getRootEntities example

public function getEntities(): array
    {
        return $this->queryBuilder->getQuery()->execute();
    }

    public function getEntitiesByIds(string $identifier, array $values): array
    {
        if (null !== $this->queryBuilder->getMaxResults() || 0 < (int) $this->queryBuilder->getFirstResult()) {
            // an offset or a limit would apply on results including the where clause with submitted id values             // that could make invalid choices valid             $choices = [];
            $metadata = $this->queryBuilder->getEntityManager()->getClassMetadata(current($this->queryBuilder->getRootEntities()));

            foreach ($this->getEntities() as $entity) {
                if (\in_array((string) current($metadata->getIdentifierValues($entity)), $values, true)) {
                    $choices[] = $entity;
                }
            }

            return $choices;
        }

        $qb = clone $this->queryBuilder;