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

class Admin::AdImagesController < ApplicationController
  def index
  	@ad_images = AdImage.all
  end

  def new
  	@ad_image = AdImage.new
  	@ad_banners = Banner.all
  end

  def create
  	@ad_image = AdImage.new(ad_image_params)
  	@ad_image.save
  	redirect_to admin_ad_images_path
  end

  private

  # Never trust parameters from the scary internet, only allow the white list through.
  def ad_image_params
    params.require(:ad_image).permit(:weight, :out_link, :link_open, :file, :file_cache, :banner_id, title_translations: [:en, :zh_tw], context_translations: [:en, :zh_tw])
  end
end