alias/class.dc.aliases.php

111 lines
2.6 KiB
PHP

<?php
# -- BEGIN LICENSE BLOCK ----------------------------------
#
# This file is part of Dotclear 2.
#
# Copyright (c) 2003-2008 Olivier Meunier and contributors
# Licensed under the GPL version 2.0 license.
# See LICENSE file or
# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
#
# -- END LICENSE BLOCK ------------------------------------
class dcAliases
{
protected $core;
protected $aliases;
public function __construct($core)
{
$this->core =& $core;
}
public function getAliases()
{
if (is_array($this->aliases)) {
return $this->aliases;
}
$this->aliases = array();
$sql = 'SELECT alias_url, alias_destination, alias_position '.
'FROM '.$this->core->prefix.'alias '.
"WHERE blog_id = '".$this->core->con->escape($this->core->blog->id)."' ".
'ORDER BY alias_position ASC ';
$this->aliases = $this->core->con->select($sql)->rows();
return $this->aliases;
}
public function updateAliases($aliases)
{
usort($aliases,array($this,'sortCallback'));
foreach ($aliases as $v) {
if (!isset($v['alias_url']) || !isset($v['alias_destination'])) {
throw new Exception(__('Invalid aliases definitions'));
}
}
$this->core->con->begin();
try
{
$this->deleteAliases();
foreach ($aliases as $k => $v)
{
if (!empty($v['alias_url']) && !empty($v['alias_destination']))
{
$this->createAlias($v['alias_url'],$v['alias_destination'],$k+1);
}
}
$this->core->con->commit();
}
catch (Exception $e)
{
$this->core->con->rollback();
throw $e;
}
}
public function createAlias($url,$destination,$position)
{
if (!$url) {
throw new Exception(__('Alias URL is empty.'));
}
if (!$destination) {
throw new Exception(__('Alias destination is empty.'));
}
$cur = $this->core->con->openCursor($this->core->prefix.'alias');
$cur->blog_id = (string) $this->core->blog->id;
$cur->alias_url = (string) $url;
$cur->alias_destination = (string) $destination;
$cur->alias_position = abs((integer) $position);
$cur->insert();
}
public function deleteAlias($url)
{
$this->core->con->execute(
'DELETE FROM '.$this->core->prefix.'alias '.
"WHERE blog_id = '".$this->core->con->escape($this->core->blog->id)."' ".
"AND alias_url = '".$this->core->con->escape($url)."' "
);
}
public function deleteAliases()
{
$this->core->con->execute(
'DELETE FROM '.$this->core->prefix.'alias '.
"WHERE blog_id = '".$this->core->con->escape($this->core->blog->id)."' "
);
}
protected function sortCallback($a,$b)
{
if ($a['alias_position'] == $b['alias_position']) {
return 0;
}
return $a['alias_position'] < $b['alias_position'] ? -1 : 1;
}
}
?>