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- <?php
- // +----------------------------------------------------------------------+
- // | PHP Version 4 |
- // +----------------------------------------------------------------------+
- // | Copyright (c) 1998-2004 Manuel Lemos, Tomas V.V.Cox, |
- // | Stig. S. Bakken, Lukas Smith |
- // | All rights reserved. |
- // +----------------------------------------------------------------------+
- // | MDB is a merge of PEAR DB and Metabases that provides a unified DB |
- // | API as well as database abstraction for PHP applications. |
- // | This LICENSE is in the BSD license style. |
- // | |
- // | Redistribution and use in source and binary forms, with or without |
- // | modification, are permitted provided that the following conditions |
- // | are met: |
- // | |
- // | Redistributions of source code must retain the above copyright |
- // | notice, this list of conditions and the following disclaimer. |
- // | |
- // | Redistributions in binary form must reproduce the above copyright |
- // | notice, this list of conditions and the following disclaimer in the |
- // | documentation and/or other materials provided with the distribution. |
- // | |
- // | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
- // | Lukas Smith nor the names of his contributors may be used to endorse |
- // | or promote products derived from this software without specific prior|
- // | written permission. |
- // | |
- // | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
- // | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
- // | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
- // | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
- // | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
- // | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
- // | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
- // | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
- // | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
- // | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
- // | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
- // | POSSIBILITY OF SUCH DAMAGE. |
- // +----------------------------------------------------------------------+
- // | Author: Lorenzo Alberton <l.alberton@quipo.it> |
- // +----------------------------------------------------------------------+
- //
- // $Id: ibase.php,v 1.2.4.2 2004/01/08 13:43:01 lsmith Exp $
-
- if(!defined('MDB_MANAGER_IBASE_INCLUDED'))
- {
- define('MDB_MANAGER_IBASE_INCLUDED', 1);
-
- require_once('MDB/Modules/Manager/Common.php');
-
- /**
- * MDB FireBird/InterBase driver for the management modules
- *
- * @package MDB
- * @category Database
- * @access private
- * @author Lorenzo Alberton <l.alberton@quipo.it>
- */
- class MDB_Manager_ibase extends MDB_Manager_common
- {
-
- // {{{ createDatabase()
-
- /**
- * create a new database
- *
- * @param object $db database object that is extended by this class
- * @param string $name name of the database that should be created
- * @return mixed MDB_OK on success, a MDB error on failure
- * @access public
- **/
- function createDatabase(&$db, $name)
- {
- return ($db->raiseError(MDB_ERROR_UNSUPPORTED, NULL, NULL, 'Create database',
- 'PHP Interbase API does not support direct queries. You have to '
- .'create the db manually by using isql command or a similar program'));
- }
-
- // }}}
- // {{{ dropDatabase()
-
- /**
- * drop an existing database
- *
- * @param object $db database object that is extended by this class
- * @param string $name name of the database that should be dropped
- * @return mixed MDB_OK on success, a MDB error on failure
- * @access public
- **/
- function dropDatabase(&$db, $name)
- {
- return ($db->raiseError(MDB_ERROR_UNSUPPORTED, NULL, NULL, 'Drop database',
- 'PHP Interbase API does not support direct queries. You have '
- .'to drop the db manually by using isql command or a similar program'));
- }
-
- // }}}
- // {{{ checkSupportedChanges()
-
- /**
- * check if planned changes are supported
- *
- * @param object $db database object that is extended by this class
- * @param string $name name of the database that should be dropped
- * @return mixed MDB_OK on success, a MDB error on failure
- * @access public
- **/
- function checkSupportedChanges(&$db, &$changes)
- {
- for($change=0, reset($changes);
- $change<count($changes);
- next($changes), $change++)
- {
- switch(key($changes)) {
- case "ChangedNotNull":
- case "notnull":
- return($this->raiseError(MDB_ERROR_MANAGER, '', '',
- 'Check supported changes: it is not supported changes to field not null constraint'));
- case "ChangedDefault":
- case "default":
- return($this->raiseError(MDB_ERROR_MANAGER, '', '',
- 'Check supported changes: it is not supported changes to field default value'));
- case "length":
- return($this->raiseError(MDB_ERROR_MANAGER, '', '',
- 'Check supported changes: it is not supported changes to field default length'));
- case "unsigned":
- case "type":
- case "Declaration":
- case "Definition":
- break;
- default:
- return($this->raiseError(MDB_ERROR_MANAGER, '', '',
- 'Check supported changes: it is not supported change of type' . key($changes)));
- }
- }
- return(MDB_OK);
- }
-
- // }}}
- // {{{ alterTable()
-
- /**
- * alter an existing table
- *
- * @param object $db database object that is extended by this class
- * @param string $name name of the table that is intended to be changed.
- * @param array $changes associative array that contains the details of each type
- * of change that is intended to be performed. The types of
- * changes that are currently supported are defined as follows:
- *
- * name
- *
- * New name for the table.
- *
- * AddedFields
- *
- * Associative array with the names of fields to be added as
- * indexes of the array. The value of each entry of the array
- * should be set to another associative array with the properties
- * of the fields to be added. The properties of the fields should
- * be the same as defined by the Metabase parser.
- *
- * Additionally, there should be an entry named Declaration that
- * is expected to contain the portion of the field declaration already
- * in DBMS specific SQL code as it is used in the CREATE TABLE statement.
- *
- * RemovedFields
- *
- * Associative array with the names of fields to be removed as indexes
- * of the array. Currently the values assigned to each entry are ignored.
- * An empty array should be used for future compatibility.
- *
- * RenamedFields
- *
- * Associative array with the names of fields to be renamed as indexes
- * of the array. The value of each entry of the array should be set to
- * another associative array with the entry named name with the new
- * field name and the entry named Declaration that is expected to contain
- * the portion of the field declaration already in DBMS specific SQL code
- * as it is used in the CREATE TABLE statement.
- *
- * ChangedFields
- *
- * Associative array with the names of the fields to be changed as indexes
- * of the array. Keep in mind that if it is intended to change either the
- * name of a field and any other properties, the ChangedFields array entries
- * should have the new names of the fields as array indexes.
- *
- * The value of each entry of the array should be set to another associative
- * array with the properties of the fields to that are meant to be changed as
- * array entries. These entries should be assigned to the new values of the
- * respective properties. The properties of the fields should be the same
- * as defined by the Metabase parser.
- *
- * If the default property is meant to be added, removed or changed, there
- * should also be an entry with index ChangedDefault assigned to 1. Similarly,
- * if the notnull constraint is to be added or removed, there should also be
- * an entry with index ChangedNotNull assigned to 1.
- *
- * Additionally, there should be an entry named Declaration that is expected
- * to contain the portion of the field changed declaration already in DBMS
- * specific SQL code as it is used in the CREATE TABLE statement.
- * Example
- * array(
- * 'name' => 'userlist',
- * 'AddedFields' => array(
- * 'quota' => array(
- * 'type' => 'integer',
- * 'unsigned' => 1
- * 'Declaration' => 'quota INT'
- * )
- * ),
- * 'RemovedFields' => array(
- * 'file_limit' => array(),
- * 'time_limit' => array()
- * ),
- * 'ChangedFields' => array(
- * 'gender' => array(
- * 'default' => 'M',
- * 'ChangeDefault' => 1,
- * 'Declaration' => "gender CHAR(1) DEFAULT 'M'"
- * )
- * ),
- * 'RenamedFields' => array(
- * 'sex' => array(
- * 'name' => 'gender',
- * 'Declaration' => "gender CHAR(1) DEFAULT 'M'"
- * )
- * )
- * )
- * @param boolean $check indicates whether the function should just check if the DBMS driver
- * can perform the requested table alterations if the value is TRUE or
- * actually perform them otherwise.
- * @return mixed MDB_OK on success, a MDB error on failure
- * @access public
- **/
- function alterTable(&$db, $name, &$changes, $check)
- {
- if($check) {
- for($change=0, reset($changes);
- $change<count($changes);
- next($changes), $change++)
- {
- switch(key($changes)) {
- case "AddedFields":
- case "RemovedFields":
- case "RenamedFields":
- break;
- case "ChangedFields":
- $fields = $changes['ChangedFields'];
- for($field=0, reset($fields);
- $field<count($fields);
- next($fields), $field++)
- {
- if(MDB::isError($err = $this->checkSupportedChanges($fields[Key($fields)]))) {
- return($err);
- }
- }
- break;
- default:
- return($this->raiseError(MDB_ERROR_MANAGER, '', '',
- 'Alter table: change type ' . key($changes) . ' not yet supported'));
- }
- }
- return(MDB_OK);
- } else {
- $query = '';
- if(isset($changes['AddedFields'])) {
- $fields = $changes['AddedFields'];
- for($field=0, reset($fields); $field<count($fields); next($fields), $field++) {
- if(strcmp($query, "")) {
- $query .= ', ';
- }
- $query .= 'ADD ' . $fields[key($fields)]['Declaration'];
- }
- }
- if(isset($changes['RemovedFields'])) {
- $fields = $changes['RemovedFields'];
- for($field=0, reset($fields); $field<count($fields); next($fields), $field++) {
- if(strcmp($query, "")) {
- $query .= ', ';
- }
- $query .= 'DROP ' . key($fields);
- }
- }
- if(isset($changes['RenamedFields'])) {
- $fields = $changes['RenamedFields'];
- for($field=0, reset($fields); $field<count($fields); next($fields), $field++) {
- if(strcmp($query, "")) {
- $query .= ', ';
- }
- $query .= 'ALTER ' . key($fields) . ' TO ' . $fields[Key($fields)]['name'];
- }
- }
- if(isset($changes['ChangedFields'])) {
- $fields = $changes['ChangedFields'];
- for($field=0, reset($fields); $field<count($fields); next($fields), $field++) {
- $field_name = key($fields);
- if(MDB::isError($err = $this->CheckSupportedChanges($fields[Key($fields)]))) {
- return($err);
- }
- if(strcmp($query, "")) {
- $query .= ', ';
- }
- $query .= 'ALTER '.$field_name.' TYPE '.$db->getFieldDeclaration($fields[$field_name]['Definition']);
- }
- }
- if(MDB::isError($err = $db->query("ALTER TABLE $name $query"))) {
- return $err;
- }
- return(MDB_OK);
- }
- }
-
- // }}}
- // {{{ listTableFields()
-
- /**
- * list all fields in a tables in the current database
- *
- * @param object $db database object that is extended by this class
- * @param string $table name of table that should be used in method
- * @return mixed data array on success, a MDB error on failure
- * @access public
- */
- function listTableFields(&$db, $table)
- {
- $result = $db->query("SELECT RDB$FIELD_SOURCE FROM RDB$RELATION_FIELDS WHERE RDB$RELATION_NAME='$table'");
- if(MDB::isError($result)) {
- return($result);
- }
- $columns = $db->getColumnNames($result);
- if(MDB::isError($columns)) {
- $db->freeResult($columns);
- }
- return($columns);
- }
-
- // }}}
- // {{{ getTableFieldDefinition()
-
- // }}}
- // {{{ listViews()
-
- /**
- * list the views in the database
- *
- * @param object $db database object that is extended by this class
- * @return mixed MDB_OK on success, a MDB error on failure
- * @access public
- **/
- function listViews(&$db)
- {
- //return($db->queryCol('SELECT RDB$VIEW_NAME'));
- return($db->raiseError(MDB_ERROR_UNSUPPORTED, '', '', 'not supported feature'));
- }
-
- // }}}
- // {{{ createIndex()
-
- /**
- * get the stucture of a field into an array
- *
- * @param object $dbs database object that is extended by this class
- * @param string $table name of the table on which the index is to be created
- * @param string $name name of the index to be created
- * @param array $definition associative array that defines properties of the index to be created.
- * Currently, only one property named FIELDS is supported. This property
- * is also an associative with the names of the index fields as array
- * indexes. Each entry of this array is set to another type of associative
- * array that specifies properties of the index that are specific to
- * each field.
- *
- * Currently, only the sorting property is supported. It should be used
- * to define the sorting direction of the index. It may be set to either
- * ascending or descending.
- *
- * Not all DBMS support index sorting direction configuration. The DBMS
- * drivers of those that do not support it ignore this property. Use the
- * function support() to determine whether the DBMS driver can manage indexes.
-
- * Example
- * array(
- * 'FIELDS' => array(
- * 'user_name' => array(
- * 'sorting' => 'ascending'
- * ),
- * 'last_login' => array()
- * )
- * )
- * @return mixed MDB_OK on success, a MDB error on failure
- * @access public
- */
- function createIndex(&$db, $table, $name, $definition)
- {
- for($query_sort='', $query_fields='', $field=0, reset($definition['FIELDS']);
- $field<count($definition['FIELDS']);
- $field++, next($definition['FIELDS']))
- {
- if($field > 0) {
- $query_fields .= ',';
- }
- $field_name = key($definition['FIELDS']);
- $query_fields .= $field_name;
- if(!strcmp($query_sort, "")
- && $db->support('IndexSorting')
- && isset($definition['FIELDS'][$field_name]['sorting']))
- {
- switch($definition['FIELDS'][$field_name]['sorting']) {
- case "ascending":
- $query_sort = " ASC";
- break;
- case "descending":
- $query_sort = " DESC";
- break;
- }
- }
- }
- return($db->query('CREATE'.(isset($definition['unique']) ? ' UNIQUE' : '') . $query_sort
- ." INDEX $name ON $table ($query_fields)"));
- }
-
- // }}}
- // {{{ createSequence()
-
- /**
- * create sequence
- *
- * @param object $db database object that is extended by this class
- * @param string $seq_name name of the sequence to be created
- * @param string $start start value of the sequence; default is 1
- * @return mixed MDB_OK on success, a MDB error on failure
- * @access public
- **/
- function createSequence(&$db, $seq_name, $start)
- {
- $seqname = $db->getSequenceName($seq_name);
- if (MDB::isError($result = $db->query("CREATE GENERATOR $seqname"))) {
- return($result);
- }
- if (MDB::isError($result = $db->query("SET GENERATOR $seqname TO ".($start-1)))) {
- if (MDB::isError($err = $db->dropSequence($seq_name))) {
- return($this->raiseError(MDB_ERROR_MANAGER, NULL, NULL,
- 'Could not setup sequence start value and then it was not possible to drop it: '
- .$err->getMessage().' - ' .$err->getUserInfo()));
- }
- }
- return($result);
- }
-
- // }}}
- // {{{ dropSequence()
-
- /**
- * drop existing sequence
- *
- * @param object $db database object that is extended by this class
- * @param string $seq_name name of the sequence to be dropped
- * @return mixed MDB_OK on success, a MDB error on failure
- * @access public
- **/
- function dropSequence(&$db, $seq_name)
- {
- $seqname = $db->getSequenceName($seq_name);
- return($db->query("DELETE FROM RDB\$GENERATORS WHERE RDB\$GENERATOR_NAME='".strtoupper($seqname)."'"));
- }
-
- // }}}
- // {{{ listSequences()
-
- /**
- * list all sequences in the current database
- *
- * @param object $db database object that is extended by this class
- * @return mixed data array on success, a MDB error on failure
- * @access public
- **/
- function listSequences(&$db)
- {
- return($db->queryCol("SELECT RDB\$GENERATOR_NAME FROM RDB\$GENERATORS"));
- }
- }
-
- };
- ?>