Source for file pgsql.php
Documentation is available at pgsql.php
// +----------------------------------------------------------------------+
// | PHP versions 4 and 5 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1998-2006 Manuel Lemos, Tomas V.V.Cox, |
// | Stig. S. Bakken, Lukas Smith |
// | 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 |
// | 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: Paul Cooper <pgc@ucecom.com> |
// +----------------------------------------------------------------------+
// $Id: pgsql.php,v 1.49 2006/08/12 15:44:03 lsmith Exp $
require_once 'MDB2/Driver/Reverse/Common.php';
* MDB2 PostGreSQL driver for the schema reverse engineering module
* @author Paul Cooper <pgc@ucecom.com>
// {{{ getTableFieldDefinition()
* Get the stucture 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
$db = & $this->getDBInstance ();
if (PEAR ::isError ($db)) {
$result = $db->loadModule ('Datatype', null , true );
if (PEAR ::isError ($result)) {
a.attname AS name, t.typname AS type, a.attlen AS length, a.attnotnull,
a.atttypmod, a.atthasdef,
(SELECT substring(pg_get_expr(d.adbin, d.adrelid) for 128)
WHERE d.adrelid = a.attrelid AND d.adnum = a.attnum AND a.atthasdef) as default
FROM pg_attribute a, pg_class c, pg_type t
WHERE c.relname = ". $db->quote ($table, 'text'). "
AND a.attname = ". $db->quote ($field_name, 'text'). "
$column = $db->queryRow ($query, null , MDB2_FETCHMODE_ASSOC );
if (PEAR ::isError ($column)) {
return $db->raiseError (MDB2_ERROR_NOT_FOUND , null , null ,
'it was not specified an existing table column', __FUNCTION__ );
list ($types, $length, $unsigned, $fixed) = $db->datatype ->mapNativeDatatype ($column);
if (!empty ($column['attnotnull']) && $column['attnotnull'] == 't') {
if ($column['atthasdef'] === 't'
&& !preg_match("/nextval\('([^']+)'/", $column['default'])
$default = $column['default']; #substr($column['adsrc'], 1, -1);
if (is_null($default) && $notnull) {
if (preg_match("/nextval\('([^']+)'/", $column['default'], $nextvals)) {
$definition[0 ] = array ('notnull' => $notnull, 'nativetype' => $column['type']);
$definition[0 ]['length'] = $length;
$definition[0 ]['unsigned'] = $unsigned;
$definition[0 ]['fixed'] = $fixed;
if ($default !== false ) {
$definition[0 ]['default'] = $default;
if ($autoincrement !== false ) {
$definition[0 ]['autoincrement'] = $autoincrement;
foreach ($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;
// {{{ getTableIndexDefinition()
* Get the stucture 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
$db = & $this->getDBInstance ();
if (PEAR ::isError ($db)) {
$index_name = $db->getIndexName ($index_name);
$query = 'SELECT relname, indkey FROM pg_index, pg_class';
$query.= ' WHERE pg_class.oid = pg_index.indexrelid';
$query.= " AND indisunique != 't' AND indisprimary != 't'";
$query.= ' AND pg_class.relname = '. $db->quote ($index_name, 'text');
$row = $db->queryRow ($query, null , MDB2_FETCHMODE_ASSOC );
if (PEAR ::isError ($row)) {
return $db->raiseError (MDB2_ERROR_NOT_FOUND , null , null ,
'it was not specified an existing table index', __FUNCTION__ );
$db->loadModule ('Manager', null , true );
$columns = $db->manager ->listTableFields ($table);
$index_column_numbers = explode(' ', $row['indkey']);
foreach ($index_column_numbers as $number) {
$definition['fields'][$columns[($number - 1 )]] = array ('sorting' => 'ascending');
// {{{ getTableConstraintDefinition()
* Get the stucture of a constraint 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
$db = & $this->getDBInstance ();
if (PEAR ::isError ($db)) {
$index_name = $db->getIndexName ($index_name);
$query = 'SELECT relname, indisunique, indisprimary, indkey FROM pg_index, pg_class';
$query.= ' WHERE pg_class.oid = pg_index.indexrelid';
$query.= " AND (indisunique = 't' OR indisprimary = 't')";
$query.= ' AND pg_class.relname = '. $db->quote ($index_name, 'text');
$row = $db->queryRow ($query, null , MDB2_FETCHMODE_ASSOC );
if (PEAR ::isError ($row)) {
return $db->raiseError (MDB2_ERROR_NOT_FOUND , null , null ,
'it was not specified an existing table constraint', __FUNCTION__ );
$db->loadModule ('Manager', null , true );
$columns = $db->manager ->listTableFields ($table);
if ($row['indisprimary'] == 't') {
$definition['primary'] = true;
} elseif ($row['indisunique'] == 't') {
$definition['unique'] = true;
$index_column_numbers = explode(' ', $row['indkey']);
foreach ($index_column_numbers as $number) {
$definition['fields'][$columns[($number - 1 )]] = array ('sorting' => 'ascending');
* Returns information about a table or a result set
* NOTE: only supports 'table' and 'flags' if <var>$result</var>
* @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
* @param int $mode a valid tableInfo mode
* @return array an associative array with the information requested.
* A MDB2_Error object on failure.
* @see MDB2_Driver_Common::tableInfo()
return parent ::tableInfo ($result, $mode);
$db = & $this->getDBInstance ();
if (PEAR ::isError ($db)) {
$id = MDB2 ::isResultCommon ($result) ? $result->getResource () : $result;
return $db->raiseError (MDB2_ERROR_NEED_MORE_DATA , null , null ,
'Could not generate result ressource', __FUNCTION__ );
if ($db->options ['portability'] & MDB2_PORTABILITY_FIX_CASE ) {
if ($db->options ['field_case'] == CASE_LOWER ) {
$case_func = 'strtolower';
$case_func = 'strtoupper';
$count = @pg_num_fields ($id);
$res['num_fields'] = $count;
$db->loadModule ('Datatype', null , true );
for ($i = 0; $i < $count; $i++ ) {
'name' => $case_func(@pg_field_name ($id, $i)),
'type' => @pg_field_type ($id, $i),
'length' => @pg_field_size ($id, $i),
$mdb2type_info = $db->datatype ->mapNativeDatatype ($res[$i]);
if (PEAR ::isError ($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;
Documentation generated on Mon, 11 Mar 2019 14:44:01 -0400 by phpDocumentor 1.4.4. PEAR Logo Copyright © PHP Group 2004.
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