在Rails中,如何在Haml中使用RESTful控制器？

class PostsController< ApplicationController
  def index
    @posts = Post.all
  end

  def show
    @post = Post.find(params[:id])
  end

  def new
    @post = Post.new
  end

  def create
    @post = Post.new(post_params)
    if @post.save
      redirect_to @post
    else
      render 'new'
    end
  end

  private

  def post_params
    params.require(:post).permit(:title, :body)
  end
end

%h1 All Posts

= link_to 'New Post', new_post_path

- @posts.each do |post|
  %h2= link_to post.title, post_path(post)
  %p= post.body

%h1 New Post

= form_with model: @post, local: true do |form|
  = form.label :title
  = form.text_field :title

  = form.label :body
  = form.text_area :body

  = form.submit 'Create'

%h1= @post.title
%p= @post.body

= link_to 'Edit', edit_post_path(@post)
= link_to 'Back', posts_path