class RexJobMailer

def job_finished(job, opts = {})
  @job = job
  @subject = opts[:subject] || _('REX job has finished - %s') % @job.to_s
  if @job.user.nil?
    Rails.logger.warn 'Job user no longer exist, skipping email notification'
    return
  end
  mail(to: @job.user.mail, subject: @subject)
end