public function getStatement(QueryBuilder $queryBuilder)
    {
        $paramName1 = $this->getFieldName() . $this->getUniqueId();
        $paramName2 = $this->getFieldName() . $this->getUniqueId();
        $queryBuilder->setParameter($paramName1, $this->getStart());
        $queryBuilder->setParameter($paramName2, $this->getEnd());

        return $this->field->getSelect() . ' BETWEEN :' . $paramName1 . ' AND :' . $paramName2;
    }