function DatabaseBackend::prepareItem

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 self::get() or self::getMultiple().

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.

1 call to DatabaseBackend::prepareItem()

DatabaseBackend::getMultiple in core/lib/Drupal/Core/Cache/DatabaseBackend.php

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

File

core/lib/Drupal/Core/Cache/DatabaseBackend.php, line 164

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) : [];
    // Check expire time.
    $cache->valid = $cache->expire == Cache::PERMANENT || $cache->expire >= $this->time
        ->getRequestTime();
    // Check if invalidateTags() has been called with any of the item's tags.
    if (!$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 = $this->serializer
            ->decode($cache->data);
    }
    return $cache;
}