ActionController :: UrlGenerationError: Маршрут не соответствует {: action => "show",: controller => "posts"}

Question

Я пытаюсь сгенерировать карту сайта автоматически, используя гем sitemap_generator. Я попытался добавить действие show, так как начал получать ошибку. Первоначально он был пустым ..

Ниже следует мой контроллер сообщений :

class PostsController < ApplicationController
  before_filter :authorize, only: [:edit, :update, :new, :create, :destroy]
  before_filter :find_post, only: [:show, :edit, :update, :destroy]

  def index
    @posts = Post.order("created_at DESC").page(params[:page]).per(9)

    respond_to do |format|
      format.html
      format.rss { render :layout =>false }
    end
  end

  def show
    @posts = Post.all

  end

  def new
    @post = Post.new
  end

  def create
    @post = Post.new(post_params)

    if @post.save
      redirect_to posts_url
    else
      render 'new'
    end
  end

  def edit

  end

  def update
    if @post.update_attributes(post_params)
      redirect_to post_url(@post), notice: "#{@post.title} Updated"
    else
      render 'edit'
    end
  end

  def destroy
    @post.destroy

    redirect_to posts_url, notice: "#{@post.title} Deleted"
  end

  private

  def post_params
    params.require(:post).permit(:title,  :contents, :author_id, :approved, :summary, :preview_image_id, :category, :social_title, :blog_title)
  end

  def find_post
    @post = Post.friendly.find(params[:id])

    # If an old id or a numeric id was used to find the record, then
    # the request path will not match the post_path, and we should do
    # a 301 redirect that uses the current friendly id.
    if params[:action] == 'show' && request.path != post_path(@post)
      return redirect_to @post, :status => :moved_permanently
    end
  end



end

rout.rb

Rails.application.routes.draw do
    root to: "home#index"
    resources :posts do
      resources :comments
    end  
end

sitemap.rb

Post.friendly.find_each do |post|
    add post_url(post), :lastmod => post.created_at
  end

Я пробовал как с «дружественным», так и без «дружественного».

и при запуске rake sitemap:refresh я получаю следующую ошибку Ubuntu: ~ / environment / site (master) $ rake карта сайта: refre sh

In '/home/ubuntu/environment/site/public/':
  Post Load (0.6ms)  SELECT  "posts".* FROM "posts"   ORDER BY "posts"."id" ASC LIMIT 1000
rake aborted!
ActionController::UrlGenerationError: No route matches {:action=>"show", :controller=>"posts", :format=>nil, :id=>nil, :locale=>#<Post id: 1, title: "4 Tips For Managing Your Maintenance Team", contents: "<p>Maintenance teams are a special kind of problem...", approved: nil, created_at: "2020-03-30 16:17:28", updated_at: "2020-05-04 17:07:30", url: nil, blog_title: "4 Tips For Managing Your Maintenance Team">} missing required keys: [:id]