archivable.rb

module Archivable
  extend ActiveSupport::Concern

  included do
    scope :archived, ->{ unscope(where: :archived_at).where.not(archived_at: nil) }
    scope :without_archived, ->{ where(archived_at: nil) }
    scope :with_archived, ->{ unscope(where: :archived_at) }
    default_scope { without_archived }
  end

  def archive!
    update_column(:archived_at, Time.zone.now)
    broadcast(:after_archive, self)
    broadcast("archive_#{broadcast_model_name_key}_successful", self)
  end

  def restore!
    update_column(:archived_at, nil)
    broadcast(:after_restore, self)
    broadcast("restore_#{broadcast_model_name_key}_successful", self)
  end

  def archived?
    archived_at?
  end

end