photomix/app/controllers/users_controller.rb

class UsersController < ApplicationController
  before_filter :require_no_user, :only => [:new, :create]
  before_filter :require_user, :only => [:show, :edit, :update, :destroy]
  skip_filter :setup

  def new
    @user = User.new
  end
  
  def create
    @user = User.new(params[:user])
    if @user.save
      if User.all.length == 1
        @user.roles << Role.create(:name => 'admin')
      end
      flash[:notice] = "Account registered!"
      redirect_back_or_default new_collection_path
    else
      render :action => :new
    end
  end
  
  def show
    @user = @current_user
  end
 
  def edit
    @user = @current_user
  end
  
  def update
    @user = @current_user # makes our views "cleaner" and more consistent
    if @user.update_attributes(params[:user])
      flash[:notice] = "Account updated!"
      redirect_to account_path
    else
      render :action => :edit
    end
  end
 
  def destroy
    @user = @current_user
    if @user.destroy
      redirect_to users_path
    else
      redirect_to @user
    end
  end
end