2021-07-19-refactor-cheapest-price-indexing.md

title	issue
Refactor CheapestPrice indexing	NEXT-16151

Core

• Changed \Shopware\Core\Content\Product\DataAbstractionLayer\CheapestPriceUpdater and \Shopware\Core\Content\Product\DataAbstractionLayer\CheapestPrice\CheapestPriceContainer to add default product price only once to CheapestPriceStruct.
• Added CheapestPriceField to \Shopware\Core\Content\Product\SalesChannel\SalesChannelProductDefinition and the according getters and setters to \Shopware\Core\Content\Product\SalesChannel\SalesChannelProductEntity.
• Deprecated getCheapestPrice(), setCheapestPrice(), getCheapestPriceContainer() and setCheapestPriceContainer() methods on \Shopware\Core\Content\Product\ProductEntity, those methods will only be provided by the SalesChannelProductEntity.
• Changed \Shopware\Core\Content\Product\Subscriber\ProductSubscriber to resolve the CheapestPrice only for SalesChannelProductEntity.

---

Upgrade Information

Moved CheapestPrice to SalesChannelProductEntity

The CheapestPrice will only be resolved in SalesChannelContext, thus it moved from the basic ProductEntity to the SalesChannelProductEntity. If you rely on the CheapestPrice props of the ProductEntity in your plugin, make sure that you are in a SalesChannelContext and use the sales_channel.product.repository instead of the product.repository

Before

private EntityRepositoryInterface $productRepository;

public function custom(SalesChannelContext $context): void
{
    $products = $this->productRepository->search(new Criteria(), $context->getContext());
    /** @var ProductEntity $product */
    foreach ($products as $product) {
        $cheapestPrice = $product->getCheapestPrice();
        // do stuff with $cheapestPrice
    }
}

After

private SalesChannelRepositoryInterface $salesChannelProductRepository;

public function custom(SalesChannelContext $context): void
{
    $products = $this->salesChannelProductRepository->search(new Criteria(), $context);
    /** @var SalesChannelProductEntity $product */
    foreach ($products as $product) {
        $cheapestPrice = $product->getCheapestPrice();
        // do stuff with $cheapestPrice
    }
}