# Send a public message.
  def post
    @message = Message.new params[:message]
    @message.user = current_user
    # FIXME: Move empty check to browser side.
    if @message.has_text? && @message.save
      notice_stickie "Your message posted." 
      # Publish notice to subscribers.
      # Put into before_create will rollback if fail.
      @message.subscribers << current_user
      @message.subscribers << current_user.followers
      # FIXME: Twitter Gem NoMethodError: status.rb:11:in `new_from_xml.
      # Twitter status update.
      # notice_stickie "Has Twitter? #{current_user.has_twitter?}"
      # notice_stickie "not Updated? #{message.not_updated?}"
      # message.twitter_push
    end
    redirect_to :back
  end