393 * conversion may be performed. The default datatype is text,
3394 * meaning that no conversion is performed
3395 * @param mixed $colnum the column number (or name) to fetch
3397 * @return mixed MDB2_OK or data array on success, a MDB2 error on failure
3400 function queryCol($query, $type = null, $colnum = 0)
3402 $result = $this->query($query, $type);
3403 if (!MDB2::isResultCommon($result)) {
3407 $col = $result->fetchCol($colnum);
3413 // {{{ function queryAll($query, $types = null, $fetchmode = MDB2_FETCHMODE_DEFAULT, $rekey = false, $force_array = false, $group = false)
3416 * Execute the specified query, fetch all the rows of the result set into
3417 * a two dimensional array and then frees the result set.
3419 * @param string the SELECT query statement to be executed.
3420 * @param array optional array argument that specifies a list of
3421 * expected datatypes of the result set columns, so that the eventual
3422 * conversions may be performed. The default list of datatypes is
3423 * empty, meaning that no conversion is performed.
3424 * @param int how the array data should be indexed
3425 * @param bool if set to true, the $all will have the first
3426 * column as its first dimension
3427 * @param bool used only when the query returns exactly
3428 * two columns. If true, the values of the returned array will be
3429 * one-element arrays instead of scalars.
3430 * @param bool if true, the values of the returned array is
3431 * wrapped in another array. If the same key value (in the first
3432 * column) repeats itself, the values will be appended to this array
3433 * instead of overwriting the existing values.
3435 * @return mixed MDB2_OK or data array on success, a MDB2 error on failure
3439 function queryAll($query, $types = null, $fetchmode = MDB2_FETCHMODE_DEFAULT,
3440 $rekey = false, $force_array = false, $group = false)
3442 $result = $this->query($query, $types);
3443 if (!MDB2::isResultCommon($result)) {
3447 $all = $result->fetchAll($fetchmode, $rekey, $force_array, $group);
3453 // {{{ function delExpect($error_code)
3456 * This method deletes all occurences of the specified element from
3457 * the expected error codes stack.
3459 * @param mixed $error_code error code that should be deleted
3460 * @return mixed list of error codes that were deleted or error
3462 * @uses PEAR::delExpect()
3464 public function delExpect($error_code)
3466 return $this->pear->delExpect($error_code);
3470 // {{{ function expectError($code)
3473 * This method is used to tell which errors you expect to get.
3474 * Expected errors are always returned with error mode
3475 * PEAR_ERROR_RETURN. Expected error codes are stored in a stack,
3476 * and this method pushes a new element onto it. The list of
3477 * expected errors are in effect until they are popped off the
3478 * stack with the popExpect() method.
3480 * Note that this method can not be called statically
3482 * @param mixed $code a single error code or an array of error codes to expect
3484 * @return int the new depth of the "expected errors" stack
3486 * @uses PEAR::expectError()
3488 public function expectError($code = '*')
3490 return $this->pear->expectError($code);
3494 // {{{ function getStaticProperty($class, $var)
3497 * If you have a class that's mostly/entirely static, and you need static
3498 * properties, you can use this method to simulate them. Eg. in your method(s)
3499 * do this: $myVar = &PEAR::getStaticProperty('myclass', 'myVar');
3500 * You MUST use a reference, or they will not persist!
3502 * @param string $class The calling classname, to prevent clashes
3503 * @param string $var The variable to retrieve.
3504 * @return mixed A reference to the variable. If not set it will be
3505 * auto initialised to NULL.
3507 * @uses PEAR::getStaticProperty()
3509 public function &getStaticProperty($class, $var)
3511 $tmp =& $this->pear->getStaticProperty($class, $var);
3516 // {{{ function popErrorHandling()
3519 * Pop the last error handler used
3521 * @return bool Always true
3523 * @see PEAR::pushErrorHandling
3524 * @uses PEAR::popErrorHandling()
3526 public function popErrorHandling()
3528 return $this->pear->popErrorHandling();
3532 // {{{ function popExpect()
3535 * This method pops one element off the expected error codes
3538 * @return array the list of error codes that were popped
3540 * @uses PEAR::popExpect()
3542 public function popExpect()
3544 return $this->pear->popExpect();
3548 // {{{ function pushErrorHandling($mode, $options = null)
3551 * Push a new error handler on top of the error handler options stack. With this
3552 * you can easily override the actual error handler for some code and restore
3553 * it later with popErrorHandling.
3555 * @param mixed $mode (same as setErrorHandling)
3556 * @param mixed $options (same as setErrorHandling)
3558 * @return bool Always true
3560 * @see PEAR::setErrorHandling
3561 * @uses PEAR::pushErrorHandling()
3563 public function pushErrorHandling($mode, $options = null)
3565 return $this->pear->pushErrorHandling($mode, $options);
3569 // {{{ function registerShutdownFunc($func, $args = array())
3572 * Use this function to register a shutdown method for static
3575 * @param mixed $func The function name (or array of class/method) to call
3576 * @param mixed $args The arguments to pass to the function
3579 * @uses PEAR::registerShutdownFunc()
3581 public function registerShutdownFunc($func, $args = array())
3583 return $this->pear->registerShutdownFunc($func, $args);
3587 // {{{ function setErrorHandling($mode = null, $options = null)
3590 * Sets how errors generated by this object should be handled.
3591 * Can be invoked both in objects and statically. If called
3592 * statically, setErrorHandling sets the default behaviour for all
3593 * PEAR objects. If called in an object, setErrorHandling sets
3594 * the default behaviour for that object.
3597 * One of PEAR_ERROR_RETURN, PEAR_ERROR_PRINT,
3598 * PEAR_ERROR_TRIGGER, PEAR_ERROR_DIE,
3599 * PEAR_ERROR_CALLBACK or PEAR_ERROR_EXCEPTION.
3601 * @param mixed $options
3602 * When $mode is PEAR_ERROR_TRIGGER, this is the error level (one
3603 * of E_USER_NOTICE, E_USER_WARNING or E_USER_ERROR).
3605 * When $mode is PEAR_ERROR_CALLBACK, this parameter is expected
3606 * to be the callback function or method. A callback
3607 * function is a string with the name of the function, a
3608 * callback method is an array of two elements: the element
3609 * at index 0 is the object, and the element at index 1 is
3610 * the name of the method to call in the object.
3612 * When $mode is PEAR_ERROR_PRINT or PEAR_ERROR_DIE, this is
3613 * a printf format string used when printing the error
3618 * @see PEAR_ERROR_RETURN
3619 * @see PEAR_ERROR_PRINT
3620 * @see PEAR_ERROR_TRIGGER
3621 * @see PEAR_ERROR_DIE
3622 * @see PEAR_ERROR_CALLBACK
3623 * @see PEAR_ERROR_EXCEPTION
3626 * @uses PEAR::setErrorHandling($mode, $options)
3628 public function setErrorHandling($mode = null, $options = null)
3630 return $this->pear->setErrorHandling($mode, $options);
3634 * @uses PEAR::staticPopErrorHandling()
3636 public function staticPopErrorHandling()
3638 return $this->pear->staticPopErrorHandling();
3642 // {{{ function staticPushErrorHandling($mode, $options = null)
3645 * @uses PEAR::staticPushErrorHandling($mode, $options)
3647 public function staticPushErrorHandling($mode, $options = null)
3649 return $this->pear->staticPushErrorHandling($mode, $options);
3653 // {{{ function &throwError($message = null, $code = null, $userinfo = null)
3656 * Simpler form of raiseError with fewer options. In most cases
3657 * message, code and userinfo are enough.
3659 * @param mixed $message a text error message or a PEAR error object
3661 * @param int $code a numeric error code (it is up to your class
3662 * to define these if you want to use codes)
3664 * @param string $userinfo If you need to pass along for example debug
3665 * information, this parameter is meant for that.
3667 * @return object a PEAR error object
3668 * @see PEAR::raiseError
3669 * @uses PEAR::&throwError()
3671 public function &throwError($message = null, $code = null, $userinfo = null)
3673 $tmp =& $this->pear->throwError($message, $code, $userinfo);
3681 // {{{ class MDB2_Result
3684 * The dummy class that all user space result classes should extend from
3687 * @category Database
3688 * @author Lukas Smith <smith@pooteeweet.org>
3695 // {{{ class MDB2_Result_Common extends MDB2_Result
3698 * The common result class for MDB2 result objects
3701 * @category Database
3702 * @author Lukas Smith <smith@pooteeweet.org>
3704 class MDB2_Result_Common extends MDB2_Result
3706 // {{{ Variables (Properties)
3710 public $rownum = -1;
3711 public $types = array();
3712 public $types_assoc = array();
3713 public $values = array();
3715 public $offset_count = 0;
3717 public $column_names;
3720 // {{{ constructor: function __construct($db, &$result, $limit = 0, $offset = 0)
3725 function __construct($db, &$result, $limit = 0, $offset = 0)
3728 $this->result = $result;
3729 $this->offset = $offset;
3730 $this->limit = max(0, $limit - 1);
3734 // {{{ function setResultTypes($types)
3737 * Define the list of types to be associated with the columns of a given
3740 * This function may be called before invoking fetchRow(), fetchOne(),
3741 * fetchCol() and fetchAll() so that the necessary data type
3742 * conversions are performed on the data to be retrieved by them. If this
3743 * function is not called, the type of all result set columns is assumed
3744 * to be text, thus leading to not perform any conversions.
3746 * @param array variable that lists the
3747 * data types to be expected in the result set columns. If this array
3748 * contains less types than the number of columns that are returned
3749 * in the result set, the remaining columns are assumed to be of the
3750 * type text. Currently, the types clob and blob are not fully
3753 * @return mixed MDB2_OK on success, a MDB2 error on failure
3757 function setResultTypes($types)
3759 $load = $this->db->loadModule('Datatype', null, true);
3760 if (MDB2::isError($load)) {
3763 $types = $this->db->datatype->checkResultTypes($types);
3764 if (MDB2::isError($types)) {
3767 foreach ($types as $key => $value) {
3768 if (is_numeric($key)) {
3769 $this->types[$key] = $value;
3771 $this->types_assoc[$key] = $value;
3778 // {{{ function seek($rownum = 0)
3781 * Seek to a specific row in a result set
3783 * @param int number of the row where the data can be found
3785 * @return mixed MDB2_OK on success, a MDB2 error on failure
3789 function seek($rownum = 0)
3791 $target_rownum = $rownum - 1;
3792 if ($this->rownum > $target_rownum) {
3793 return MDB2::raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
3794 'seeking to previous rows not implemented', __FUNCTION__);
3796 while ($this->rownum < $target_rownum) {
3803 // {{{ function &fetchRow($fetchmode = MDB2_FETCHMODE_DEFAULT, $rownum = null)
3806 * Fetch and return a row of data
3808 * @param int how the array data should be indexed
3809 * @param int number of the row where the data can be found
3811 * @return int data array on success, a MDB2 error on failure
3815 function fetchRow($fetchmode = MDB2_FETCHMODE_DEFAULT, $rownum = null)
3817 $err = MDB2::raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
3818 'method not implemented', __FUNCTION__);
3823 // {{{ function fetchOne($colnum = 0)
3826 * fetch single column from the next row from a result set
3828 * @param int|string the column number (or name) to fetch
3829 * @param int number of the row where the data can be found
3831 * @return string data on success, a MDB2 error on failure
3834 function fetchOne($colnum = 0, $rownum = null)
3836 $fetchmode = is_numeric($colnum) ? MDB2_FETCHMODE_ORDERED : MDB2_FETCHMODE_ASSOC;
3837 $row = $this->fetchRow($fetchmode, $rownum);
3838 if (!is_array($row) || MDB2::isError($row)) {
3841 if (!array_key_exists($colnum, $row)) {
3842 return MDB2::raiseError(MDB2_ERROR_TRUNCATED, null, null,
3843 'column is not defined in the result set: '.$colnum, __FUNCTION__);
3845 return $row[$colnum];
3849 // {{{ function fetchCol($colnum = 0)
3852 * Fetch and return a column from the current row pointer position
3854 * @param int|string the column number (or name) to fetch
3856 * @return mixed data array on success, a MDB2 error on failure
3859 function fetchCol($colnum = 0)
3862 $fetchmode = is_numeric($colnum) ? MDB2_FETCHMODE_ORDERED : MDB2_FETCHMODE_ASSOC;
3863 $row = $this->fetchRow($fetchmode);
3864 if (is_array($row)) {
3865 if (!array_key_exists($colnum, $row)) {
3866 return MDB2::raiseError(MDB2_ERROR_TRUNCATED, null, null,
3867 'column is not defined in the result set: '.$colnum, __FUNCTION__);
3870 $column[] = $row[$colnum];
3871 } while (is_array($row = $this->fetchRow($fetchmode)));
3873 if (MDB2::isError($row)) {
3880 // {{{ function fetchAll($fetchmode = MDB2_FETCHMODE_DEFAULT, $rekey = false, $force_array = false, $group = false)
3883 * Fetch and return all rows from the current row pointer position
3885 * @param int $fetchmode the fetch mode to use:
3886 * + MDB2_FETCHMODE_ORDERED
3887 * + MDB2_FETCHMODE_ASSOC
3888 * + MDB2_FETCHMODE_ORDERED | MDB2_FETCHMODE_FLIPPED
3889 * + MDB2_FETCHMODE_ASSOC | MDB2_FETCHMODE_FLIPPED
3890 * @param bool if set to true, the $all will have the first
3891 * column as its first dimension
3892 * @param bool used only when the query returns exactly
3893 * two columns. If true, the values of the returned array will be
3894 * one-element arrays instead of scalars.
3895 * @param bool if true, the values of the returned array is
3896 * wrapped in another array. If the same key value (in the first
3897 * column) repeats itself, the values will be appended to this array
3898 * instead of overwriting the existing values.
3900 * @return mixed data array on success, a MDB2 error on failure
3905 function fetchAll($fetchmode = MDB2_FETCHMODE_DEFAULT, $rekey = false,
3906 $force_array = false, $group = false)
3909 $row = $this->fetchRow($fetchmode);
3910 if (MDB2::isError($row)) {
3916 $shift_array = $rekey ? false : null;
3917 if (null !== $shift_array) {
3918 if (is_object($row)) {
3919 $colnum = count(get_object_vars($row));
3921 $colnum = count($row);
3924 return MDB2::raiseError(MDB2_ERROR_TRUNCATED, null, null,
3925 'rekey feature requires atleast 2 column', __FUNCTION__);
3927 $shift_array = (!$force_array && $colnum == 2);
3932 if (is_object($row)) {
3933 $arr = get_object_vars($row);
3935 unset($row->{$key});
3937 if ( $fetchmode == MDB2_FETCHMODE_ASSOC
3938 || $fetchmode == MDB2_FETCHMODE_OBJECT
3941 unset($row[key($row)]);
3943 $key = array_shift($row);
3946 $row = array_shift($row);
3950 $all[$key][] = $row;
3954 } while (($row = $this->fetchRow($fetchmode)));
3955 } elseif ($fetchmode == MDB2_FETCHMODE_FLIPPED) {
3957 foreach ($row as $key => $val) {
3958 $all[$key][] = $val;
3960 } while (($row = $this->fetchRow($fetchmode)));
3964 } while (($row = $this->fetchRow($fetchmode)));
3971 // {{{ function rowCount()
3973 * Returns the actual row number that was last fetched (count from 0)
3980 return $this->rownum + 1;
3984 // {{{ function numRows()
3987 * Returns the number of rows in a result object
3989 * @return mixed MDB2 Error Object or the number of rows
3995 return MDB2::raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
3996 'method not implemented', __FUNCTION__);
4000 // {{{ function nextResult()
4003 * Move the internal result pointer to the next available result
4005 * @return true on success, false if there is no more result set or an error object on failure
4009 function nextResult()
4011 return MDB2::raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
4012 'method not implemented', __FUNCTION__);
4016 // {{{ function getColumnNames()
4019 * Retrieve the names of columns returned by the DBMS in a query result or
4022 * @param bool If set to true the values are the column names,
4023 * otherwise the names of the columns are the keys.
4024 * @return mixed Array variable that holds the names of columns or an
4025 * MDB2 error on failure.
4026 * Some DBMS may not return any columns when the result set
4027 * does not contain any rows.
4031 function getColumnNames($flip = false)
4033 if (!isset($this->column_names)) {
4034 $result = $this->_getColumnNames();
4035 if (MDB2::isError($result)) {
4038 $this->column_names = $result;
4041 return array_flip($this->column_names);
4043 return $this->column_names;
4047 // {{{ function _getColumnNames()
4050 * Retrieve the names of columns returned by the DBMS in a query result.
4052 * @return mixed Array variable that holds the names of columns as keys
4053 * or an MDB2 error on failure.
4054 * Some DBMS may not return any columns when the result set
4055 * does not contain any rows.
4059 function _getColumnNames()
4061 return MDB2::raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
4062 'method not implemented', __FUNCTION__);
4066 // {{{ function numCols()
4069 * Count the number of columns returned by the DBMS in a query result.
4071 * @return mixed integer value with the number of columns, a MDB2 error
4078 return MDB2::raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
4079 'method not implemented', __FUNCTION__);
4083 // {{{ function getResource()
4086 * return the resource associated with the result object
4092 function getResource()
4094 return $this->result;
4098 // {{{ function bindColumn($column, &$value, $type = null)
4101 * Set bind variable to a column.
4103 * @param int column number or name
4104 * @param mixed variable reference
4105 * @param string specifies the type of the field
4107 * @return mixed MDB2_OK on success, a MDB2 error on failure
4111 function bindColumn($column, &$value, $type = null)
4113 if (!is_numeric($column)) {
4114 $column_names = $this->getColumnNames();
4115 if ($this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
4116 if ($this->db->options['field_case'] == CASE_LOWER) {
4117 $column = strtolower($column);
4119 $column = strtoupper($column);
4122 $column = $column_names[$column];
4124 $this->values[$column] =& $value;
4125 if (null !== $type) {
4126 $this->types[$column] = $type;
4132 // {{{ function _assignBindColumns($row)
4135 * Bind a variable to a value in the result row.
4137 * @param array row data
4139 * @return mixed MDB2_OK on success, a MDB2 error on failure
4143 function _assignBindColumns($row)
4145 $row = array_values($row);
4146 foreach ($row as $column => $value) {
4147 if (array_key_exists($column, $this->values)) {
4148 $this->values[$column] = $value;
4155 // {{{ function free()
4158 * Free the internal resources associated with result.
4160 * @return bool true on success, false if result is invalid
4166 $this->result = false;
4174 // {{{ class MDB2_Row
4177 * The simple class that accepts row data as an array
4180 * @category Database
4181 * @author Lukas Smith <smith@pooteeweet.org>
4185 // {{{ constructor: function __construct(&$row)
4190 * @param resource row data as array
4192 function __construct(&$row)
4194 foreach ($row as $key => $value) {
4195 $this->$key = &$row[$key];
4203 // {{{ class MDB2_Statement_Common
4206 * The common statement class for MDB2 statement objects
4209 * @category Database
4210 * @author Lukas Smith <smith@pooteeweet.org>
4212 class MDB2_Statement_Common
4214 // {{{ Variables (Properties)
4221 var $values = array();
4227 // {{{ constructor: function __construct($db, $statement, $positions, $query, $types, $result_types, $is_manip = false, $limit = null, $offset = null)
4232 function __construct($db, $statement, $positions, $query, $types, $result_types, $is_manip = false, $limit = null, $offset = null)
4235 $this->statement = $statement;
4236 $this->positions = $positions;
4237 $this->query = $query;
4238 $this->types = (array)$types;
4239 $this->result_types = (array)$result_types;
4240 $this->limit = $limit;
4241 $this->is_manip = $is_manip;
4242 $this->offset = $offset;
4246 // {{{ function bindValue($parameter, &$value, $type = null)
4249 * Set the value of a parameter of a prepared query.
4251 * @param int the order number of the parameter in the query
4252 * statement. The order number of the first parameter is 1.
4253 * @param mixed value that is meant to be assigned to specified
4254 * parameter. The type of the value depends on the $type argument.
4255 * @param string specifies the type of the field
4257 * @return mixed MDB2_OK on success, a MDB2 error on failure
4261 function bindValue($parameter, $value, $type = null)
4263 if (!is_numeric($parameter)) {
4264 if (strpos($parameter, ':') === 0) {
4265 $parameter = substr($parameter, 1);
4268 if (!in_array($parameter, $this->positions)) {
4269 return MDB2::raiseError(MDB2_ERROR_NOT_FOUND, null, null,
4270 'Unable to bind to missing placeholder: '.$parameter, __FUNCTION__);
4272 $this->values[$parameter] = $value;
4273 if (null !== $type) {
4274 $this->types[$parameter] = $type;
4280 // {{{ function bindValueArray($values, $types = null)
4283 * Set the values of multiple a parameter of a prepared query in bulk.
4285 * @param array specifies all necessary information
4286 * for bindValue() the array elements must use keys corresponding to
4287 * the number of the position of the parameter.
4288 * @param array specifies the types of the fields
4290 * @return mixed MDB2_OK on success, a MDB2 error on failure
4295 function bindValueArray($values, $types = null)
4297 $types = is_array($types) ? array_values($types) : array_fill(0, count($values), null);
4298 $parameters = array_keys($values);
4299 $this->db->pushErrorHandling(PEAR_ERROR_RETURN);
4300 $this->db->expectError(MDB2_ERROR_NOT_FOUND);
4301 foreach ($parameters as $key => $parameter) {
4302 $err = $this->bindValue($parameter, $values[$parameter], $types[$key]);
4303 if (MDB2::isError($err)) {
4304 if ($err->getCode() == MDB2_ERROR_NOT_FOUND) {
4305 //ignore (extra value for missing placeholder)
4308 $this->db->popExpect();
4309 $this->db->popErrorHandling();
4313 $this->db->popExpect();
4314 $this->db->popErrorHandling();
4319 // {{{ function bindParam($parameter, &$value, $type = null)
4322 * Bind a variable to a parameter of a prepared query.
4324 * @param int the order number of the parameter in the query
4325 * statement. The order number of the first parameter is 1.
4326 * @param mixed variable that is meant to be bound to specified
4327 * parameter. The type of the value depends on the $type argument.
4328 * @param string specifies the type of the field
4330 * @return mixed MDB2_OK on success, a MDB2 error on failure
4334 function bindParam($parameter, &$value, $type = null)
4336 if (!is_numeric($parameter)) {
4337 if (strpos($parameter, ':') === 0) {
4338 $parameter = substr($parameter, 1);
4341 if (!in_array($parameter, $this->positions)) {
4342 return MDB2::raiseError(MDB2_ERROR_NOT_FOUND, null, null,
4343 'Unable to bind to missing placeholder: '.$parameter, __FUNCTION__);
4345 $this->values[$parameter] =& $value;
4346 if (null !== $type) {
4347 $this->types[$parameter] = $type;
4353 // {{{ function bindParamArray(&$values, $types = null)
4356 * Bind the variables of multiple a parameter of a prepared query in bulk.
4358 * @param array specifies all necessary information
4359 * for bindParam() the array elements must use keys corresponding to
4360 * the number of the position of the parameter.
4361 * @param array specifies the types of the fields
4363 * @return mixed MDB2_OK on success, a MDB2 error on failure
4368 function bindParamArray(&$values, $types = null)
4370 $types = is_array($types) ? array_values($types) : array_fill(0, count($values), null);
4371 $parameters = array_keys($values);
4372 foreach ($parameters as $key => $parameter) {
4373 $err = $this->bindParam($parameter, $values[$parameter], $types[$key]);
4374 if (MDB2::isError($err)) {
4382 // {{{ function &execute($values = null, $result_class = true, $result_wrap_class = false)
4385 * Execute a prepared query statement.
4387 * @param array specifies all necessary information
4388 * for bindParam() the array elements must use keys corresponding
4389 * to the number of the position of the parameter.
4390 * @param mixed specifies which result class to use
4391 * @param mixed specifies which class to wrap results in
4393 * @return mixed MDB2_Result or integer (affected rows) on success,
4394 * a MDB2 error on failure
4397 function execute($values = null, $result_class = true, $result_wrap_class = false)
4399 if (null === $this->positions) {
4400 return MDB2::raiseError(MDB2_ERROR, null, null,
4401 'Prepared statement has already been freed', __FUNCTION__);
4404 $values = (array)$values;
4405 if (!empty($values)) {
4406 $err = $this->bindValueArray($values);
4407 if (MDB2::isError($err)) {
4408 return MDB2::raiseError(MDB2_ERROR, null, null,
4409 'Binding Values failed with message: ' . $err->getMessage(), __FUNCTION__);
4412 $result = $this->_execute($result_class, $result_wrap_class);
4417 // {{{ function _execute($result_class = true, $result_wrap_class = false)
4420 * Execute a prepared query statement helper method.
4422 * @param mixed specifies which result class to use
4423 * @param mixed specifies which class to wrap results in
4425 * @return mixed MDB2_Result or integer (affected rows) on success,
4426 * a MDB2 error on failure
4429 function _execute($result_class = true, $result_wrap_class = false)
4431 $this->last_query = $this->query;
4434 foreach ($this->positions as $current_position => $parameter) {
4435 if (!array_key_exists($parameter, $this->values)) {
4436 return MDB2::raiseError(MDB2_ERROR_NOT_FOUND, null, null,
4437 'Unable to bind to missing placeholder: '.$parameter, __FUNCTION__);
4439 $value = $this->values[$parameter];
4440 $query.= substr($this->query, $last_position, $current_position - $last_position);
4441 if (!isset($value)) {
4442 $value_quoted = 'NULL';
4444 $type = !empty($this->types[$parameter]) ? $this->types[$parameter] : null;
4445 $value_quoted = $this->db->quote($value, $type);
4446 if (MDB2::isError($value_quoted)) {
4447 return $value_quoted;
4450 $query.= $value_quoted;
4451 $last_position = $current_position + 1;
4453 $query.= substr($this->query, $last_position);
4455 $this->db->offset = $this->offset;
4456 $this->db->limit = $this->limit;
4457 if ($this->is_manip) {
4458 $result = $this->db->exec($query);
4460 $result = $this->db->query($query, $this->result_types, $result_class, $result_wrap_class);
4466 // {{{ function free()
4469 * Release resources allocated for the specified prepared query.
4471 * @return mixed MDB2_OK on success, a MDB2 error on failure
4477 if (null === $this->positions) {
4478 return MDB2::raiseError(MDB2_ERROR, null, null,
4479 'Prepared statement has already been freed', __FUNCTION__);
4482 $this->statement = null;
4483 $this->positions = null;
4484 $this->query = null;
4485 $this->types = null;
4486 $this->result_types = null;
4487 $this->limit = null;
4488 $this->is_manip = null;
4489 $this->offset = null;
4490 $this->values = null;
4499 // {{{ class MDB2_Module_Common
4502 * The common modules class for MDB2 module objects
4505 * @category Database
4506 * @author Lukas Smith <smith@pooteeweet.org>
4508 class MDB2_Module_Common
4510 // {{{ Variables (Properties)
4513 * contains the key to the global MDB2 instance array of the associated
4519 protected $db_index;
4522 // {{{ constructor: function __construct($db_index)
4527 function __construct($db_index)
4529 $this->db_index = $db_index;
4533 // {{{ function getDBInstance()
4536 * Get the instance of MDB2 associated with the module instance
4538 * @return object MDB2 instance or a MDB2 error on failure
4542 function getDBInstance()
4544 if (isset($GLOBALS['_MDB2_databases'][$this->db_index])) {
4545 $result = $GLOBALS['_MDB2_databases'][$this->db_index];
4547 $result = MDB2::raiseError(MDB2_ERROR_NOT_FOUND, null, null,
4548 'could not find MDB2 instance');
4557 // {{{ function MDB2_closeOpenTransactions()
4560 * Close any open transactions form persistent connections
4567 function MDB2_closeOpenTransactions()
4569 reset($GLOBALS['_MDB2_databases']);
4570 while (next($GLOBALS['_MDB2_databases'])) {
4571 $key = key($GLOBALS['_MDB2_databases']);
4572 if ($GLOBALS['_MDB2_databases'][$key]->opened_persistent
4573 && $GLOBALS['_MDB2_databases'][$key]->in_transaction
4575 $GLOBALS['_MDB2_databases'][$key]->rollback();
4581 // {{{ function MDB2_defaultDebugOutput(&$db, $scope, $message, $is_manip = null)
4584 * default debug output handler
4586 * @param object reference to an MDB2 database object
4587 * @param string usually the method name that triggered the debug call:
4588 * for example 'query', 'prepare', 'execute', 'parameters',
4589 * 'beginTransaction', 'commit', 'rollback'
4590 * @param string message that should be appended to the debug variable
4591 * @param array contains context information about the debug() call
4592 * common keys are: is_manip, time, result etc.
4594 * @return void|string optionally return a modified message, this allows
4595 * rewriting a query before being issued or prepared
4599 function MDB2_defaultDebugOutput(&$db, $scope, $message, $context = array())
4601 $db->debug_output.= $scope.'('.$db->db_index.'): ';
4602 $db->debug_output.= $message.$db->getOption('log_line_break');