adbanner-test/app/controllers/admin/ad_banners_controller.rb

class Admin::AdBannersController < ApplicationController
  def index
  	@ad_banners = Banner.all
  end

  def show
  	@ad_banners = Banner.all
    @active = Banner.find(params[:id])
    render :action => 'index'
  end

  def new
  	@ad_banner = Banner.new
  end

  def create
  	@ad_banner = Banner.new(banner_params)
  	@ad_banner.save
    render "index"
  end

  private

  # Never trust parameters from the scary internet, only allow the white list through.
  def banner_params
    params.require(:banner).permit(:ad_fx, :height, :speed, :title, :timeout, :width)
  end
end