app/views/contratos/index.html.erb
<%= @contratos.each do |c| %>
<div id="contrato-information-<%=c.id%>">
<%= link_to "Responder", :controller => "contratos", :action => "show" %>
Quanto vale:
<%= link_to c.objeto, :controller => "contratos", action: "show", :id => c.id %>
</div> <br>
<% end %>