Trick to make activerecord-import work with refile

importer.rb

brands = []

brand = Brand.new
brand.name = "Harry's"
brand.remote_logo_url = "http://example.com/image.png" # store file in cache and give it an ID
brand.logo_attacher.store! # force refile to fill logo_id attribute without .save

brands << brand

# Bulk import all of the brands at once. NO CALLBACKS!
Brand.import brands