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617 lines
22 KiB
PHTML
617 lines
22 KiB
PHTML
19 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) 1998-2004 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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// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB |
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// | API as well as database abstraction for PHP applications. |
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// | This LICENSE is in the BSD license style. |
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// | |
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// | Redistribution and use in source and binary forms, with or without |
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// | modification, are permitted provided that the following conditions |
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// | are met: |
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// | |
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// | Redistributions of source code must retain the above copyright |
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// | notice, this list of conditions and the following disclaimer. |
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// | |
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// | Redistributions in binary form must reproduce the above copyright |
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// | notice, this list of conditions and the following disclaimer in the |
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// | documentation and/or other materials provided with the distribution. |
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// | |
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// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
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// | Lukas Smith nor the names of his contributors may be used to endorse |
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// | or promote products derived from this software without specific prior|
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// | written permission. |
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// | |
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// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
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// | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
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// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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// | POSSIBILITY OF SUCH DAMAGE. |
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// +----------------------------------------------------------------------+
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// | Author: Lukas Smith <smith@pooteeweet.org> |
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// +----------------------------------------------------------------------+
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//
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// $Id$
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//
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/**
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* @package MDB2
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* @category Database
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* @author Lukas Smith <smith@pooteeweet.org>
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*/
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/**
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* Base class for the management modules that is extended by each MDB2 driver
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*
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* @package MDB2
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* @category Database
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* @author Lukas Smith <smith@pooteeweet.org>
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*/
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class MDB2_Driver_Manager_Common extends MDB2_Module_Common
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{
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// }}}
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// {{{ getFieldDeclarationList()
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/**
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* get declaration of a number of field in bulk
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*
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* @param string $fields a multidimensional associative array.
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* The first dimension determines the field name, while the second
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* dimension is keyed with the name of the properties
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* of the field being declared as array indexes. Currently, the types
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* of supported field properties are as follows:
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*
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* default
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* Boolean value to be used as default for this field.
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*
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* notnull
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* Boolean flag that indicates whether this field is constrained
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* to not be set to null.
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*
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* @return mixed string on success, a MDB2 error on failure
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* @access public
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*/
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function getFieldDeclarationList($fields)
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{
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$db =& $this->getDBInstance();
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if (PEAR::isError($db)) {
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return $db;
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}
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if (is_array($fields)) {
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foreach ($fields as $field_name => $field) {
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$query = $db->getDeclaration($field['type'], $field_name, $field);
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if (PEAR::isError($query)) {
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return $query;
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}
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$query_fields[] = $query;
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}
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return implode(',', $query_fields);
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}
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return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
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'getFieldDeclarationList: the definition of the table "'.$table_name.'" does not contain any fields');
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}
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// }}}
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// {{{ _isSequenceName()
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/**
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* list all tables in the current database
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*
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* @param string $sqn string that containts name of a potential sequence
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* @return mixed name of the sequence if $sqn is a name of a sequence, else false
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* @access protected
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*/
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function _isSequenceName($sqn)
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{
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$db =& $this->getDBInstance();
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if (PEAR::isError($db)) {
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return $db;
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}
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$seq_pattern = '/^'.preg_replace('/%s/', '([a-z0-9_]+)', $db->options['seqname_format']).'$/i';
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$seq_name = preg_replace($seq_pattern, '\\1', $sqn);
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if ($seq_name && $sqn == $db->getSequenceName($seq_name)) {
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return $seq_name;
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}
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return false;
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}
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// }}}
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// {{{ createDatabase()
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/**
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* create a new database
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*
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* @param string $name name of the database that should be created
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function createDatabase($database)
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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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return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
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'createDatabase: database creation is not supported');
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}
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// }}}
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// {{{ dropDatabase()
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/**
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* drop an existing database
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*
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* @param string $name name of the database that should be dropped
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function dropDatabase($database)
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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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return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
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'dropDatabase: database dropping is not supported');
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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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* 'password' => array(
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* 'type' => 'text',
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* 'length' => 12
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* )
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* );
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* @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, $fields)
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{
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$db =& $this->getDBInstance();
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if (PEAR::isError($db)) {
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return $db;
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}
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if (!$name) {
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return $db->raiseError(MDB2_ERROR_CANNOT_CREATE, null, null,
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'createTable: no valid table name specified');
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}
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if (empty($fields)) {
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return $db->raiseError(MDB2_ERROR_CANNOT_CREATE, null, null,
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'createTable: no fields specified for table "'.$name.'"');
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}
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$query_fields = $this->getFieldDeclarationList($fields);
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if (PEAR::isError($query_fields)) {
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return $db->raiseError(MDB2_ERROR_CANNOT_CREATE, null, null,
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'createTable: unkown error');
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}
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$query = "CREATE TABLE $name ($query_fields)";
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return $db->query($query);
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}
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// }}}
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// {{{ dropTable()
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/**
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* drop an existing table
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*
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* @param string $name name of the table that should be dropped
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function dropTable($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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return $db->query("DROP TABLE $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 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 Metabase 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 Metabase 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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* 'gender' => array(
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* 'default' => 'M',
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* )
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* ),
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* 'rename' => array(
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* 'sex' => array(
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* 'name' => 'gender',
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* )
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* )
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* )
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* @param boolean $check indicates whether the function should just check if the DBMS driver
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* can perform the requested table alterations if the value is true or
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* actually perform them otherwise.
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function alterTable($name, $changes, $check)
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{
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$db =& $this->getDBInstance();
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if (PEAR::isError($db)) {
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return $db;
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}
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return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
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'alterTable: database table alterations are not supported');
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}
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// }}}
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// {{{ listDatabases()
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/**
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* list all databases
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*
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* @return mixed data array on success, a MDB2 error on failure
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* @access public
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*/
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function listDatabases()
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{
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$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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return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
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'listDatabases: list databases is not supported');
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}
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// }}}
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// {{{ listUsers()
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/**
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* list all users
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*
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||
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* @return mixed data array on success, a MDB2 error on failure
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||
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* @access public
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||
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*/
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function listUsers()
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{
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||
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$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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}
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||
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return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
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'listUsers: list user is not supported');
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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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// {{{ listViews()
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||
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/**
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||
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* list all views in the current database
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||
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|
*
|
||
|
|
* @return mixed data array on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function listViews()
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
||
|
|
'listViews: list view is not supported');
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ listFunctions()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* list all functions in the current database
|
||
|
|
*
|
||
|
|
* @return mixed data array on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function listFunctions()
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
||
|
|
'listFunctions: list function is not supported');
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ listTables()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* list all tables in the current database
|
||
|
|
*
|
||
|
|
* @return mixed data array on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function listTables()
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
||
|
|
'listTables: list tables is not supported');
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ listTableFields()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* list all fields in a tables in the current database
|
||
|
|
*
|
||
|
|
* @param string $table name of table that should be used in method
|
||
|
|
* @return mixed data array on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function listTableFields($table)
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
||
|
|
'listTableFields: list table fields is not supported');
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ createIndex()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* get the stucture of a field into an array
|
||
|
|
*
|
||
|
|
* @param string $table name of the table on which the index is to be created
|
||
|
|
* @param string $name name of the index to be created
|
||
|
|
* @param array $definition associative array that defines properties of the index to be created.
|
||
|
|
* Currently, only one property named FIELDS is supported. This property
|
||
|
|
* is also an associative with the names of the index fields as array
|
||
|
|
* indexes. Each entry of this array is set to another type of associative
|
||
|
|
* array that specifies properties of the index that are specific to
|
||
|
|
* each field.
|
||
|
|
*
|
||
|
|
* Currently, only the sorting property is supported. It should be used
|
||
|
|
* to define the sorting direction of the index. It may be set to either
|
||
|
|
* ascending or descending.
|
||
|
|
*
|
||
|
|
* Not all DBMS support index sorting direction configuration. The DBMS
|
||
|
|
* drivers of those that do not support it ignore this property. Use the
|
||
|
|
* function supports() to determine whether the DBMS driver can manage indexes.
|
||
|
|
*
|
||
|
|
* Example
|
||
|
|
* array(
|
||
|
|
* 'fields' => array(
|
||
|
|
* 'user_name' => array(
|
||
|
|
* 'sorting' => 'ascending'
|
||
|
|
* ),
|
||
|
|
* 'last_login' => array()
|
||
|
|
* )
|
||
|
|
* )
|
||
|
|
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function createIndex($table, $name, $definition)
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
||
|
|
'createIndex: Creating Indexes is not supported');
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ 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;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $db->query("DROP INDEX $name");
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ listTableIndexes()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* list all indexes in a table
|
||
|
|
*
|
||
|
|
* @param string $table name of table that should be used in method
|
||
|
|
* @return mixed data array on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function listTableIndexes($table)
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
||
|
|
'listTableIndexes: List Indexes is not supported');
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ 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;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
||
|
|
'createSequence: sequence creation not supported');
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ dropSequence()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* drop existing sequence
|
||
|
|
*
|
||
|
|
* @param string $seq_name name of the sequence to be dropped
|
||
|
|
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function dropSequence($name)
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
||
|
|
'dropSequence: sequence dropping not supported');
|
||
|
|
}
|
||
|
|
|
||
|
|
// }}}
|
||
|
|
// {{{ listSequences()
|
||
|
|
|
||
|
|
/**
|
||
|
|
* list all sequences in the current database
|
||
|
|
*
|
||
|
|
* @return mixed data array on success, a MDB2 error on failure
|
||
|
|
* @access public
|
||
|
|
*/
|
||
|
|
function listSequences()
|
||
|
|
{
|
||
|
|
$db =& $this->getDBInstance();
|
||
|
|
if (PEAR::isError($db)) {
|
||
|
|
return $db;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
||
|
|
'listSequences: List sequences is not supported');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
?>
|