Crud\Action\Bulk\SetValueAction::_bulk PHP Method

    protected function _bulk(Query $query = null)
    {
        $field = $this->config('field');
        $value = $this->config('value');
        $query->update()->set([$field => $value]);
        $statement = $query->execute();
        $statement->closeCursor();
        return $statement->rowCount();
    }