app/views/sets/_spectra.html.erb
<% @set.spectrums.each do |spectrum| %>
<div id="spectrum_<%= spectrum.id %>">
<% if spectrum.photo_file_name %>
<a href="<%= spectrum_path(spectrum.id) %>">
<img style="height:50px;width:100%" class="img" src="<%= spectrum.photo.url(:thumb) %>" />
</a>
<% end %>
<p>
<b><a href="<%= spectrum_path(spectrum.id) %>"><%= spectrum.title %></a></b>
<br />
by <a href="<%= user_path(spectrum.author) %>"><%= spectrum.author %></a>, <%= spectrum.created_at.to_s(:short) %>
</p>
<% if logged_in? && current_user.login == @set.author %>
<div class="btn-group pull-right" style="margin:10px 0;">
<%= link_to '<i class="fa fa-trash"></i> Remove from set'.html_safe, "/sets/remove/"+@set.id.to_s+"?s="+spectrum.id.to_s, :confirm => 'Are you sure?', :class => "btn btn-small" %>
</div>
<% end %>
</div>
<% end %>