flack / midgard-portable

        $qb = connection::get_em()->createQueryBuilder();

        $qb->from(get_class($this), 'c');

        $conditions = $qb->expr()->andX();

        if ($this->id) {

            $parameters = array(

                'id' => $this->id

            );

            $conditions->add($qb->expr()->neq('c.id', ':id'));

        }

        $found = false;

        foreach ($this->cm->midgard['unique_fields'] as $field) {

            if (empty($this->$field)) {

                //empty names automatically pass according to Midgard logic

                continue;

            'authtype' => $this->authtype

        );

        if ($this->id) {

            $parameters['id'] = $this->id;

            $conditions->add($qb->expr()->neq('c.id', ':id'));

        }

        $conditions->add($qb->expr()->eq('c.login', ':login'));

        $conditions->add($qb->expr()->eq('c.authtype', ':authtype'));

        $qb->where($conditions)