forked from GNUsocial/gnu-social
622 lines
24 KiB
PHP
622 lines
24 KiB
PHP
<?php
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// +----------------------------------------------------------------------+
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// | PHP versions 4 and 5 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1998-2007 Manuel Lemos, Tomas V.V.Cox, |
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// | Stig. S. Bakken, Lukas Smith, Frank M. Kromann, Lorenzo Alberton |
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// | All rights reserved. |
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// +----------------------------------------------------------------------+
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// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB |
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// | API as well as database abstraction for PHP applications. |
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// | This LICENSE is in the BSD license style. |
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// | |
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// | Redistribution and use in source and binary forms, with or without |
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// | modification, are permitted provided that the following conditions |
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// | are met: |
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// | |
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// | Redistributions of source code must retain the above copyright |
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// | notice, this list of conditions and the following disclaimer. |
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// | |
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// | Redistributions in binary form must reproduce the above copyright |
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// | notice, this list of conditions and the following disclaimer in the |
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// | documentation and/or other materials provided with the distribution. |
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// | |
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// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
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// | Lukas Smith nor the names of his contributors may be used to endorse |
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// | or promote products derived from this software without specific prior|
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// | written permission. |
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// | |
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// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
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// | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
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// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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// | POSSIBILITY OF SUCH DAMAGE. |
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// +----------------------------------------------------------------------+
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// | Authors: Lukas Smith <smith@pooteeweet.org> |
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// | Lorenzo Alberton <l.alberton@quipo.it> |
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// +----------------------------------------------------------------------+
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//
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// $Id$
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//
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require_once 'MDB2/Driver/Reverse/Common.php';
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/**
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* MDB2 Oracle driver for the schema reverse engineering module
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*
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* @package MDB2
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* @category Database
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* @author Lukas Smith <smith@dybnet.de>
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*/
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class MDB2_Driver_Reverse_oci8 extends MDB2_Driver_Reverse_Common
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{
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// {{{ getTableFieldDefinition()
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/**
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* Get the structure of a field into an array
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*
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* @param string $table_name name of table that should be used in method
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* @param string $field_name name of field that should be used in method
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* @return mixed data array on success, a MDB2 error on failure
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* @access public
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*/
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function getTableFieldDefinition($table_name, $field_name)
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{
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$db = $this->getDBInstance();
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if (MDB2::isError($db)) {
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return $db;
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}
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$result = $db->loadModule('Datatype', null, true);
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if (MDB2::isError($result)) {
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return $result;
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}
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list($owner, $table) = $this->splitTableSchema($table_name);
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if (empty($owner)) {
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$owner = $db->dsn['username'];
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}
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$query = 'SELECT column_name name,
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data_type "type",
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nullable,
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data_default "default",
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COALESCE(data_precision, data_length) "length",
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data_scale "scale"
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FROM all_tab_columns
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WHERE (table_name=? OR table_name=?)
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AND (owner=? OR owner=?)
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AND (column_name=? OR column_name=?)
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ORDER BY column_id';
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$stmt = $db->prepare($query);
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if (MDB2::isError($stmt)) {
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return $stmt;
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}
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$args = array(
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$table,
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strtoupper($table),
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$owner,
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strtoupper($owner),
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$field_name,
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strtoupper($field_name)
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);
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$result = $stmt->execute($args);
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if (MDB2::isError($result)) {
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return $result;
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}
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$column = $result->fetchRow(MDB2_FETCHMODE_ASSOC);
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if (MDB2::isError($column)) {
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return $column;
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}
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$stmt->free();
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$result->free();
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if (empty($column)) {
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return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
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$field_name . ' is not a column in table ' . $table_name, __FUNCTION__);
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}
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$column = array_change_key_case($column, CASE_LOWER);
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if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
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if ($db->options['field_case'] == CASE_LOWER) {
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$column['name'] = strtolower($column['name']);
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} else {
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$column['name'] = strtoupper($column['name']);
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}
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}
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$mapped_datatype = $db->datatype->mapNativeDatatype($column);
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if (MDB2::isError($mapped_datatype)) {
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return $mapped_datatype;
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}
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list($types, $length, $unsigned, $fixed) = $mapped_datatype;
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$notnull = false;
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if (!empty($column['nullable']) && $column['nullable'] == 'N') {
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$notnull = true;
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}
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$default = false;
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if (array_key_exists('default', $column)) {
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$default = $column['default'];
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if ($default === 'NULL') {
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$default = null;
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}
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if ((null === $default) && $notnull) {
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$default = '';
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}
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}
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$definition[0] = array('notnull' => $notnull, 'nativetype' => $column['type']);
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if (null !== $length) {
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$definition[0]['length'] = $length;
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}
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if (null !== $unsigned) {
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$definition[0]['unsigned'] = $unsigned;
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}
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if (null !== $fixed) {
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$definition[0]['fixed'] = $fixed;
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}
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if ($default !== false) {
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$definition[0]['default'] = $default;
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}
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foreach ($types as $key => $type) {
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$definition[$key] = $definition[0];
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if ($type == 'clob' || $type == 'blob') {
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unset($definition[$key]['default']);
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}
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$definition[$key]['type'] = $type;
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$definition[$key]['mdb2type'] = $type;
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}
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if ($type == 'integer') {
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$query= "SELECT trigger_body
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FROM all_triggers
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WHERE table_name=?
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AND triggering_event='INSERT'
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AND trigger_type='BEFORE EACH ROW'";
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// ^^ pretty reasonable mimic for "auto_increment" in oracle?
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$stmt = $db->prepare($query);
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if (MDB2::isError($stmt)) {
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return $stmt;
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}
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$result = $stmt->execute(strtoupper($table));
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if (MDB2::isError($result)) {
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return $result;
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}
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while ($triggerstr = $result->fetchOne()) {
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if (preg_match('/.*SELECT\W+(.+)\.nextval +into +\:NEW\.'.$field_name.' +FROM +dual/im', $triggerstr, $matches)) {
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$definition[0]['autoincrement'] = $matches[1];
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}
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}
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$stmt->free();
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$result->free();
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}
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return $definition;
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}
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// }}}
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// {{{ getTableIndexDefinition()
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/**
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* Get the structure of an index into an array
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*
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* @param string $table_name name of table that should be used in method
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* @param string $index_name name of index that should be used in method
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* @return mixed data array on success, a MDB2 error on failure
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* @access public
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*/
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function getTableIndexDefinition($table_name, $index_name)
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{
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$db = $this->getDBInstance();
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if (MDB2::isError($db)) {
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return $db;
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}
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list($owner, $table) = $this->splitTableSchema($table_name);
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if (empty($owner)) {
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$owner = $db->dsn['username'];
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}
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$query = "SELECT aic.column_name,
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aic.column_position,
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aic.descend,
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aic.table_owner,
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alc.constraint_type
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FROM all_ind_columns aic
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LEFT JOIN all_constraints alc
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ON aic.index_name = alc.constraint_name
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AND aic.table_name = alc.table_name
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AND aic.table_owner = alc.owner
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WHERE (aic.table_name=? OR aic.table_name=?)
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AND (aic.index_name=? OR aic.index_name=?)
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AND (aic.table_owner=? OR aic.table_owner=?)
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ORDER BY column_position";
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$stmt = $db->prepare($query);
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if (MDB2::isError($stmt)) {
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return $stmt;
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}
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$indexnames = array_unique(array($db->getIndexName($index_name), $index_name));
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$i = 0;
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$row = null;
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while ((null === $row) && array_key_exists($i, $indexnames)) {
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$args = array(
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$table,
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strtoupper($table),
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$indexnames[$i],
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strtoupper($indexnames[$i]),
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$owner,
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strtoupper($owner)
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);
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$result = $stmt->execute($args);
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if (MDB2::isError($result)) {
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return $result;
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}
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$row = $result->fetchRow(MDB2_FETCHMODE_ASSOC);
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if (MDB2::isError($row)) {
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return $row;
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}
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$i++;
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}
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if (null === $row) {
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return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
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$index_name. ' is not an index on table '. $table_name, __FUNCTION__);
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}
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if ($row['constraint_type'] == 'U' || $row['constraint_type'] == 'P') {
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return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
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$index_name. ' is a constraint, not an index on table '. $table_name, __FUNCTION__);
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}
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$definition = array();
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while (null !== $row) {
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$row = array_change_key_case($row, CASE_LOWER);
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$column_name = $row['column_name'];
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if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
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if ($db->options['field_case'] == CASE_LOWER) {
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$column_name = strtolower($column_name);
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} else {
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$column_name = strtoupper($column_name);
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}
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}
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$definition['fields'][$column_name] = array(
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'position' => (int)$row['column_position'],
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);
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if (!empty($row['descend'])) {
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$definition['fields'][$column_name]['sorting'] =
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($row['descend'] == 'ASC' ? 'ascending' : 'descending');
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}
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$row = $result->fetchRow(MDB2_FETCHMODE_ASSOC);
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}
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$result->free();
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if (empty($definition['fields'])) {
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return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
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$index_name. ' is not an index on table '. $table_name, __FUNCTION__);
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}
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return $definition;
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}
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// }}}
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// {{{ getTableConstraintDefinition()
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/**
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* Get the structure of a constraint into an array
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*
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* @param string $table_name name of table that should be used in method
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* @param string $constraint_name name of constraint that should be used in method
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* @return mixed data array on success, a MDB2 error on failure
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* @access public
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*/
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function getTableConstraintDefinition($table_name, $constraint_name)
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{
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$db = $this->getDBInstance();
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if (MDB2::isError($db)) {
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return $db;
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}
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list($owner, $table) = $this->splitTableSchema($table_name);
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if (empty($owner)) {
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$owner = $db->dsn['username'];
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}
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$query = 'SELECT alc.constraint_name,
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CASE alc.constraint_type WHEN \'P\' THEN 1 ELSE 0 END "primary",
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CASE alc.constraint_type WHEN \'R\' THEN 1 ELSE 0 END "foreign",
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CASE alc.constraint_type WHEN \'U\' THEN 1 ELSE 0 END "unique",
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CASE alc.constraint_type WHEN \'C\' THEN 1 ELSE 0 END "check",
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alc.DELETE_RULE "ondelete",
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\'NO ACTION\' "onupdate",
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\'SIMPLE\' "match",
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CASE alc.deferrable WHEN \'NOT DEFERRABLE\' THEN 0 ELSE 1 END "deferrable",
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CASE alc.deferred WHEN \'IMMEDIATE\' THEN 0 ELSE 1 END "initiallydeferred",
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alc.search_condition,
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alc.table_name,
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cols.column_name,
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cols.position,
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r_alc.table_name "references_table",
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r_cols.column_name "references_field",
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r_cols.position "references_field_position"
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FROM all_cons_columns cols
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LEFT JOIN all_constraints alc
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ON alc.constraint_name = cols.constraint_name
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AND alc.owner = cols.owner
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LEFT JOIN all_constraints r_alc
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ON alc.r_constraint_name = r_alc.constraint_name
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AND alc.r_owner = r_alc.owner
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LEFT JOIN all_cons_columns r_cols
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ON r_alc.constraint_name = r_cols.constraint_name
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AND r_alc.owner = r_cols.owner
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AND cols.position = r_cols.position
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WHERE (alc.constraint_name=? OR alc.constraint_name=?)
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AND alc.constraint_name = cols.constraint_name
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AND (alc.owner=? OR alc.owner=?)';
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$tablenames = array();
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if (!empty($table)) {
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$query.= ' AND (alc.table_name=? OR alc.table_name=?)';
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$tablenames = array($table, strtoupper($table));
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}
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$stmt = $db->prepare($query);
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if (MDB2::isError($stmt)) {
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return $stmt;
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}
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$constraintnames = array_unique(array($db->getIndexName($constraint_name), $constraint_name));
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$c = 0;
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$row = null;
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while ((null === $row) && array_key_exists($c, $constraintnames)) {
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$args = array(
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$constraintnames[$c],
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strtoupper($constraintnames[$c]),
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$owner,
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strtoupper($owner)
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);
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if (!empty($table)) {
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$args = array_merge($args, $tablenames);
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}
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$result = $stmt->execute($args);
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if (MDB2::isError($result)) {
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return $result;
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}
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$row = $result->fetchRow(MDB2_FETCHMODE_ASSOC);
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if (MDB2::isError($row)) {
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return $row;
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}
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$c++;
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}
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$definition = array(
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'primary' => (boolean)$row['primary'],
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'unique' => (boolean)$row['unique'],
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'foreign' => (boolean)$row['foreign'],
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'check' => (boolean)$row['check'],
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'deferrable' => (boolean)$row['deferrable'],
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'initiallydeferred' => (boolean)$row['initiallydeferred'],
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'ondelete' => $row['ondelete'],
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'onupdate' => $row['onupdate'],
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'match' => $row['match'],
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);
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if ($definition['check']) {
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// pattern match constraint for check constraint values into enum-style output:
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$enumregex = '/'.$row['column_name'].' in \((.+?)\)/i';
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if (preg_match($enumregex, $row['search_condition'], $rangestr)) {
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$definition['fields'][$column_name] = array();
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$allowed = explode(',', $rangestr[1]);
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foreach ($allowed as $val) {
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$val = trim($val);
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$val = preg_replace('/^\'/', '', $val);
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$val = preg_replace('/\'$/', '', $val);
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array_push($definition['fields'][$column_name], $val);
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}
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}
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}
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while (null !== $row) {
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$row = array_change_key_case($row, CASE_LOWER);
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$column_name = $row['column_name'];
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if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
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if ($db->options['field_case'] == CASE_LOWER) {
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$column_name = strtolower($column_name);
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} else {
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$column_name = strtoupper($column_name);
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}
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}
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$definition['fields'][$column_name] = array(
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'position' => (int)$row['position']
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);
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if ($row['foreign']) {
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$ref_column_name = $row['references_field'];
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$ref_table_name = $row['references_table'];
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if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
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if ($db->options['field_case'] == CASE_LOWER) {
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$ref_column_name = strtolower($ref_column_name);
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$ref_table_name = strtolower($ref_table_name);
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} else {
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$ref_column_name = strtoupper($ref_column_name);
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$ref_table_name = strtoupper($ref_table_name);
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}
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}
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$definition['references']['table'] = $ref_table_name;
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$definition['references']['fields'][$ref_column_name] = array(
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'position' => (int)$row['references_field_position']
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);
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}
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$lastrow = $row;
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$row = $result->fetchRow(MDB2_FETCHMODE_ASSOC);
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}
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$result->free();
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if (empty($definition['fields'])) {
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return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
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$constraint_name . ' is not a constraint on table '. $table_name, __FUNCTION__);
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}
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return $definition;
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}
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// }}}
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// {{{ getSequenceDefinition()
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/**
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* Get the structure of a sequence into an array
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*
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* @param string $sequence name of sequence that should be used in method
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* @return mixed data array on success, a MDB2 error on failure
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* @access public
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*/
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function getSequenceDefinition($sequence)
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{
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$db = $this->getDBInstance();
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if (MDB2::isError($db)) {
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return $db;
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}
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$sequence_name = $db->getSequenceName($sequence);
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$query = 'SELECT last_number FROM user_sequences';
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$query.= ' WHERE sequence_name='.$db->quote($sequence_name, 'text');
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$query.= ' OR sequence_name='.$db->quote(strtoupper($sequence_name), 'text');
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$start = $db->queryOne($query, 'integer');
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if (MDB2::isError($start)) {
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return $start;
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}
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$definition = array();
|
|
if ($start != 1) {
|
|
$definition = array('start' => $start);
|
|
}
|
|
return $definition;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ getTriggerDefinition()
|
|
|
|
/**
|
|
* Get the structure of a trigger into an array
|
|
*
|
|
* EXPERIMENTAL
|
|
*
|
|
* WARNING: this function is experimental and may change the returned value
|
|
* at any time until labelled as non-experimental
|
|
*
|
|
* @param string $trigger name of trigger that should be used in method
|
|
* @return mixed data array on success, a MDB2 error on failure
|
|
* @access public
|
|
*/
|
|
function getTriggerDefinition($trigger)
|
|
{
|
|
$db = $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
|
|
$query = 'SELECT trigger_name,
|
|
table_name,
|
|
trigger_body,
|
|
trigger_type,
|
|
triggering_event trigger_event,
|
|
description trigger_comment,
|
|
1 trigger_enabled,
|
|
when_clause
|
|
FROM user_triggers
|
|
WHERE trigger_name = \''. strtoupper($trigger).'\'';
|
|
$types = array(
|
|
'trigger_name' => 'text',
|
|
'table_name' => 'text',
|
|
'trigger_body' => 'text',
|
|
'trigger_type' => 'text',
|
|
'trigger_event' => 'text',
|
|
'trigger_comment' => 'text',
|
|
'trigger_enabled' => 'boolean',
|
|
'when_clause' => 'text',
|
|
);
|
|
$result = $db->queryRow($query, $types, MDB2_FETCHMODE_ASSOC);
|
|
if (MDB2::isError($result)) {
|
|
return $result;
|
|
}
|
|
if (!empty($result['trigger_type'])) {
|
|
//$result['trigger_type'] = array_shift(explode(' ', $result['trigger_type']));
|
|
$result['trigger_type'] = preg_replace('/(\S+).*/', '\\1', $result['trigger_type']);
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ tableInfo()
|
|
|
|
/**
|
|
* Returns information about a table or a result set
|
|
*
|
|
* NOTE: only supports 'table' and 'flags' if <var>$result</var>
|
|
* is a table name.
|
|
*
|
|
* NOTE: flags won't contain index information.
|
|
*
|
|
* @param object|string $result MDB2_result object from a query or a
|
|
* string containing the name of a table.
|
|
* While this also accepts a query result
|
|
* resource identifier, this behavior is
|
|
* deprecated.
|
|
* @param int $mode a valid tableInfo mode
|
|
*
|
|
* @return array an associative array with the information requested.
|
|
* A MDB2_Error object on failure.
|
|
*
|
|
* @see MDB2_Driver_Common::tableInfo()
|
|
*/
|
|
function tableInfo($result, $mode = null)
|
|
{
|
|
if (is_string($result)) {
|
|
return parent::tableInfo($result, $mode);
|
|
}
|
|
|
|
$db = $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
|
|
$resource = MDB2::isResultCommon($result) ? $result->getResource() : $result;
|
|
if (!is_resource($resource)) {
|
|
return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|
'Could not generate result resource', __FUNCTION__);
|
|
}
|
|
|
|
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
|
|
if ($db->options['field_case'] == CASE_LOWER) {
|
|
$case_func = 'strtolower';
|
|
} else {
|
|
$case_func = 'strtoupper';
|
|
}
|
|
} else {
|
|
$case_func = 'strval';
|
|
}
|
|
|
|
$count = @OCINumCols($resource);
|
|
$res = array();
|
|
|
|
if ($mode) {
|
|
$res['num_fields'] = $count;
|
|
}
|
|
|
|
$db->loadModule('Datatype', null, true);
|
|
for ($i = 0; $i < $count; $i++) {
|
|
$column = array(
|
|
'table' => '',
|
|
'name' => $case_func(@OCIColumnName($resource, $i+1)),
|
|
'type' => @OCIColumnType($resource, $i+1),
|
|
'length' => @OCIColumnSize($resource, $i+1),
|
|
'flags' => '',
|
|
);
|
|
$res[$i] = $column;
|
|
$res[$i]['mdb2type'] = $db->datatype->mapNativeDatatype($res[$i]);
|
|
if ($mode & MDB2_TABLEINFO_ORDER) {
|
|
$res['order'][$res[$i]['name']] = $i;
|
|
}
|
|
if ($mode & MDB2_TABLEINFO_ORDERTABLE) {
|
|
$res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
|
|
}
|
|
}
|
|
return $res;
|
|
}
|
|
}
|
|
?>
|