************* CONTROLLER ****************

  def signup
    case request.method
      when :get
        @account_holder = AccountHolder.new
        @account = Account.new
        @blog = Blog.new
        return true
      when :post
        @account = Account.new(params[:account])
        @account_holder = AccountHolder.new(params[:account_holder])
        @blog = Blog.new(params[:blog])

        @plan = Plan.find_by_name('free')
        @administrator = Role.find_by_name('administrator')

        @account_holder.display_name = params[:account_holder][:first_name]   " "   params[:account_holder][:last_name]

        begin
          Account.transaction do
            # account > subscription < plan
            @account.subscriptions.create(:plan => @plan)
            @account.save!

            # account_holder > membership < group
            #@account_holder.account = @account
            #@account_holder.assignments.create(:role => @administrator)
            @account_holder.save!

            # blog > membership < group
            #@blog.users << @account_holder
            @blog.save!
          end
        rescue Exception => e
          #logger.error("message for the log file #{e.message}")
          #flash[:notice] = e.message
          redirect_to :action => 'signup' and return
        end
        redirect_to :action => 'list'
    end
  end



************* VIEW ******************

<%= error_messages_for :account %>
<%= error_messages_for :account_holder %>
<%= error_messages_for :blog %>
<% form_for :account, @account, :url => { :action => "signup" } do |af| %>
    <% fields_for :account_holder, @account_holder do |ahf| -%>
    <fieldset>
      <legend>Your Details</legend>
      <label for="acount_holder_first_name">First Name: <%= ahf.text_field :first_name %></label><br />
      <label for="account_holder_last_name">Last Name: <%= ahf.text_field :last_name %></label><br />
      <label for="account_holder_username">Prefered Username: <%= ahf.text_field :username %></label><br />
      <label for="account_holder_email">Email: <%= ahf.text_field :email %></label><br />
      <label for="account_holder_email_confirmation">Email Confirmation: <%= ahf.text_field :email_confirmation %></label><br />
      <label for="account_holder_password">Password: <%= ahf.password_field :password %></label><br />
      <label for="account_holder_password_confirmation">Confirm Password: <%= ahf.password_field :password_confirmation %></label><br />
      <label for="account_holder_terms_of_acceptance">Accept Terms?: <%= ahf.check_box :terms_of_acceptance %></label>
    </fieldset>
    <% end -%>
    <fieldset>
      <legend>Your application details</legend>
      <% fields_for :blog, @blog do |blog| -%>
        <label for="blog_domain_name">Where would you like your blog? <%= blog.text_field :domain_name %>.mynewsite.com</label>
      <% end -%>
    </fieldset>
    <%= submit_tag %>
<% end %>