rails ActiveRecord model record to yml fixture method

ActiveRecord2yml.rb

class ActiveRecord::Base
  def to_fixture
    output = {}
    model = self

    attrs = model.attributes.compact
    attrs.delete_if { |_k, v| v.nil? }

    attrs.each do |key, value|
      attrs[key] = value.to_time.utc if value.class == ActiveSupport::TimeWithZone
    end
          
    attrs = attrs.sort_by { |k, _v| k == 'id' ? '0' : k }.to_h
    output["#{model.class}_#{model.id}"] = attrs

    puts output.to_yaml
  end
end