image_recreator.rb

require File.expand_path("../../config/environment", __FILE__)

OLD_BASE_DIR = "public/system/uploads/object_model"
FALLBACK_PATH = "/images/fallback/default.png"

def copy(model, mounter_name)
  mounter = model.public_send(mounter_name)

  if mounter.to_s != FALLBACK_PATH
    basename = File.basename mounter.to_s
    return if basename =~ /#{mounter_name.to_s}\./

    old_path = [OLD_BASE_DIR, mounter_name.to_s, model.id, basename].join '/'

    old_file = File.open(old_path)

    model.public_send(:"#{mounter_name}=", old_file)
  end
end


ObjectModel.find_each do |o|
  copy o, :stack_image
  copy o, :short_info_image
  o.save!
end