mirror of
https://github.com/kamilwylegala/cakephp2-php8.git
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6019c0d98d
git-svn-id: https://svn.cakephp.org/repo/trunk/cake@757 3807eeeb-6ff5-0310-8944-8be069107fe0
161 lines
No EOL
3.5 KiB
PHP
161 lines
No EOL
3.5 KiB
PHP
<?php
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/* SVN FILE: $Id$ */
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/**
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* Caching for Cake.
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*
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*
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*
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* PHP versions 4 and 5
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*
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* CakePHP : Rapid Development Framework <http://www.cakephp.org/>
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* Copyright (c) 2005, CakePHP Authors/Developers
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*
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* Author(s): Michal Tatarynowicz aka Pies <tatarynowicz@gmail.com>
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* Larry E. Masters aka PhpNut <nut@phpnut.com>
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* Kamil Dzielinski aka Brego <brego.dk@gmail.com>
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @filesource
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* @author CakePHP Authors/Developers
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* @copyright Copyright (c) 2005, CakePHP Authors/Developers
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* @link https://trac.cakephp.org/wiki/Authors Authors/Developers
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* @package cake
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* @subpackage cake.libs
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* @since CakePHP v 0.2.9
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* @version $Revision$
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* @modifiedby $LastChangedBy$
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* @lastmodified $Date$
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License
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*/
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/**
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* Enter description here...
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*
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*/
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uses('model');
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/**
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* Caching for Cake.
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*
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*
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*
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* @package cake
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* @subpackage cake.libs
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* @since CakePHP v 0.2.9
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*/
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class Cache extends Model {
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/**
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* Identifier. Either an MD5 string or NULL.
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*
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* @var unknown_type
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*/
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var $id = null;
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/**
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* Content container for cache data.
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*
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* @var unknown_type
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*/
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var $data = null;
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/**
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* Content to be cached.
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*
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* @var unknown_type
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*/
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var $for_caching = null;
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/**
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* Name of the database table used for caching.
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*
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* @var unknown_type
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*/
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var $use_table = 'cache';
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/**
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* Constructor. Generates an md5'ed id for internal use. Calls the constructor on Model as well.
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*
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* @param unknown_type $id
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*/
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function __construct ($id)
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{
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$this->id = (md5($id));
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parent::__construct($this->id);
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}
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/**
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* Returns this object's id after setting it. If no $id is given then $this->id is returned.
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*
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* @param unknown_type $id
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* @return unknown
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*/
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function id ($id=null)
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{
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if (!$id) return $this->id;
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return ($this->id = $id);
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}
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/**
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* Save $content in cache for $keep_for seconds.
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*
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* @param string $content Content to keep in cache.
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* @param int $keep_for Number of seconds to keep data in cache.
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* @return unknown
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*/
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function remember ($content, $keep_for=CACHE_PAGES_FOR)
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{
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$data = addslashes($this->for_caching.$content);
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$expire = date("Y-m-d H:i:s",time()+($keep_for>0? $keep_for: 999999999));
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return $this->query("REPLACE {$this->use_table} (id,data,expire) VALUES ('{$this->id}', '{$data}', '{$expire}')");
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}
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/**
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* Returns content from the Cache object itself, if the Cache object has a non-empty data property. Else from the database cache.
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*
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* @return unknown
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*/
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function restore()
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{
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if (empty($this->data['data']))
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return $this->find("id='{$this->id}' AND expire>NOW()");
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return $this->data['data'];
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}
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/**
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* Returns true if the cache data property has current (non-stale) content for given id.
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*
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* @return boolean
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*/
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function has()
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{
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return is_array($this->data = $this->find("id='{$this->id}' AND expire>NOW()"));
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}
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/**
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* Appends $string to the for_caching property of the Cache object.
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*
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* @param string $string
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*/
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function append($string)
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{
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$this->for_caching .= $string;
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}
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/**
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* Clears the cache database table.
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*
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* @return unknown
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*/
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function clear()
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{
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return $this->query("DELETE FROM {$this->use_table}");
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}
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}
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?>
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