action resource

post_actions_controller.rb

# app/controllers/post_actions_controller.rb
class PostActionsController < ApplicationController
  # POST /posts/:id/publish.json
  def publish
    if current_post.update(state: :publish, published_at: Time.zone.now)
      〜
    else
      〜
    end
  end

  # POST /posts/:id/hide.json
  def hide
    if current_post.update(state: :hide, published_at: nil)
      〜
    else
      〜
    end
  end

  private

  def current_post
    Post.find(params[:id])
  end
end

routes.rb

Rails.application.routes.draw do
  resources :posts do
    scope controller: :post_actions do
      member do
        post :publish
        post :hide
      end
    end
  end
end