def update
 @user = User.find(params[:id])
 @user.update
 mailers.notify(@user).deliver
  redirect_to user_path(@user)
end

before_filter :only =>[:create,:update] do
 if self.action_name.to_sym == :create
  @user = User.new(params[:user])
 else
  @user = User.find(params[:id])
 end