# This observing only seem to happend once (the logger only output once), after starting the app.
# To have it run again I must restart the application (another save wont trigger it)

## environment

config.active_record.observers = :user_observer

## observer

class UserObserver < ActiveRecord::Observer

  def after_save(user)
!!    user.logger.info("*** AFTER SAVE ***")
  end

end

## model

require 'digest/sha1'
class User < ActiveRecord::Base

  validates_presence_of :firstname, :lastname
  validates_presence_of :email_new, :password, :password_confirmation, :on => :create

  # virtual attribute
  attr_accessor :password_confirmation

  attr_protected :email

  def password
    @password
  end

  def password=(pwd)
    @password = pwd
    unless pwd.blank?
      self.password_salt = User.generate_token
      self.password_hash = User.hash_password(self.password, self.password_salt)
    end
  end


  private

  def self.hash_password(password, salt)
    Digest::SHA1.hexdigest(password + salt)
  end


  def self.generate_token
    Digest::SHA1.hexdigest(Time.now.to_s + rand.to_s);
  end

end

## controller

class AccountController < ApplicationController

  before_filter :authorize, :only => [:index, :edit]

  def signup
    @user = User.new(params[:user])
    if request.post? and @user.save
      flash[:notice] = "User #{@user.firstname} created"
      #@user = User.new  REMOVE?
    end
  end

  def edit
    @user = User.find(session[:user_id])
    if request.post? and @user.update_attributes(@params[:user])
      flash[:notice] = "Ändringarna har sparats"
    end
  end