Sylius - How to assign a Channel to a Product programmatically? - symfony

Question

I am trying to assign a Channel to my products created programmatically, so they will be displayed on shop. Unfortunately, there is no documentation for this use case.
Here is how I create my products:
$productFactory = $this->container->get('sylius.factory.product');
$productManager = $this->container->get('sylius.manager.product');
$productRepository = $this->get('sylius.repository.product');
$productVariantFactory = $this->get('sylius.factory.product_variant');
$productVariantRepository = $this->get('sylius.repository.product_variant');
$channelPricingFactory = $this->get('sylius.factory.channel_pricing');
$channelPricingRepository = $this->get('sylius.repository.channel_pricing');
//CREATE PRODUCT
$product = $factory->createNew();
$product->setName('TEST 2 - '.$title);
$product->setCode($this->generateRandomString());
$product->setSlug($this->generateRandomString());
$productRepository->add($product);
//CREATE VARIANT & ATTACH IT TO PRODUCT
$variant = $productVariantFactory->createNew();
$variant->setName('TEST 2 - '.$title);
$variant->setCode($this->generateRandomString());
$variant->setProduct($product);
$productVariantRepository->add($variant);
//CREATE PRICE & ATTACH IT TO VARIANT
$channelPricing = $channelPricingFactory->createNew();
$channelPricing->setPrice(999);
$channelPricing->setOriginalPrice(999);
$channelPricing->setChannelCode('US_WEB');
$channelPricing->setProductVariant($variant);
$channelPricingRepository->add($channelPricing);
Unfortunately, the products are not linked to a Channel:

Answer 1

The answer to your question:
You have one product variant, but Product variant implements ProductVariantInterface which extends TranslatableInterface. So we need one translation to make it appear and work. To add the translation:
$productVariant->setCurrentLocale('fr_FR');
$productVariantTranslation = $productVariant->getTranslation();
or
$productVariantTranslation = $productVariant->getTranslation($locale);
after you can add a name or not:
$productVariantTranslation->setName('What a product variant!');
after:
$product->addVariant($productVariant);
$this->entityManager->persist($product);
You will have your product variant on line.
Another thing is that:
$channelPricingRepository = $this->get('sylius.repository.channel_pricing');
$channelPricingRepository->add($entity);
it's going to flush directly data to DB in each call. In the example you are going to flush 3 times instead only one. In bigger proccess with many "add" this can be a lack of performance. You can simply;
$this->entityManager->persist($entity); //Many times
$this->entityManager->flush();

Answer 2

Here is how I managed to create my products (to attach them then to my entities):
function createProduct($livre,$options){
$title = $livre['title'];
$prix = $livre['prix'];
// SYLIUS REPOSITORIES LOAD
$productFactory = $options['sylius_factory_product'];
$productRepository = $options['sylius_repository_product'];
$productVariantFactory = $options['sylius_factory_product_variant'];
$productVariantRepository = $options['sylius_repository_product_variant'];
$channelPricingFactory = $options['sylius_factory_channel_pricing'];
$channelPricingRepository = $options['sylius_repository_channel_pricing'];
//CREATE PRODUCT
$product = $productFactory->createNew();
$product->setName($title);
$product->setCode($title.'_'.$this->generateRandomString());
$product->setSlug($title.'_'.$this->generateRandomString());
$productRepository->add($product);
//CREATE VARIANT & ATTACH IT TO PRODUCT
$variant = $productVariantFactory->createNew();
$variant->setName($title. 'Variant');
$variant->setCode($title.'_'.$this->generateRandomString());
$variant->setProduct($product);
$productVariantRepository->add($variant);
//CREATE PRICE & ATTACH IT TO VARIANT
$channelPricing = $channelPricingFactory->createNew();
$channelPricing->setPrice($prix*100);
$channelPricing->setOriginalPrice($prix*100);
$channelPricing->setChannelCode('CH');
$channelPricing->setProductVariant($variant);
$channelPricingRepository->add($channelPricing);
$productId = $product->getId();
return $productId;
}

Answer 3

I added the channel to the product like this:
$channelCode = 'US_WEB'
$channelRepository = $this->get('sylius.repository.channel');
$channel = $channelRepository->findOneBy(array('code' => $channelCode));
$product->addChannel($channel);