/**
* Expires the wildcard cache. This causes the wildcard cache to be
* regenerated on the next page load.
* @return void
*/
public static function expireCache()
{
$handler = eZExpiryHandler::instance();
$handler->setTimestamp( self::CACHE_SIGNATURE, time() );
$handler->store();
self::$wildcardsIndex = null;
}
/**
* Assign function names to input variables. Generates the wildcard cache if
* expired.
*
* @return array The wildcards index, as an array of regexps
*/
protected static function wildcardsIndex()
{
if (self::$wildcardsIndex === null) {
$cacheIndexFile = self::loadCacheFile();
// if NULL is returned, the cache doesn't exist or isn't valid
self::$wildcardsIndex = $cacheIndexFile->processFile(array(__CLASS__, 'fetchCacheFile'), self::expiryTimestamp());
if (self::$wildcardsIndex === null) {
// This will generate and return the index, and store the cache
// files for the different wildcards for later use
self::$wildcardsIndex = self::createWildcardsIndex();
}
}
return self::$wildcardsIndex;
}
