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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: Lorenzo Alberton <l.alberton@quipo.it> |
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// +----------------------------------------------------------------------+
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//
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// $Id: ibase.php,v 1.2.4.3 2004/02/15 16:23:09 lsmith Exp $
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if(!defined('MDB_MANAGER_IBASE_INCLUDED'))
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{
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define('MDB_MANAGER_IBASE_INCLUDED', 1);
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require_once('MDB/Modules/Manager/Common.php');
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/**
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* MDB FireBird/InterBase driver for the management modules
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*
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* @package MDB
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* @category Database
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* @access private
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* @author Lorenzo Alberton <l.alberton@quipo.it>
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*/
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class MDB_Manager_ibase extends MDB_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 object $db database object that is extended by this class
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* @param string $name name of the database that should be created
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* @return mixed MDB_OK on success, a MDB error on failure
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* @access public
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**/
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function createDatabase(&$db, $name)
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{
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return ($db->raiseError(MDB_ERROR_UNSUPPORTED, NULL, NULL, 'Create database',
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'PHP Interbase API does not support direct queries. You have to '
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.'create the db manually by using isql command or a similar program'));
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}
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// }}}
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// {{{ dropDatabase()
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/**
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* drop an existing database
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*
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* @param object $db database object that is extended by this class
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* @param string $name name of the database that should be dropped
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* @return mixed MDB_OK on success, a MDB error on failure
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* @access public
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**/
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function dropDatabase(&$db, $name)
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{
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return ($db->raiseError(MDB_ERROR_UNSUPPORTED, NULL, NULL, 'Drop database',
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'PHP Interbase API does not support direct queries. You have '
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.'to drop the db manually by using isql command or a similar program'));
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}
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// }}}
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// {{{ checkSupportedChanges()
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/**
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* check if planned changes are supported
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*
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* @param object $db database object that is extended by this class
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* @param string $name name of the database that should be dropped
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* @return mixed MDB_OK on success, a MDB error on failure
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* @access public
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**/
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function checkSupportedChanges(&$db, &$changes)
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{
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for($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 "ChangedNotNull":
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case "notnull":
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return($this->raiseError(MDB_ERROR_MANAGER, NULL, NULL,
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'Check supported changes: it is not supported changes to field not null constraint'));
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case "ChangedDefault":
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case "default":
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return($this->raiseError(MDB_ERROR_MANAGER, NULL, NULL,
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'Check supported changes: it is not supported changes to field default value'));
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case "length":
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return($this->raiseError(MDB_ERROR_MANAGER, NULL, NULL,
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'Check supported changes: it is not supported changes to field default length'));
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case "unsigned":
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case "type":
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case "Declaration":
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case "Definition":
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break;
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default:
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return($this->raiseError(MDB_ERROR_MANAGER, NULL, NULL,
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'Check supported changes: it is not supported change of type' . key($changes)));
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}
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}
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return(MDB_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 object $db database object that is extended by this class
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* @param string $name name of the table that is intended to be changed.
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* @param array $changes associative array that contains the details of each type
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* of change that is intended to be performed. The types of
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* changes that are currently supported are defined as follows:
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*
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* name
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*
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* New name for the table.
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*
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* AddedFields
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*
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* Associative array with the names of fields to be added as
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* indexes of the array. The value of each entry of the array
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* should be set to another associative array with the properties
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* of the fields to be added. The properties of the fields should
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* be the same as defined by the Metabase parser.
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*
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* Additionally, there should be an entry named Declaration that
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* is expected to contain the portion of the field declaration already
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* in DBMS specific SQL code as it is used in the CREATE TABLE statement.
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*
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* RemovedFields
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*
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* Associative array with the names of fields to be removed as indexes
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* of the array. Currently the values assigned to each entry are ignored.
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* An empty array should be used for future compatibility.
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*
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* RenamedFields
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*
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* Associative array with the names of fields to be renamed as indexes
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* of the array. The value of each entry of the array should be set to
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* another associative array with the entry named name with the new
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* field name and the entry named Declaration that is expected to contain
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* the portion of the field declaration already in DBMS specific SQL code
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* as it is used in the CREATE TABLE statement.
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*
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* ChangedFields
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*
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* Associative array with the names of the fields to be changed as indexes
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* of the array. Keep in mind that if it is intended to change either the
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* name of a field and any other properties, the ChangedFields array entries
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* should have the new names of the fields as array indexes.
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*
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* The value of each entry of the array should be set to another associative
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* array with the properties of the fields to that are meant to be changed as
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* array entries. These entries should be assigned to the new values of the
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* respective properties. The properties of the fields should be the same
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* as defined by the Metabase parser.
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*
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* If the default property is meant to be added, removed or changed, there
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* should also be an entry with index ChangedDefault assigned to 1. Similarly,
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* if the notnull constraint is to be added or removed, there should also be
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* an entry with index ChangedNotNull assigned to 1.
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*
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* Additionally, there should be an entry named Declaration that is expected
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* to contain the portion of the field changed declaration already in DBMS
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* specific SQL code as it is used in the CREATE TABLE statement.
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* Example
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* array(
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* 'name' => 'userlist',
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* 'AddedFields' => array(
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* 'quota' => array(
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* 'type' => 'integer',
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* 'unsigned' => 1
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* 'Declaration' => 'quota INT'
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* )
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* ),
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* 'RemovedFields' => array(
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* 'file_limit' => array(),
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* 'time_limit' => array()
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* ),
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* 'ChangedFields' => array(
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* 'gender' => array(
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* 'default' => 'M',
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* 'ChangeDefault' => 1,
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* 'Declaration' => "gender CHAR(1) DEFAULT 'M'"
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* )
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* ),
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* 'RenamedFields' => array(
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* 'sex' => array(
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* 'name' => 'gender',
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* 'Declaration' => "gender CHAR(1) DEFAULT 'M'"
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* )
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* )
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* )
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* @param boolean $check indicates whether the function should just check if the DBMS driver
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* can perform the requested table alterations if the value is TRUE or
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* actually perform them otherwise.
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* @return mixed MDB_OK on success, a MDB error on failure
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* @access public
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**/
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function alterTable(&$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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case "RemovedFields":
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case "RenamedFields":
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break;
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case "ChangedFields":
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$fields = $changes['ChangedFields'];
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for($field=0, reset($fields);
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$field<count($fields);
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next($fields), $field++)
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{
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if(MDB::isError($err = $this->checkSupportedChanges($fields[Key($fields)]))) {
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return($err);
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}
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}
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break;
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default:
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return($this->raiseError(MDB_ERROR_MANAGER, NULL, NULL,
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'Alter table: change type ' . key($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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$query = '';
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if(isset($changes['AddedFields'])) {
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$fields = $changes['AddedFields'];
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for($field=0, reset($fields); $field<count($fields); next($fields), $field++) {
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if(strcmp($query, "")) {
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$query .= ', ';
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}
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$query .= 'ADD ' . $fields[key($fields)]['Declaration'];
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}
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}
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if(isset($changes['RemovedFields'])) {
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$fields = $changes['RemovedFields'];
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for($field=0, reset($fields); $field<count($fields); next($fields), $field++) {
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if(strcmp($query, "")) {
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$query .= ', ';
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}
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$query .= 'DROP ' . key($fields);
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}
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}
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if(isset($changes['RenamedFields'])) {
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$fields = $changes['RenamedFields'];
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for($field=0, reset($fields); $field<count($fields); next($fields), $field++) {
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if(strcmp($query, "")) {
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$query .= ', ';
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}
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$query .= 'ALTER ' . key($fields) . ' TO ' . $fields[Key($fields)]['name'];
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}
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}
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if(isset($changes['ChangedFields'])) {
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$fields = $changes['ChangedFields'];
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for($field=0, reset($fields); $field<count($fields); next($fields), $field++) {
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$field_name = key($fields);
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if(MDB::isError($err = $this->CheckSupportedChanges($fields[Key($fields)]))) {
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return($err);
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}
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if(strcmp($query, "")) {
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$query .= ', ';
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}
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$query .= 'ALTER '.$field_name.' TYPE '.$db->getFieldDeclaration($fields[$field_name]['Definition']);
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}
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}
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if(MDB::isError($err = $db->query("ALTER TABLE $name $query"))) {
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return $err;
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}
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return(MDB_OK);
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}
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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 = $db->query("SELECT RDB$FIELD_SOURCE FROM RDB$RELATION_FIELDS WHERE RDB$RELATION_NAME='$table'");
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if(MDB::isError($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($columns);
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}
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return($columns);
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}
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// }}}
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// {{{ getTableFieldDefinition()
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// }}}
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// {{{ listViews()
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/**
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348 |
* list the views in the database
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*
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350 |
* @param object $db database object that is extended by this class
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* @return mixed MDB_OK on success, a MDB error on failure
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352 |
* @access public
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353 |
**/
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|
354 |
function listViews(&$db)
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|
355 |
{
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|
356 |
//return($db->queryCol('SELECT RDB$VIEW_NAME'));
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|
357 |
return($db->raiseError(MDB_ERROR_UNSUPPORTED, NULL, NULL, 'not supported feature'));
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|
358 |
}
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|
359 |
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|
360 |
// }}}
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361 |
// {{{ createIndex()
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|
362 |
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|
363 |
/**
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|
364 |
* get the stucture of a field into an array
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|
365 |
*
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|
366 |
* @param object $dbs database object that is extended by this class
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|
367 |
* @param string $table name of the table on which the index is to be created
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|
368 |
* @param string $name name of the index to be created
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|
369 |
* @param array $definition associative array that defines properties of the index to be created.
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|
370 |
* Currently, only one property named FIELDS is supported. This property
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|
371 |
* is also an associative with the names of the index fields as array
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|
372 |
* indexes. Each entry of this array is set to another type of associative
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|
373 |
* array that specifies properties of the index that are specific to
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|
374 |
* each field.
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|
375 |
*
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|
376 |
* Currently, only the sorting property is supported. It should be used
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|
377 |
* to define the sorting direction of the index. It may be set to either
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|
378 |
* ascending or descending.
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|
379 |
*
|
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|
380 |
* Not all DBMS support index sorting direction configuration. The DBMS
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|
381 |
* drivers of those that do not support it ignore this property. Use the
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|
382 |
* function support() to determine whether the DBMS driver can manage indexes.
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|
383 |
|
|
|
384 |
* Example
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|
|
385 |
* array(
|
|
|
386 |
* 'FIELDS' => array(
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|
387 |
* 'user_name' => array(
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|
388 |
* 'sorting' => 'ascending'
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|
389 |
* ),
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|
390 |
* 'last_login' => array()
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|
391 |
* )
|
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|
392 |
* )
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|
393 |
* @return mixed MDB_OK on success, a MDB error on failure
|
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|
394 |
* @access public
|
|
|
395 |
*/
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|
396 |
function createIndex(&$db, $table, $name, $definition)
|
|
|
397 |
{
|
|
|
398 |
for($query_sort='', $query_fields='', $field=0, reset($definition['FIELDS']);
|
|
|
399 |
$field<count($definition['FIELDS']);
|
|
|
400 |
$field++, next($definition['FIELDS']))
|
|
|
401 |
{
|
|
|
402 |
if($field > 0) {
|
|
|
403 |
$query_fields .= ',';
|
|
|
404 |
}
|
|
|
405 |
$field_name = key($definition['FIELDS']);
|
|
|
406 |
$query_fields .= $field_name;
|
|
|
407 |
if(!strcmp($query_sort, "")
|
|
|
408 |
&& $db->support('IndexSorting')
|
|
|
409 |
&& isset($definition['FIELDS'][$field_name]['sorting']))
|
|
|
410 |
{
|
|
|
411 |
switch($definition['FIELDS'][$field_name]['sorting']) {
|
|
|
412 |
case "ascending":
|
|
|
413 |
$query_sort = " ASC";
|
|
|
414 |
break;
|
|
|
415 |
case "descending":
|
|
|
416 |
$query_sort = " DESC";
|
|
|
417 |
break;
|
|
|
418 |
}
|
|
|
419 |
}
|
|
|
420 |
}
|
|
|
421 |
return($db->query('CREATE'.(isset($definition['unique']) ? ' UNIQUE' : '') . $query_sort
|
|
|
422 |
." INDEX $name ON $table ($query_fields)"));
|
|
|
423 |
}
|
|
|
424 |
|
|
|
425 |
// }}}
|
|
|
426 |
// {{{ createSequence()
|
|
|
427 |
|
|
|
428 |
/**
|
|
|
429 |
* create sequence
|
|
|
430 |
*
|
|
|
431 |
* @param object $db database object that is extended by this class
|
|
|
432 |
* @param string $seq_name name of the sequence to be created
|
|
|
433 |
* @param string $start start value of the sequence; default is 1
|
|
|
434 |
* @return mixed MDB_OK on success, a MDB error on failure
|
|
|
435 |
* @access public
|
|
|
436 |
**/
|
|
|
437 |
function createSequence(&$db, $seq_name, $start)
|
|
|
438 |
{
|
|
|
439 |
$seqname = $db->getSequenceName($seq_name);
|
|
|
440 |
if (MDB::isError($result = $db->query("CREATE GENERATOR $seqname"))) {
|
|
|
441 |
return($result);
|
|
|
442 |
}
|
|
|
443 |
if (MDB::isError($result = $db->query("SET GENERATOR $seqname TO ".($start-1)))) {
|
|
|
444 |
if (MDB::isError($err = $db->dropSequence($seq_name))) {
|
|
|
445 |
return($this->raiseError(MDB_ERROR_MANAGER, NULL, NULL,
|
|
|
446 |
'Could not setup sequence start value and then it was not possible to drop it: '
|
|
|
447 |
.$err->getMessage().' - ' .$err->getUserInfo()));
|
|
|
448 |
}
|
|
|
449 |
}
|
|
|
450 |
return($result);
|
|
|
451 |
}
|
|
|
452 |
|
|
|
453 |
// }}}
|
|
|
454 |
// {{{ dropSequence()
|
|
|
455 |
|
|
|
456 |
/**
|
|
|
457 |
* drop existing sequence
|
|
|
458 |
*
|
|
|
459 |
* @param object $db database object that is extended by this class
|
|
|
460 |
* @param string $seq_name name of the sequence to be dropped
|
|
|
461 |
* @return mixed MDB_OK on success, a MDB error on failure
|
|
|
462 |
* @access public
|
|
|
463 |
**/
|
|
|
464 |
function dropSequence(&$db, $seq_name)
|
|
|
465 |
{
|
|
|
466 |
$seqname = $db->getSequenceName($seq_name);
|
|
|
467 |
return($db->query("DELETE FROM RDB\$GENERATORS WHERE RDB\$GENERATOR_NAME='".strtoupper($seqname)."'"));
|
|
|
468 |
}
|
|
|
469 |
|
|
|
470 |
// }}}
|
|
|
471 |
// {{{ listSequences()
|
|
|
472 |
|
|
|
473 |
/**
|
|
|
474 |
* list all sequences in the current database
|
|
|
475 |
*
|
|
|
476 |
* @param object $db database object that is extended by this class
|
|
|
477 |
* @return mixed data array on success, a MDB error on failure
|
|
|
478 |
* @access public
|
|
|
479 |
**/
|
|
|
480 |
function listSequences(&$db)
|
|
|
481 |
{
|
|
|
482 |
return($db->queryCol("SELECT RDB\$GENERATOR_NAME FROM RDB\$GENERATORS"));
|
|
|
483 |
}
|
|
|
484 |
}
|
|
|
485 |
|
|
|
486 |
};
|
|
|
487 |
?>
|