phplibrary/creole/drivers/pgsql/metadata/PgSQLDatabaseInfo.php
2016-06-29 18:51:32 +03:00

113 lines
4 KiB
PHP

<?php
/*
* $Id: PgSQLDatabaseInfo.php,v 1.11 2006/01/17 19:44:40 hlellelid Exp $
*
* 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 COPYRIGHT
* OWNER 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.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information please see
* <http://creole.phpdb.org>.
*/
require_once 'creole/metadata/DatabaseInfo.php';
/**
* MySQL implementation of DatabaseInfo.
*
* @author Hans Lellelid <hans@xmpl.org>
* @version $Revision: 1.11 $
* @package creole.drivers.pgsql.metadata
*/
class PgSQLDatabaseInfo extends DatabaseInfo {
/**
* @throws SQLException
* @return void
*/
protected function initTables()
{
include_once 'creole/drivers/pgsql/metadata/PgSQLTableInfo.php';
// Get Database Version
// TODO: www.php.net/pg_version
$result = pg_query ($this->conn->getResource(), "SELECT version() as ver");
if (!$result)
{
throw new SQLException ("Failed to select database version");
} // if (!$result)
$row = pg_fetch_assoc ($result, 0);
$arrVersion = sscanf ($row['ver'], '%*s %d.%d');
$version = sprintf ("%d.%d", $arrVersion[0], $arrVersion[1]);
// Clean up
$arrVersion = null;
$row = null;
pg_free_result ($result);
$result = null;
$result = pg_query($this->conn->getResource(), "SELECT c.oid,
case when n.nspname='public' then c.relname else n.nspname||'.'||c.relname end as relname
FROM pg_class c join pg_namespace n on (c.relnamespace=n.oid)
WHERE c.relkind = 'r'
AND n.nspname NOT IN ('information_schema','pg_catalog')
AND n.nspname NOT LIKE 'pg_temp%'
AND n.nspname NOT LIKE 'pg_toast%'
ORDER BY relname");
if (!$result) {
throw new SQLException("Could not list tables", pg_last_error($this->dblink));
}
while ($row = pg_fetch_assoc($result)) {
$this->tables[strtoupper($row['relname'])] = new PgSQLTableInfo($this, $row['relname'], $version, $row['oid']);
}
$this->tablesLoaded = true;
}
/**
* PgSQL sequences.
*
* @return void
* @throws SQLException
*/
protected function initSequences()
{
$this->sequences = array();
$result = pg_query($this->conn->getResource(), "SELECT c.oid,
case when n.nspname='public' then c.relname else n.nspname||'.'||c.relname end as relname
FROM pg_class c join pg_namespace n on (c.relnamespace=n.oid)
WHERE c.relkind = 'S'
AND n.nspname NOT IN ('information_schema','pg_catalog')
AND n.nspname NOT LIKE 'pg_temp%'
AND n.nspname NOT LIKE 'pg_toast%'
ORDER BY name");
if (!$result) {
throw new SQLException("Could not list sequences", pg_last_error($this->dblink));
}
while ($row = pg_fetch_assoc($result)) {
// FIXME -- decide what info we need for sequences & then create a SequenceInfo object (if needed)
$obj = new stdClass;
$obj->name = $row['relname'];
$obj->oid = $row['oid'];
$this->sequences[strtoupper($row['relname'])] = $obj;
}
}
}