forked from GNUsocial/gnu-social
591 lines
25 KiB
PHP
591 lines
25 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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// | Author: 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 InterbaseBase driver for the reverse engineering module
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*
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* @package MDB2
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* @category Database
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* @author Lorenzo Alberton <l.alberton@quipo.it>
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*/
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class MDB2_Driver_Reverse_ibase extends MDB2_Driver_Reverse_Common
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{
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/**
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* Array for converting constant values to text values
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* @var array
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* @access public
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*/
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var $types = array(
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7 => 'smallint',
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8 => 'integer',
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9 => 'quad',
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10 => 'float',
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11 => 'd_float',
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12 => 'date', //dialect 3 DATE
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13 => 'time',
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14 => 'char',
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16 => 'int64',
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27 => 'double',
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35 => 'timestamp', //DATE in older versions
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37 => 'varchar',
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40 => 'cstring',
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261 => 'blob',
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);
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/**
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* Array for converting constant values to text values
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* @var array
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* @access public
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*/
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var $subtypes = array(
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//char subtypes
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14 => array(
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0 => 'unspecified',
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1 => 'fixed', //BINARY data
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),
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//blob subtypes
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261 => array(
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0 => 'unspecified',
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1 => 'text',
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2 => 'BLR', //Binary Language Representation
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3 => 'access control list',
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4 => 'reserved for future use',
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5 => 'encoded description of a table\'s current metadata',
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6 => 'description of multi-database transaction that finished irregularly',
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),
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//smallint subtypes
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7 => array(
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0 => 'RDB$FIELD_TYPE',
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1 => 'numeric',
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2 => 'decimal',
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),
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//integer subtypes
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8 => array(
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0 => 'RDB$FIELD_TYPE',
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1 => 'numeric',
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2 => 'decimal',
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),
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//int64 subtypes
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16 => array(
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0 => 'RDB$FIELD_TYPE',
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1 => 'numeric',
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2 => 'decimal',
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),
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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 $result;
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}
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list($schema, $table) = $this->splitTableSchema($table_name);
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$table = $db->quote(strtoupper($table), 'text');
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$field_name = $db->quote(strtoupper($field_name), 'text');
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$query = "SELECT RDB\$RELATION_FIELDS.RDB\$FIELD_NAME AS name,
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RDB\$FIELDS.RDB\$FIELD_LENGTH AS \"length\",
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RDB\$FIELDS.RDB\$FIELD_PRECISION AS \"precision\",
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(RDB\$FIELDS.RDB\$FIELD_SCALE * -1) AS \"scale\",
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RDB\$FIELDS.RDB\$FIELD_TYPE AS field_type_code,
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RDB\$FIELDS.RDB\$FIELD_SUB_TYPE AS field_sub_type_code,
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RDB\$RELATION_FIELDS.RDB\$DESCRIPTION AS description,
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RDB\$RELATION_FIELDS.RDB\$NULL_FLAG AS null_flag,
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RDB\$FIELDS.RDB\$DEFAULT_SOURCE AS default_source,
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RDB\$CHARACTER_SETS.RDB\$CHARACTER_SET_NAME AS \"charset\",
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RDB\$COLLATIONS.RDB\$COLLATION_NAME AS \"collation\"
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FROM RDB\$FIELDS
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LEFT JOIN RDB\$RELATION_FIELDS ON RDB\$FIELDS.RDB\$FIELD_NAME = RDB\$RELATION_FIELDS.RDB\$FIELD_SOURCE
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LEFT JOIN RDB\$CHARACTER_SETS ON RDB\$FIELDS.RDB\$CHARACTER_SET_ID = RDB\$CHARACTER_SETS.RDB\$CHARACTER_SET_ID
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LEFT JOIN RDB\$COLLATIONS ON RDB\$FIELDS.RDB\$COLLATION_ID = RDB\$COLLATIONS.RDB\$COLLATION_ID
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WHERE UPPER(RDB\$RELATION_FIELDS.RDB\$RELATION_NAME)=$table
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AND UPPER(RDB\$RELATION_FIELDS.RDB\$FIELD_NAME)=$field_name;";
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$column = $db->queryRow($query, null, MDB2_FETCHMODE_ASSOC);
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if (MDB2::isError($column)) {
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return $column;
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}
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if (empty($column)) {
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return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
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'it was not specified an existing table column', __FUNCTION__);
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}
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$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($column['name']);
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}
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}
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$column['type'] = array_key_exists((int)$column['field_type_code'], $this->types)
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? $this->types[(int)$column['field_type_code']] : 'undefined';
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if ($column['field_sub_type_code']
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&& array_key_exists((int)$column['field_type_code'], $this->subtypes)
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&& array_key_exists($column['field_sub_type_code'], $this->subtypes[(int)$column['field_type_code']])
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) {
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$column['field_sub_type'] = $this->subtypes[(int)$column['field_type_code']][$column['field_sub_type_code']];
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} else {
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$column['field_sub_type'] = null;
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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 = !empty($column['null_flag']);
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$default = $column['default_source'];
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if ((null === $default) && $notnull) {
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$default = ($types[0] == 'integer') ? 0 : '';
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}
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$definition[0] = array(
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'notnull' => $notnull,
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'nativetype' => $column['type'],
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'charset' => $column['charset'],
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'collation' => $column['collation'],
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);
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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 (false !== $default) {
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$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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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, $format_index_name = true)
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{
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$db = $this->getDBInstance();
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if (MDB2::isError($db)) {
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return $db;
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}
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list($schema, $table) = $this->splitTableSchema($table_name);
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$table = $db->quote(strtoupper($table), 'text');
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$query = "SELECT RDB\$INDEX_SEGMENTS.RDB\$FIELD_NAME AS field_name,
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RDB\$INDICES.RDB\$DESCRIPTION AS description,
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(RDB\$INDEX_SEGMENTS.RDB\$FIELD_POSITION + 1) AS field_position
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FROM RDB\$INDEX_SEGMENTS
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LEFT JOIN RDB\$INDICES ON RDB\$INDICES.RDB\$INDEX_NAME = RDB\$INDEX_SEGMENTS.RDB\$INDEX_NAME
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LEFT JOIN RDB\$RELATION_CONSTRAINTS ON RDB\$RELATION_CONSTRAINTS.RDB\$INDEX_NAME = RDB\$INDEX_SEGMENTS.RDB\$INDEX_NAME
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WHERE UPPER(RDB\$INDICES.RDB\$RELATION_NAME)=$table
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AND UPPER(RDB\$INDICES.RDB\$INDEX_NAME)=%s
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AND RDB\$RELATION_CONSTRAINTS.RDB\$CONSTRAINT_TYPE IS NULL
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ORDER BY RDB\$INDEX_SEGMENTS.RDB\$FIELD_POSITION";
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$index_name_mdb2 = $db->quote(strtoupper($db->getIndexName($index_name)), 'text');
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$result = $db->queryRow(sprintf($query, $index_name_mdb2));
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if (!MDB2::isError($result) && (null !== $result)) {
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// apply 'idxname_format' only if the query succeeded, otherwise
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// fallback to the given $index_name, without transformation
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$index_name = $index_name_mdb2;
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} else {
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$index_name = $db->quote(strtoupper($index_name), 'text');
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}
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$result = $db->query(sprintf($query, $index_name));
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if (MDB2::isError($result)) {
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return $result;
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}
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$definition = array();
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while (is_array($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC))) {
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$row = array_change_key_case($row, CASE_LOWER);
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$column_name = $row['field_name'];
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if ($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['field_position'],
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);
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/*
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if (!empty($row['collation'])) {
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$definition['fields'][$column_name]['sorting'] = ($row['collation'] == 'A'
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? 'ascending' : 'descending');
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}
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*/
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}
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$result->free();
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if (empty($definition)) {
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return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
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'it was not specified an existing table index', __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 $db;
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}
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list($schema, $table) = $this->splitTableSchema($table_name);
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$table = $db->quote(strtoupper($table), 'text');
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$query = "SELECT rc.RDB\$CONSTRAINT_NAME,
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s.RDB\$FIELD_NAME AS field_name,
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CASE WHEN rc.RDB\$CONSTRAINT_TYPE = 'PRIMARY KEY' THEN 1 ELSE 0 END AS \"primary\",
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CASE WHEN rc.RDB\$CONSTRAINT_TYPE = 'FOREIGN KEY' THEN 1 ELSE 0 END AS \"foreign\",
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CASE WHEN rc.RDB\$CONSTRAINT_TYPE = 'UNIQUE' THEN 1 ELSE 0 END AS \"unique\",
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CASE WHEN rc.RDB\$CONSTRAINT_TYPE = 'CHECK' THEN 1 ELSE 0 END AS \"check\",
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i.RDB\$DESCRIPTION AS description,
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CASE WHEN rc.RDB\$DEFERRABLE = 'NO' THEN 0 ELSE 1 END AS deferrable,
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CASE WHEN rc.RDB\$INITIALLY_DEFERRED = 'NO' THEN 0 ELSE 1 END AS initiallydeferred,
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refc.RDB\$UPDATE_RULE AS onupdate,
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refc.RDB\$DELETE_RULE AS ondelete,
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refc.RDB\$MATCH_OPTION AS \"match\",
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i2.RDB\$RELATION_NAME AS references_table,
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s2.RDB\$FIELD_NAME AS references_field,
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(s.RDB\$FIELD_POSITION + 1) AS field_position
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FROM RDB\$INDEX_SEGMENTS s
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LEFT JOIN RDB\$INDICES i ON i.RDB\$INDEX_NAME = s.RDB\$INDEX_NAME
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LEFT JOIN RDB\$RELATION_CONSTRAINTS rc ON rc.RDB\$INDEX_NAME = s.RDB\$INDEX_NAME
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LEFT JOIN RDB\$REF_CONSTRAINTS refc ON rc.RDB\$CONSTRAINT_NAME = refc.RDB\$CONSTRAINT_NAME
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LEFT JOIN RDB\$RELATION_CONSTRAINTS rc2 ON rc2.RDB\$CONSTRAINT_NAME = refc.RDB\$CONST_NAME_UQ
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LEFT JOIN RDB\$INDICES i2 ON i2.RDB\$INDEX_NAME = rc2.RDB\$INDEX_NAME
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LEFT JOIN RDB\$INDEX_SEGMENTS s2 ON i2.RDB\$INDEX_NAME = s2.RDB\$INDEX_NAME
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AND s.RDB\$FIELD_POSITION = s2.RDB\$FIELD_POSITION
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WHERE UPPER(i.RDB\$RELATION_NAME)=$table
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AND UPPER(rc.RDB\$CONSTRAINT_NAME)=%s
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AND rc.RDB\$CONSTRAINT_TYPE IS NOT NULL
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ORDER BY s.RDB\$FIELD_POSITION";
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$constraint_name_mdb2 = $db->quote(strtoupper($db->getIndexName($constraint_name)), 'text');
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$result = $db->queryRow(sprintf($query, $constraint_name_mdb2));
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if (!MDB2::isError($result) && (null !== $result)) {
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// apply 'idxname_format' only if the query succeeded, otherwise
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// fallback to the given $index_name, without transformation
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$constraint_name = $constraint_name_mdb2;
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} else {
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$constraint_name = $db->quote(strtoupper($constraint_name), 'text');
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}
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$result = $db->query(sprintf($query, $constraint_name));
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if (MDB2::isError($result)) {
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return $result;
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}
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$definition = array();
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while (is_array($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC))) {
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$row = array_change_key_case($row, CASE_LOWER);
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$column_name = $row['field_name'];
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if ($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['field_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['field_position']
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);
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}
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//collation?!?
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/*
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if (!empty($row['collation'])) {
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$definition['fields'][$field]['sorting'] = ($row['collation'] == 'A'
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? 'ascending' : 'descending');
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}
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*/
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$lastrow = $row;
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// otherwise $row is no longer usable on exit from loop
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}
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$result->free();
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if (empty($definition)) {
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return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
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$constraint_name . ' is not an existing table constraint', __FUNCTION__);
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}
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$definition['primary'] = (boolean)$lastrow['primary'];
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$definition['unique'] = (boolean)$lastrow['unique'];
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$definition['foreign'] = (boolean)$lastrow['foreign'];
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$definition['check'] = (boolean)$lastrow['check'];
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$definition['deferrable'] = (boolean)$lastrow['deferrable'];
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$definition['initiallydeferred'] = (boolean)$lastrow['initiallydeferred'];
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$definition['onupdate'] = $lastrow['onupdate'];
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$definition['ondelete'] = $lastrow['ondelete'];
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$definition['match'] = $lastrow['match'];
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return $definition;
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}
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// }}}
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// {{{ getTriggerDefinition()
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/**
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* Get the structure of a trigger into an array
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*
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* EXPERIMENTAL
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*
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* WARNING: this function is experimental and may change the returned value
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* at any time until labelled as non-experimental
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*
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* @param string $trigger name of trigger that should be used in method
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|
* @return mixed data array on success, a MDB2 error on failure
|
|
* @access public
|
|
*/
|
|
function getTriggerDefinition($trigger)
|
|
{
|
|
$db = $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
|
|
$trigger = $db->quote(strtoupper($trigger), 'text');
|
|
$query = "SELECT RDB\$TRIGGER_NAME AS trigger_name,
|
|
RDB\$RELATION_NAME AS table_name,
|
|
RDB\$TRIGGER_SOURCE AS trigger_body,
|
|
CASE RDB\$TRIGGER_TYPE
|
|
WHEN 1 THEN 'BEFORE'
|
|
WHEN 2 THEN 'AFTER'
|
|
WHEN 3 THEN 'BEFORE'
|
|
WHEN 4 THEN 'AFTER'
|
|
WHEN 5 THEN 'BEFORE'
|
|
WHEN 6 THEN 'AFTER'
|
|
END AS trigger_type,
|
|
CASE RDB\$TRIGGER_TYPE
|
|
WHEN 1 THEN 'INSERT'
|
|
WHEN 2 THEN 'INSERT'
|
|
WHEN 3 THEN 'UPDATE'
|
|
WHEN 4 THEN 'UPDATE'
|
|
WHEN 5 THEN 'DELETE'
|
|
WHEN 6 THEN 'DELETE'
|
|
END AS trigger_event,
|
|
CASE RDB\$TRIGGER_INACTIVE
|
|
WHEN 1 THEN 0 ELSE 1
|
|
END AS trigger_enabled,
|
|
RDB\$DESCRIPTION AS trigger_comment
|
|
FROM RDB\$TRIGGERS
|
|
WHERE UPPER(RDB\$TRIGGER_NAME)=$trigger";
|
|
$types = array(
|
|
'trigger_name' => 'text',
|
|
'table_name' => 'text',
|
|
'trigger_body' => 'clob',
|
|
'trigger_type' => 'text',
|
|
'trigger_event' => 'text',
|
|
'trigger_comment' => 'text',
|
|
'trigger_enabled' => 'boolean',
|
|
);
|
|
|
|
$def = $db->queryRow($query, $types, MDB2_FETCHMODE_ASSOC);
|
|
if (MDB2::isError($def)) {
|
|
return $def;
|
|
}
|
|
|
|
$clob = $def['trigger_body'];
|
|
if (!MDB2::isError($clob) && is_resource($clob)) {
|
|
$value = '';
|
|
while (!feof($clob)) {
|
|
$data = fread($clob, 8192);
|
|
$value.= $data;
|
|
}
|
|
$db->datatype->destroyLOB($clob);
|
|
$def['trigger_body'] = $value;
|
|
}
|
|
|
|
return $def;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ tableInfo()
|
|
|
|
/**
|
|
* Returns information about a table or a result set
|
|
*
|
|
* NOTE: only supports 'table' and 'flags' if <var>$result</var>
|
|
* is a table name.
|
|
*
|
|
* @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';
|
|
}
|
|
|
|
$count = @ibase_num_fields($resource);
|
|
$res = array();
|
|
|
|
if ($mode) {
|
|
$res['num_fields'] = $count;
|
|
}
|
|
|
|
$db->loadModule('Datatype', null, true);
|
|
for ($i = 0; $i < $count; $i++) {
|
|
$info = @ibase_field_info($resource, $i);
|
|
if (($pos = strpos($info['type'], '(')) !== false) {
|
|
$info['type'] = substr($info['type'], 0, $pos);
|
|
}
|
|
$res[$i] = array(
|
|
'table' => $case_func($info['relation']),
|
|
'name' => $case_func($info['name']),
|
|
'type' => $info['type'],
|
|
'length' => $info['length'],
|
|
'flags' => '',
|
|
);
|
|
$mdb2type_info = $db->datatype->mapNativeDatatype($res[$i]);
|
|
if (MDB2::isError($mdb2type_info)) {
|
|
return $mdb2type_info;
|
|
}
|
|
$res[$i]['mdb2type'] = $mdb2type_info[0][0];
|
|
if ($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;
|
|
}
|
|
}
|
|
?>
|