gistfile1.html

<h1>Edit User</h1>

<%= error_messages_for :user %>

<%= debug @user %>

<% form(users_update_url(:id => @user), :class => "edit_user", :id => "edit_user", :method => :put) do %>
  <p>
    1: <%= :user.radio_button :level, :value => 1, :label => true %>
    2: <%= :user.radio_button :level, :value => 2, :label => true %>
  </p>
  <p>
    <%= submit_button("Update") %>
  </p>
<% end %>

<%= link_to("Back", users_index_url) %>