mirror of
https://github.com/kamilwylegala/cakephp2-php8.git
synced 2024-11-15 19:38:26 +00:00
c62c550e3f
git-svn-id: https://svn.cakephp.org/repo/branches/1.2.x.x@4933 3807eeeb-6ff5-0310-8944-8be069107fe0
121 lines
No EOL
3.3 KiB
PHP
121 lines
No EOL
3.3 KiB
PHP
<?php
|
|
/* SVN FILE: $Id$ */
|
|
/**
|
|
* Database Storage engine for cache
|
|
*
|
|
*
|
|
* PHP versions 4 and 5
|
|
*
|
|
* CakePHP(tm) : Rapid Development Framework <http://www.cakephp.org/>
|
|
* Copyright 2005-2007, Cake Software Foundation, Inc.
|
|
* 1785 E. Sahara Avenue, Suite 490-204
|
|
* Las Vegas, Nevada 89104
|
|
*
|
|
* Licensed under The MIT License
|
|
* Redistributions of files must retain the above copyright notice.
|
|
*
|
|
* @filesource
|
|
* @copyright Copyright 2005-2007, Cake Software Foundation, Inc.
|
|
* @link http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project
|
|
* @package cake
|
|
* @subpackage cake.cake.libs.cache
|
|
* @since CakePHP(tm) v 1.2.0.4933
|
|
* @version $Revision$
|
|
* @modifiedby $LastChangedBy$
|
|
* @lastmodified $Date$
|
|
* @license http://www.opensource.org/licenses/mit-license.php The MIT License
|
|
*/
|
|
/**
|
|
* Database Storage engine for cache
|
|
*
|
|
* @todo Not Implemented
|
|
* @package cake
|
|
* @subpackage cake.cake.libs.cache
|
|
*/
|
|
class ModelEngine extends CacheEngine {
|
|
var $_Model = null;
|
|
var $_dataField = '';
|
|
var $_expiryField = '';
|
|
/**
|
|
* Set up the cache engine
|
|
*
|
|
* Called automatically by the cache frontend
|
|
*
|
|
* @todo does not work will return false
|
|
* @param array $params Associative array of parameters for the engine
|
|
* @return boolean True if the engine has been succesfully initialized, false if not
|
|
*/
|
|
function init($params) {
|
|
return false;
|
|
|
|
$modelName = 'DbCache';
|
|
$dataField = 'value';
|
|
$expiryField = 'expires';
|
|
extract($params);
|
|
|
|
if(!class_exists($modelName) && !loadModel($modelName)) {
|
|
return false;
|
|
}
|
|
$this->_Model = new $modelName;
|
|
}
|
|
/**
|
|
* Garbage collection
|
|
*
|
|
* Permanently remove all expired and deleted data
|
|
*/
|
|
function gc() {
|
|
return $this->_Model->deleteAll(array($this->_expiryField => '<= '.time()));
|
|
}
|
|
/**
|
|
* Write a value in the cache
|
|
*
|
|
* @param string $key Identifier for the data
|
|
* @param mixed $value Data to be cached
|
|
* @param mixed $duration How long to cache the data, in seconds
|
|
* @return boolean True if the data was succesfully cached, false on failure
|
|
*/
|
|
function write($key, &$value, $duration = CACHE_DEFAULT_DURATION) {
|
|
$serialized = serialize($value);
|
|
|
|
if(!$serialized) {
|
|
return false;
|
|
}
|
|
$data = array($this->_Model->name => array(
|
|
$this->_dataField => $serialized,
|
|
$this->_expiryField => time() + $duration));
|
|
|
|
$oldId = $this->_Model->id;
|
|
$this->_Model->id = $key;
|
|
$res = $this->_Model->save($data);
|
|
$this->_Model->id = $oldId;
|
|
return $res;
|
|
}
|
|
/**
|
|
* Read a value from the cache
|
|
*
|
|
* @param string $key Identifier for the data
|
|
* @return mixed The cached data, or false if the data doesn't exist, has expired, or if there was an error fetching it
|
|
*/
|
|
function read($key) {
|
|
$val = $this->_Model->field($this->_expiryField, array($this->_Model->primaryKey => $key, $this->_expiryField => '> '.time()));
|
|
return ife($val, unserialize($val), false);
|
|
}
|
|
/**
|
|
* Delete a value from the cache
|
|
*
|
|
* @param string $key Identifier for the data
|
|
* @return boolean True if the value was succesfully deleted, false if it didn't exist or couldn't be removed
|
|
*/
|
|
function delete($key) {
|
|
return $this->_Model->del($key);
|
|
}
|
|
/**
|
|
* Delete all values from the cache
|
|
*
|
|
* @return boolean True if the cache was succesfully cleared, false otherwise
|
|
*/
|
|
function clear() {
|
|
return $this->_Model->deleteAll(null);
|
|
}
|
|
}
|
|
?>
|