Advanced Search

Configure some behaviour through a separete configuration class

/ Published in: Ruby
Save to your folder(s)

Expand | Embed | Plain Text

Copy this code and paste it in your HTML 
  1. # encoding = utf-8
  2.  
  3. # Lib
  4. module ObjectExtensions
  5.   def execute(&block)
  6.     Extension.new.execute(&block)
  7.   end
  8. end
  9.  
  10. class Parent
  11.   @@config = []
  12. end
  13.  
  14. class Extension < Parent
  15.   def execute(&block)
  16.     self.instance_eval(&block)
  17.   end
  18.  
  19.   def one;   puts @@config[0] end
  20.   def two;   puts @@config[1] end
  21.   def three; puts @@config[2] end
  22. end
  23.  
  24. Object.__send__(:include, ObjectExtensions)
  25.  
  26. class Config < Parent
  27.   class << self
  28.     def init
  29.       yield self
  30.     end
  31.  
  32.     def one
  33.       @@config << 'one'
  34.     end
  35.  
  36.     def two
  37.       @@config << 'two'
  38.     end
  39.  
  40.     def three
  41.       @@config << 'three'
  42.     end
  43.   end
  44. end
  45.  
  46. # Configurating
  47. Config.init do |c|
  48.   c.one   #=> set @@config[0] to 'one'
  49.   c.two   #=> set @@config[1] to 'two'
  50.   c.three #=> set @@config[2] to 'three'
  51. end
  52.  
  53. # Usage
  54. execute do
  55.   one   #=> one
  56.   two   #=> two
  57.   three #=> three
  58. end

Report this snippet


Comments

RSS Icon Subscribe to comments

You need to login to post a comment.