C:/instant_rails/InstantRails/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/base.rb:1857:in `method_missing'
#{RAILS_ROOT}/app/controllers/user_controller.rb:63:in `edit'


USER_CONTROLLER>RB

def edit
	  @title = "Edit your User Information"
	  @user = User.find(session[:user_id])
	  if param_posted?(:user)
		  attribute = params[:attribute]
		  case attribute
		  when "email"
		  try_to_update @user, attribute
		  when "password"
		  if @user.correct_password?(params)
			  try_to_update @user, attribute
			  else
				  @user.password_errors(params)
		  #Handle password submission
		  end
	    end
    end
    #For security purposes, never fill in the password fields.
    @user.clear_password
    end


USER.RB

 def correct_password?(params)
		   current_password = params[:user] [:current_password]
		   password == current_password
	   end

	   #Generate message for password errors.
	   def password_errors(params)
		   #Use User models valid? method to generate error message
		   #for a password mismatch (if any)
		   self.password = params[:user][:password]
		   self.password_confirmation = params[:user][:password_confirmation]
		   valid?
		   #The current password is incorrect, so add an error message.
		   errors.add(:current_password, "is incorrect")
		   end
	   end