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<?php
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// +----------------------------------------------------------------------+
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// | PHP Version 4 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1998-2004 Manuel Lemos, Tomas V.V.Cox, |
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// | Stig. S. Bakken, Lukas Smith |
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// | All rights reserved. |
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// +----------------------------------------------------------------------+
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// | MDB is a merge of PEAR DB and Metabases that provides a unified DB |
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// | API as well as database abstraction for PHP applications. |
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// | This LICENSE is in the BSD license style. |
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// | |
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// | Redistribution and use in source and binary forms, with or without |
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// | modification, are permitted provided that the following conditions |
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// | are met: |
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// | |
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// | Redistributions of source code must retain the above copyright |
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// | notice, this list of conditions and the following disclaimer. |
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// | |
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// | Redistributions in binary form must reproduce the above copyright |
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// | notice, this list of conditions and the following disclaimer in the |
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// | documentation and/or other materials provided with the distribution. |
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// | |
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// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
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// | Lukas Smith nor the names of his contributors may be used to endorse |
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// | or promote products derived from this software without specific prior|
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// | written permission. |
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// | |
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// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
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// | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
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// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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// | POSSIBILITY OF SUCH DAMAGE. |
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// +----------------------------------------------------------------------+
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// | Author: Lukas Smith <smith@backendmedia.com> |
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// +----------------------------------------------------------------------+
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//
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// $Id: mysql.php,v 1.44.4.10 2004/04/19 20:21:51 lsmith Exp $
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//
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if(!defined('MDB_MANAGER_MYSQL_INCLUDED'))
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{
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define('MDB_MANAGER_MYSQL_INCLUDED', 1);
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require_once('MDB/Modules/Manager/Common.php');
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/**
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* MDB MySQL driver for the management modules
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*
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* @package MDB
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* @category Database
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* @access private
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* @author Lukas Smith <smith@backendmedia.com>
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*/
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class MDB_Manager_mysql extends MDB_Manager_Common
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{
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// {{{ properties
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var $verified_table_types = array();
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// }}}
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// {{{ _verifyTransactionalTableType()
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/**
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* verify that chosen transactional table hanlder is available in the database
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*
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* @param object $db database object that is extended by this class
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* @param string $table_type name of the table handler
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* @return mixed MDB_OK on success, a MDB error on failure
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* @access private
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*/
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function _verifyTransactionalTableType(&$db, $table_type)
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{
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switch(strtoupper($table_type)) {
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case 'BERKELEYDB':
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case 'BDB':
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$check = array('have_bdb');
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break;
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case 'INNODB':
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$check = array('have_innobase', 'have_innodb');
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break;
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case 'GEMINI':
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$check = array('have_gemini');
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break;
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case 'HEAP':
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case 'ISAM':
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case 'MERGE':
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case 'MRG_MYISAM':
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case 'MYISAM':
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case '':
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return(MDB_OK);
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default:
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return($db->raiseError(MDB_ERROR_UNSUPPORTED, NULL, NULL,
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'Verify transactional table',
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$table_type.' is not a supported table type'));
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}
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if(isset($this->verified_table_types[$table_type])
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&& $this->verified_table_types[$table_type] == $db->connection)
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{
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return(MDB_OK);
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}
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$not_supported = FALSE;
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for($i=0, $j=count($check); $i<$j; ++$i) {
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$query = 'SHOW VARIABLES LIKE '.$db->getValue('text', $check[$i]);
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$has = $db->queryRow($query, NULL, MDB_FETCHMODE_ORDERED);
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if (MDB::isError($has)) {
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return $has;
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}
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if (is_array($has)) {
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$not_supported = TRUE;
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if ($has[1] == 'YES') {
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$this->verified_table_types[$table_type] = $db->connection;
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return(MDB_OK);
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}
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}
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}
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if ($not_supported) {
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return($db->raiseError(MDB_ERROR_UNSUPPORTED, null, null,
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$table_type.' is not a supported table type by this MySQL database server'));
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}
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return($db->raiseError(MDB_ERROR_UNSUPPORTED, null, null,
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'could not tell if '.$table_type.' is a supported table type'));
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}
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// }}}
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// {{{ createDatabase()
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/**
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* create a new database
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*
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* @param object $db database object that is extended by this class
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* @param string $name name of the database that should be created
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* @return mixed MDB_OK on success, a MDB error on failure
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* @access public
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*/
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function createDatabase(&$db, $name)
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{
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if (MDB::isError($result = $db->connect())) {
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return($result);
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}
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$query = 'CREATE DATABASE '.$name;
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if(MDB::isError($db->query($query))) {
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return($db->mysqlRaiseError());
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}
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return(MDB_OK);
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}
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// }}}
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// {{{ dropDatabase()
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/**
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* drop an existing database
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*
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* @param object $db database object that is extended by this class
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* @param string $name name of the database that should be dropped
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* @return mixed MDB_OK on success, a MDB error on failure
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* @access public
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*/
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function dropDatabase(&$db, $name)
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{
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if (MDB::isError($result = $db->connect())) {
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return($result);
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}
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$query = 'DROP DATABASE '.$name;
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if(MDB::isError($db->query($query))) {
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return($db->mysqlRaiseError());
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}
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return(MDB_OK);
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}
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// }}}
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// {{{ createTable()
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/**
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* create a new table
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*
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* @param object $db database object that is extended by this class
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* @param string $name Name of the database that should be created
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* @param array $fields Associative array that contains the definition of
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* each field of the new table. The indexes of the array
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* entries are the names of the fields of the table an
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* the array entry values are associative arrays like
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* those that are meant to be passed with the field
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* definitions to get[Type]Declaration() functions.
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*
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* Example
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* array(
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*
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* 'id' => array(
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* 'type' => 'integer',
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* 'unsigned' => 1
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* 'notnull' => 1
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* 'default' => 0
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* ),
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* 'name' => array(
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* 'type' => 'text',
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* 'length' => 12
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* ),
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* 'password' => array(
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* 'type' => 'text',
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* 'length' => 12
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* )
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* );
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* @return mixed MDB_OK on success, a MDB error on failure
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* @access public
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*/
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function createTable(&$db, $name, $fields)
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{
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if (!isset($name) || !strcmp($name, '')) {
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return($db->raiseError(MDB_ERROR_CANNOT_CREATE, NULL, NULL,
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'no valid table name specified'));
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}
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if (count($fields) == 0) {
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return($db->raiseError(MDB_ERROR_CANNOT_CREATE, NULL, NULL,
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'no fields specified for table "'.$name.'"'));
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}
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$verify = $this->_verifyTransactionalTableType($db, $db->default_table_type);
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if(MDB::isError($verify)) {
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return($verify);
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}
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if (MDB::isError($query_fields = $db->getFieldDeclarationList($fields))) {
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return($db->raiseError(MDB_ERROR_CANNOT_CREATE, NULL, NULL, 'unkown error'));
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}
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if (isset($db->supported['Transactions'])
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&& $db->default_table_type=='BDB'
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) {
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$query_fields .= ', dummy_primary_key INT NOT NULL AUTO_INCREMENT, PRIMARY KEY (dummy_primary_key)';
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}
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$query = "CREATE TABLE $name ($query_fields)".
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(strlen($db->default_table_type) ? ' TYPE='.$db->default_table_type : '');
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return($db->query($query));
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}
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// }}}
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// {{{ alterTable()
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/**
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* alter an existing table
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*
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* @param object $db database object that is extended by this class
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* @param string $name name of the table that is intended to be changed.
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* @param array $changes associative array that contains the details of each type
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* of change that is intended to be performed. The types of
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* changes that are currently supported are defined as follows:
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*
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* name
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*
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* New name for the table.
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*
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* AddedFields
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*
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* Associative array with the names of fields to be added as
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* indexes of the array. The value of each entry of the array
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* should be set to another associative array with the properties
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* of the fields to be added. The properties of the fields should
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* be the same as defined by the Metabase parser.
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*
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* Additionally, there should be an entry named Declaration that
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* is expected to contain the portion of the field declaration already
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* in DBMS specific SQL code as it is used in the CREATE TABLE statement.
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*
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* RemovedFields
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*
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* Associative array with the names of fields to be removed as indexes
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* of the array. Currently the values assigned to each entry are ignored.
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* An empty array should be used for future compatibility.
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*
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* RenamedFields
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*
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* Associative array with the names of fields to be renamed as indexes
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* of the array. The value of each entry of the array should be set to
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* another associative array with the entry named name with the new
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* field name and the entry named Declaration that is expected to contain
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* the portion of the field declaration already in DBMS specific SQL code
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* as it is used in the CREATE TABLE statement.
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*
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* ChangedFields
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*
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* Associative array with the names of the fields to be changed as indexes
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* of the array. Keep in mind that if it is intended to change either the
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* name of a field and any other properties, the ChangedFields array entries
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* should have the new names of the fields as array indexes.
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*
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* The value of each entry of the array should be set to another associative
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* array with the properties of the fields to that are meant to be changed as
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* array entries. These entries should be assigned to the new values of the
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* respective properties. The properties of the fields should be the same
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* as defined by the Metabase parser.
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*
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* If the default property is meant to be added, removed or changed, there
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* should also be an entry with index ChangedDefault assigned to 1. Similarly,
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* if the notnull constraint is to be added or removed, there should also be
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* an entry with index ChangedNotNull assigned to 1.
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*
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* Additionally, there should be an entry named Declaration that is expected
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* to contain the portion of the field changed declaration already in DBMS
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* specific SQL code as it is used in the CREATE TABLE statement.
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* Example
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* array(
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* 'name' => 'userlist',
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* 'AddedFields' => array(
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* 'quota' => array(
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* 'type' => 'integer',
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* 'unsigned' => 1
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* 'Declaration' => 'quota INT'
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* )
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* ),
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* 'RemovedFields' => array(
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* 'file_limit' => array(),
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* 'time_limit' => array()
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* ),
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* 'ChangedFields' => array(
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* 'gender' => array(
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* 'default' => 'M',
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* 'ChangeDefault' => 1,
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* 'Declaration' => "gender CHAR(1) DEFAULT 'M'"
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* )
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* ),
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* 'RenamedFields' => array(
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* 'sex' => array(
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* 'name' => 'gender',
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* 'Declaration' => "gender CHAR(1) DEFAULT 'M'"
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* )
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* )
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* )
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*
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* @param boolean $check indicates whether the function should just check if the DBMS driver
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* can perform the requested table alterations if the value is true or
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* actually perform them otherwise.
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* @access public
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*
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* @return mixed MDB_OK on success, a MDB error on failure
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*/
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342 |
function alterTable(&$db, $name, $changes, $check)
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343 |
{
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344 |
if ($check) {
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345 |
for($change = 0,reset($changes);
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$change < count($changes);
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next($changes), $change++)
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{
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349 |
switch(key($changes)) {
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case 'AddedFields':
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351 |
case 'RemovedFields':
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352 |
case 'ChangedFields':
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353 |
case 'RenamedFields':
|
|
|
354 |
case 'name':
|
|
|
355 |
break;
|
|
|
356 |
default:
|
|
|
357 |
return($db->raiseError(MDB_ERROR_CANNOT_ALTER, NULL, NULL,
|
|
|
358 |
'Alter table: change type "'.key($changes).'" not yet supported'));
|
|
|
359 |
}
|
|
|
360 |
}
|
|
|
361 |
return(MDB_OK);
|
|
|
362 |
} else {
|
|
|
363 |
$query = (isset($changes['name']) ? 'RENAME AS '.$changes['name'] : '');
|
|
|
364 |
if (isset($changes['AddedFields'])) {
|
|
|
365 |
$fields = $changes['AddedFields'];
|
|
|
366 |
for($field = 0, reset($fields);
|
|
|
367 |
$field<count($fields);
|
|
|
368 |
next($fields), $field++)
|
|
|
369 |
{
|
|
|
370 |
if (strcmp($query, '')) {
|
|
|
371 |
$query .= ',';
|
|
|
372 |
}
|
|
|
373 |
$query .= 'ADD '.$fields[key($fields)]['Declaration'];
|
|
|
374 |
}
|
|
|
375 |
}
|
|
|
376 |
if (isset($changes['RemovedFields'])) {
|
|
|
377 |
$fields = $changes['RemovedFields'];
|
|
|
378 |
for($field = 0,reset($fields);
|
|
|
379 |
$field<count($fields);
|
|
|
380 |
next($fields), $field++)
|
|
|
381 |
{
|
|
|
382 |
if (strcmp($query, '')) {
|
|
|
383 |
$query .= ',';
|
|
|
384 |
}
|
|
|
385 |
$query .= 'DROP '.key($fields);
|
|
|
386 |
}
|
|
|
387 |
}
|
|
|
388 |
$renamed_fields = array();
|
|
|
389 |
if (isset($changes['RenamedFields'])) {
|
|
|
390 |
$fields = $changes['RenamedFields'];
|
|
|
391 |
for($field = 0,reset($fields);
|
|
|
392 |
$field<count($fields);
|
|
|
393 |
next($fields), $field++)
|
|
|
394 |
{
|
|
|
395 |
$renamed_fields[$fields[key($fields)]['name']] = key($fields);
|
|
|
396 |
}
|
|
|
397 |
}
|
|
|
398 |
if (isset($changes['ChangedFields'])) {
|
|
|
399 |
$fields = $changes['ChangedFields'];
|
|
|
400 |
for($field = 0,reset($fields);
|
|
|
401 |
$field<count($fields);
|
|
|
402 |
next($fields), $field++)
|
|
|
403 |
{
|
|
|
404 |
if (strcmp($query, '')) {
|
|
|
405 |
$query .= ',';
|
|
|
406 |
}
|
|
|
407 |
if (isset($renamed_fields[key($fields)])) {
|
|
|
408 |
$field_name = $renamed_fields[key($fields)];
|
|
|
409 |
unset($renamed_fields[key($fields)]);
|
|
|
410 |
} else {
|
|
|
411 |
$field_name = key($fields);
|
|
|
412 |
}
|
|
|
413 |
$query .= "CHANGE $field_name ".$fields[key($fields)]['Declaration'];
|
|
|
414 |
}
|
|
|
415 |
}
|
|
|
416 |
if (count($renamed_fields))
|
|
|
417 |
{
|
|
|
418 |
for($field = 0,reset($renamed_fields);
|
|
|
419 |
$field<count($renamed_fields);
|
|
|
420 |
next($renamed_fields), $field++)
|
|
|
421 |
{
|
|
|
422 |
if (strcmp($query, '')) {
|
|
|
423 |
$query .= ',';
|
|
|
424 |
}
|
|
|
425 |
$old_field_name = $renamed_fields[Key($renamed_fields)];
|
|
|
426 |
$query .= "CHANGE $old_field_name ".
|
|
|
427 |
$changes['RenamedFields'][$old_field_name]['Declaration'];
|
|
|
428 |
}
|
|
|
429 |
}
|
|
|
430 |
return($db->query("ALTER TABLE $name $query"));
|
|
|
431 |
}
|
|
|
432 |
}
|
|
|
433 |
|
|
|
434 |
// }}}
|
|
|
435 |
// {{{ listDatabases()
|
|
|
436 |
|
|
|
437 |
/**
|
|
|
438 |
* list all databases
|
|
|
439 |
*
|
|
|
440 |
* @param object $db database object that is extended by this class
|
|
|
441 |
* @return mixed data array on success, a MDB error on failure
|
|
|
442 |
* @access public
|
|
|
443 |
*/
|
|
|
444 |
function listDatabases(&$db)
|
|
|
445 |
{
|
|
|
446 |
$result = $db->queryCol('SHOW DATABASES');
|
|
|
447 |
if(MDB::isError($result)) {
|
|
|
448 |
return($result);
|
|
|
449 |
}
|
|
|
450 |
return($result);
|
|
|
451 |
}
|
|
|
452 |
|
|
|
453 |
// }}}
|
|
|
454 |
// {{{ listUsers()
|
|
|
455 |
|
|
|
456 |
/**
|
|
|
457 |
* list all users
|
|
|
458 |
*
|
|
|
459 |
* @param object $db database object that is extended by this class
|
|
|
460 |
* @return mixed data array on success, a MDB error on failure
|
|
|
461 |
* @access public
|
|
|
462 |
*/
|
|
|
463 |
function listUsers(&$db)
|
|
|
464 |
{
|
|
|
465 |
$result = $db->queryCol('SELECT DISTINCT USER FROM USER');
|
|
|
466 |
if(MDB::isError($result)) {
|
|
|
467 |
return($result);
|
|
|
468 |
}
|
|
|
469 |
return($result);
|
|
|
470 |
}
|
|
|
471 |
|
|
|
472 |
// }}}
|
|
|
473 |
// {{{ listTables()
|
|
|
474 |
|
|
|
475 |
/**
|
|
|
476 |
* list all tables in the current database
|
|
|
477 |
*
|
|
|
478 |
* @param object $db database object that is extended by this class
|
|
|
479 |
* @return mixed data array on success, a MDB error on failure
|
|
|
480 |
* @access public
|
|
|
481 |
*/
|
|
|
482 |
function listTables(&$db)
|
|
|
483 |
{
|
|
|
484 |
$table_names = $db->queryCol('SHOW TABLES');
|
|
|
485 |
if(MDB::isError($table_names)) {
|
|
|
486 |
return($table_names);
|
|
|
487 |
}
|
|
|
488 |
for($i = 0, $j = count($table_names), $tables = array(); $i < $j; ++$i)
|
|
|
489 |
{
|
|
|
490 |
if (!$this->_isSequenceName($db, $table_names[$i]))
|
|
|
491 |
$tables[] = $table_names[$i];
|
|
|
492 |
}
|
|
|
493 |
return($tables);
|
|
|
494 |
}
|
|
|
495 |
|
|
|
496 |
// }}}
|
|
|
497 |
// {{{ listTableFields()
|
|
|
498 |
|
|
|
499 |
/**
|
|
|
500 |
* list all fields in a tables in the current database
|
|
|
501 |
*
|
|
|
502 |
* @param object $db database object that is extended by this class
|
|
|
503 |
* @param string $table name of table that should be used in method
|
|
|
504 |
* @return mixed data array on success, a MDB error on failure
|
|
|
505 |
* @access public
|
|
|
506 |
*/
|
|
|
507 |
function listTableFields(&$db, $table)
|
|
|
508 |
{
|
|
|
509 |
$result = $db->query("SHOW COLUMNS FROM $table");
|
|
|
510 |
if(MDB::isError($result)) {
|
|
|
511 |
return($result);
|
|
|
512 |
}
|
|
|
513 |
$columns = $db->getColumnNames($result);
|
|
|
514 |
if(MDB::isError($columns)) {
|
|
|
515 |
$db->freeResult($columns);
|
|
|
516 |
return($columns);
|
|
|
517 |
}
|
|
|
518 |
if ($db->options['optimize'] != 'portability') {
|
|
|
519 |
$columns = array_change_key_case($columns);
|
|
|
520 |
}
|
|
|
521 |
if(!isset($columns['field'])) {
|
|
|
522 |
$db->freeResult($result);
|
|
|
523 |
return($db->raiseError(MDB_ERROR_MANAGER, NULL, NULL,
|
|
|
524 |
'List table fields: show columns does not return the table field names'));
|
|
|
525 |
}
|
|
|
526 |
$fields = $db->fetchCol($result, $columns['field']);
|
|
|
527 |
if (!MDB::isError($fields)) {
|
|
|
528 |
$fields = array_diff($fields, array($db->dummy_primary_key));
|
|
|
529 |
}
|
|
|
530 |
$db->freeResult($result);
|
|
|
531 |
return($fields);
|
|
|
532 |
}
|
|
|
533 |
|
|
|
534 |
// }}}
|
|
|
535 |
// {{{ getTableFieldDefinition()
|
|
|
536 |
|
|
|
537 |
/**
|
|
|
538 |
* get the stucture of a field into an array
|
|
|
539 |
*
|
|
|
540 |
* @param object $db database object that is extended by this class
|
|
|
541 |
* @param string $table name of table that should be used in method
|
|
|
542 |
* @param string $field_name name of field that should be used in method
|
|
|
543 |
* @return mixed data array on success, a MDB error on failure
|
|
|
544 |
* @access public
|
|
|
545 |
*/
|
|
|
546 |
function getTableFieldDefinition(&$db, $table, $field_name)
|
|
|
547 |
{
|
|
|
548 |
if ($field_name == $db->dummy_primary_key) {
|
|
|
549 |
return($db->raiseError(MDB_ERROR_MANAGER, NULL, NULL,
|
|
|
550 |
'Get table field definiton: '.$db->dummy_primary_key.' is an hidden column'));
|
|
|
551 |
}
|
|
|
552 |
$result = $db->query("SHOW COLUMNS FROM $table");
|
|
|
553 |
if(MDB::isError($result)) {
|
|
|
554 |
return($result);
|
|
|
555 |
}
|
|
|
556 |
$columns = $db->getColumnNames($result);
|
|
|
557 |
if(MDB::isError($columns)) {
|
|
|
558 |
$db->freeResult($columns);
|
|
|
559 |
return($columns);
|
|
|
560 |
}
|
|
|
561 |
if ($db->options['optimize'] != 'portability') {
|
|
|
562 |
$columns = array_change_key_case($columns);
|
|
|
563 |
}
|
|
|
564 |
if (!isset($columns[$column = 'field'])
|
|
|
565 |
|| !isset($columns[$column = 'type']))
|
|
|
566 |
{
|
|
|
567 |
$db->freeResult($result);
|
|
|
568 |
return($db->raiseError(MDB_ERROR_MANAGER, NULL, NULL,
|
|
|
569 |
'Get table field definition: show columns does not return the column '.$column));
|
|
|
570 |
}
|
|
|
571 |
$field_column = $columns['field'];
|
|
|
572 |
$type_column = $columns['type'];
|
|
|
573 |
while (is_array($row = $db->fetchInto($result))) {
|
|
|
574 |
if ($field_name == $row[$field_column]) {
|
|
|
575 |
$db_type = strtolower($row[$type_column]);
|
|
|
576 |
$db_type = strtok($db_type, '(), ');
|
|
|
577 |
if ($db_type == 'national') {
|
|
|
578 |
$db_type = strtok('(), ');
|
|
|
579 |
}
|
|
|
580 |
$length = strtok('(), ');
|
|
|
581 |
$decimal = strtok('(), ');
|
|
|
582 |
$type = array();
|
|
|
583 |
switch($db_type) {
|
|
|
584 |
case 'tinyint':
|
|
|
585 |
case 'smallint':
|
|
|
586 |
case 'mediumint':
|
|
|
587 |
case 'int':
|
|
|
588 |
case 'integer':
|
|
|
589 |
case 'bigint':
|
|
|
590 |
$type[0] = 'integer';
|
|
|
591 |
if($length == '1') {
|
|
|
592 |
$type[1] = 'boolean';
|
|
|
593 |
if (preg_match('/^[is|has]/', $field_name)) {
|
|
|
594 |
$type = array_reverse($type);
|
|
|
595 |
}
|
|
|
596 |
}
|
|
|
597 |
break;
|
|
|
598 |
case 'tinytext':
|
|
|
599 |
case 'mediumtext':
|
|
|
600 |
case 'longtext':
|
|
|
601 |
case 'text':
|
|
|
602 |
case 'char':
|
|
|
603 |
case 'varchar':
|
|
|
604 |
$type[0] = 'text';
|
|
|
605 |
if($decimal == 'binary') {
|
|
|
606 |
$type[1] = 'blob';
|
|
|
607 |
} elseif($length == '1') {
|
|
|
608 |
$type[1] = 'boolean';
|
|
|
609 |
if (preg_match('/[is|has]/', $field_name)) {
|
|
|
610 |
$type = array_reverse($type);
|
|
|
611 |
}
|
|
|
612 |
} elseif(strstr($db_type, 'text'))
|
|
|
613 |
$type[1] = 'clob';
|
|
|
614 |
break;
|
|
|
615 |
case 'enum':
|
|
|
616 |
preg_match_all('/\'.+\'/U',$row[$type_column], $matches);
|
|
|
617 |
$length = 0;
|
|
|
618 |
if(is_array($matches)) {
|
|
|
619 |
foreach($matches[0] as $value) {
|
|
|
620 |
$length = max($length, strlen($value)-2);
|
|
|
621 |
}
|
|
|
622 |
}
|
|
|
623 |
unset($decimal);
|
|
|
624 |
case 'set':
|
|
|
625 |
$type[0] = 'text';
|
|
|
626 |
$type[1] = 'integer';
|
|
|
627 |
break;
|
|
|
628 |
case 'date':
|
|
|
629 |
$type[0] = 'date';
|
|
|
630 |
break;
|
|
|
631 |
case 'datetime':
|
|
|
632 |
case 'timestamp':
|
|
|
633 |
$type[0] = 'timestamp';
|
|
|
634 |
break;
|
|
|
635 |
case 'time':
|
|
|
636 |
$type[0] = 'time';
|
|
|
637 |
break;
|
|
|
638 |
case 'float':
|
|
|
639 |
case 'double':
|
|
|
640 |
case 'real':
|
|
|
641 |
$type[0] = 'float';
|
|
|
642 |
break;
|
|
|
643 |
case 'decimal':
|
|
|
644 |
case 'numeric':
|
|
|
645 |
$type[0] = 'decimal';
|
|
|
646 |
break;
|
|
|
647 |
case 'tinyblob':
|
|
|
648 |
case 'mediumblob':
|
|
|
649 |
case 'longblob':
|
|
|
650 |
case 'blob':
|
|
|
651 |
$type[0] = 'blob';
|
|
|
652 |
$type[1] = 'text';
|
|
|
653 |
break;
|
|
|
654 |
case 'year':
|
|
|
655 |
$type[0] = 'integer';
|
|
|
656 |
$type[1] = 'date';
|
|
|
657 |
break;
|
|
|
658 |
default:
|
|
|
659 |
return($db->raiseError(MDB_ERROR_MANAGER, NULL, NULL,
|
|
|
660 |
'List table fields: unknown database attribute type'));
|
|
|
661 |
}
|
|
|
662 |
unset($notnull);
|
|
|
663 |
if (isset($columns['null'])
|
|
|
664 |
&& $row[$columns['null']] != 'YES')
|
|
|
665 |
{
|
|
|
666 |
$notnull = 1;
|
|
|
667 |
}
|
|
|
668 |
unset($default);
|
|
|
669 |
if (isset($columns['default'])
|
|
|
670 |
&& isset($row[$columns['default']]))
|
|
|
671 |
{
|
|
|
672 |
$default = $row[$columns['default']];
|
|
|
673 |
}
|
|
|
674 |
$definition = $field_choices = array();
|
|
|
675 |
for($datatype = 0; $datatype < count($type); $datatype++) {
|
|
|
676 |
$field_choices[$datatype] = array('type' => $type[$datatype]);
|
|
|
677 |
if(isset($notnull)) {
|
|
|
678 |
$field_choices[$datatype]['notnull'] = 1;
|
|
|
679 |
}
|
|
|
680 |
if(isset($default)) {
|
|
|
681 |
$field_choices[$datatype]['default'] = $default;
|
|
|
682 |
}
|
|
|
683 |
if($type[$datatype] != 'boolean'
|
|
|
684 |
&& $type[$datatype] != 'time'
|
|
|
685 |
&& $type[$datatype] != 'date'
|
|
|
686 |
&& $type[$datatype] != 'timestamp')
|
|
|
687 |
{
|
|
|
688 |
if(strlen($length)) {
|
|
|
689 |
$field_choices[$datatype]['length'] = $length;
|
|
|
690 |
}
|
|
|
691 |
}
|
|
|
692 |
}
|
|
|
693 |
$definition[0] = $field_choices;
|
|
|
694 |
if (isset($columns['extra'])
|
|
|
695 |
&& isset($row[$columns['extra']])
|
|
|
696 |
&& $row[$columns['extra']] == 'auto_increment')
|
|
|
697 |
{
|
|
|
698 |
$implicit_sequence = array();
|
|
|
699 |
$implicit_sequence['on'] = array();
|
|
|
700 |
$implicit_sequence['on']['table'] = $table;
|
|
|
701 |
$implicit_sequence['on']['field'] = $field_name;
|
|
|
702 |
$definition[1]['name'] = $table.'_'.$field_name;
|
|
|
703 |
$definition[1]['definition'] = $implicit_sequence;
|
|
|
704 |
}
|
|
|
705 |
if (isset($columns['key'])
|
|
|
706 |
&& isset($row[$columns['key']])
|
|
|
707 |
&& $row[$columns['key']] == 'PRI')
|
|
|
708 |
{
|
|
|
709 |
// check that its not just a unique field
|
|
|
710 |
$query = "SHOW INDEX FROM $table";
|
|
|
711 |
$indexes = $db->queryAll($query, NULL, MDB_FETCHMODE_ASSOC);
|
|
|
712 |
if(MDB::isError($indexes)) {
|
|
|
713 |
return($indexes);
|
|
|
714 |
}
|
|
|
715 |
$is_primary = FALSE;
|
|
|
716 |
foreach($indexes as $index) {
|
|
|
717 |
if ($db->options['optimize'] != 'portability') {
|
|
|
718 |
array_change_key_case($index);
|
|
|
719 |
}
|
|
|
720 |
if ($index['key_name'] == 'PRIMARY'
|
|
|
721 |
&& $index['column_name'] == $field_name
|
|
|
722 |
) {
|
|
|
723 |
$is_primary = TRUE;
|
|
|
724 |
break;
|
|
|
725 |
}
|
|
|
726 |
}
|
|
|
727 |
if($is_primary) {
|
|
|
728 |
$implicit_index = array();
|
|
|
729 |
$implicit_index['unique'] = 1;
|
|
|
730 |
$implicit_index['FIELDS'][$field_name] = '';
|
|
|
731 |
$definition[2]['name'] = $field_name;
|
|
|
732 |
$definition[2]['definition'] = $implicit_index;
|
|
|
733 |
}
|
|
|
734 |
}
|
|
|
735 |
$db->freeResult($result);
|
|
|
736 |
return($definition);
|
|
|
737 |
}
|
|
|
738 |
}
|
|
|
739 |
if(!$db->options['autofree']) {
|
|
|
740 |
$db->freeResult($result);
|
|
|
741 |
}
|
|
|
742 |
if(MDB::isError($row)) {
|
|
|
743 |
return($row);
|
|
|
744 |
}
|
|
|
745 |
return($db->raiseError(MDB_ERROR_MANAGER, NULL, NULL,
|
|
|
746 |
'Get table field definition: it was not specified an existing table column'));
|
|
|
747 |
}
|
|
|
748 |
|
|
|
749 |
// }}}
|
|
|
750 |
// {{{ createIndex()
|
|
|
751 |
|
|
|
752 |
/**
|
|
|
753 |
* get the stucture of a field into an array
|
|
|
754 |
*
|
|
|
755 |
* @param object $db database object that is extended by this class
|
|
|
756 |
* @param string $table name of the table on which the index is to be created
|
|
|
757 |
* @param string $name name of the index to be created
|
|
|
758 |
* @param array $definition associative array that defines properties of the index to be created.
|
|
|
759 |
* Currently, only one property named FIELDS is supported. This property
|
|
|
760 |
* is also an associative with the names of the index fields as array
|
|
|
761 |
* indexes. Each entry of this array is set to another type of associative
|
|
|
762 |
* array that specifies properties of the index that are specific to
|
|
|
763 |
* each field.
|
|
|
764 |
*
|
|
|
765 |
* Currently, only the sorting property is supported. It should be used
|
|
|
766 |
* to define the sorting direction of the index. It may be set to either
|
|
|
767 |
* ascending or descending.
|
|
|
768 |
*
|
|
|
769 |
* Not all DBMS support index sorting direction configuration. The DBMS
|
|
|
770 |
* drivers of those that do not support it ignore this property. Use the
|
|
|
771 |
* function support() to determine whether the DBMS driver can manage indexes.
|
|
|
772 |
|
|
|
773 |
* Example
|
|
|
774 |
* array(
|
|
|
775 |
* 'FIELDS' => array(
|
|
|
776 |
* 'user_name' => array(
|
|
|
777 |
* 'sorting' => 'ascending'
|
|
|
778 |
* ),
|
|
|
779 |
* 'last_login' => array()
|
|
|
780 |
* )
|
|
|
781 |
* )
|
|
|
782 |
* @return mixed MDB_OK on success, a MDB error on failure
|
|
|
783 |
* @access public
|
|
|
784 |
*/
|
|
|
785 |
function createIndex(&$db, $table, $name, $definition)
|
|
|
786 |
{
|
|
|
787 |
$query = "ALTER TABLE $table ADD ".(isset($definition['unique']) ? 'UNIQUE' : 'INDEX')
|
|
|
788 |
." $name (";
|
|
|
789 |
for($field = 0, reset($definition['FIELDS']);
|
|
|
790 |
$field < count($definition['FIELDS']);
|
|
|
791 |
$field++, next($definition['FIELDS']))
|
|
|
792 |
{
|
|
|
793 |
if ($field > 0) {
|
|
|
794 |
$query .= ',';
|
|
|
795 |
}
|
|
|
796 |
$query .= key($definition['FIELDS']);
|
|
|
797 |
}
|
|
|
798 |
$query .= ')';
|
|
|
799 |
return($db->query($query));
|
|
|
800 |
}
|
|
|
801 |
|
|
|
802 |
// }}}
|
|
|
803 |
// {{{ dropIndex()
|
|
|
804 |
|
|
|
805 |
/**
|
|
|
806 |
* drop existing index
|
|
|
807 |
*
|
|
|
808 |
* @param object $db database object that is extended by this class
|
|
|
809 |
* @param string $table name of table that should be used in method
|
|
|
810 |
* @param string $name name of the index to be dropped
|
|
|
811 |
* @return mixed MDB_OK on success, a MDB error on failure
|
|
|
812 |
* @access public
|
|
|
813 |
*/
|
|
|
814 |
function dropIndex(&$db, $table, $name)
|
|
|
815 |
{
|
|
|
816 |
return($db->query("ALTER TABLE $table DROP INDEX $name"));
|
|
|
817 |
}
|
|
|
818 |
|
|
|
819 |
// }}}
|
|
|
820 |
// {{{ listTableIndexes()
|
|
|
821 |
|
|
|
822 |
/**
|
|
|
823 |
* list all indexes in a table
|
|
|
824 |
*
|
|
|
825 |
* @param object $db database object that is extended by this class
|
|
|
826 |
* @param string $table name of table that should be used in method
|
|
|
827 |
* @return mixed data array on success, a MDB error on failure
|
|
|
828 |
* @access public
|
|
|
829 |
*/
|
|
|
830 |
function listTableIndexes(&$db, $table)
|
|
|
831 |
{
|
|
|
832 |
if(MDB::isError($result = $db->query("SHOW INDEX FROM $table"))) {
|
|
|
833 |
return($result);
|
|
|
834 |
}
|
|
|
835 |
$key_name = 'Key_name';
|
|
|
836 |
if ($db->options['optimize'] != 'portability') {
|
|
|
837 |
$key_name = strtolower($key_name);
|
|
|
838 |
}
|
|
|
839 |
$indexes_all = $db->fetchCol($result, $key_name);
|
|
|
840 |
for($found = $indexes = array(), $index = 0, $indexes_all_cnt = count($indexes_all);
|
|
|
841 |
$index < $indexes_all_cnt;
|
|
|
842 |
$index++)
|
|
|
843 |
{
|
|
|
844 |
if ($indexes_all[$index] != 'PRIMARY'
|
|
|
845 |
&& !isset($found[$indexes_all[$index]]))
|
|
|
846 |
{
|
|
|
847 |
$indexes[] = $indexes_all[$index];
|
|
|
848 |
$found[$indexes_all[$index]] = 1;
|
|
|
849 |
}
|
|
|
850 |
}
|
|
|
851 |
return($indexes);
|
|
|
852 |
}
|
|
|
853 |
|
|
|
854 |
// }}}
|
|
|
855 |
// {{{ getTableIndexDefinition()
|
|
|
856 |
|
|
|
857 |
/**
|
|
|
858 |
* get the stucture of an index into an array
|
|
|
859 |
*
|
|
|
860 |
* @param object $db database object that is extended by this class
|
|
|
861 |
* @param string $table name of table that should be used in method
|
|
|
862 |
* @param string $index_name name of index that should be used in method
|
|
|
863 |
* @return mixed data array on success, a MDB error on failure
|
|
|
864 |
* @access public
|
|
|
865 |
*/
|
|
|
866 |
function getTableIndexDefinition(&$db, $table, $index_name)
|
|
|
867 |
{
|
|
|
868 |
if($index_name == 'PRIMARY') {
|
|
|
869 |
return($db->raiseError(MDB_ERROR_MANAGER, NULL, NULL,
|
|
|
870 |
'Get table index definition: PRIMARY is an hidden index'));
|
|
|
871 |
}
|
|
|
872 |
if(MDB::isError($result = $db->query("SHOW INDEX FROM $table"))) {
|
|
|
873 |
return($result);
|
|
|
874 |
}
|
|
|
875 |
$definition = array();
|
|
|
876 |
while (is_array($row = $db->fetchInto($result, MDB_FETCHMODE_ASSOC))) {
|
|
|
877 |
if ($db->options['optimize'] != 'portability') {
|
|
|
878 |
$row = array_change_key_case($row);
|
|
|
879 |
}
|
|
|
880 |
$key_name = $row['key_name'];
|
|
|
881 |
if(!strcmp($index_name, $key_name)) {
|
|
|
882 |
if(!$row['non_unique']) {
|
|
|
883 |
$definition[$index_name]['unique'] = 1;
|
|
|
884 |
}
|
|
|
885 |
$column_name = $row['column_name'];
|
|
|
886 |
$definition['FIELDS'][$column_name] = array();
|
|
|
887 |
if(isset($row['collation'])) {
|
|
|
888 |
$definition['FIELDS'][$column_name]['sorting'] = ($row['collation'] == 'A' ? 'ascending' : 'descending');
|
|
|
889 |
}
|
|
|
890 |
}
|
|
|
891 |
}
|
|
|
892 |
$db->freeResult($result);
|
|
|
893 |
if (!isset($definition['FIELDS'])) {
|
|
|
894 |
return($db->raiseError(MDB_ERROR_MANAGER, NULL, NULL,
|
|
|
895 |
'Get table index definition: it was not specified an existing table index'));
|
|
|
896 |
}
|
|
|
897 |
return($definition);
|
|
|
898 |
}
|
|
|
899 |
|
|
|
900 |
// }}}
|
|
|
901 |
// {{{ createSequence()
|
|
|
902 |
|
|
|
903 |
/**
|
|
|
904 |
* create sequence
|
|
|
905 |
*
|
|
|
906 |
* @param object $db database object that is extended by this class
|
|
|
907 |
* @param string $seq_name name of the sequence to be created
|
|
|
908 |
* @param string $start start value of the sequence; default is 1
|
|
|
909 |
* @return mixed MDB_OK on success, a MDB error on failure
|
|
|
910 |
* @access public
|
|
|
911 |
*/
|
|
|
912 |
function createSequence(&$db, $seq_name, $start)
|
|
|
913 |
{
|
|
|
914 |
$sequence_name = $db->getSequenceName($seq_name);
|
|
|
915 |
$res = $db->query("CREATE TABLE $sequence_name
|
|
|
916 |
(".$db->options['sequence_col_name']." INT NOT NULL AUTO_INCREMENT, PRIMARY KEY ("
|
|
|
917 |
.$db->options['sequence_col_name']."))");
|
|
|
918 |
if (MDB::isError($res)) {
|
|
|
919 |
return($res);
|
|
|
920 |
}
|
|
|
921 |
if ($start == 1) {
|
|
|
922 |
return(MDB_OK);
|
|
|
923 |
}
|
|
|
924 |
$res = $db->query("INSERT INTO $sequence_name (".$db->options['sequence_col_name'].") VALUES (".($start-1).')');
|
|
|
925 |
if (!MDB::isError($res)) {
|
|
|
926 |
return(MDB_OK);
|
|
|
927 |
}
|
|
|
928 |
// Handle error
|
|
|
929 |
$result = $db->query("DROP TABLE $sequence_name");
|
|
|
930 |
if (MDB::isError($result)) {
|
|
|
931 |
return($db->raiseError(MDB_ERROR, NULL, NULL,
|
|
|
932 |
'Create sequence: could not drop inconsistent sequence table ('.
|
|
|
933 |
$result->getMessage().' ('.$result->getUserinfo().'))'));
|
|
|
934 |
}
|
|
|
935 |
return($db->raiseError(MDB_ERROR, NULL, NULL,
|
|
|
936 |
'Create sequence: could not create sequence table ('.
|
|
|
937 |
$res->getMessage().' ('.$res->getUserinfo().'))'));
|
|
|
938 |
}
|
|
|
939 |
|
|
|
940 |
// }}}
|
|
|
941 |
// {{{ dropSequence()
|
|
|
942 |
|
|
|
943 |
/**
|
|
|
944 |
* drop existing sequence
|
|
|
945 |
*
|
|
|
946 |
* @param object $db database object that is extended by this class
|
|
|
947 |
* @param string $seq_name name of the sequence to be dropped
|
|
|
948 |
* @return mixed MDB_OK on success, a MDB error on failure
|
|
|
949 |
* @access public
|
|
|
950 |
*/
|
|
|
951 |
function dropSequence(&$db, $seq_name)
|
|
|
952 |
{
|
|
|
953 |
$sequence_name = $db->getSequenceName($seq_name);
|
|
|
954 |
return($db->query("DROP TABLE $sequence_name"));
|
|
|
955 |
}
|
|
|
956 |
|
|
|
957 |
// }}}
|
|
|
958 |
// {{{ listSequences()
|
|
|
959 |
|
|
|
960 |
/**
|
|
|
961 |
* list all sequences in the current database
|
|
|
962 |
*
|
|
|
963 |
* @param object $db database object that is extended by this class
|
|
|
964 |
* @return mixed data array on success, a MDB error on failure
|
|
|
965 |
* @access public
|
|
|
966 |
*/
|
|
|
967 |
function listSequences(&$db)
|
|
|
968 |
{
|
|
|
969 |
$table_names = $db->queryCol('SHOW TABLES');
|
|
|
970 |
if(MDB::isError($table_names)) {
|
|
|
971 |
return($table_names);
|
|
|
972 |
}
|
|
|
973 |
for($i = 0, $j = count($table_names), $sequences = array(); $i < $j; ++$i)
|
|
|
974 |
{
|
|
|
975 |
if ($sqn = $this->_isSequenceName($db, $table_names[$i]))
|
|
|
976 |
$sequences[] = $sqn;
|
|
|
977 |
}
|
|
|
978 |
return($sequences);
|
|
|
979 |
}
|
|
|
980 |
|
|
|
981 |
// }}}
|
|
|
982 |
}
|
|
|
983 |
|
|
|
984 |
};
|
|
|
985 |
?>
|