Concern for adding ability to serialize a model's table to create a seed_fu insert script

seed_fu_serializable.rb

module SeedFuSerializeable
  extend ActiveSupport::Concern

  included do
    define_method(:to_h) do
      h = attributes.keys.select{|k| k != "created_at" && k != "updated_at" }.map{|k| "#{k}: #{k}"}.join(', ')
      eval("{#{h}}")
    end
  end

  # I got the to_seed_fu from http://stackoverflow.com/questions/7951746/seed-fu-from-existing-database
  # I just wrapped it in a concern and tacked on a define to_h
  module ClassMethods
    def to_seed_fu(outfile=$stdout)
      SeedFu::Writer.write(outfile, { class_name: self.to_s, constraints: [:id]}) do |writer|
        all.order(:id).each do |obj|
          writer.add(obj.to_h)
        end
      end
    end
  end
end

I found myself needing to update Sqlite3 and MySql databases from a PostgreSQL db. About 2 mins into writing a script to make my sql dump generic I thought what I really need is a generic data inserter like seed_fu. This lead to some Googling and to me writing the above concern. I've made a few project specific modifications since then but this is the original.