app/views/partials/collection/_member.html.erb
<div class="relation panel" id="<%= klass.name.to_relation_name %>">
<h2><%= klass.model_name.human(:count => 2) %></h2>
<div class="relation-body">
<%- if concept.collections.any? -%>
<ul>
<%- concept.collections.each do |collection| -%>
<li><%= link_to collection.label.to_s, collection_path(:id => collection) %></li>
<%- end -%>
</ul>
<%- end -%>
</div>
</div>