module MemberCleanCache
  extend ActiveSupport::Concern

  included do
    def destroy_cache
      if self.class==Page
        MemberIndexCache.where(page_id: self.id).destroy_all
      else
        MemberIndexCache.all.destroy_all
      end
    end
    after_save do
      self.destroy_cache
    end
    before_destroy do
      self.destroy_cache
    end
  end
end