yii\elasticsearch\QueryBuilder::__construct PHP Method

__construct() public method

Constructor.
public __construct ( Connection $connection, array $config = [] )
$connection Connection the database connection.
$config array name-value pairs that will be used to initialize the object properties
    public function __construct($connection, $config = [])
    {
        $this->db = $connection;
        parent::__construct($config);
    }