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  • Committer: galaxyAbstractor
  • Date: 2013-04-10 15:49:32 UTC
  • mto: (19.1.5 lenasys)
  • mto: This revision was merged to the branch mainline in revision 23.
  • Revision ID: galaxyabstractor@gmail.com-20130410154932-4vizlzk0ar5gykvi
* Added an simple admin panel to the codeviewer-cmssy stuff
* Redesigned a bit like the mockups - still stuff to come
* Implemented the codeviewer + admin panel again using the Framework CodeIgniter instead 

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codeigniter/system/libraries/Cache/Cache.php
 
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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 
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/**
 
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 * CodeIgniter
 
4
 *
 
5
 * An open source application development framework for PHP 4.3.2 or newer
 
6
 *
 
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 * @package             CodeIgniter
 
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 * @author              ExpressionEngine Dev Team
 
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 * @copyright   Copyright (c) 2006 - 2012 EllisLab, Inc.
 
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 * @license             http://codeigniter.com/user_guide/license.html
 
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 * @link                http://codeigniter.com
 
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 * @since               Version 2.0
 
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 * @filesource  
 
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 */
 
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// ------------------------------------------------------------------------
 
17
 
 
18
/**
 
19
 * CodeIgniter Caching Class 
 
20
 *
 
21
 * @package             CodeIgniter
 
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 * @subpackage  Libraries
 
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 * @category    Core
 
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 * @author              ExpressionEngine Dev Team
 
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 * @link                
 
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 */
 
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class CI_Cache extends CI_Driver_Library {
 
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        protected $valid_drivers        = array(
 
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                'cache_apc', 'cache_file', 'cache_memcached', 'cache_dummy'
 
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        );
 
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        protected $_cache_path          = NULL;         // Path of cache files (if file-based cache)
 
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        protected $_adapter                     = 'dummy';
 
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        protected $_backup_driver;
 
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        // ------------------------------------------------------------------------
 
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        /**
 
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         * Constructor
 
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         *
 
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         * @param array
 
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         */
 
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        public function __construct($config = array())
 
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        {
 
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                if ( ! empty($config))
 
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                {
 
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                        $this->_initialize($config);
 
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                }
 
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        }
 
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        // ------------------------------------------------------------------------
 
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        /**
 
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         * Get 
 
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         *
 
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         * Look for a value in the cache.  If it exists, return the data 
 
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         * if not, return FALSE
 
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         *
 
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         * @param       string  
 
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         * @return      mixed           value that is stored/FALSE on failure
 
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         */
 
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        public function get($id)
 
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        {       
 
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                return $this->{$this->_adapter}->get($id);
 
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        }
 
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        // ------------------------------------------------------------------------
 
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        /**
 
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         * Cache Save
 
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         *
 
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         * @param       string          Unique Key
 
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         * @param       mixed           Data to store
 
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         * @param       int                     Length of time (in seconds) to cache the data
 
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         *
 
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         * @return      boolean         true on success/false on failure
 
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         */
 
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        public function save($id, $data, $ttl = 60)
 
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        {
 
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                return $this->{$this->_adapter}->save($id, $data, $ttl);
 
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        }
 
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        // ------------------------------------------------------------------------
 
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        /**
 
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         * Delete from Cache
 
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         *
 
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         * @param       mixed           unique identifier of the item in the cache
 
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         * @return      boolean         true on success/false on failure
 
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         */
 
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        public function delete($id)
 
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        {
 
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                return $this->{$this->_adapter}->delete($id);
 
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        }
 
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        // ------------------------------------------------------------------------
 
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        /**
 
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         * Clean the cache
 
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         *
 
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         * @return      boolean         false on failure/true on success
 
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         */
 
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        public function clean()
 
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        {
 
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                return $this->{$this->_adapter}->clean();
 
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        }
 
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        // ------------------------------------------------------------------------
 
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        /**
 
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         * Cache Info
 
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         *
 
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         * @param       string          user/filehits
 
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         * @return      mixed           array on success, false on failure      
 
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         */
 
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        public function cache_info($type = 'user')
 
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        {
 
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                return $this->{$this->_adapter}->cache_info($type);
 
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        }
 
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        // ------------------------------------------------------------------------
 
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        /**
 
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         * Get Cache Metadata
 
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         *
 
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         * @param       mixed           key to get cache metadata on
 
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         * @return      mixed           return value from child method
 
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         */
 
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        public function get_metadata($id)
 
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        {
 
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                return $this->{$this->_adapter}->get_metadata($id);
 
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        }
 
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        // ------------------------------------------------------------------------
 
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        /**
 
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         * Initialize
 
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         *
 
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         * Initialize class properties based on the configuration array.
 
141
         *
 
142
         * @param       array   
 
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         * @return      void
 
144
         */
 
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        private function _initialize($config)
 
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        {        
 
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                $default_config = array(
 
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                                'adapter',
 
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                                'memcached'
 
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                        );
 
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                foreach ($default_config as $key)
 
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                {
 
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                        if (isset($config[$key]))
 
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                        {
 
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                                $param = '_'.$key;
 
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                                $this->{$param} = $config[$key];
 
159
                        }
 
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                }
 
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                if (isset($config['backup']))
 
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                {
 
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                        if (in_array('cache_'.$config['backup'], $this->valid_drivers))
 
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                        {
 
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                                $this->_backup_driver = $config['backup'];
 
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                        }
 
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                }
 
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        }
 
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171
        // ------------------------------------------------------------------------
 
172
 
 
173
        /**
 
174
         * Is the requested driver supported in this environment?
 
175
         *
 
176
         * @param       string  The driver to test.
 
177
         * @return      array
 
178
         */
 
179
        public function is_supported($driver)
 
180
        {
 
181
                static $support = array();
 
182
 
 
183
                if ( ! isset($support[$driver]))
 
184
                {
 
185
                        $support[$driver] = $this->{$driver}->is_supported();
 
186
                }
 
187
 
 
188
                return $support[$driver];
 
189
        }
 
190
 
 
191
        // ------------------------------------------------------------------------
 
192
 
 
193
        /**
 
194
         * __get()
 
195
         *
 
196
         * @param       child
 
197
         * @return      object
 
198
         */
 
199
        public function __get($child)
 
200
        {
 
201
                $obj = parent::__get($child);
 
202
 
 
203
                if ( ! $this->is_supported($child))
 
204
                {
 
205
                        $this->_adapter = $this->_backup_driver;
 
206
                }
 
207
 
 
208
                return $obj;
 
209
        }
 
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        // ------------------------------------------------------------------------
 
212
}
 
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// End Class
 
214
 
 
215
/* End of file Cache.php */
 
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/* Location: ./system/libraries/Cache/Cache.php */
 
 
b'\\ No newline at end of file'