## Model
require 'digest/sha1'
class Driver < ActiveRecord::Base
  # Virtual attribute for the unencrypted password
  attr_accessor :password

  has_many :vehicles

  validates_presence_of     :login, :email
  validates_presence_of     :password,                   :if => :password_required?
  validates_presence_of     :password_confirmation,      :if => :password_required?
  validates_length_of       :password, :within => 4..40, :if => :password_required?
  validates_confirmation_of :password,                   :if => :password_required?
  validates_length_of       :login,    :within => 3..40
  validates_length_of       :email,    :within => 3..100
  validates_uniqueness_of   :login, :email, :case_sensitive => false
  validates_presence_of :first_name
  validates_presence_of :last_name
  validates_presence_of :city
  validates_presence_of :state
  validates_presence_of :zip
  validates_length_of :zip, :is => 5
  validates_numericality_of :zip
  validates_length_of :city, :minimum => 2
#  validates_length_of :state, :minimum => 2, :if => :password_required?
  before_save :encrypt_password

  # prevents a user from submitting a crafted form that bypasses activation
  # anything else you want your user to change should be added here.
  attr_accessible :login, :email, :password, :password_confirmation, :first_name, :last_name, :city, :state, :zip

  # Authenticates a user by their login name and unencrypted password.  Returns the user or nil.
  def self.authenticate(login, password)
    u = find_by_login(login) # need to get the salt
    u && u.authenticated?(password) ? u : nil
  end

  # Encrypts some data with the salt.
  def self.encrypt(password, salt)
    Digest::SHA1.hexdigest("--#{salt}--#{password}--")
  end

  # Encrypts the password with the user salt
  def encrypt(password)
    self.class.encrypt(password, salt)
  end

  def authenticated?(password)
    crypted_password == encrypt(password)
  end

  def remember_token?
    remember_token_expires_at && Time.now.utc < remember_token_expires_at
  end

  # These create and unset the fields required for remembering users between browser closes
  def remember_me
    remember_me_for 2.weeks
  end

  def remember_me_for(time)
    remember_me_until time.from_now.utc
  end

  def remember_me_until(time)
    self.remember_token_expires_at = time
    self.remember_token            = encrypt("#{email}--#{remember_token_expires_at}")
    save(false)
  end

  def forget_me
    self.remember_token_expires_at = nil
    self.remember_token            = nil
    save(false)
  end

  # Returns true if the user has just been activated.
  def recently_activated?
    @activated
  end

  protected
    # before filter
    def encrypt_password
      return if password.blank?
      self.salt = Digest::SHA1.hexdigest("--#{Time.now.to_s}--#{login}--") if new_record?
      self.crypted_password = encrypt(password)
    end

    def password_required?
      crypted_password.blank? || !password.blank?
    end
end


## View (html_rails)
<div id="right-menu">
	<%= render_partial '/partials/user_menu' %>
</div>
<div id="content">
	<h2>Edit Profile Information</h2><br />
	<%= error_messages_for :driver %>
	<% form_for :driver, :url => driver_url(@driver), :html => { :method => :put } do |f| -%>
	<p><%= f.label :login, "Login" %><br/>
		<%= f.text_field :login %></p>

	<p><%= f.label :email, "Email" %><br/>
		<%= f.text_field :email %></p>

	<p><%= f.label :first_name, "First Name" %><br />
		<%= f.text_field :first_name %></p>

	<p><%= f.label :last_name, "Last Name" %><br />
		<%= f.text_field :last_name %></p>

	<p><%= f.label :city, "City" %><br />
		<%= f.text_field :city %></p>

	<p><%= f.label :state, "State" %><br />
		<%= f.select(:state, [
			['Select a State', ''],
			#giant list of states...
			]) %></p>

	<p><%= label :zip, "Zip Code" %><br />
		<%= f.text_field :zip %></p>

	<p><%= submit_tag 'Update Profile' %></p>
	<% end -%>
</div>

## Controller
class DriversController < ApplicationController
  # render new.rhtml
  def new
  end

  def create
    cookies.delete :auth_token
    # protects against session fixation attacks, wreaks havoc with
    # request forgery protection.
    # uncomment at your own risk
    # reset_session
    @driver = Driver.new(params[:driver])
    @driver.save
    if @driver.errors.empty?
      self.current_driver = @driver
      redirect_back_or_default('/')
      flash[:notice] = "Thanks for signing up!"
    else
      render :action => 'new'
    end
  end

  def edit
    @driver = current_driver
  end

  def update
    @driver = current_driver
    @driver.attributes = params[:driver]

    if @driver.save
      flash[:notice] = "Update successful!"
    else
      render :action => 'edit'
    end
  end
end