在这种情况下如何调用 Rails Sweeper？

发布于 2024-12-28 10:06:23 字数 929 浏览 2 评论 0原文

从下面的代码可以看出。我正在缓存 show 操作。我在显示操作 View.create_for(@song) 中也有以下方法。

我想做到这一点，当调用 View.create_for(@song) 时，它会清除相应的缓存。

我该怎么办呢？我是否必须在 View 模型中手动调用 Rails Sweeper？如果是这样，怎么办？

我的控制器：

class SongsController < ApplicationController
  caches_action :show, :cache_path => (proc do 
    song_path(params[:id], :user_id => user_signed_in? ? current_user.id : nil)
  end)

  # I tried with the following line, but this is not what I want. I only want to call the sweeper when `View.create_for(@song)` is called:
  # cache_sweeper :views_sweeper, :only => [:show]

  def show
    @song = Song.find(params[:id])
    View.create_for(@song)
  end
end

我的扫地机：

class SongsSweeper < ActionController::Caching::Sweeper
  observe Song

  def after_save(song)
    expire_fragment(/songs\/#{song.id}\/.*?/)
  end
end

原文

As you can see from code below. I am caching the show action. I also have the following method in the show action View.create_for(@song).

I would like to make it so, when View.create_for(@song) is called, it clears out the respective cache.

How would I go about this? Do I have to manually invoke the rails sweeper in the View model? If so, how?

My controller:

class SongsController < ApplicationController
  caches_action :show, :cache_path => (proc do 
    song_path(params[:id], :user_id => user_signed_in? ? current_user.id : nil)
  end)

  # I tried with the following line, but this is not what I want. I only want to call the sweeper when `View.create_for(@song)` is called:
  # cache_sweeper :views_sweeper, :only => [:show]

  def show
    @song = Song.find(params[:id])
    View.create_for(@song)
  end
end

My Sweeper:

class SongsSweeper < ActionController::Caching::Sweeper
  observe Song

  def after_save(song)
    expire_fragment(/songs\/#{song.id}\/.*?/)
  end
end

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栀子花开つ 2025-01-04 10:06:23

我认为你应该指ongs_sweeper，而不是views_sweeper：

cache_sweeper :songs_sweeper, :only => [:show]

我不确定你的要求，但你也可以通过将after_save更改为after_create来在SongsSweeper中更具体：

class SongsSweeper < ActionController::Caching::Sweeper
  observe Song

  def after_create(song)
    expire_fragment(/songs\/#{song.id}\/.*?/)
  end
end

I think you should be referring to the songs_sweeper, not the views_sweeper:

cache_sweeper :songs_sweeper, :only => [:show]

I'm not sure of your requirements, but you could also be more specific in your SongsSweeper by changing after_save to after_create:

class SongsSweeper < ActionController::Caching::Sweeper
  observe Song

  def after_create(song)
    expire_fragment(/songs\/#{song.id}\/.*?/)
  end
end

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