individual simple_form radio button
<p>I am using SimpleForm 3.2.1 with Rails 4.  I am trying to convert a rails form into a simple_form.  Here is the code that works for radio buttons with the regular rails form:</p>

<pre><code>  &lt;ul class="list-radios list-multiplier"&gt;
    &lt;% @organization_plans.each_with_index do |plan, index| %&gt;

      &lt;li&gt;
        &lt;div class="radio custom-radio"&gt;
          &lt;%= f.radio_button :plan_id, plan.id, id: "field-rad#{index}", data: {price: plan.total_price} %&gt;

          &lt;label class="form-label" for='field-rad&lt;%= index %&gt;'&gt;
            &lt;span&gt;&lt;/span&gt;

            &lt;%= plan.description %&gt;
          &lt;/label&gt;
        &lt;/div&gt;&lt;!-- /.radio --&gt;
      &lt;/li&gt;
    &lt;% end %&gt;
  &lt;/ul&gt;&lt;!-- /.list-radios --&gt;
</code></pre>

<p>I have tried converting it to SimpleForm with the following code:</p>

<pre><code>  &lt;ul class="list-radios list-multiplier"&gt;
    &lt;% @organization_plans.each_with_index do |plan, index| %&gt;

      &lt;li&gt;
        &lt;div class="radio custom-radio"&gt;
          &lt;%= f.input :plan_id, value: plan.id, input_html: {id: "field-rad#{index}"}, data: {price: plan.total_price}, label: false, as: :radio %&gt;

          &lt;label class="form-label" for='field-rad&lt;%= index %&gt;'&gt;
            &lt;span&gt;&lt;/span&gt;

            &lt;%= plan.description %&gt;
          &lt;/label&gt;
        &lt;/div&gt;&lt;!-- /.radio --&gt;
      &lt;/li&gt;
    &lt;% end %&gt;
  &lt;/ul&gt;&lt;!-- /.list-radios --&gt;
</code></pre>

<p>However, when I open the page in the browser I get the error:</p>

<pre><code>No input found for radio
</code></pre>

<p>How do I get this form to start working with simple_form?</p>