{{ Form::hidden($field_name, $field_value, ['id' => $field_name]) }}
<div class="row {{ isset($row_class) ? $row_class : '' }}">
    @foreach($map as $k => $v)
        {{ Form::radio_ex($field_name, $k, $field_value, $v, $col_size, isset($on_change) ? $on_change : null, (isset($id_prefix) ? $id_prefix : $field_name . '_') . $k) }}
    @endforeach
</div>