protected function DatabaseBackend::prepareItem

protected DatabaseBackend::prepareItem($cache, $allow_invalid)

Prepares a cached item.

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

Parameters

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

bool $allow_invalid: If FALSE, the method returns FALSE if the cache item is not valid.

Return value

mixed|false The item with data unserialized as appropriate and a property indicating whether the item is valid, or FALSE if there is no valid item to load.

File

core/lib/Drupal/Core/Cache/DatabaseBackend.php, line 117

Class

DatabaseBackend

Defines a default cache implementation.

Namespace

Drupal\Core\Cache

Code

protected function prepareItem($cache, $allow_invalid) {
  if (!isset($cache->data)) {
    return FALSE;
  }

  $cache->tags = $cache->tags ? explode(' ', $cache->tags) : array();

  // Check expire time.
  $cache->valid = $cache->expire == Cache::PERMANENT || $cache->expire >= REQUEST_TIME;

  // Check if invalidateTags() has been called with any of the items's tags.
  if (!$this->checksumProvider->isValid($cache->checksum, $cache->tags)) {
    $cache->valid = FALSE;
  }

  if (!$allow_invalid && !$cache->valid) {
    return FALSE;
  }

  // Unserialize and return the cached data.
  if ($cache->serialized) {
    $cache->data = unserialize($cache->data);
  }

  return $cache;
}