ApiPlatform\Core\Bridge\Doctrine\Orm\Util\QueryNameGeneratorInterface::generateParameterName PHP Метод

    public function generateParameterName(string $name) : string;

 /**
  * Adds the where clause according to the chosen null management.
  *
  * @param QueryBuilder                $queryBuilder
  * @param QueryNameGeneratorInterface $queryNameGenerator
  * @param string                      $alias
  * @param string                      $field
  * @param string                      $operator
  * @param string                      $value
  * @param string|null                 $nullManagement
  */
 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));
 }