# frozen_string_literal: true module Expirable extend ActiveSupport::Concern DAYS_TO_EXPIRE = 7 included do scope :not, ->(scope) { where(scope.arel.constraints.reduce(:and).not) } scope :expired, -> { where('expires_at IS NOT NULL AND expires_at <= ?', Time.current) } scope :not_expired, -> { self.not(expired) } end def expired? expires? && expires_at <= Time.current end # Used in subclasses that override expired? alias_method :expired_original?, :expired? def expires? expires_at.present? end def expires_soon? expires? && expires_at < DAYS_TO_EXPIRE.days.from_now end end