<%= form_for(:user, :url => { :action => 'update' }, :html => {:method => :put}) do %>
<% user_group_ids = @user.group_ids %> <% Group.givable.sort.each do |group| %>
<%= check_box_tag 'user[group_ids][]', group.id, user_group_ids.include?(group.id), :id => nil %> <%= group %>
<% end %> <%= hidden_field_tag 'user[group_ids][]', '' %>
<%= check_all_links 'user_group_ids' %>
<%= submit_tag l(:button_save) %> <% end %>