无法在轨道上过期

Question

tl; dr

下面的expire_index方法被调用，我在日志中看到了puts。但是，当我刷新时，页面是陈旧版本。

注意：我正在使用Rails_admin来更新模型。但也直接使用Rails控制台注意到了相同的行为。

感谢您的帮助。非常感谢！

详细信息

app/controllers/posts_controller.rb

class PostsController < ApplicationController
  caches_action :index
  cache_sweeper :post_sweeper
  def index
    @posts = Post.published
  end
  def show
    @post = Post.find(params[:id])
   end
end

app/sweepers/post_sweeper.rb

class PostSweeper < ActionController::Caching::Sweeper
  observe Post
  def after_save(post)
    puts "======================"
    puts "      AFTER SAVE      "
    puts "======================"
    expire_index
  end
  private
  def expire_index
    puts "======================"
    puts "   EXPIRING INDEX     "
    puts "======================"
    expire_action(:controller => '/posts', :action => 'index')
  end
end

config/environments/production.rb

config.action_controller.perform_caching = true
config.cache_store = :dalli_store # using memcachier on heroku

Answer 1

使它起作用。这就是所需要的：

def expire_index
  cache_key = "views/#{request.host_with_port}/posts"
  Rails.cache.delete(cache_key)
end

有关此要约的更多详细信息 -> https：//gist.github.com/4400728