gistfile1.rb

#--Model

class Forum::Forum < ActiveRecord::Base
#has a field called 'name'

#--Form (in the view)
<%= form_for @forum do |f| %>
<%= f.label :name %>: <%=f.text_field :name %><br />
<%= f.submit "Send" %>
<% end %>

#--Locale
en: 
  helpers:
    label: 
     forum: 
      forum:
        name: "Forum name"