module CarrierWave::DataMapper

# File lib/carrierwave/orm/datamapper.rb, line 12
def mount_uploader(column, uploader, options={}, &block)
  super

  alias_method :read_uploader, :attribute_get
  alias_method :write_uploader, :attribute_set
  after :save, "store_#{column}!".to_sym
  pre_hook = ::DataMapper.const_defined?(:Validate) ? :valid? : :save
  before pre_hook, "write_#{column}_identifier".to_sym
  after :destroy, "remove_#{column}!".to_sym

  # FIXME: Hack to work around Datamapper not triggering callbacks
  # for objects that are not dirty. By explicitly calling
  # attribute_set we are marking the record as dirty.
  class_eval <<-RUBY
    def remove_image=(value)
      _mounter(:#{column}).remove = value
      attribute_set(:#{column}, '') if _mounter(:#{column}).remove?
    end
  RUBY
end