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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: Frank M. Kromann <frank@kromann.info |
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// +----------------------------------------------------------------------+
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//
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// $Id: mssql.php,v 1.4.4.8 2004/04/10 08:02:31 lsmith Exp $
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//
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if(!defined('MDB_MANAGER_MSSQL_INCLUDED'))
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{
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define('MDB_MANAGER_MSSQL_INCLUDED',1);
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require_once('MDB/Modules/Manager/Common.php');
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/**
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* MDB MSSQL 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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* @author Frank M. Kromann <frank@kromann.info
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*/
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class MDB_Manager_mssql extends MDB_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 object $dbs 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, $name)
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{
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$DatabaseDevice = isset($db->options["DatabaseDevice"]) ? $db->options["DatabaseDevice"] : "DEFAULT";
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$DatabaseSize = isset($db->options["DatabaseSize"]) ? ", SIZE=".$db->options["DatabaseSize"] : "";
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return($db->standaloneQuery("CREATE DATABASE $name ON ".$DatabaseDevice.$DatabaseSize));
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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 $dbs 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, $name)
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{
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return($db->standaloneQuery("DROP DATABASE $name"));
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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 $dbs 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 $check indicates whether the function should just check if the DBMS driver
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* can perform the requested table alterations if the value is true or
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* actually perform them otherwise.
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* @access public
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*
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* @return mixed MDB_OK on success, a MDB error on failure
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*/
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function alterTable(&$db, $name, $changes, $check)
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{
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if ($check) {
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for ($change = 0, reset($changes);
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$change < count($changes);
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next($changes), $change++
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) {
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switch (key($changes)) {
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case "AddedFields":
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break;
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case "RemovedFields":
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case "name":
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case "RenamedFields":
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case "ChangedFields":
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default:
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return($db->raiseError(MDB_ERROR_CANNOT_ALTER, NULL, NULL,
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'Alter table: change type "'.key($changes).'" not yet supported'));
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}
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}
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return(MDB_OK);
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} else {
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if (isset($changes[$change = 'RemovedFields'])
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|| isset($changes[$change = 'name'])
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|| isset($changes[$change = 'RenamedFields'])
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|| isset($changes[$change = 'ChangedFields'])
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) {
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return($db->raiseError(MDB_ERROR_CANNOT_ALTER, NULL, NULL,
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'Alter table: change type "'.$change.'" is not supported by the server"'));
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}
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$query='';
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if (isset($changes['AddedFields'])) {
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if(strcmp($query, '')) {
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$query.= ', ';
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}
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$query.= 'ADD ';
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$fields = $changes['AddedFields'];
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for ($field = 0, reset($fields);
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$field < count($fields);
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next($fields), $field++)
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{
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if (strcmp($query, '')) {
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$query.= ', ';
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}
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$query.= $fields[key($fields)]['Declaration'];
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}
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}
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return(strcmp($query, '') ? $db->query("ALTER TABLE $name $query") : MDB_OK);
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}
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}
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// }}}
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// {{{ listTables()
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/**
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* list all tables in the current database
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*
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* @param object $db database object that is extended by this class
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* @return mixed data array on success, a MDB error on failure
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* @access public
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**/
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function listTables(&$db)
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{
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$query = 'EXECUTE sp_tables @table_type = "\'TABLE\'"';
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$table_names = $db->queryCol($query, null, 2);
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if (MDB::isError($table_names)) {
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return($table_names);
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}
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$tables = array();
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for ($i = 0, $j = count($table_names); $i <$j; ++$i) {
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if (!$this->_isSequenceName($db, $table_names[$i])) {
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$tables[] = $table_names[$i];
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}
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}
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return($tables);
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}
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// }}}
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// {{{ listTableFields()
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/**
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* list all fields in a tables in the current 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 $table name of table that should be used in method
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* @return mixed data array on success, a MDB error on failure
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* @access public
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*/
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function listTableFields(&$db, $table)
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{
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$result = $db->query("SELECT * FROM $table");
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if( MDB::isError($result)) {
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return($result);
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}
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$columns = $db->getColumnNames($result);
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if (MDB::isError($columns)) {
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$db->freeResult($columns);
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return $columns;
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}
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return(array_flip($columns));
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}
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// }}}
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// {{{ getTableFieldDefinition()
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/**
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* get the stucture of a field into an array; this method is still alpha quality!
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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 name of table that should be used in method
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* @param string $field_name name of field that should be used in method
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* @return mixed data array on success, a MDB error on failure
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* @access public
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*/
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function getTableFieldDefinition(&$db, $table, $field_name)
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{
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$columns = $db->queryRow("EXEC sp_columns @table_name='$table',
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@column_name='$field_name'", NULL, MDB_FETCHMODE_ASSOC );
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if (MDB::isError($columns)) {
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return($columns);
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}
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if ($db->options['optimize'] != 'portability') {
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array_change_key_case($columns);
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}
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if (!isset($columns[$column = 'column_name'])
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|| !isset($columns[$column = 'type_name'])
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) {
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return($db->raiseError(MDB_ERROR_MANAGER, NULL, NULL,
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'Get table field definition: no result, please check table '.
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$table.' and field '.$field_name.' are correct'));
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}
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$field_column = $columns['column_name'];
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$type_column = $columns['type_name'];
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$db_type = strtolower($type_column);
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if (strpos($type_column, ' ') !== FALSE) {
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$db_type = strtok($db_type, ' ');
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}
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$length = $columns['precision'];
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$decimal = $columns['scale'];
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$type = array();
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switch ($db_type) {
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case 'bigint':
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case 'int':
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case 'smallint':
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case 'tinyint':
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$type[0] = 'integer';
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if ($length == '1') {
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$type[1] = 'boolean';
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}
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break;
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case 'bit':
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$type[0] = 'integer';
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$type[1] = 'boolean';
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break;
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case 'decimal':
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case 'numeric':
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$type[0] = 'decimal';
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break;
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|
|
354 |
case 'money':
|
|
|
355 |
case 'smallmoney':
|
|
|
356 |
$type[0] = 'decimal';
|
|
|
357 |
$type[1] = 'float';
|
|
|
358 |
break;
|
|
|
359 |
case 'float':
|
|
|
360 |
case 'real':
|
|
|
361 |
$type[0] = 'float';
|
|
|
362 |
break;
|
|
|
363 |
case 'datetime':
|
|
|
364 |
case 'smalldatetime':
|
|
|
365 |
$type[0] = 'timestamp';
|
|
|
366 |
break;
|
|
|
367 |
case 'char':
|
|
|
368 |
case 'varchar':
|
|
|
369 |
case 'nchar':
|
|
|
370 |
case 'nvarchar':
|
|
|
371 |
$type[0] = 'text';
|
|
|
372 |
if ($length == '1') {
|
|
|
373 |
$type[1] = 'boolean';
|
|
|
374 |
}
|
|
|
375 |
break;
|
|
|
376 |
case 'text':
|
|
|
377 |
case 'ntext':
|
|
|
378 |
$type[0] = 'clob';
|
|
|
379 |
$type[1] = 'text';
|
|
|
380 |
break;
|
|
|
381 |
case 'binary':
|
|
|
382 |
case 'varbinary':
|
|
|
383 |
case 'image':
|
|
|
384 |
$type[0] = 'blob';
|
|
|
385 |
break;
|
|
|
386 |
case 'timestamp':
|
|
|
387 |
$type[0] = 'blob';
|
|
|
388 |
break;
|
|
|
389 |
default:
|
|
|
390 |
return($db->raiseError(MDB_ERROR_MANAGER, NULL, NULL,
|
|
|
391 |
'List table fields: unknown database attribute type'));
|
|
|
392 |
}
|
|
|
393 |
unset($notnull);
|
|
|
394 |
if ($columns['nullable'] == 0) {
|
|
|
395 |
$notnull = 1;
|
|
|
396 |
}
|
|
|
397 |
unset($default);
|
|
|
398 |
if (isset($columns['column_def']) && ($columns['column_def'] != NULL)) {
|
|
|
399 |
if (($type[0] = 'integer') OR ($type[0] = 'boolean')) {
|
|
|
400 |
$columns['column_def'] = str_replace( '(', '', $columns['column_def'] );
|
|
|
401 |
$columns['column_def'] = str_replace( ')', '', $columns['column_def'] );
|
|
|
402 |
}
|
|
|
403 |
$default = $columns['column_def'];
|
|
|
404 |
}
|
|
|
405 |
$definition = array();
|
|
|
406 |
for ($field_choices = array(), $datatype = 0; $datatype < count($type); $datatype++) {
|
|
|
407 |
$field_choices[$datatype] = array('type' => $type[$datatype]);
|
|
|
408 |
if (isset($notnull)) {
|
|
|
409 |
$field_choices[$datatype]['notnull'] = 1;
|
|
|
410 |
}
|
|
|
411 |
if (isset($default)) {
|
|
|
412 |
$field_choices[$datatype]['default'] = $default;
|
|
|
413 |
}
|
|
|
414 |
if ($type[$datatype] != 'boolean'
|
|
|
415 |
&& $type[$datatype] != 'time'
|
|
|
416 |
&& $type[$datatype] != 'date'
|
|
|
417 |
&& $type[$datatype] != 'timestamp'
|
|
|
418 |
) {
|
|
|
419 |
if (strlen($length)) {
|
|
|
420 |
$field_choices[$datatype]['length'] = $length;
|
|
|
421 |
}
|
|
|
422 |
}
|
|
|
423 |
}
|
|
|
424 |
$definition[0] = $field_choices;
|
|
|
425 |
if (strpos($type_column, 'identity') !== FALSE) {
|
|
|
426 |
$implicit_sequence = array();
|
|
|
427 |
$implicit_sequence['on'] = array();
|
|
|
428 |
$implicit_sequence['on']['table'] = $table;
|
|
|
429 |
$implicit_sequence['on']['field'] = $field_name;
|
|
|
430 |
$definition[1]['name'] = $table.'_'.$field_name;
|
|
|
431 |
$definition[1]['definition'] = $implicit_sequence;
|
|
|
432 |
}
|
|
|
433 |
if (MDB::isError($indexes = $db->queryAll("EXEC sp_pkeys @table_name='$table'"
|
|
|
434 |
, NULL, MDB_FETCHMODE_ASSOC)))
|
|
|
435 |
{
|
|
|
436 |
return $indexes;
|
|
|
437 |
}
|
|
|
438 |
if ($indexes != NULL) {
|
|
|
439 |
$is_primary = FALSE;
|
|
|
440 |
foreach ($indexes as $index) {
|
|
|
441 |
if ($index['column_name'] == $field_name) {
|
|
|
442 |
$is_primary = TRUE;
|
|
|
443 |
break;
|
|
|
444 |
}
|
|
|
445 |
}
|
|
|
446 |
if ($is_primary) {
|
|
|
447 |
$implicit_index = array();
|
|
|
448 |
$implicit_index['unique'] = 1;
|
|
|
449 |
$implicit_index['FIELDS'][$field_name] = '';
|
|
|
450 |
$definition[2]['name'] = $field_name;
|
|
|
451 |
$definition[2]['definition'] = $implicit_index;
|
|
|
452 |
}
|
|
|
453 |
}
|
|
|
454 |
return($definition);
|
|
|
455 |
}
|
|
|
456 |
|
|
|
457 |
// }}}
|
|
|
458 |
// {{{ createSequence()
|
|
|
459 |
|
|
|
460 |
/**
|
|
|
461 |
* create sequence
|
|
|
462 |
*
|
|
|
463 |
* @param object $dbs database object that is extended by this class
|
|
|
464 |
* @param string $seq_name name of the sequence to be created
|
|
|
465 |
* @param string $start start value of the sequence; default is 1
|
|
|
466 |
* @return mixed MDB_OK on success, a MDB error on failure
|
|
|
467 |
* @access public
|
|
|
468 |
*/
|
|
|
469 |
function createSequence(&$db, $seq_name, $start)
|
|
|
470 |
{
|
|
|
471 |
$sequence_name = $db->getSequenceName($seq_name);
|
|
|
472 |
$query = "CREATE TABLE $sequence_name (".$db->options['sequence_col_name']." INT NOT NULL IDENTITY($start,1) PRIMARY KEY CLUSTERED)";
|
|
|
473 |
return($db->query($query));
|
|
|
474 |
}
|
|
|
475 |
|
|
|
476 |
// }}}
|
|
|
477 |
// {{{ dropSequence()
|
|
|
478 |
|
|
|
479 |
/**
|
|
|
480 |
* drop existing sequence
|
|
|
481 |
*
|
|
|
482 |
* @param object $dbs database object that is extended by this class
|
|
|
483 |
* @param string $seq_name name of the sequence to be dropped
|
|
|
484 |
* @return mixed MDB_OK on success, a MDB error on failure
|
|
|
485 |
* @access public
|
|
|
486 |
*/
|
|
|
487 |
function dropSequence(&$db, $seq_name)
|
|
|
488 |
{
|
|
|
489 |
$sequence_name = $db->getSequenceName($seq_name);
|
|
|
490 |
return($db->Query("DROP TABLE $sequence_name"));
|
|
|
491 |
}
|
|
|
492 |
}
|
|
|
493 |
|
|
|
494 |
};
|
|
|
495 |
?>
|