def add_space_to_cart
    @cart = find_cart
    @space = Space.find(params[:id])
    if verify_amca_user && !space.reserved
      @current_item = @cart.add_space(space)
      @res = Reservation.new(:user_id => @user.id,
                             :space_id => space.id,
                             :temp_res_datetime => Time.now)
      if @res.save
        @space.reserved = true
        @space.save
      end
    end
    @spaces = Space.find_available_spaces
    if request.xhr?
      render :text => 'works'
    else
      redirect_to_index
    end
  end