protected function DrupalDatabaseCache::prepareItem
protected DrupalDatabaseCache::prepareItem($cache)
Prepares a cached item.
Checks that items are either permanent or did not expire, and unserializes data as appropriate.
Parameters
$cache: An item loaded from cache_get() or cache_get_multiple().
Return value
The item with data unserialized as appropriate or FALSE if there is no valid item to load.
File
- includes/cache.inc, line 422
- Functions and interfaces for cache handling.
Class
- DrupalDatabaseCache
- Defines a default cache implementation.
Code
protected function prepareItem($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; }
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Licensed under the GNU General Public License, version 2 and later.
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https://api.drupal.org/api/drupal/includes!cache.inc/function/DrupalDatabaseCache::prepareItem/7.x