CarrierWave.configure do |config|

  config.cache_dir = File.join(Rails.root, 'tmp', 'uploads')

  case Rails.env.to_sym

  when :development
    config.storage = :file
    config.root = File.join(Rails.root, 'public')

  when :production
    # the following configuration works for Amazon S3
    config.storage              = :s3
    config.s3_access_key_id     = ENV['S3_KEY_ID']
    config.s3_secret_access_key = ENV['S3_SECRET_KEY']
    config.s3_bucket            = ENV['S3_BUCKET']
    # config.s3_cname           = ENV['S3_CNAME'] # optional

  else
    # settings for the local filesystem
    config.storage = :file
    config.root = File.join(Rails.root, 'public')
  end

end