Neos\Neos\Utility\User::slugifyUsername PHP Метод

    public static function slugifyUsername($username)
    {
        return preg_replace('/[^a-z0-9]/i', '', $username);
    }

 /**
  * @param Schema $schema
  * @return void
  */
 public function up(Schema $schema)
 {
     $this->abortIf($this->connection->getDatabasePlatform()->getName() != "postgresql");
     $workspacesWithoutOwnerQuery = $this->connection->executeQuery("SELECT name FROM typo3_typo3cr_domain_model_workspace t0 WHERE t0.name LIKE 'user-%' AND t0.owner = ''");
     $workspacesWithoutOwner = $workspacesWithoutOwnerQuery->fetchAll(\PDO::FETCH_ASSOC);
     if ($workspacesWithoutOwner === []) {
         return;
     }
     $neosAccountQuery = $this->connection->executeQuery('SELECT t0.party_abstractparty, t1.accountidentifier FROM typo3_party_domain_model_abstractparty_accounts_join t0 JOIN typo3_flow_security_account t1 ON t0.flow_security_account = t1.persistence_object_identifier WHERE t1.authenticationprovidername = \'Typo3BackendProvider\'');
     while ($account = $neosAccountQuery->fetch(\PDO::FETCH_ASSOC)) {
         $normalizedUsername = UserUtility::slugifyUsername($account['accountidentifier']);
         foreach ($workspacesWithoutOwner as $workspaceWithoutOwner) {
             if ($workspaceWithoutOwner['name'] === 'user-' . $normalizedUsername) {
                 $this->addSql('UPDATE typo3_typo3cr_domain_model_workspace SET owner = \'' . $account['party_abstractparty'] . '\' WHERE name = \'user-' . $normalizedUsername . '\'');
                 continue 2;
             }
         }
     }
 }