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<?php
/**
* Elgg cache
* Cache file interface for caching data.
*
* @package Elgg.Core
* @subpackage Cache
*/
/**
* Returns an ElggCache object suitable for caching view
* file load paths to disk under $CONFIG->dataroot.
*
* @todo Can this be done in a cleaner way?
* @todo Swap to memcache etc?
*
* @return ElggFileCache A cache object suitable for caching file load paths.
*/
function elgg_get_filepath_cache() {
global $CONFIG;
/**
* A default filestore cache using the dataroot.
*/
static $FILE_PATH_CACHE;
if (!$FILE_PATH_CACHE) {
$FILE_PATH_CACHE = new ElggFileCache($CONFIG->dataroot);
}
return $FILE_PATH_CACHE;
}
/**
* Deletes the view file paths cache from disk.
*
* @return bool On success
*/
function elgg_filepath_cache_reset() {
$cache = elgg_get_filepath_cache();
return $cache->delete('view_paths');
}
/**
* Saves $data to the views file paths disk cache as
* 'view_paths'.
*
* @param mixed $data The data
*
* @return bool On success
*/
function elgg_filepath_cache_save($data) {
global $CONFIG;
if ($CONFIG->viewpath_cache_enabled) {
$cache = elgg_get_filepath_cache();
return $cache->save('view_paths', $data);
}
return false;
}
/**
* Returns the contents of the views file paths cache from disk.
*
* @return mixed Null if simplecache isn't enabled, the contents of the
* views file paths cache if it is.
*/
function elgg_filepath_cache_load() {
global $CONFIG;
if ($CONFIG->viewpath_cache_enabled) {
$cache = elgg_get_filepath_cache();
$cached_view_paths = $cache->load('view_paths');
if ($cached_view_paths) {
return $cached_view_paths;
}
}
return NULL;
}
/**
* Enables the views file paths disk cache.
*
* Uses the 'viewpath_cache_enabled' datalist with a boolean value.
* Resets the views paths cache.
*
* @return null
*/
function elgg_enable_filepath_cache() {
global $CONFIG;
datalist_set('viewpath_cache_enabled', 1);
$CONFIG->viewpath_cache_enabled = 1;
elgg_filepath_cache_reset();
}
/**
* Disables the views file paths disk cache.
*
* Uses the 'viewpath_cache_enabled' datalist with a boolean value.
* Resets the views paths cache.
*
* @return null
*/
function elgg_disable_filepath_cache() {
global $CONFIG;
datalist_set('viewpath_cache_enabled', 0);
$CONFIG->viewpath_cache_enabled = 0;
elgg_filepath_cache_reset();
}
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