protected function CacheBase::expandEntry in Redis 8

Prepares a cached item.

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

Parameters

array $values: The hash returned from redis or false.

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.

2 calls to CacheBase::expandEntry()

PhpRedis::getMultiple in src/Cache/PhpRedis.php

Returns data from the persistent cache when given an array of cache IDs.

Predis::getMultiple in src/Cache/Predis.php

Returns data from the persistent cache when given an array of cache IDs.

File

src/Cache/CacheBase.php, line 298

Class

CacheBase

Base class for redis cache backends.

Namespace

Drupal\redis\Cache

Code

protected function expandEntry(array $values, $allow_invalid) {

  // Check for entry being valid.
  if (empty($values['cid'])) {
    return FALSE;
  }

  // Ignore items that are scheduled for deletion.
  if (in_array($values['cid'], $this->delayedDeletions)) {
    return FALSE;
  }
  $cache = (object) $values;
  $cache->tags = explode(' ', $cache->tags);

  // Check expire time, allow to have a cache invalidated explicitly, don't
  // check if already invalid.
  if ($cache->valid) {
    $cache->valid = $cache->expire == Cache::PERMANENT || $cache->expire >= REQUEST_TIME;

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

  // Ensure the entry does not predate the last delete all time.
  $last_delete_timestamp = $this
    ->getLastDeleteAll();
  if ($last_delete_timestamp && (double) $values['created'] < $last_delete_timestamp) {
    return FALSE;
  }
  if (!$allow_invalid && !$cache->valid) {
    return FALSE;
  }
  if (!empty($cache->gz)) {

    // Uncompress, suppress warnings e.g. for broken CRC32.
    $cache->data = @gzuncompress($cache->data);

    // In such cases, void the cache entry.
    if ($cache->data === FALSE) {
      return FALSE;
    }
  }
  if ($cache->serialized) {
    $cache->data = $this->serializer
      ->decode($cache->data);
  }
  return $cache;
}