def new
      @news = News.new
      @news.assets.build
      @news.category = Category.find params[:category_id]
      
      respond_to do |format|
        format.html # new.html.erb
        format.json { render json: @news }
      end
    end
def new
      @news = News.new
      @news.assets.build
      @news.category = Category.find params[:category_id]
      
      respond_to do |format|
        format.html # new.html.erb
        format.json { render json: @news }
      end
    end
GET /news/new
 GET /news/new.json