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1067 lines
40 KiB
PHTML
1067 lines
40 KiB
PHTML
17 years ago
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<?php
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// +----------------------------------------------------------------------+
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// | PHP versions 4 and 5 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1998-2007 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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// | MDB2 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@pooteeweet.org> |
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// +----------------------------------------------------------------------+
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//
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// $Id: mysqli.php,v 1.87 2007/12/03 20:59:15 quipo Exp $
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//
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require_once 'MDB2/Driver/Manager/Common.php';
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/**
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* MDB2 MySQLi driver for the management modules
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*
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* @package MDB2
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* @category Database
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* @author Lukas Smith <smith@pooteeweet.org>
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*/
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class MDB2_Driver_Manager_mysqli extends MDB2_Driver_Manager_Common
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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 string $name name of the database that should be created
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* @param array $options array with charset, collation info
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*
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function createDatabase($name, $options = array())
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{
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$db =& $this->getDBInstance();
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if (PEAR::isError($db)) {
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return $db;
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}
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$name = $db->quoteIdentifier($name, true);
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$query = 'CREATE DATABASE ' . $name;
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if (!empty($options['charset'])) {
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$query .= ' DEFAULT CHARACTER SET ' . $options['charset'];
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}
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if (!empty($options['collation'])) {
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$query .= ' COLLATE ' . $options['collation'];
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}
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$result = $db->exec($query);
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if (PEAR::isError($result)) {
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return $result;
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}
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return MDB2_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 string $name name of the database that should be dropped
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function dropDatabase($name)
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{
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$db =& $this->getDBInstance();
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if (PEAR::isError($db)) {
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return $db;
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}
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$name = $db->quoteIdentifier($name, true);
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$query = "DROP DATABASE $name";
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$result = $db->exec($query);
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if (PEAR::isError($result)) {
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return $result;
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}
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return MDB2_OK;
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}
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// }}}
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// {{{ _getAdvancedFKOptions()
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/**
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* Return the FOREIGN KEY query section dealing with non-standard options
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* as MATCH, INITIALLY DEFERRED, ON UPDATE, ...
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*
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* @param array $definition
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* @return string
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* @access protected
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*/
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function _getAdvancedFKOptions($definition)
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{
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$query = '';
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if (!empty($definition['match'])) {
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$query .= ' MATCH '.$definition['match'];
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}
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if (!empty($definition['onupdate'])) {
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$query .= ' ON UPDATE '.$definition['onupdate'];
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}
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if (!empty($definition['ondelete'])) {
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$query .= ' ON DELETE '.$definition['ondelete'];
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}
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return $query;
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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 string $name Name of the database that should be created
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* @param array $fields Associative array that contains the definition of each field of the new table
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* The indexes of the array entries are the names of the fields of the table an
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* the array entry values are associative arrays like those that are meant to be
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* passed with the field definitions to get[Type]Declaration() functions.
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* array(
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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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* @param array $options An associative array of table options:
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* array(
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* 'comment' => 'Foo',
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* 'charset' => 'utf8',
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* 'collate' => 'utf8_unicode_ci',
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* 'type' => 'innodb',
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* );
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*
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function createTable($name, $fields, $options = array())
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{
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$db =& $this->getDBInstance();
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if (PEAR::isError($db)) {
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return $db;
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}
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$query = $this->_getCreateTableQuery($name, $fields, $options);
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if (PEAR::isError($query)) {
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return $query;
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}
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$options_strings = array();
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if (!empty($options['comment'])) {
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$options_strings['comment'] = 'COMMENT = '.$db->quote($options['comment'], 'text');
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}
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if (!empty($options['charset'])) {
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$options_strings['charset'] = 'DEFAULT CHARACTER SET '.$options['charset'];
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if (!empty($options['collate'])) {
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$options_strings['charset'].= ' COLLATE '.$options['collate'];
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}
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}
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$type = false;
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if (!empty($options['type'])) {
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$type = $options['type'];
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} elseif ($db->options['default_table_type']) {
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$type = $db->options['default_table_type'];
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}
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if ($type) {
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$options_strings[] = "ENGINE = $type";
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}
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if (!empty($options_strings)) {
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$query .= ' '.implode(' ', $options_strings);
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}
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$result = $db->exec($query);
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if (PEAR::isError($result)) {
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return $result;
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}
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return MDB2_OK;
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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 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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* add
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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 MDB2 parser.
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*
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*
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* remove
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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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* rename
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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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|
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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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*
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* change
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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 change 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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||
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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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|
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* respective properties. The properties of the fields should be the same
|
||
|
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* as defined by the MDB2 parser.
|
||
|
|
*
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||
|
|
* Example
|
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|
|
* array(
|
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|
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* 'name' => 'userlist',
|
||
|
|
* 'add' => array(
|
||
|
|
* 'quota' => array(
|
||
|
|
* 'type' => 'integer',
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||
|
|
* 'unsigned' => 1
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|
|
* )
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* ),
|
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|
|
* 'remove' => array(
|
||
|
|
* 'file_limit' => array(),
|
||
|
|
* 'time_limit' => array()
|
||
|
|
* ),
|
||
|
|
* 'change' => array(
|
||
|
|
* 'name' => array(
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|
|
* 'length' => '20',
|
||
|
|
* 'definition' => array(
|
||
|
|
* 'type' => 'text',
|
||
|
|
* 'length' => 20,
|
||
|
|
* ),
|
||
|
|
* )
|
||
|
|
* ),
|
||
|
|
* 'rename' => array(
|
||
|
|
* 'sex' => array(
|
||
|
|
* 'name' => 'gender',
|
||
|
|
* 'definition' => array(
|
||
|
|
* 'type' => 'text',
|
||
|
|
* 'length' => 1,
|
||
|
|
* 'default' => 'M',
|
||
|
|
* ),
|
||
|
|
* )
|
||
|
|
* )
|
||
|
|
* )
|
||
|
|
*
|
||
|
|
* @param boolean $check indicates whether the function should just check if the DBMS driver
|
||
|
|
* can perform the requested table alterations if the value is true or
|
||
|
|
* actually perform them otherwise.
|
||
|
|
* @access public
|
||
|
|
*
|
||
|
|
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
||
|
|
*/
|
||
|
|
function alterTable($name, $changes, $check)
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach ($changes as $change_name => $change) {
|
||
|
|
switch ($change_name) {
|
||
|
|
case 'add':
|
||
|
|
case 'remove':
|
||
|
|
case 'change':
|
||
|
|
case 'rename':
|
||
|
|
case 'name':
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
return $db->raiseError(MDB2_ERROR_CANNOT_ALTER, null, null,
|
||
|
|
'change type "'.$change_name.'" not yet supported', __FUNCTION__);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($check) {
|
||
|
|
return MDB2_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
$query = '';
|
||
|
|
if (!empty($changes['name'])) {
|
||
|
|
$change_name = $db->quoteIdentifier($changes['name'], true);
|
||
|
|
$query .= 'RENAME TO ' . $change_name;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!empty($changes['add']) && is_array($changes['add'])) {
|
||
|
|
foreach ($changes['add'] as $field_name => $field) {
|
||
|
|
if ($query) {
|
||
|
|
$query.= ', ';
|
||
|
|
}
|
||
|
|
$query.= 'ADD ' . $db->getDeclaration($field['type'], $field_name, $field);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!empty($changes['remove']) && is_array($changes['remove'])) {
|
||
|
|
foreach ($changes['remove'] as $field_name => $field) {
|
||
|
|
if ($query) {
|
||
|
|
$query.= ', ';
|
||
|
|
}
|
||
|
|
$field_name = $db->quoteIdentifier($field_name, true);
|
||
|
|
$query.= 'DROP ' . $field_name;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$rename = array();
|
||
|
|
if (!empty($changes['rename']) && is_array($changes['rename'])) {
|
||
|
|
foreach ($changes['rename'] as $field_name => $field) {
|
||
|
|
$rename[$field['name']] = $field_name;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!empty($changes['change']) && is_array($changes['change'])) {
|
||
|
|
foreach ($changes['change'] as $field_name => $field) {
|
||
|
|
if ($query) {
|
||
|
|
$query.= ', ';
|
||
|
|
}
|
||
|
|
if (isset($rename[$field_name])) {
|
||
|
|
$old_field_name = $rename[$field_name];
|
||
|
|
unset($rename[$field_name]);
|
||
|
|
} else {
|
||
|
|
$old_field_name = $field_name;
|
||
|
|
}
|
||
|
|
$old_field_name = $db->quoteIdentifier($old_field_name, true);
|
||
|
|
$query.= "CHANGE $old_field_name " . $db->getDeclaration($field['definition']['type'], $field_name, $field['definition']);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!empty($rename) && is_array($rename)) {
|
||
|
|
foreach ($rename as $rename_name => $renamed_field) {
|
||
|
|
if ($query) {
|
||
|
|
$query.= ', ';
|
||
|
|
}
|
||
|
|
$field = $changes['rename'][$renamed_field];
|
||
|
|
$renamed_field = $db->quoteIdentifier($renamed_field, true);
|
||
|
|
$query.= 'CHANGE ' . $renamed_field . ' ' . $db->getDeclaration($field['definition']['type'], $field['name'], $field['definition']);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$query) {
|
||
|
|
return MDB2_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
$name = $db->quoteIdentifier($name, true);
|
||
|
|
return $db->exec("ALTER TABLE $name $query");
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ listDatabases()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* list all databases
|
||
|
|
*
|
||
|
|
* @return mixed array of database names on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function listDatabases()
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
$result = $db->queryCol('SHOW DATABASES');
|
||
|
|
if (PEAR::isError($result)) {
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
|
||
|
|
$result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
|
||
|
|
}
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ listUsers()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* list all users
|
||
|
|
*
|
||
|
|
* @return mixed array of user names on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function listUsers()
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $db->queryCol('SELECT DISTINCT USER FROM mysql.USER');
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ listFunctions()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* list all functions in the current database
|
||
|
|
*
|
||
|
|
* @return mixed array of function names on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function listFunctions()
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
$query = "SELECT name FROM mysql.proc";
|
||
|
|
/*
|
||
|
|
SELECT ROUTINE_NAME
|
||
|
|
FROM INFORMATION_SCHEMA.ROUTINES
|
||
|
|
WHERE ROUTINE_TYPE = 'FUNCTION'
|
||
|
|
*/
|
||
|
|
$result = $db->queryCol($query);
|
||
|
|
if (PEAR::isError($result)) {
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
|
||
|
|
$result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
|
||
|
|
}
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ listTableTriggers()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* list all triggers in the database that reference a given table
|
||
|
|
*
|
||
|
|
* @param string table for which all referenced triggers should be found
|
||
|
|
* @return mixed array of trigger names on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function listTableTriggers($table = null)
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
$query = 'SHOW TRIGGERS';
|
||
|
|
if (!is_null($table)) {
|
||
|
|
$table = $db->quote($table, 'text');
|
||
|
|
$query .= " LIKE $table";
|
||
|
|
}
|
||
|
|
$result = $db->queryCol($query);
|
||
|
|
if (PEAR::isError($result)) {
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
|
||
|
|
$result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
|
||
|
|
}
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ listTables()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* list all tables in the current database
|
||
|
|
*
|
||
|
|
* @param string database, the current is default
|
||
|
|
* @return mixed array of table names on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function listTables($database = null)
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
$query = "SHOW /*!50002 FULL*/ TABLES";
|
||
|
|
if (!is_null($database)) {
|
||
|
|
$query .= " FROM $database";
|
||
|
|
}
|
||
|
|
$query.= "/*!50002 WHERE Table_type = 'BASE TABLE'*/";
|
||
|
|
|
||
|
|
$table_names = $db->queryAll($query, null, MDB2_FETCHMODE_ORDERED);
|
||
|
|
if (PEAR::isError($table_names)) {
|
||
|
|
return $table_names;
|
||
|
|
}
|
||
|
|
|
||
|
|
$result = array();
|
||
|
|
foreach ($table_names as $table) {
|
||
|
|
if (!$this->_fixSequenceName($table[0], true)) {
|
||
|
|
$result[] = $table[0];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
|
||
|
|
$result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
|
||
|
|
}
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ listViews()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* list all views in the current database
|
||
|
|
*
|
||
|
|
* @param string database, the current is default
|
||
|
|
* @return mixed array of view names on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function listViews($database = null)
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
$query = 'SHOW FULL TABLES';
|
||
|
|
if (!is_null($database)) {
|
||
|
|
$query.= " FROM $database";
|
||
|
|
}
|
||
|
|
$query.= " WHERE Table_type = 'VIEW'";
|
||
|
|
|
||
|
|
$result = $db->queryCol($query);
|
||
|
|
if (PEAR::isError($result)) {
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
|
||
|
|
$result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
|
||
|
|
}
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ listTableFields()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* list all fields in a table in the current database
|
||
|
|
*
|
||
|
|
* @param string $table name of table that should be used in method
|
||
|
|
* @return mixed array of field names on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function listTableFields($table)
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
$table = $db->quoteIdentifier($table, true);
|
||
|
|
$result = $db->queryCol("SHOW COLUMNS FROM $table");
|
||
|
|
if (PEAR::isError($result)) {
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
|
||
|
|
$result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
|
||
|
|
}
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ createIndex()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the stucture of a field into an array
|
||
|
|
*
|
||
|
|
* @author Leoncx
|
||
|
|
* @param string $table name of the table on which the index is to be created
|
||
|
|
* @param string $name name of the index to be created
|
||
|
|
* @param array $definition associative array that defines properties of the index to be created.
|
||
|
|
* Currently, only one property named FIELDS is supported. This property
|
||
|
|
* is also an associative with the names of the index fields as array
|
||
|
|
* indexes. Each entry of this array is set to another type of associative
|
||
|
|
* array that specifies properties of the index that are specific to
|
||
|
|
* each field.
|
||
|
|
*
|
||
|
|
* Currently, only the sorting property is supported. It should be used
|
||
|
|
* to define the sorting direction of the index. It may be set to either
|
||
|
|
* ascending or descending.
|
||
|
|
*
|
||
|
|
* Not all DBMS support index sorting direction configuration. The DBMS
|
||
|
|
* drivers of those that do not support it ignore this property. Use the
|
||
|
|
* function supports() to determine whether the DBMS driver can manage indexes.
|
||
|
|
*
|
||
|
|
* Example
|
||
|
|
* array(
|
||
|
|
* 'fields' => array(
|
||
|
|
* 'user_name' => array(
|
||
|
|
* 'sorting' => 'ascending'
|
||
|
|
* 'length' => 10
|
||
|
|
* ),
|
||
|
|
* 'last_login' => array()
|
||
|
|
* )
|
||
|
|
* )
|
||
|
|
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function createIndex($table, $name, $definition)
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
$table = $db->quoteIdentifier($table, true);
|
||
|
|
$name = $db->quoteIdentifier($db->getIndexName($name), true);
|
||
|
|
$query = "CREATE INDEX $name ON $table";
|
||
|
|
$fields = array();
|
||
|
|
foreach ($definition['fields'] as $field => $fieldinfo) {
|
||
|
|
if (!empty($fieldinfo['length'])) {
|
||
|
|
$fields[] = $db->quoteIdentifier($field, true) . '(' . $fieldinfo['length'] . ')';
|
||
|
|
} else {
|
||
|
|
$fields[] = $db->quoteIdentifier($field, true);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$query .= ' ('. implode(', ', $fields) . ')';
|
||
|
|
return $db->exec($query);
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ dropIndex()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* drop existing index
|
||
|
|
*
|
||
|
|
* @param string $table name of table that should be used in method
|
||
|
|
* @param string $name name of the index to be dropped
|
||
|
|
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function dropIndex($table, $name)
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
$table = $db->quoteIdentifier($table, true);
|
||
|
|
$name = $db->quoteIdentifier($db->getIndexName($name), true);
|
||
|
|
return $db->exec("DROP INDEX $name ON $table");
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ listTableIndexes()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* list all indexes in a table
|
||
|
|
*
|
||
|
|
* @param string $table name of table that should be used in method
|
||
|
|
* @return mixed array of index names on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function listTableIndexes($table)
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
$key_name = 'Key_name';
|
||
|
|
$non_unique = 'Non_unique';
|
||
|
|
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
|
||
|
|
if ($db->options['field_case'] == CASE_LOWER) {
|
||
|
|
$key_name = strtolower($key_name);
|
||
|
|
$non_unique = strtolower($non_unique);
|
||
|
|
} else {
|
||
|
|
$key_name = strtoupper($key_name);
|
||
|
|
$non_unique = strtoupper($non_unique);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$table = $db->quoteIdentifier($table, true);
|
||
|
|
$query = "SHOW INDEX FROM $table";
|
||
|
|
$indexes = $db->queryAll($query, null, MDB2_FETCHMODE_ASSOC);
|
||
|
|
if (PEAR::isError($indexes)) {
|
||
|
|
return $indexes;
|
||
|
|
}
|
||
|
|
|
||
|
|
$result = array();
|
||
|
|
foreach ($indexes as $index_data) {
|
||
|
|
if ($index_data[$non_unique] && ($index = $this->_fixIndexName($index_data[$key_name]))) {
|
||
|
|
$result[$index] = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
|
||
|
|
$result = array_change_key_case($result, $db->options['field_case']);
|
||
|
|
}
|
||
|
|
return array_keys($result);
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ createConstraint()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* create a constraint on a table
|
||
|
|
*
|
||
|
|
* @param string $table name of the table on which the constraint is to be created
|
||
|
|
* @param string $name name of the constraint to be created
|
||
|
|
* @param array $definition associative array that defines properties of the constraint to be created.
|
||
|
|
* Currently, only one property named FIELDS is supported. This property
|
||
|
|
* is also an associative with the names of the constraint fields as array
|
||
|
|
* constraints. Each entry of this array is set to another type of associative
|
||
|
|
* array that specifies properties of the constraint that are specific to
|
||
|
|
* each field.
|
||
|
|
*
|
||
|
|
* Example
|
||
|
|
* array(
|
||
|
|
* 'fields' => array(
|
||
|
|
* 'user_name' => array(),
|
||
|
|
* 'last_login' => array()
|
||
|
|
* )
|
||
|
|
* )
|
||
|
|
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function createConstraint($table, $name, $definition)
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
$type = '';
|
||
|
|
$name = $db->quoteIdentifier($db->getIndexName($name), true);
|
||
|
|
if (!empty($definition['primary'])) {
|
||
|
|
$type = 'PRIMARY';
|
||
|
|
$name = 'KEY';
|
||
|
|
} elseif (!empty($definition['unique'])) {
|
||
|
|
$type = 'UNIQUE';
|
||
|
|
} elseif (!empty($definition['foreign'])) {
|
||
|
|
$type = 'CONSTRAINT';
|
||
|
|
}
|
||
|
|
if (empty($type)) {
|
||
|
|
return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
||
|
|
'invalid definition, could not create constraint', __FUNCTION__);
|
||
|
|
}
|
||
|
|
|
||
|
|
$table = $db->quoteIdentifier($table, true);
|
||
|
|
$query = "ALTER TABLE $table ADD $type $name";
|
||
|
|
if (!empty($definition['foreign'])) {
|
||
|
|
$query .= ' FOREIGN KEY ';
|
||
|
|
}
|
||
|
|
$fields = array();
|
||
|
|
foreach (array_keys($definition['fields']) as $field) {
|
||
|
|
$fields[] = $db->quoteIdentifier($field, true);
|
||
|
|
}
|
||
|
|
$query .= ' ('. implode(', ', $fields) . ')';
|
||
|
|
if (!empty($definition['foreign'])) {
|
||
|
|
$query.= ' REFERENCES ' . $db->quoteIdentifier($definition['references']['table'], true);
|
||
|
|
$referenced_fields = array();
|
||
|
|
foreach (array_keys($definition['references']['fields']) as $field) {
|
||
|
|
$referenced_fields[] = $db->quoteIdentifier($field, true);
|
||
|
|
}
|
||
|
|
$query .= ' ('. implode(', ', $referenced_fields) . ')';
|
||
|
|
$query .= $this->_getAdvancedFKOptions($definition);
|
||
|
|
}
|
||
|
|
return $db->exec($query);
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ dropConstraint()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* drop existing constraint
|
||
|
|
*
|
||
|
|
* @param string $table name of table that should be used in method
|
||
|
|
* @param string $name name of the constraint to be dropped
|
||
|
|
* @param string $primary hint if the constraint is primary
|
||
|
|
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function dropConstraint($table, $name, $primary = false)
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
$table = $db->quoteIdentifier($table, true);
|
||
|
|
if ($primary || strtolower($name) == 'primary') {
|
||
|
|
$query = "ALTER TABLE $table DROP PRIMARY KEY";
|
||
|
|
} else {
|
||
|
|
$name = $db->quoteIdentifier($db->getIndexName($name), true);
|
||
|
|
$query = "ALTER TABLE $table DROP INDEX $name";
|
||
|
|
}
|
||
|
|
return $db->exec($query);
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ listTableConstraints()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* list all constraints in a table
|
||
|
|
*
|
||
|
|
* @param string $table name of table that should be used in method
|
||
|
|
* @return mixed array of constraint names on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function listTableConstraints($table)
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
$key_name = 'Key_name';
|
||
|
|
$non_unique = 'Non_unique';
|
||
|
|
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
|
||
|
|
if ($db->options['field_case'] == CASE_LOWER) {
|
||
|
|
$key_name = strtolower($key_name);
|
||
|
|
$non_unique = strtolower($non_unique);
|
||
|
|
} else {
|
||
|
|
$key_name = strtoupper($key_name);
|
||
|
|
$non_unique = strtoupper($non_unique);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$query = 'SHOW INDEX FROM ' . $db->quoteIdentifier($table, true);
|
||
|
|
$indexes = $db->queryAll($query, null, MDB2_FETCHMODE_ASSOC);
|
||
|
|
if (PEAR::isError($indexes)) {
|
||
|
|
return $indexes;
|
||
|
|
}
|
||
|
|
|
||
|
|
$result = array();
|
||
|
|
foreach ($indexes as $index_data) {
|
||
|
|
if (!$index_data[$non_unique]) {
|
||
|
|
if ($index_data[$key_name] !== 'PRIMARY') {
|
||
|
|
$index = $this->_fixIndexName($index_data[$key_name]);
|
||
|
|
} else {
|
||
|
|
$index = 'PRIMARY';
|
||
|
|
}
|
||
|
|
if (!empty($index)) {
|
||
|
|
$result[$index] = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//list FOREIGN KEY constraints...
|
||
|
|
$query = 'SHOW CREATE TABLE '. $db->escape($table);
|
||
|
|
$definition = $db->queryOne($query, 'text', 1);
|
||
|
|
if (!PEAR::isError($definition) && !empty($definition)) {
|
||
|
|
$pattern = '/\bCONSTRAINT\s+([^\s]+)\s+FOREIGN KEY\b/i';
|
||
|
|
if (preg_match_all($pattern, str_replace('`', '', $definition), $matches) > 1) {
|
||
|
|
foreach ($matches[1] as $constraint) {
|
||
|
|
$result[$constraint] = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
|
||
|
|
$result = array_change_key_case($result, $db->options['field_case']);
|
||
|
|
}
|
||
|
|
return array_keys($result);
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ createSequence()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* create sequence
|
||
|
|
*
|
||
|
|
* @param string $seq_name name of the sequence to be created
|
||
|
|
* @param string $start start value of the sequence; default is 1
|
||
|
|
* @param array $options An associative array of table options:
|
||
|
|
* array(
|
||
|
|
* 'comment' => 'Foo',
|
||
|
|
* 'charset' => 'utf8',
|
||
|
|
* 'collate' => 'utf8_unicode_ci',
|
||
|
|
* 'type' => 'innodb',
|
||
|
|
* );
|
||
|
|
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function createSequence($seq_name, $start = 1, $options = array())
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
$sequence_name = $db->quoteIdentifier($db->getSequenceName($seq_name), true);
|
||
|
|
$seqcol_name = $db->quoteIdentifier($db->options['seqcol_name'], true);
|
||
|
|
|
||
|
|
$options_strings = array();
|
||
|
|
|
||
|
|
if (!empty($options['comment'])) {
|
||
|
|
$options_strings['comment'] = 'COMMENT = '.$db->quote($options['comment'], 'text');
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!empty($options['charset'])) {
|
||
|
|
$options_strings['charset'] = 'DEFAULT CHARACTER SET '.$options['charset'];
|
||
|
|
if (!empty($options['collate'])) {
|
||
|
|
$options_strings['charset'].= ' COLLATE '.$options['collate'];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$type = false;
|
||
|
|
if (!empty($options['type'])) {
|
||
|
|
$type = $options['type'];
|
||
|
|
} elseif ($db->options['default_table_type']) {
|
||
|
|
$type = $db->options['default_table_type'];
|
||
|
|
}
|
||
|
|
if ($type) {
|
||
|
|
$options_strings[] = "ENGINE = $type";
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!empty($options_strings)) {
|
||
|
|
$query.= ' '.implode(' ', $options_strings);
|
||
|
|
}
|
||
|
|
|
||
|
|
$query = "CREATE TABLE $sequence_name ($seqcol_name INT NOT NULL AUTO_INCREMENT, PRIMARY KEY ($seqcol_name))";
|
||
|
|
if (!empty($options_strings)) {
|
||
|
|
$query .= ' '.implode(' ', $options_strings);
|
||
|
|
}
|
||
|
|
$res = $db->exec($query);
|
||
|
|
if (PEAR::isError($res)) {
|
||
|
|
return $res;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($start == 1) {
|
||
|
|
return MDB2_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
$query = "INSERT INTO $sequence_name ($seqcol_name) VALUES (".($start-1).')';
|
||
|
|
$res = $db->exec($query);
|
||
|
|
if (!PEAR::isError($res)) {
|
||
|
|
return MDB2_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Handle error
|
||
|
|
$result = $db->exec("DROP TABLE $sequence_name");
|
||
|
|
if (PEAR::isError($result)) {
|
||
|
|
return $db->raiseError($result, null, null,
|
||
|
|
'could not drop inconsistent sequence table', __FUNCTION__);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $db->raiseError($res, null, null,
|
||
|
|
'could not create sequence table', __FUNCTION__);
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ dropSequence()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* drop existing sequence
|
||
|
|
*
|
||
|
|
* @param string $seq_name name of the sequence to be dropped
|
||
|
|
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function dropSequence($seq_name)
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
$sequence_name = $db->quoteIdentifier($db->getSequenceName($seq_name), true);
|
||
|
|
return $db->exec("DROP TABLE $sequence_name");
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ listSequences()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* list all sequences in the current database
|
||
|
|
*
|
||
|
|
* @param string database, the current is default
|
||
|
|
* @return mixed array of sequence names on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function listSequences($database = null)
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
$query = "SHOW TABLES";
|
||
|
|
if (!is_null($database)) {
|
||
|
|
$query .= " FROM $database";
|
||
|
|
}
|
||
|
|
$table_names = $db->queryCol($query);
|
||
|
|
if (PEAR::isError($table_names)) {
|
||
|
|
return $table_names;
|
||
|
|
}
|
||
|
|
|
||
|
|
$result = array();
|
||
|
|
foreach ($table_names as $table_name) {
|
||
|
|
if ($sqn = $this->_fixSequenceName($table_name, true)) {
|
||
|
|
$result[] = $sqn;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
|
||
|
|
$result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
|
||
|
|
}
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
}
|
||
|
|
?>
|