clean_objects.rb

def clean_objects(relation)
  return relation if relation.is_a? Class

  without_dups = []

  relation.each do |obj|
    next if $exported[relation.class.name].include?(obj.id)
    user_obfuscator(obj) if obj.is_a? User
    product_images_sync(obj) if obj.is_a? Product
    user_profile_image_sync(obj) if obj.is_a? Profile
    $exported[relation.class.name] << obj.id
    without_dups << obj
  end

  without_dups
end