/**
  * Deactivate a domain record by hostname
  *
  * @param string $hostname The hostname to deactivate
  * @return void
  */
 public function deactivateCommand($hostname)
 {
     $domain = $this->domainRepository->findOneByHostname($hostname);
     if (!$domain instanceof Domain) {
         $this->outputLine('<error>Domain not found.</error>');
         $this->quit(1);
     }
     $domain->setActive(false);
     $this->domainRepository->update($domain);
     $this->outputLine('Domain entry deactivated.');
 }