<div class="row">
  <div class="col-6">
    <div class="field">
      <%= select_tag "#{param_prefix}[preferred_operator]", options_for_select(promotion_rule.class.operator_options, promotion_rule.preferred_operator), {class: 'custom-select select_item_total fullwidth'} %>
    </div>
  </div>
  <div class="col-6">
    <div class="field">
      <%= fields_for param_prefix, promotion_rule do |f| %>
        <%= render "spree/admin/shared/number_with_currency", f: f, amount_attr: :preferred_amount, currency_attr: :preferred_currency %>
      <% end %>
    </div>
  </div>
</div>
