demarches-normaliennes/app/models/piece_justificative.rb

class PieceJustificative < ActiveRecord::Base
  belongs_to :dossier
  belongs_to :type_de_piece_justificative

  delegate :api_entreprise, :libelle, to: :type_de_piece_justificative

  alias_attribute :type, :type_de_piece_justificative_id

  mount_uploader :content, PieceJustificativeUploader
  validates :content, :file_size => { :maximum => 3.megabytes }

  def empty?
    content.blank?
  end
end