seed-fu SeedOnce writer example

seed-fu-writer-sample.rb

    require 'seed-fu/writer'

    def write_seed_file output_file
      writer = SeedFu::Writer::SeedOnce.new(
        :seed_file  => output_file,
        :seed_model => User,
        :seed_by    => [:email],
        :quiet      => true
      )
      User.find_each do |user|
        writer.add_seed(
          user.attributes.except(*%w'id created_at updated_at')
        )
      end
    ensure
      writer.finish
    end