我可以像在包含的模块中那样直接调用实例方法吗？

Question

如果可以，如何在included module中直接调用或rebuild SomePluggin class调用get_content方法，减少get_content中的冗余Pluggin 模块?

module Cms
  class SomePluggin
    def get_content
      puts "please call me directly"
    end
  end

  module Pluggin
    extend ActiveSupport::Concern

    included do
      after_initialize :pluggin
    end

    attr_writer :pluggin

    def pluggin
      @pluggin ||= SomePluggin.new
    end

    def get_content # Is there any possibility to do this directly?
      pluggin.get_content
    end
  end
end

Answer 1

您可以 delegate get_content 调用 pluggin:

module Pluggin
  delegate :get_content, to: :pluggin
  # ...
end