/**
     * Get recommend product by display status of product.
     *
     * @return array
     */
    public function getRecommendProduct()
    {
        $query = $this->createQueryBuilder('rp')
            ->innerJoin('Eccube\Entity\Product', 'p', 'WITH', 'p.id = rp.Product')
	　　->innerJoin('Eccube\Entity\ProductCategory', 'c', 'WITH', 'c.product_id = rp.Product')
            ->where('p.Status = :Disp')
            ->andWhere('rp.visible = true')
	　　->andWhere('c.category_id = 2')
            ->orderBy('rp.sort_no', 'DESC')
	　　->setMaxResults(1)
            ->setParameter('Disp', ProductStatus::DISPLAY_SHOW)
            ->getQuery();

        return $query->getResult();
    }