migration

gistfile1.txt

class RemoveOldDuplicatePhoneNumberReference < ActiveRecord::Migration

  def change
    #fetch all user and remove the cross reference for duplicate phone number
    User.real_users.find_in_batches.each(:batch_size => 100) do |batch|

      batch.each do |u|
        if u.annotations[:users_with_the_same_phone]

          # remove other users' reference who are associated with this user
          u.remove_reference_from_other_users_for_duplicate_phone

          #remove reference from self
          u.users_with_the_same_phone(reset:true)
          u.save validation:false
        end
      end
    end
  end
end