ApiPlatform\Core\Bridge\Doctrine\Orm\Filter\DateFilter::addWhere PHP Method

    protected function addWhere(QueryBuilder $queryBuilder, QueryNameGeneratorInterface $queryNameGenerator, string $alias, string $field, string $operator, string $value, string $nullManagement = null)
    {
        $valueParameter = $queryNameGenerator->generateParameterName($field);
        $baseWhere = sprintf('%s.%s %s :%s', $alias, $field, self::PARAMETER_BEFORE === $operator ? '<=' : '>=', $valueParameter);
        if (null === $nullManagement || self::EXCLUDE_NULL === $nullManagement) {
            $queryBuilder->andWhere($baseWhere);
        } elseif (self::PARAMETER_BEFORE === $operator && self::INCLUDE_NULL_BEFORE === $nullManagement || self::PARAMETER_AFTER === $operator && self::INCLUDE_NULL_AFTER === $nullManagement) {
            $queryBuilder->andWhere($queryBuilder->expr()->orX($baseWhere, $queryBuilder->expr()->isNull(sprintf('%s.%s', $alias, $field))));
        } else {
            $queryBuilder->andWhere($queryBuilder->expr()->andX($baseWhere, $queryBuilder->expr()->isNotNull(sprintf('%s.%s', $alias, $field))));
        }
        $queryBuilder->setParameter($valueParameter, new \DateTime($value));
    }