class ExternalCreatorship < ApplicationRecord
  belongs_to :external_author_name, inverse_of: :external_creatorships
  belongs_to :archivist, class_name: 'User', foreign_key: 'archivist_id'
  belongs_to :creation, polymorphic: true  , inverse_of: :external_creatorships
  
  def external_author=(external_author)
    self.external_author_name = external_author.try(:default_name)
  end
  
  def external_author
    self.external_author_name.try(:external_author)
  end
  
  def claimed?
    self.external_author_name.try(:external_author).try(:claimed?)
  end
  
  def to_s
    ts("%{title} by %{name}", title: self.creation.title, name: self.external_author_name)
  end
  
  def author_name
    self.external_author_name.try(:name) || ""
  end

end