Current File : /www/varak.net/shop.varak.net-cisty/classes/SmartyCacheResourceMysql.php
<?php
/*
* 2007-2016 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License (OSL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/osl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@prestashop.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to http://www.prestashop.com for more information.
*
* @author PrestaShop SA <contact@prestashop.com>
* @copyright 2007-2016 PrestaShop SA
* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
* International Registered Trademark & Property of PrestaShop SA
*/
require_once(_PS_TOOL_DIR_.'smarty/Smarty.class.php');
class Smarty_CacheResource_Mysql extends Smarty_CacheResource_Custom
{
/**
* fetch cached content and its modification time from data source
*
* @param string $id unique cache content identifier
* @param string $name template name
* @param string $cache_id cache id
* @param string $compile_id compile id
* @param string $content cached content
* @param int $mtime cache modification timestamp (epoch)
* @return void
*/
protected function fetch($id, $name, $cache_id, $compile_id, &$content, &$mtime)
{
$row = Db::getInstance()->getRow('SELECT modified, content FROM '._DB_PREFIX_.'smarty_cache WHERE id_smarty_cache = "'.pSQL($id, true).'"');
if ($row) {
$content = $row['content'];
$mtime = strtotime($row['modified']);
} else {
$content = null;
$mtime = null;
}
}
/**
* Fetch cached content's modification timestamp from data source
*
* @note implementing this method is optional. Only implement it if modification times can be accessed faster than loading the complete cached content.
* @param string $id unique cache content identifier
* @param string $name template name
* @param string $cache_id cache id
* @param string $compile_id compile id
* @return int|boolean timestamp (epoch) the template was modified, or false if not found
*/
protected function fetchTimestamp($id, $name, $cache_id, $compile_id)
{
$value = Db::getInstance()->getValue('SELECT modified FROM '._DB_PREFIX_.'smarty_cache WHERE id_smarty_cache = "'.pSQL($id, true).'"');
$mtime = strtotime($value);
return $mtime;
}
/**
* Save content to cache
*
* @param string $id unique cache content identifier
* @param string $name template name
* @param string $cache_id cache id
* @param string $compile_id compile id
* @param int|null $exp_time seconds till expiration time in seconds or null
* @param string $content content to cache
* @return bool success
*/
protected function save($id, $name, $cache_id, $compile_id, $exp_time, $content)
{
Db::getInstance()->execute('
REPLACE INTO '._DB_PREFIX_.'smarty_cache (id_smarty_cache, name, cache_id, content)
VALUES (
"'.pSQL($id, true).'",
"'.pSQL(sha1($name)).'",
"'.pSQL($cache_id, true).'",
"'.pSQL($content, true).'"
)');
return (bool)Db::getInstance()->Affected_Rows();
}
/**
* Delete content from cache
*
* @param string $name template name
* @param string $cache_id cache id
* @param string $compile_id compile id
* @param int|null $exp_time seconds till expiration or null
* @return int number of deleted caches
*/
protected function delete($name, $cache_id, $compile_id, $exp_time)
{
// delete the whole cache
if ($name === null && $cache_id === null && $compile_id === null && $exp_time === null) {
// returning the number of deleted caches would require a second query to count them
Db::getInstance()->execute('TRUNCATE TABLE '._DB_PREFIX_.'smarty_cache');
return -1;
}
$where = array();
if ($name !== null) {
$where[] = 'name = "'.pSQL(sha1($name)).'"';
}
if ($exp_time !== null) {
$where[] = 'modified < DATE_SUB(NOW(), INTERVAL '.(int)$exp_time.' SECOND)';
}
if ($cache_id !== null) {
$where[] = '(cache_id = "'.pSQL($cache_id, true).'" OR cache_id LIKE "'.pSQL($cache_id .'|%', true).'")';
}
Db::getInstance()->execute('DELETE FROM '._DB_PREFIX_.'smarty_cache WHERE '.implode(' AND ', $where));
return Db::getInstance()->Affected_Rows();
}
}
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