Files
Phraseanet/lib/classes/cache/databox.class.php
2011-02-16 16:09:48 +01:00

120 lines
3.1 KiB
PHP

<?php
class cache_databox
{
private static $_instance = false;
var $_c_obj = false;
function __construct()
{
$this->_c_obj = cache::getInstance();
}
/**
* @return cache_databox
*/
public static function getInstance()
{
if (!(self::$_instance instanceof self))
self::$_instance = new self();
return self::$_instance;
}
public function get($type,$what)
{
return $this->_c_obj->get(GV_ServerName.'_databox_'.$type.'_'.$what);
}
public function set($type,$what,$bin)
{
return $this->_c_obj->set(GV_ServerName.'_databox_'.$type.'_'.$what,$bin);
}
public function delete($type,$what)
{
return $this->_c_obj->delete(GV_ServerName.'_databox_'.$type.'_'.$what);
}
function refresh($sbas_id)
{
$date = new DateTime('-30 seconds');
$cache_appbox = cache_appbox::getInstance();
$last_update = $cache_appbox->get('memcached_update');
if($last_update)
$last_update = new DateTime($last_update);
else
$last_update = new DateTime('-10 years');
if($date > $last_update && $cache_appbox->is_ok())
{
$connsbas = connection::getInstance($sbas_id);
if($connsbas)
{
$sql = 'SELECT type, value FROM memcached WHERE site_id="'.$connsbas->escape_string(GV_ServerName).'"';
if($rs = $connsbas->query($sql))
{
$cache_record = cache_record::getInstance();
$cache_thumbnail = cache_thumbnail::getInstance();
$cache_preview = cache_preview::getInstance();
while($row = $connsbas->fetch_assoc($rs))
{
switch($row['type'])
{
case 'record':
$cache_record->delete($sbas_id,$row['value'],false);
$cache_thumbnail->delete($sbas_id,$row['value'],false);
$cache_preview->delete($sbas_id,$row['value'],false);
$sql = 'DELETE FROM memcached WHERE site_id="'.$connsbas->escape_string(GV_ServerName).'" AND type="record" AND value="'.$row['value'].'"';
$connsbas->query($sql);
break;
case 'structure':
$cache_appbox->delete('list_bases');
$sql = 'DELETE FROM memcached WHERE site_id="'.$connsbas->escape_string(GV_ServerName).'" AND type="structure" AND value="'.$row['value'].'"';
$connsbas->query($sql);
break;
}
}
}
}
$date = new DateTime();
$now = phraseadate::format_mysql($date);
$cache_appbox->set('memcached_update',$now);
$conn = connection::getInstance();
$sql = 'UPDATE sitepreff SET memcached_update="'.$conn->escape_string($now).'"';
$conn->query($sql);
}
}
function update($sbas_id, $type, $value='')
{
$connbas = connection::getInstance($sbas_id);
if($connbas)
{
$sql = 'SELECT distinct site_id as site_id FROM clients WHERE site_id != "'.$connbas->escape_string(GV_ServerName).'"';
if($rs = $connbas->query($sql))
{
while($row = $connbas->fetch_assoc($rs))
{
$sql = 'REPLACE INTO memcached (site_id, type, value) VALUES ("'.$connbas->escape_string($row['site_id']).'","'.$connbas->escape_string($type).'","'.$connbas->escape_string($value).'")';
$connbas->query($sql);
}
$connbas->free_result($rs);
}
}
return true;
}
}