function CacheTagsChecksumTrait::invalidateTags

Implements \Drupal\Core\Cache\CacheTagsInvalidatorInterface::invalidateTags()

File

core/lib/Drupal/Core/Cache/CacheTagsChecksumTrait.php, line 53

Class

CacheTagsChecksumTrait

A trait for cache tag checksum implementations.

Namespace

Code

public function invalidateTags(array $tags) {
    // Only invalidate tags once per request unless they are written again.
    foreach ($tags as $key => $tag) {
        if (isset($this->invalidatedTags[$tag])) {
            unset($tags[$key]);
        }
        else {
            $this->invalidatedTags[$tag] = TRUE;
            unset($this->tagCache[$tag]);
        }
    }
    if (!$tags) {
        return;
    }
    $in_transaction = $this->getDatabaseConnection()
        ->inTransaction();
    if ($in_transaction) {
        if (empty($this->delayedTags)) {
            $this->getDatabaseConnection()
                ->addRootTransactionEndCallback([
                $this,
                'rootTransactionEndCallback',
            ]);
        }
        $this->delayedTags = Cache::mergeTags($this->delayedTags, $tags);
    }
    else {
        $this->doInvalidateTags($tags);
    }
}