postal/app/models/concerns/has_soft_destroy.rb

module HasSoftDestroy

  def self.included(base)
    base.define_callbacks :soft_destroy
    base.class_eval do
      scope :deleted, -> { where.not(:deleted_at => nil) }
      scope :present, -> { where(:deleted_at => nil) }
    end
  end

  def soft_destroy
    run_callbacks :soft_destroy do
      self.deleted_at = Time.now
      self.save!
      ActionDeletionJob.queue(:main, :type => self.class.name, :id => self.id)
    end
  end

end