app/views/roles/show.html.erb
<% provide(:page_header) do %>
<h1><%= t('.title', name: @role.name) %></h1>
<% end %>
<% provide(:page_title) do
t('.page_title', name: @role.name, app_name: application_name)
end %>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">
<%= t('.accounts') %>
</h3>
</div>
<ul class="list-group">
<% @role.users.each do |user| %>
<li class="list-group-item"><%= user.user_key %></li>
<% end %>
</ul>
</div>