How is the «url_rewrite» table updated on a category save?

dmitry_fedyuk · March 20, 2016, 10:22am

magento/magento2/blob/2d82d1/app/code/Magento/CatalogUrlRewrite/etc/events.xml#L12-L14


<event name="catalog_category_save_after">
    <observer name="process_url_rewrite_saving" instance="Magento\CatalogUrlRewrite\Observer\CategoryProcessUrlRewriteSavingObserver"/>
</event>

github.com

magento/magento2/blob/2d82d1/app/code/Magento/CatalogUrlRewrite/Observer/CategoryProcessUrlRewriteSavingObserver.php#L39-L45


/**
 * Generate urls for UrlRewrite and save it in storage
 *
 * @param \Magento\Framework\Event\Observer $observer
 * @return void
 */
public function execute(\Magento\Framework\Event\Observer $observer)

github.com

magento/magento2/blob/2d82d1/app/code/Magento/CatalogUrlRewrite/Observer/CategoryProcessUrlRewriteSavingObserver.php#L46-L59


{
    /** @var Category $category */
    $category = $observer->getEvent()->getCategory();
    if ($category->getParentId() == Category::TREE_ROOT_ID) {
        return;
    }
    if ($category->dataHasChangedFor('url_key') || $category->getIsChangedProductList()) {
        $urlRewrites = array_merge(
            $this->categoryUrlRewriteGenerator->generate($category),
            $this->urlRewriteHandler->generateProductUrlRewrites($category)
        );
        $this->urlPersist->replace($urlRewrites);
    }
}

github.com

magento/magento2/blob/2d82d1/app/code/Magento/CatalogUrlRewrite/Model/CategoryUrlRewriteGenerator.php#L65-L77


public function generate($category, $overrideStoreUrls = false)
{
    $this->category = $category;
    $this->overrideStoreUrls = $overrideStoreUrls;


    $storeId = $this->category->getStoreId();
    $urls = $this->isGlobalScope($storeId)
        ? $this->generateForGlobalScope()
        : $this->generateForSpecificStoreView($storeId);


    $this->category = null;
    return $urls;
}

github.com

magento/magento2/blob/2d82d1/app/code/Magento/CatalogUrlRewrite/Model/CategoryUrlRewriteGenerator.php#L79-L92


/**
 * Generate list of urls for global scope
 *
 * @return \Magento\UrlRewrite\Service\V1\Data\UrlRewrite[]
 */
protected function generateForGlobalScope()
{
    $urls = [];
    $categoryId = $this->category->getId();
    foreach ($this->category->getStoreIds() as $storeId) {
        if (!$this->isGlobalScope($storeId)
            && $this->isOverrideUrlsForStore($storeId, $categoryId)
        ) {
            $this->updateCategoryUrlForStore($storeId);

github.com

magento/magento2/blob/2d82d1/app/code/Magento/CatalogUrlRewrite/Model/CategoryUrlRewriteGenerator.php#L113-L119


/**
 * Override url key and url path for category in specific Store
 *
 * @param int $storeId
 * @return void
 */
protected function updateCategoryUrlForStore($storeId)

github.com

magento/magento2/blob/2d82d1/app/code/Magento/CatalogUrlRewrite/Model/CategoryUrlRewriteGenerator.php#L120-L123


{
    $category = $this->categoryRepository->get($this->category->getId(), $storeId);
    $this->category->addData(['url_key' => $category->getUrlKey(), 'url_path' => $category->getUrlPath()]);
}

github.com

magento/magento2/blob/2d82d1/app/code/Magento/Catalog/Model/Category.php#L1201-L1207


/**
 * @return string|null
 */
public function getUrlKey()
{
    return $this->getData('url_key');
}

github.com

magento/magento2/blob/2d82d1/app/code/Magento/CatalogUrlRewrite/Model/CategoryUrlRewriteGenerator.php#L93-L93


$urls = array_merge($urls, $this->generateForSpecificStoreView($storeId));

github.com

magento/magento2/blob/2d82d1/app/code/Magento/CatalogUrlRewrite/Model/CategoryUrlRewriteGenerator.php#L136-L150


/**
 * Generate list of urls per store
 *
 * @param string $storeId
 * @return \Magento\UrlRewrite\Service\V1\Data\UrlRewrite[]
 */
protected function generateForSpecificStoreView($storeId)
{
    $urls = array_merge(
        $this->canonicalUrlRewriteGenerator->generate($storeId, $this->category),
        $this->childrenUrlRewriteGenerator->generate($storeId, $this->category),
        $this->currentUrlRewritesRegenerator->generate($storeId, $this->category)
    );
    return $urls;
}

Bug: an extra leading slash is added to the category URL keys