class ArchiveFileMultiple include Mongoid::Document include Mongoid::Timestamps mount_uploader :file, AssetUploader field :file_title, localize: true # field :description field :download_count, type: Integer, default: 0 field :choose_lang, :type => Array, :default => I18n.available_locales.map{|l| l.to_s} field :should_destroy, :type => Boolean field :sort_number, :type => Integer # default_scope asc(:sort_number) def choose_lang_display(lang) self.choose_lang.include?(lang) end belongs_to :archive_file, index: true # has_many :archive_file_multiple_langs, :autosave => true, :dependent => :destroy # accepts_nested_attributes_for :archive_file_multiple_langs, :allow_destroy => true end