DoctrineBuilder.php

    /**
     * get total records
     * 
     * @return integer 
     */
    public function getTotalRecords()
    {
        $qb = clone $this->queryBuilder;
        $this->_addSearch($qb);
        $qb->resetDQLPart('orderBy');

        $gb = $qb->getDQLPart('groupBy');
        if (empty($gb) || !in_array($this->fields['_identifier_'], $gb))
        {
            $qb->select(" count({$this->fields['_identifier_']}), (:postcode) distance ");

            return $qb->getQuery()->getSingleResult()[1];
        }
        else
        {
            $qb->resetDQLPart('groupBy');
            $qb->select(" count(distinct {$this->fields['_identifier_']}) ");
            return $qb->getQuery()->getSingleScalarResult();
        }
    }