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<?php
// +----------------------------------------------------------------------+
// | PHP versions 4 and 5 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1998-2007 Manuel Lemos, Tomas V.V.Cox, |
// | Stig. S. Bakken, Lukas Smith, Frank M. Kromann, Lorenzo Alberton |
// | All rights reserved. |
// +----------------------------------------------------------------------+
// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB |
// | API as well as database abstraction for PHP applications. |
// | This LICENSE is in the BSD license style. |
// | |
// | Redistribution and use in source and binary forms, with or without |
// | modification, are permitted provided that the following conditions |
// | are met: |
// | |
// | Redistributions of source code must retain the above copyright |
// | notice, this list of conditions and the following disclaimer. |
// | |
// | Redistributions in binary form must reproduce the above copyright |
// | notice, this list of conditions and the following disclaimer in the |
// | documentation and/or other materials provided with the distribution. |
// | |
// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
// | Lukas Smith nor the names of his contributors may be used to endorse |
// | or promote products derived from this software without specific prior|
// | written permission. |
// | |
// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
// | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
// | POSSIBILITY OF SUCH DAMAGE. |
// +----------------------------------------------------------------------+
// | Author: Lorenzo Alberton <l.alberton@quipo.it> |
// +----------------------------------------------------------------------+
//
// $Id: ibase.php,v 1.70 2007/05/03 12:34:41 quipo Exp $
//
require_once 'MDB2/Driver/Reverse/Common.php';
/**
* MDB2 InterbaseBase driver for the reverse engineering module
*
* @package MDB2
* @category Database
* @author Lorenzo Alberton <l.alberton@quipo.it>
*/
class MDB2_Driver_Reverse_ibase extends MDB2_Driver_Reverse_Common
{
/**
* Array for converting constant values to text values
* @var array
* @access public
*/
var $types = array(
7 => 'smallint',
8 => 'integer',
9 => 'quad',
10 => 'float',
11 => 'd_float',
12 => 'date', //dialect 3 DATE
13 => 'time',
14 => 'char',
16 => 'int64',
27 => 'double',
35 => 'timestamp', //DATE in older versions
37 => 'varchar',
40 => 'cstring',
261 => 'blob',
);
/**
* Array for converting constant values to text values
* @var array
* @access public
*/
var $subtypes = array(
//char subtypes
14 => array(
0 => 'unspecified',
1 => 'fixed', //BINARY data
),
//blob subtypes
261 => array(
0 => 'unspecified',
1 => 'text',
2 => 'BLR', //Binary Language Representation
3 => 'access control list',
4 => 'reserved for future use',
5 => 'encoded description of a table\'s current metadata',
6 => 'description of multi-database transaction that finished irregularly',
),
//smallint subtypes
7 => array(
0 => 'RDB$FIELD_TYPE',
1 => 'numeric',
2 => 'decimal',
),
//integer subtypes
8 => array(
0 => 'RDB$FIELD_TYPE',
1 => 'numeric',
2 => 'decimal',
),
//int64 subtypes
16 => array(
0 => 'RDB$FIELD_TYPE',
1 => 'numeric',
2 => 'decimal',
),
);
// {{{ getTableFieldDefinition()
/**
* Get the structure of a field into an array
*
* @param string $table name of table that should be used in method
* @param string $field_name name of field that should be used in method
* @return mixed data array on success, a MDB2 error on failure
* @access public
*/
function getTableFieldDefinition($table, $field_name)
{
$db =& $this->getDBInstance();
if (PEAR::isError($db)) {
return $db;
}
$result = $db->loadModule('Datatype', null, true);
if (PEAR::isError($result)) {
return $result;
}
$table = $db->quote(strtoupper($table), 'text');
$field_name = $db->quote(strtoupper($field_name), 'text');
$query = "SELECT RDB\$RELATION_FIELDS.RDB\$FIELD_NAME AS name,
RDB\$FIELDS.RDB\$FIELD_LENGTH AS \"length\",
RDB\$FIELDS.RDB\$FIELD_PRECISION AS \"precision\",
(RDB\$FIELDS.RDB\$FIELD_SCALE * -1) AS \"scale\",
RDB\$FIELDS.RDB\$FIELD_TYPE AS field_type_code,
RDB\$FIELDS.RDB\$FIELD_SUB_TYPE AS field_sub_type_code,
RDB\$RELATION_FIELDS.RDB\$DESCRIPTION AS description,
RDB\$RELATION_FIELDS.RDB\$NULL_FLAG AS null_flag,
RDB\$FIELDS.RDB\$DEFAULT_SOURCE AS default_source
FROM RDB\$FIELDS
LEFT JOIN RDB\$RELATION_FIELDS ON RDB\$FIELDS.RDB\$FIELD_NAME = RDB\$RELATION_FIELDS.RDB\$FIELD_SOURCE
WHERE UPPER(RDB\$RELATION_FIELDS.RDB\$RELATION_NAME)=$table
AND UPPER(RDB\$RELATION_FIELDS.RDB\$FIELD_NAME)=$field_name;";
$column = $db->queryRow($query, null, MDB2_FETCHMODE_ASSOC);
if (PEAR::isError($column)) {
return $column;
}
if (empty($column)) {
return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
'it was not specified an existing table column', __FUNCTION__);
}
$column = array_change_key_case($column, CASE_LOWER);
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
if ($db->options['field_case'] == CASE_LOWER) {
$column['name'] = strtolower($column['name']);
} else {
$column['name'] = strtoupper($column['name']);
}
}
$column['type'] = array_key_exists((int)$column['field_type_code'], $this->types)
? $this->types[(int)$column['field_type_code']] : 'undefined';
if ($column['field_sub_type_code']
&& array_key_exists((int)$column['field_type_code'], $this->subtypes)
&& array_key_exists($column['field_sub_type_code'], $this->subtypes[(int)$column['field_type_code']])
) {
$column['field_sub_type'] = $this->subtypes[(int)$column['field_type_code']][$column['field_sub_type_code']];
} else {
$column['field_sub_type'] = null;
}
$mapped_datatype = $db->datatype->mapNativeDatatype($column);
if (PEAR::IsError($mapped_datatype)) {
return $mapped_datatype;
}
list($types, $length, $unsigned, $fixed) = $mapped_datatype;
$notnull = !empty($column['null_flag']);
$default = $column['default_source'];
if (is_null($default) && $notnull) {
$default = ($types[0] == 'integer') ? 0 : '';
}
$definition[0] = array('notnull' => $notnull, 'nativetype' => $column['type']);
if (!is_null($length)) {
$definition[0]['length'] = $length;
}
if (!is_null($unsigned)) {
$definition[0]['unsigned'] = $unsigned;
}
if (!is_null($fixed)) {
$definition[0]['fixed'] = $fixed;
}
if ($default !== false) {
$definition[0]['default'] = $default;
}
foreach ($types as $key => $type) {
$definition[$key] = $definition[0];
if ($type == 'clob' || $type == 'blob') {
unset($definition[$key]['default']);
}
$definition[$key]['type'] = $type;
$definition[$key]['mdb2type'] = $type;
}
return $definition;
}
// }}}
// {{{ getTableIndexDefinition()
/**
* Get the structure of an index into an array
*
* @param string $table name of table that should be used in method
* @param string $index_name name of index that should be used in method
* @return mixed data array on success, a MDB2 error on failure
* @access public
*/
function getTableIndexDefinition($table, $index_name, $format_index_name = true)
{
$db =& $this->getDBInstance();
if (PEAR::isError($db)) {
return $db;
}
$table = $db->quote(strtoupper($table), 'text');
$query = "SELECT RDB\$INDEX_SEGMENTS.RDB\$FIELD_NAME AS field_name,
RDB\$INDICES.RDB\$DESCRIPTION AS description,
(RDB\$INDEX_SEGMENTS.RDB\$FIELD_POSITION + 1) AS field_position
FROM RDB\$INDEX_SEGMENTS
LEFT JOIN RDB\$INDICES ON RDB\$INDICES.RDB\$INDEX_NAME = RDB\$INDEX_SEGMENTS.RDB\$INDEX_NAME
LEFT JOIN RDB\$RELATION_CONSTRAINTS ON RDB\$RELATION_CONSTRAINTS.RDB\$INDEX_NAME = RDB\$INDEX_SEGMENTS.RDB\$INDEX_NAME
WHERE UPPER(RDB\$INDICES.RDB\$RELATION_NAME)=$table
AND UPPER(RDB\$INDICES.RDB\$INDEX_NAME)=%s
AND RDB\$RELATION_CONSTRAINTS.RDB\$CONSTRAINT_TYPE IS NULL
ORDER BY RDB\$INDEX_SEGMENTS.RDB\$FIELD_POSITION";
$index_name_mdb2 = $db->quote(strtoupper($db->getIndexName($index_name)), 'text');
$result = $db->queryRow(sprintf($query, $index_name_mdb2));
if (!PEAR::isError($result) && !is_null($result)) {
// apply 'idxname_format' only if the query succeeded, otherwise
// fallback to the given $index_name, without transformation
$index_name = $index_name_mdb2;
} else {
$index_name = $db->quote(strtoupper($index_name), 'text');
}
$result = $db->query(sprintf($query, $index_name));
if (PEAR::isError($result)) {
return $result;
}
$definition = array();
while (is_array($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC))) {
$row = array_change_key_case($row, CASE_LOWER);
$column_name = $row['field_name'];
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
if ($db->options['field_case'] == CASE_LOWER) {
$column_name = strtolower($column_name);
} else {
$column_name = strtoupper($column_name);
}
}
$definition['fields'][$column_name] = array(
'position' => (int)$row['field_position'],
);
/*
if (!empty($row['collation'])) {
$definition['fields'][$column_name]['sorting'] = ($row['collation'] == 'A'
? 'ascending' : 'descending');
}
*/
}
$result->free();
if (empty($definition)) {
return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
'it was not specified an existing table index', __FUNCTION__);
}
return $definition;
}
// }}}
// {{{ getTableConstraintDefinition()
/**
* Get the structure of a constraint into an array
*
* @param string $table name of table that should be used in method
* @param string $constraint_name name of constraint that should be used in method
* @return mixed data array on success, a MDB2 error on failure
* @access public
*/
function getTableConstraintDefinition($table, $constraint_name)
{
$db =& $this->getDBInstance();
if (PEAR::isError($db)) {
return $db;
}
$table = $db->quote(strtoupper($table), 'text');
$query = "SELECT RDB\$INDEX_SEGMENTS.RDB\$FIELD_NAME AS field_name,
RDB\$INDICES.RDB\$UNIQUE_FLAG AS unique_flag,
RDB\$INDICES.RDB\$FOREIGN_KEY AS foreign_key,
RDB\$INDICES.RDB\$DESCRIPTION AS description,
RDB\$RELATION_CONSTRAINTS.RDB\$CONSTRAINT_TYPE AS constraint_type,
(RDB\$INDEX_SEGMENTS.RDB\$FIELD_POSITION + 1) AS field_position
FROM RDB\$INDEX_SEGMENTS
LEFT JOIN RDB\$INDICES ON RDB\$INDICES.RDB\$INDEX_NAME = RDB\$INDEX_SEGMENTS.RDB\$INDEX_NAME
LEFT JOIN RDB\$RELATION_CONSTRAINTS ON RDB\$RELATION_CONSTRAINTS.RDB\$INDEX_NAME = RDB\$INDEX_SEGMENTS.RDB\$INDEX_NAME
WHERE UPPER(RDB\$INDICES.RDB\$RELATION_NAME)=$table
AND UPPER(RDB\$INDICES.RDB\$INDEX_NAME)=%s
ORDER BY RDB\$INDEX_SEGMENTS.RDB\$FIELD_POSITION;";
$constraint_name_mdb2 = $db->quote(strtoupper($db->getIndexName($constraint_name)), 'text');
$result = $db->queryRow(sprintf($query, $constraint_name_mdb2));
if (!PEAR::isError($result) && !is_null($result)) {
// apply 'idxname_format' only if the query succeeded, otherwise
// fallback to the given $index_name, without transformation
$constraint_name = $constraint_name_mdb2;
} else {
$constraint_name = $db->quote(strtoupper($constraint_name), 'text');
}
$result = $db->query(sprintf($query, $constraint_name));
if (PEAR::isError($result)) {
return $result;
}
$definition = array();
while (is_array($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC))) {
$row = array_change_key_case($row, CASE_LOWER);
$column_name = $row['field_name'];
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
if ($db->options['field_case'] == CASE_LOWER) {
$column_name = strtolower($column_name);
} else {
$column_name = strtoupper($column_name);
}
}
$definition['fields'][$column_name] = array(
'position' => (int)$row['field_position']
);
//collation?!?
/*
if (!empty($row['collation'])) {
$definition['fields'][$field]['sorting'] = ($row['collation'] == 'A'
? 'ascending' : 'descending');
}
*/
$lastrow = $row;
// otherwise $row is no longer usable on exit from loop
}
$result->free();
if (empty($definition)) {
return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
$constraint_name . ' is not an existing table constraint', __FUNCTION__);
}
if (!$lastrow['unique_flag'] && !$lastrow['foreign_key']) {
return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
$constraint_name . ' is not an existing table constraint', __FUNCTION__);
}
if ($lastrow['constraint_type'] === 'PRIMARY KEY') {
$definition['primary'] = true;
} elseif ($lastrow['unique_flag']) {
$definition['unique'] = true;
} elseif ($lastrow['foreign_key']) {
$definition['foreign'] = true;
}
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 =& $this->getDBInstance();
if (PEAR::isError($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, $types, MDB2_FETCHMODE_ASSOC);
if (PEAR::isError($def)) {
return $def;
}
$clob = $def['trigger_body'];
if (!PEAR::isError($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 =& $this->getDBInstance();
if (PEAR::isError($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[$i]);
if (PEAR::isError($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;
}
}
?>
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