af23me

def encode_hash(hashie)
  Hash[
      hashie.collect do |k, v|
        if (v.is_a?(Hash))
          [ k, encode_hash(v) ]
        elsif (v.respond_to?(:encoding))
          [ k, v.dup.force_encoding('UTF-8').encode('UTF-16', {invalid: :replace, undef: :replace, replace: '?'}).encode('UTF-8') ]           
        elsif (v.respond_to?(:to_utf8))
          [ k, v.to_utf8 ]
        else

af23me

  def merge_hash_recursively(first_hash, second_hash)
    first_hash.merge(second_hash) { |key, a_item, b_item| merge_hash_recursively(a_item, b_item) }
  end

af23me

require 'fileutils'

class PaperclipCleaner

  class << self

    def clean(parent_resource_id)
      book_images = ImageModel.where(parent_resource_id: parent_resource_id).to_a

      images.each do |image_object|