class Cloudinary::Migrator

def self.sample
  migrator = Cloudinary::Migrator.new(
    :retrieve=>proc{|id| Post.find(id).data},
    :complete=>proc{|id, result| a}
    )
  Post.find_each(:conditions=>["id > ?", migrator.max_given_id], :select=>"id") do
    |post|
    migrator.process(:id=>post.id, :public_id=>"post_#{post.id}")
  end
  migrator.done
end