app/views/environment_role_manager/change_role.html.erb
<%= _('Changing role of %s') % @admin.name %>
<%= labelled_form_for :admin, :url => {:action => 'update_roles'} do |f| %>
<%= _('Roles:') %> <br>
<% @roles.each do |r| %>
<%= labelled_form_field(r.name, (check_box_tag "roles[]", r.id, @admin.role_assignments.map{|ra|ra.role}.include?(r))) %>
<% end %>
<%= hidden_field_tag 'person', @admin.id %>
<%= button_bar do %>
<%= submit_button('save', _('Save changes'), :cancel => {:action => 'index'}) %>
<% end %>
<% end %>