<h1><%= @form.name %></h1>
<p><%= @form.description %></p>

<% fields_for :submission, @submission do |f| %>
  <%= render :partial => 'shared/form_submission', :locals => {:f => f} %>
<% end %>

<% button_bar do %>
  <%= button :back, _('Back to submissions'), :action => 'submissions', :id => @form.id %>
<% end %>

<h1><%= @form.name %></h1>
<p><%= @form.description %></p>

<%= fields_for :submission, @submission do |f| %>
  <%= render :partial => 'shared/form_submission', :locals => {:f => f} %>
<% end %>

<% button_bar do %>
  <%= button :back, _('Back to submissions'), :action => 'submissions', :id => @form.id %>
<% end %>

Change fields_for structure to rails 3 in show_submission view
Change fields_for structure to rails 3 in show_submission view
