Prepares a cached item.

Checks that items are either permanent or did not expire, and unserializes data as appropriate.

Parameters

$cache: An item loaded from cache_get() or cache_get_multiple().

Return value

The item with data unserialized as appropriate or FALSE if there is no valid item to load.

1 call to DrupalDatabaseCache::prepareItem()

DrupalDatabaseCache::getMultiple in includes/cache.inc

Implements DrupalCacheInterface::getMultiple().

File

includes/cache.inc, line 432

Class

DrupalDatabaseCache

Defines a default cache implementation.

Code

protected function prepareItem($cache) {
 global $user;
 if (!isset($cache->data )) {
 return FALSE;
 }
 // If the cached data is temporary and subject to a per-user minimum
 // lifetime, compare the cache entry timestamp with the user session
 // cache_expiration timestamp. If the cache entry is too old, ignore it.
 if ($cache->expire != CACHE_PERMANENT  && variable_get ('cache_lifetime', 0) && isset($_SESSION['cache_expiration'][$this->bin ]) && $_SESSION['cache_expiration'][$this->bin ] > $cache->created) {
 // Ignore cache data that is too old and thus not valid for this user.
 return FALSE;
 }
 // If the data is permanent or not subject to a minimum cache lifetime,
 // unserialize and return the cached data.
 if ($cache->serialized) {
 $cache->data  = unserialize ($cache->data );
 }
 return $cache;
}

---