app/views/dead_letter_office/dead_letters/_action_links.html.erb
<div class="btn-group">
<a class="btn dropdown-toggle" data-toggle="dropdown" href="#">
<i class="icon-cog"></i> Actions
<span class="caret"></span>
</a>
<ul class="dropdown-menu">
<!-- dropdown menu links -->
<li>
<%= link_to "#", data: { message_id: dead_letter.id } do %>
<i class="icon-envelope"></i> View Details
<% end %>
</li>
<li>
<%= link_to dead_letter_path(dead_letter), method: :delete,
remote: true, data: { confirm: "Are you sure?" } do %>
<i class="icon-trash"></i> Remove
<% end %>
</li>
</ul>
</div>