How is a product loaded for a frontend product view?

dmitrii_fediuk · February 26, 2016, 3:09pm

magento/magento2/blob/cf7df72/app/code/Magento/Catalog/Controller/Product/View.php#L67-L72


/**
 * Product view action
 *
 * @return \Magento\Framework\Controller\Result\Forward|\Magento\Framework\Controller\Result\Redirect
 */
public function execute()

github.com

magento/magento2/blob/cf7df72/app/code/Magento/Catalog/Controller/Product/View.php#L109-L109


$this->viewHelper->prepareAndRender($page, $productId, $this, $params);

github.com

magento/magento2/blob/cf7df72/app/code/Magento/Catalog/Helper/Product/View.php#L170-L187


/**
 * Prepares product view page - inits layout and all needed stuff
 *
 * $params can have all values as $params in \Magento\Catalog\Helper\Product - initProduct().
 * Plus following keys:
 *   - 'buy_request' - \Magento\Framework\DataObject holding buyRequest to configure product
 *   - 'specify_options' - boolean, whether to show 'Specify options' message
 *   - 'configure_mode' - boolean, whether we're in Configure-mode to edit product configuration
 *
 * @param \Magento\Framework\View\Result\Page $resultPage
 * @param int $productId
 * @param \Magento\Framework\App\Action\Action $controller
 * @param null|\Magento\Framework\DataObject $params
 * @throws \Magento\Framework\Exception\LocalizedException
 * @throws \Magento\Framework\Exception\NoSuchEntityException
 * @return \Magento\Catalog\Helper\Product\View
 */
public function prepareAndRender(ResultPage $resultPage, $productId, $controller, $params = null)

github.com

magento/magento2/blob/cf7df72/app/code/Magento/Catalog/Helper/Product/View.php#L212-L212


$product = $productHelper->initProduct($productId, $controller, $params);

github.com

magento/magento2/blob/cf7df72/app/code/Magento/Catalog/Helper/Product.php#L385-L399


/**
 * Inits product to be used for product controller actions and layouts
 * $params can have following data:
 *   'category_id' - id of category to check and append to product as current.
 *     If empty (except FALSE) - will be guessed (e.g. from last visited) to load as current.
 *
 * @param int $productId
 * @param \Magento\Framework\App\Action\Action $controller
 * @param \Magento\Framework\DataObject $params
 *
 * @return bool|ModelProduct
 * @SuppressWarnings(PHPMD.CyclomaticComplexity)
 * @SuppressWarnings(PHPMD.NPathComplexity)
 */
public function initProduct($productId, $controller, $params = null)

github.com

magento/magento2/blob/cf7df72/app/code/Magento/Catalog/Helper/Product.php#L417-L417


$product = $this->productRepository->getById($productId, false, $this->_storeManager->getStore()->getId());

github.com

magento/magento2/blob/cf7df72/app/code/Magento/Catalog/Helper/Product.php#L81-L84


/**
 * @var ProductRepositoryInterface
 */
protected $productRepository;

github.com

magento/magento2/blob/cf7df72/app/code/Magento/Catalog/etc/di.xml#L10-L10


<preference for="Magento\Catalog\Api\ProductRepositoryInterface" type="Magento\Catalog\Model\ProductRepository" />

github.com

magento/magento2/blob/cf7df72/app/code/Magento/Catalog/Model/ProductRepository.php#L23-L23


class ProductRepository implements \Magento\Catalog\Api\ProductRepositoryInterface

github.com

magento/magento2/blob/cf7df72/app/code/Magento/Catalog/Api/ProductRepositoryInterface.php#L39-L49


/**
 * Get info about product by product id
 *
 * @param int $productId
 * @param bool $editMode
 * @param int|null $storeId
 * @param bool $forceReload
 * @return \Magento\Catalog\Api\Data\ProductInterface
 * @throws \Magento\Framework\Exception\NoSuchEntityException
 */
public function getById($productId, $editMode = false, $storeId = null, $forceReload = false);

github.com

magento/magento2/blob/cf7df72/app/code/Magento/Catalog/Model/ProductRepository.php#L205-L224


public function getById($productId, $editMode = false, $storeId = null, $forceReload = false)
{
    $cacheKey = $this->getCacheKey([$editMode, $storeId]);
    if (!isset($this->instancesById[$productId][$cacheKey]) || $forceReload) {
        $product = $this->productFactory->create();
        if ($editMode) {
            $product->setData('_edit_mode', true);
        }
        if ($storeId !== null) {
            $product->setData('store_id', $storeId);
        }
        $product->load($productId);
        if (!$product->getId()) {
            throw new NoSuchEntityException(__('Requested product doesn\'t exist'));
        }
        $this->instancesById[$productId][$cacheKey] = $product;
        $this->instances[$product->getSku()][$cacheKey] = $product;
    }
    return $this->instancesById[$productId][$cacheKey];
}

https://github.com/magento/magento2/blob/cf7df72/app/code/Magento/Catalog/Model/ProductRepository.php#L210-L216

dmitrii_fediuk · February 26, 2016, 3:33pm