function DatabaseStorage::exists

Overrides StorageInterface::exists

File

core/lib/Drupal/Core/Config/DatabaseStorage.php, line 67

Class

DatabaseStorage

Defines the Database storage.

Namespace

Code

public function exists($name) {
    try {
        return (bool) $this->connection
            ->queryRange('SELECT 1 FROM {' . $this->connection
            ->escapeTable($this->table) . '} WHERE [collection] = :collection AND [name] = :name', 0, 1, [
            ':collection' => $this->collection,
            ':name' => $name,
        ], $this->options)
            ->fetchField();
    } catch (\Exception $e) {
        if ($this->connection
            ->schema()
            ->tableExists($this->table)) {
            throw $e;
        }
        // If we attempt a read without actually having the table available,
        // return false so the caller can handle it.
        return FALSE;
    }
}