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<?php
// +----------------------------------------------------------------------+
// | PHP versions 4 and 5 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1998-2006 Manuel Lemos, Tomas V.V.Cox, |
// | Stig. S. Bakken, Lukas Smith, Frank M. Kromann |
// | 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: Lukas Smith <smith@pooteeweet.org> |
// +----------------------------------------------------------------------+
//
// $Id: oci8.php,v 1.62 2007/03/29 18:18:06 quipo Exp $
//
require_once 'MDB2/Driver/Reverse/Common.php';
/**
* MDB2 Oracle driver for the schema reverse engineering module
*
* @package MDB2
* @category Database
* @author Lukas Smith <smith@dybnet.de>
*/
class MDB2_Driver_Reverse_oci8 extends MDB2_Driver_Reverse_Common
{
// {{{ 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;
}
$query = 'SELECT column_name name, data_type "type", nullable, data_default "default"';
$query.= ', COALESCE(data_precision, data_length) "length", data_scale "scale"';
$query.= ' FROM user_tab_columns';
$query.= ' WHERE (table_name='.$db->quote($table, 'text').' OR table_name='.$db->quote(strtoupper($table), 'text').')';
$query.= ' AND (column_name='.$db->quote($field_name, 'text').' OR column_name='.$db->quote(strtoupper($field_name), 'text').')';
$query.= ' ORDER BY column_id';
$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']);
}
}
$mapped_datatype = $db->datatype->mapNativeDatatype($column);
if (PEAR::IsError($mapped_datatype)) {
return $mapped_datatype;
}
list($types, $length, $unsigned, $fixed) = $mapped_datatype;
$notnull = false;
if (!empty($column['nullable']) && $column['nullable'] == 'N') {
$notnull = true;
}
$default = false;
if (array_key_exists('default', $column)) {
$default = $column['default'];
if ($default === 'NULL') {
$default = null;
}
if (is_null($default) && $notnull) {
$default = '';
}
}
$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'] = $type;
}
if ($type == 'integer') {
$query = "SELECT DISTINCT name
FROM all_source
WHERE type='TRIGGER'
AND UPPER(text) like '%ON ". strtoupper($db->escape($table, 'text')) ."%'";
$result = $db->query($query);
if (!PEAR::isError($result)) {
while ($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC)) {
$row = array_change_key_case($row, CASE_LOWER);
$trquery = 'SELECT text
FROM all_source
WHERE name=' . $db->quote($row['name'],'text')
. ' ORDER BY line';
$triggersth = $db->query($trquery);
$triggerstr = '';
while ($triggerline = $triggersth->fetchRow(MDB2_FETCHMODE_ASSOC)) {
$triggerline = array_change_key_case($triggerline,CASE_LOWER);
$triggerstr .= $triggerline['text']. ' ';
}
$matches = array();
if (preg_match('/.*\W(.+)\.nextval into :NEW\.'.$field_name.' FROM dual/i', $triggerstr, $matches)) {
// we reckon it's an autoincrementing trigger on field_name
// there will be other pcre patterns needed here for other ways of mimicking auto_increment in ora.
$definition[0]['autoincrement'] = $matches[1];
}
}
}
}
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)
{
$db =& $this->getDBInstance();
if (PEAR::isError($db)) {
return $db;
}
$query = "SELECT column_name,
column_position,
descend
FROM user_ind_columns
WHERE (table_name=".$db->quote($table, 'text').' OR table_name='.$db->quote(strtoupper($table), 'text').')
AND (index_name=%s OR index_name=%s)
AND index_name NOT IN (
SELECT constraint_name
FROM dba_constraints
WHERE (table_name = '.$db->quote($table, 'text').' OR table_name='.$db->quote(strtoupper($table), 'text').")
AND constraint_type in ('P','U')
)
ORDER BY column_position";
$index_name_mdb2 = $db->getIndexName($index_name);
$sql = sprintf($query,
$db->quote($index_name_mdb2, 'text'),
$db->quote(strtoupper($index_name_mdb2), 'text')
);
$result = $db->queryRow($sql);
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;
}
$sql = sprintf($query,
$db->quote($index_name, 'text'),
$db->quote(strtoupper($index_name), 'text')
);
$result = $db->query($sql);
if (PEAR::isError($result)) {
return $result;
}
$definition = array();
while ($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC)) {
$row = array_change_key_case($row, CASE_LOWER);
$column_name = $row['column_name'];
if ($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)$row['column_position'],
);
if (!empty($row['descend'])) {
$definition['fields'][$column_name]['sorting'] =
($row['descend'] == 'ASC' ? 'ascending' : 'descending');
}
}
$result->free();
if (empty($definition['fields'])) {
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;
}
$query = 'SELECT alc.constraint_name,
alc.constraint_type,
alc.search_condition,
alc.r_constraint_name,
alc.search_condition,
cols.column_name,
cols.position
FROM all_constraints alc,
all_cons_columns cols
WHERE (alc.constraint_name=%s OR alc.constraint_name=%s)
AND alc.constraint_name = cols.constraint_name
AND alc.owner = '.$db->quote(strtoupper($db->dsn['username']), 'text');
if (!empty($table)) {
$query.= ' AND (alc.table_name='.$db->quote($table, 'text').' OR alc.table_name='.$db->quote(strtoupper($table), 'text').')';
}
if (strtolower($constraint_name) != 'primary') {
$constraint_name_mdb2 = $db->getIndexName($constraint_name);
$sql = sprintf($query,
$db->quote($constraint_name_mdb2, 'text'),
$db->quote(strtoupper($constraint_name_mdb2), 'text')
);
$result = $db->queryRow($sql);
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;
}
}
$sql = sprintf($query,
$db->quote($constraint_name, 'text'),
$db->quote(strtoupper($constraint_name), 'text')
);
$result = $db->query($sql);
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 = $row['column_name'];
if ($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['position']
);
$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['constraint_type'] === 'P') {
$definition['primary'] = true;
} elseif ($lastrow['constraint_type'] === 'U') {
$definition['unique'] = true;
} elseif ($lastrow['constraint_type'] === 'R') {
$definition['foreign'] = $lastrow['r_constraint_name'];
} elseif ($lastrow['constraint_type'] === 'C') {
$definition['check'] = true;
// pattern match constraint for check constraint values into enum-style output:
$enumregex = '/'.$lastrow['column_name'].' in \((.+?)\)/i';
if (preg_match($enumregex, $lastrow['search_condition'], $rangestr)) {
$definition['fields'][$column_name] = array();
$allowed = explode(',', $rangestr[1]);
foreach ($allowed as $val) {
$val = trim($val);
$val = preg_replace('/^\'/', '', $val);
$val = preg_replace('/\'$/', '', $val);
array_push($definition['fields'][$column_name], $val);
}
}
}
return $definition;
}
// }}}
// {{{ getSequenceDefinition()
/**
* Get the structure of a sequence into an array
*
* @param string $sequence name of sequence that should be used in method
* @return mixed data array on success, a MDB2 error on failure
* @access public
*/
function getSequenceDefinition($sequence)
{
$db =& $this->getDBInstance();
if (PEAR::isError($db)) {
return $db;
}
$sequence_name = $db->getSequenceName($sequence);
$query = 'SELECT last_number FROM user_sequences';
$query.= ' WHERE sequence_name='.$db->quote($sequence_name, 'text');
$query.= ' OR sequence_name='.$db->quote(strtoupper($sequence_name), 'text');
$start = $db->queryOne($query, 'integer');
if (PEAR::isError($start)) {
return $start;
}
$definition = array();
if ($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 =& $this->getDBInstance();
if (PEAR::isError($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, $types, MDB2_FETCHMODE_ASSOC);
if (PEAR::isError($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 =& $this->getDBInstance();
if (PEAR::isError($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';
}
$count = @OCINumCols($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;
}
}
?>
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