gistfile1.rb

<%form_for :user, :url => user_profile_path(@user), :html => { :method => :put } do |f|%>

  <% f.fields_for @user.user_profile do |pf|%>
      <%= pf.label t("profile.name")%>
      <%= pf.text_field :name%>
  <% end %>

  <% f.fields_for :languages do |lang|%>
    %p
      <%= lang.label t("profile.languages")%>
      <%= lang.check_box :eng%>
  <%end%>

<%= f.submit "Zapisz"%>
<% end %>