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Posted By

abstraktor on 04/17/11


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relations rails3


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remove duplicates from Relations

 / Published in: Rails
 

Remove all duplicate Adresses from first User.

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  1. #app/models/user.rb
  2. class User < ActiveRecord::Base
  3.  has_many :adresses
  4. end
  5.  
  6. #app/models/adress.rb
  7. class Adress < ActiveRecord::Base
  8.  belongs_to :user
  9. end
  10.  
  11. #irb
  12. User.first.adresses.map do |address|
  13.  if liste.include? address
  14.   address.destroy
  15.  else
  16.   liste.push address
  17.  end
  18. end

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