## edit.rhtml
<h2>Edit <%= @user.login %></h2>

<% form_for :user, :url => user_path(@user), :html => {:method => :put} do %>
  <%= error_messages_for 'user' %>

  <!--[form:user]-->
  <p><label for="user_login"><b>Login:</b></label> <%= @user.login %></p>

  <p><label for="user_password">Change password:</label><br/>
  <%= password_field 'user', 'password' %></p>

  <p><label for="user_password_confirmation">Confirm:</label><br/>
  <%= password_field 'user', 'password_confirmation' %></p>

  <p><label for="user_type">Type:</label><br/>
  <%= select :user, :type, User::TYPES.map{ |x| [x,x] } %></p>

  <!--[eoform:user]-->

  <%= submit_tag 'Edit' %>
<% end %>

<%= link_to 'Show', user_path(@user) %> |
<%= link_to 'Back', :action => 'index' %>

## snip of user.rb
class User < ActiveRecord::Base
  # define all usertypes here
  TYPES = %w( User Contributor Moderator Admin ).freeze

## user table
class CreateUsers < ActiveRecord::Migration
  def self.up
    create_table "users", :force => true do |t|
      t.column :login,                     :string
      t.column :email,                     :string
      t.column :crypted_password,          :string, :limit => 40
      t.column :salt,                      :string, :limit => 40
      t.column :created_at,                :datetime
      t.column :updated_at,                :datetime
      t.column :remember_token,            :string
      t.column :remember_token_expires_at, :datetime
      t.column :type,                      :string

    end
  end

  def self.down
    drop_table "users"
  end
end

## error
 TypeError in Users#edit
 Showing app/views/users/edit.rhtml where line #16 raised:
wrong argument type String (expected Module)
Extracted source (around line #16):
13:   <%= password_field 'user', 'password_confirmation' %></p>
14:
15:   <p><label for="user_type">Type:</label><br/>
16:   <%= select :user, :type, User::TYPES.map{ |x| [x,x] } %></p>
17:
18:   <!--[eoform:user]-->
19:

RAILS_ROOT: /home/railsapps/cyshows2/public/../config/..
Application Trace | Framework Trace | Full Trace
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/form_options_helper.rb:116:in `include?'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/form_options_helper.rb:116:in `options_for_select'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/form_helper.rb:349:in `inject'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/form_options_helper.rb:114:in `each'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/form_options_helper.rb:114:in `inject'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/form_options_helper.rb:114:in `options_for_select'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/form_options_helper.rb:302:in `to_select_tag'
/usr/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/form_options_helper.rb:66:in `select'
#{RAILS_ROOT}/app/views/users/edit.rhtml:16:in `_run_rhtml_47app47views47users47edit46rhtml'
#{RAILS_ROOT}/app/views/users/edit.rhtml:3:in `_run_rhtml_47app47views47users47edit46rhtml'
Request
Parameters: {"id"=>"1"}
Show session dump
Response
Headers: {"cookie"=>[], "Cache-Control"=>"no-cache"}