紅寶石命名空間混入方法

Question

我上課的命名空間，例如：

module SocialSearch 
    module Scrapers 
    class TwitterScraper 
     # ... 
    end 
    end 
end 

我想創造Scrapers的方法，將所有的類中的命名空間內，但不這樣做手工在include Scrapers每一個擴展給定它們在Scrapers名稱空間內的類。

謝謝！

Answer 1

SocialSearch::Scrapers.constants.each do 
    |k| k = SocialSearch::Scrapers.const_get(k) 
    k.extend(SocialSearch::Scrapers)if k.instance_of?(Class) 
end 

或

SocialSearch::Scrapers.constants.each do 
    |k| k = SocialSearch::Scrapers.const_get(k) 
    k.include(SocialSearch::Scrapers)if k.instance_of?(Class) 
end 

Answer 2

嘗試使用繼承：

class Scrapers 
    # your common methods for all scrapers 
end 

class TwitterScraper < Scrapers 
    # your twitter-related scraper setup; methods from Scrapers are visible here 
end 

class FacebookScraper < Scrapers 
    # your twitter-related scraper setup; methods from Scrapers are visible here 
end