class Publication include Mongoid::Document include Mongoid::Timestamps include OrbitModel::Status include OrbitTag::Taggable include OrbitCategory::Categorizable include Slug field :title, type: String, localize: true field :pub_date, type: DateTime field :author, type: String, localize: true field :author_description, type: String, localize: true field :pub_information, localize: true mount_uploader :cover, ImageUploader field :cover_description, type: String field :is_external_link, :type => Boolean, :default => false field :external_link field :is_online_flipping_reader, :type => Boolean, :default => false has_many :full_files, :dependent => :destroy, :class_name => "PublicationFile" has_many :publication_links, :autosave => true, :dependent => :destroy accepts_nested_attributes_for :full_files, :allow_destroy => true accepts_nested_attributes_for :publication_links, :allow_destroy => true has_many :chapters, dependent: :destroy def full_file full_files[0] end end