crowdAI/crowdai

<div class="sub-nav">
  <div class="row">
    <ul>
      <% article.article_sections.each_with_index do |section,i| %>
        <% if section == article_section %>
          <li class="active">
            <%= link_to section.section, article_path(article, article_section_id: section.id) %>
            <sup><%= i + 1 %></sup>
          </li>
        <% else %>
          <li>
            <%= link_to section.section, article_path(article, article_section_id: section.id) %>
            <sup><%= i + 1 %></sup>
          </li>
        <% end %>
      <% end %>
    </ul>
  </div>
</div>