gitlabhq/app/uploaders/attachment_uploader.rb

# encoding: utf-8

class AttachmentUploader < CarrierWave::Uploader::Base
  storage :file

  def store_dir
    "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  end

  def image?
    %w(png jpg jpeg).include?(file.extension)
  end
end