Encore\Admin\Grid\Filter\AbstractFilter::formatName PHP Метод

    protected function formatName($column)
    {
        $columns = explode('.', $column);
        if (count($columns) == 1) {
            return $columns[0];
        }
        $name = array_shift($columns);
        foreach ($columns as $column) {
            $name .= "[{$column}]";
        }
        return $name;
    }