Contents

class PageSweeper < ActionController::Caching::Sweeper
  observe Page, Slug

  def after_save model
    expire_cache model
  end

  def after_destroy model
    expire_cache model
  end

  private
  
    def expire_cache model
      case model.class.name.to_s
      when "Page"
        # only expire latest slug
        # in case title changes, it will trigger the expire_slug function from the observer
        purge "/#{model.slug.name}"
        
        # expire all cache if we change root page
        purge nil, true if (model.root?)
      when "Slug"
        # expire from parent level down
        expire_parent_and_descendants model
      end
    end

    private
    
    # expire the parent directory and page
    def expire_parent_and_descendants slug
      purge parent_slug(slug), true
    end
        
    def parent_slug slug
      if slug.sluggable_type == "Page"
        if slug.sluggable.root?
          slug
        else
          slug.sluggable.parent.slug.name
        end
      end
    end

end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
refinerycms-varnish-pages-0.0.1	lib/sweepers/page_sweeper.rb