DatabaseStorage::has

public DatabaseStorage::has($key)

Returns whether a given key exists in the store.

Parameters

string $key: The key to check.

Return value

bool TRUE if the key exists, FALSE otherwise.

Overrides KeyValueStoreInterface::has

File

core/lib/Drupal/Core/KeyValueStore/DatabaseStorage.php, line 63

Class

DatabaseStorage

Defines a default key/value store implementation.

Namespace

Drupal\Core\KeyValueStore

Code

public function has($key) {
  return (bool) $this->connection->query('SELECT 1 FROM {' . $this->connection->escapeTable($this->table) . '} WHERE collection = :collection AND name = :key', array(
    ':collection' => $this->collection,
    ':key' => $key,
  ))->fetchField();
}