Open-Source-Access-Control-Web-Interface/app/views/resources/index.html.erb

<h1>Resources</h1>

<%= link_to 'Add Equipment', new_resource_path, :class => "btn" if can? :create, Resource %>

<style>
  .collapsible .thumbnail { height: 150px; }
</style>

<% unless @resources.blank? %>
  <div class="panel-group" id="accordion">
    <% @resources.sort_by{|r| [r.category_name,r.name] }.group_by(&:category).each do |category,resources| %>
    <div class="panel panel-default">
      <div class="panel-heading">
        <h4 class="panel-title">
          <a data-toggle="collapse" data-parent="#accordion" href="#collapseOne">
            <%= category.name %>
          </a>
        </h4>
      </div>
      <div id="collapseOne" class="panel-collapse collapse in">
        <div class="panel-body">
        <%= render resources %>
        </div>
      </div>
    </div>
    <% end %>
  </div>
<% end %>

<br />