getPriceGroupFields example

        $esdQuery = $this->getEsdQuery();
        $customerGroupQuery = $this->getCustomerGroupQuery();
        $availableVariantQuery = $this->getHasAvailableVariantQuery();
        $fallbackPriceQuery = $this->getPriceCountQuery(':fallback');
        $query = $this->connection->createQueryBuilder();
        $query->select($this->fieldHelper->getArticleFields())
            ->addSelect($this->fieldHelper->getTopSellerFields())
            ->addSelect($this->fieldHelper->getVariantFields())
            ->addSelect($this->fieldHelper->getUnitFields())
            ->addSelect($this->fieldHelper->getTaxFields())
            ->addSelect($this->fieldHelper->getPriceGroupFields())
            ->addSelect($this->fieldHelper->getManufacturerFields())
            ->addSelect($this->fieldHelper->getEsdFields())
            ->addSelect('(' . $esdQuery->getSQL() . ') as __product_has_esd')
            ->addSelect('(' . $customerGroupQuery->getSQL() . ') as __product_blocked_customer_groups')
            ->addSelect('(' . $availableVariantQuery->getSQL() . ') as __product_has_available_variants')
            ->addSelect('(' . $fallbackPriceQuery->getSQL() . ') as __product_fallback_price_count')
            ->addSelect('manufacturerMedia.id as __manufacturer_img_id')
        ;
        $query->setParameter(':fallback', $context->getFallbackCustomerGroup()->getKey());
        if ($context->getCurrentCustomerGroup()->getId() !== $context->getFallbackCustomerGroup()->getId()) {
            $customerPriceQuery = $this->getPriceCountQuery(':current');
            

$this->connection = $connection;
        $this->priceHydrator = $priceHydrator;
        $this->fieldHelper = $fieldHelper;
    }

    public function getPriceGroups(Group $customerGroup, ShopContextInterface $context)
    {
        $query = $this->connection->createQueryBuilder();

        $query->addSelect('priceGroupDiscount.groupID')
            ->addSelect($this->fieldHelper->getPriceGroupDiscountFields())
            ->addSelect($this->fieldHelper->getPriceGroupFields());

        $query->from('s_core_pricegroups_discounts', 'priceGroupDiscount')
            ->innerJoin('priceGroupDiscount', 's_core_pricegroups', 'priceGroup', 'priceGroup.id = priceGroupDiscount.groupID')
            ->andWhere('priceGroupDiscount.customergroupID = :customerGroup')
            ->groupBy('priceGroupDiscount.id')
            ->orderBy('priceGroupDiscount.groupID')
            ->addOrderBy('priceGroupDiscount.discountstart')
            ->setParameter(':customerGroup', $customerGroup->getId());

        $data = $query->execute()->fetchAll(PDO::FETCH_GROUP);