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815 lines
29 KiB
PHTML
815 lines
29 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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// | Authors: Frank M. Kromann <frank@kromann.info> |
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// | David Coallier <davidc@php.net> |
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// | Lorenzo Alberton <l.alberton@quipo.it> |
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// +----------------------------------------------------------------------+
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//
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// $Id: mssql.php,v 1.93 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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// {{{ class MDB2_Driver_Manager_mssql
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/**
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* MDB2 MSSQL 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 Frank M. Kromann <frank@kromann.info>
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* @author David Coallier <davidc@php.net>
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* @author Lorenzo Alberton <l.alberton@quipo.it>
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*/
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class MDB2_Driver_Manager_mssql extends MDB2_Driver_Manager_Common
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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 $options array with collation info
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*
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function createDatabase($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 $name";
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if ($db->options['database_device']) {
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$query.= ' ON '.$db->options['database_device'];
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$query.= $db->options['database_size'] ? '=' .
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$db->options['database_size'] : '';
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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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return $db->standaloneQuery($query, null, true);
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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 $name name of the database that should be dropped
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*
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function dropDatabase($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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return $db->standaloneQuery("DROP DATABASE $name", null, true);
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}
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// }}}
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// {{{ _getTemporaryTableQuery()
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/**
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* Override the parent method.
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*
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* @return string The string required to be placed between "CREATE" and "TABLE"
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* to generate a temporary table, if possible.
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*/
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function _getTemporaryTableQuery()
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{
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return '';
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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 $definition
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*
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* @return string
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* @access protected
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*/
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function _getAdvancedFKOptions($definition)
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{
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$query = '';
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if (!empty($definition['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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*
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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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* 'description' => 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 $options An associative array of table options:
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* array(
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* 'comment' => 'Foo',
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* 'temporary' => true|false,
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* );
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*
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function createTable($name, $fields, $options = array())
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{
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if (!empty($options['temporary'])) {
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$name = '#'.$name;
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}
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return parent::createTable($name, $fields, $options);
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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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* 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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* 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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* 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 MDB2 parser.
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*
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* Example
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* array(
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* 'name' => 'userlist',
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* 'add' => array(
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* 'quota' => array(
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* 'type' => 'integer',
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* 'unsigned' => 1
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* )
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* ),
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* 'remove' => array(
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* 'file_limit' => array(),
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* 'time_limit' => array()
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* ),
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* 'change' => array(
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* 'name' => array(
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* 'length' => '20',
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|
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* 'definition' => array(
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|
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* 'type' => 'text',
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|
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* 'length' => 20,
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* ),
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* )
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* ),
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* 'rename' => array(
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* 'sex' => array(
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|
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* 'name' => 'gender',
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|
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* 'definition' => array(
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|
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* 'type' => 'text',
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|
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* 'length' => 1,
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|
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* 'default' => 'M',
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* ),
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* )
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* )
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* )
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|
|
*
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|
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* @param boolean $check indicates whether the function should just check if the DBMS driver
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|
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* can perform the requested table alterations if the value is true or
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* actually perform them otherwise.
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|
|
*
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* @return mixed MDB2_OK on success, a MDB2 error on failure
|
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|
|
* @access public
|
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|
*/
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function alterTable($name, $changes, $check)
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{
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$db =& $this->getDBInstance();
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|
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if (PEAR::isError($db)) {
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return $db;
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|
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}
|
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|
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|
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|
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foreach ($changes as $change_name => $change) {
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switch ($change_name) {
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case 'add':
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break;
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|
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case 'remove':
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break;
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case 'name':
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case 'rename':
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case 'change':
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|
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default:
|
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return $db->raiseError(MDB2_ERROR_CANNOT_ALTER, null, null,
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|
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'change type "'.$change_name.'" not yet supported', __FUNCTION__);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($check) {
|
||
|
|
return MDB2_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
$query = '';
|
||
|
|
if (!empty($changes['add']) && is_array($changes['add'])) {
|
||
|
|
foreach ($changes['add'] as $field_name => $field) {
|
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|
|
if ($query) {
|
||
|
|
$query.= ', ';
|
||
|
|
} else {
|
||
|
|
$query.= 'ADD COLUMN ';
|
||
|
|
}
|
||
|
|
$query.= $db->getDeclaration($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 COLUMN ' . $field_name;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$query) {
|
||
|
|
return MDB2_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
$name = $db->quoteIdentifier($name, true);
|
||
|
|
return $db->exec("ALTER TABLE $name $query");
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ listTables()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* list all tables in the current database
|
||
|
|
*
|
||
|
|
* @return mixed array of table names on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function listTables()
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
$query = 'EXEC sp_tables @table_type = "\'TABLE\'"';
|
||
|
|
$table_names = $db->queryCol($query, null, 2);
|
||
|
|
if (PEAR::isError($table_names)) {
|
||
|
|
return $table_names;
|
||
|
|
}
|
||
|
|
$result = array();
|
||
|
|
foreach ($table_names as $table_name) {
|
||
|
|
if (!$this->_fixSequenceName($table_name, true)) {
|
||
|
|
$result[] = $table_name;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ($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);
|
||
|
|
$columns = $db->queryCol("SELECT c.name
|
||
|
|
FROM syscolumns c
|
||
|
|
LEFT JOIN sysobjects o ON c.id = o.id
|
||
|
|
WHERE o.name = '$table'");
|
||
|
|
if (PEAR::isError($columns)) {
|
||
|
|
return $columns;
|
||
|
|
}
|
||
|
|
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
|
||
|
|
$columns = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $columns);
|
||
|
|
}
|
||
|
|
return $columns;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ 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 = 'INDEX_NAME';
|
||
|
|
$pk_name = 'PK_NAME';
|
||
|
|
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
|
||
|
|
if ($db->options['field_case'] == CASE_LOWER) {
|
||
|
|
$key_name = strtolower($key_name);
|
||
|
|
$pk_name = strtolower($pk_name);
|
||
|
|
} else {
|
||
|
|
$key_name = strtoupper($key_name);
|
||
|
|
$pk_name = strtoupper($pk_name);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$table = $db->quote($table, 'text');
|
||
|
|
$query = "EXEC sp_statistics @table_name=$table";
|
||
|
|
$indexes = $db->queryCol($query, 'text', $key_name);
|
||
|
|
if (PEAR::isError($indexes)) {
|
||
|
|
return $indexes;
|
||
|
|
}
|
||
|
|
$query = "EXEC sp_pkeys @table_name=$table";
|
||
|
|
$pk_all = $db->queryCol($query, 'text', $pk_name);
|
||
|
|
$result = array();
|
||
|
|
foreach ($indexes as $index) {
|
||
|
|
if (!in_array($index, $pk_all) && ($index = $this->_fixIndexName($index))) {
|
||
|
|
$result[$index] = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
|
||
|
|
$result = array_change_key_case($result, $db->options['field_case']);
|
||
|
|
}
|
||
|
|
return array_keys($result);
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ 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 = $db->queryCol('SELECT name FROM sys.databases');
|
||
|
|
if (PEAR::isError($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;
|
||
|
|
}
|
||
|
|
|
||
|
|
$result = $db->queryCol('SELECT DISTINCT loginame FROM master..sysprocesses');
|
||
|
|
if (PEAR::isError($result) || empty($result)) {
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
foreach (array_keys($result) as $k) {
|
||
|
|
$result[$k] = trim($result[$k]);
|
||
|
|
}
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ 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 sysobjects
|
||
|
|
WHERE objectproperty(id, N'IsMSShipped') = 0
|
||
|
|
AND (objectproperty(id, N'IsTableFunction') = 1
|
||
|
|
OR objectproperty(id, N'IsScalarFunction') = 1)";
|
||
|
|
/*
|
||
|
|
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 $result;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ listTableTriggers()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* list all triggers in the database that reference a given table
|
||
|
|
*
|
||
|
|
* @param string table for which all referenced triggers should be found
|
||
|
|
*
|
||
|
|
* @return mixed array of trigger names on success, otherwise, false which
|
||
|
|
* could be a db error if the db is not instantiated or could
|
||
|
|
* be the results of the error that occured during the
|
||
|
|
* querying of the sysobject module.
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function listTableTriggers($table = null)
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
$table = $db->quote($table, 'text');
|
||
|
|
$query = "SELECT o.name
|
||
|
|
FROM sysobjects o
|
||
|
|
WHERE xtype = 'TR'
|
||
|
|
AND OBJECTPROPERTY(o.id, 'IsMSShipped') = 0";
|
||
|
|
if (!is_null($table)) {
|
||
|
|
$query .= " AND object_name(parent_obj) = $table";
|
||
|
|
}
|
||
|
|
|
||
|
|
$result = $db->queryCol($query);
|
||
|
|
if (PEAR::isError($result)) {
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE &&
|
||
|
|
$db->options['field_case'] == CASE_LOWER)
|
||
|
|
{
|
||
|
|
$result = array_map(($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()
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
$query = "SELECT name
|
||
|
|
FROM sysobjects
|
||
|
|
WHERE xtype = 'V'";
|
||
|
|
/*
|
||
|
|
SELECT *
|
||
|
|
FROM sysobjects
|
||
|
|
WHERE objectproperty(id, N'IsMSShipped') = 0
|
||
|
|
AND objectproperty(id, N'IsView') = 1
|
||
|
|
*/
|
||
|
|
|
||
|
|
$result = $db->queryCol($query);
|
||
|
|
if (PEAR::isError($result)) {
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE &&
|
||
|
|
$db->options['field_case'] == CASE_LOWER)
|
||
|
|
{
|
||
|
|
$result = array_map(($db->options['field_case'] == CASE_LOWER ?
|
||
|
|
'strtolower' : 'strtoupper'), $result);
|
||
|
|
}
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ 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 $table.$name");
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ 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;
|
||
|
|
}
|
||
|
|
$table = $db->quoteIdentifier($table, true);
|
||
|
|
|
||
|
|
$query = "SELECT c.constraint_name
|
||
|
|
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS c
|
||
|
|
WHERE c.constraint_catalog = DB_NAME()
|
||
|
|
AND c.table_name = '$table'";
|
||
|
|
$constraints = $db->queryCol($query);
|
||
|
|
if (PEAR::isError($constraints)) {
|
||
|
|
return $constraints;
|
||
|
|
}
|
||
|
|
|
||
|
|
$result = array();
|
||
|
|
foreach ($constraints as $constraint) {
|
||
|
|
$constraint = $this->_fixIndexName($constraint);
|
||
|
|
if (!empty($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 $start start value of the sequence; default is 1
|
||
|
|
*
|
||
|
|
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function createSequence($seq_name, $start = 1)
|
||
|
|
{
|
||
|
|
$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);
|
||
|
|
$query = "CREATE TABLE $sequence_name ($seqcol_name " .
|
||
|
|
"INT PRIMARY KEY CLUSTERED IDENTITY($start,1) NOT NULL)";
|
||
|
|
|
||
|
|
$res = $db->exec($query);
|
||
|
|
if (PEAR::isError($res)) {
|
||
|
|
return $res;
|
||
|
|
}
|
||
|
|
|
||
|
|
$query = "SET IDENTITY_INSERT $sequence_name ON ".
|
||
|
|
"INSERT INTO $sequence_name ($seqcol_name) VALUES ($start)";
|
||
|
|
$res = $db->exec($query);
|
||
|
|
|
||
|
|
if (!PEAR::isError($res)) {
|
||
|
|
return MDB2_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
$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()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This function drops an 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
|
||
|
|
*
|
||
|
|
* @return mixed array of sequence names on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function listSequences()
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
$query = "SELECT name FROM sysobjects WHERE xtype = 'U'";
|
||
|
|
$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;
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
?>
|