How is the «catalog_product_save_after» event triggered and can be handled?

dmitry_fedyuk · April 13, 2016, 2:24pm

magento/magento2/blob/052e789/lib/internal/Magento/Framework/Model/AbstractModel.php#L802-L802


$this->_eventManager->dispatch($this->_eventPrefix . '_save_after', $this->_getEventData());

github.com

magento/magento2/blob/052e789/app/code/Magento/Catalog/Model/Product.php#L78-L81


/**
 * @var string
 */
protected $_eventPrefix = 'catalog_product';

How to handle it

Example 1

github.com

magento/magento2/blob/052e789/app/code/Magento/CatalogInventory/etc/events.xml#L39-L41


<event name="catalog_product_save_after">
    <observer name="inventory" instance="Magento\CatalogInventory\Observer\SaveInventoryDataObserver"/>
</event>

github.com

magento/magento2/blob/052e789/app/code/Magento/CatalogInventory/Observer/SaveInventoryDataObserver.php#L91-L106


/**
 * Saving product inventory data. Product qty calculated dynamically.
 *
 * @param EventObserver $observer
 * @return $this
 */
public function execute(EventObserver $observer)
{
    $product = $observer->getEvent()->getProduct();
    if ($product->getStockData() === null) {
        return $this;
    }


    $this->saveStockItemData($product);
    return $this;
}

Example 2

github.com

magento/magento2/blob/052e789/app/code/Magento/CatalogUrlRewrite/etc/events.xml#L27-L29


<event name="catalog_product_save_after">
    <observer name="process_url_rewrite_saving" instance="Magento\CatalogUrlRewrite\Observer\ProductProcessUrlRewriteSavingObserver"/>
</event>

github.com

magento/magento2/blob/052e789/app/code/Magento/CatalogUrlRewrite/Observer/ProductProcessUrlRewriteSavingObserver.php#L44-L61


public function execute(\Magento\Framework\Event\Observer $observer)
{
    /** @var \Magento\Catalog\Model\Product $product */
    $product = $observer->getEvent()->getProduct();


    $isChangedWebsites = $product->getIsChangedWebsites();
    if ($product->dataHasChangedFor('url_key') || $product->getIsChangedCategories() || $isChangedWebsites) {
        if ($isChangedWebsites) {
            $this->urlPersist->deleteByData([
                UrlRewrite::ENTITY_ID => $product->getId(),
                UrlRewrite::ENTITY_TYPE => ProductUrlRewriteGenerator::ENTITY_TYPE,
            ]);
        }
        if ($product->getVisibility() != Visibility::VISIBILITY_NOT_VISIBLE) {
            $this->urlPersist->replace($this->productUrlRewriteGenerator->generate($product));
        }
    }
}

Example 3

github.com

magento/magento2/blob/052e789/app/code/Magento/GoogleOptimizer/etc/events.xml#L9-L11


<event name="catalog_product_save_after">
    <observer name="googleoptimizer_observer" instance="Magento\GoogleOptimizer\Observer\Product\SaveGoogleExperimentScriptObserver" />
</event>

github.com

magento/magento2/blob/052e789/app/code/Magento/GoogleOptimizer/Observer/Product/SaveGoogleExperimentScriptObserver.php#L12-L12


class SaveGoogleExperimentScriptObserver extends \Magento\GoogleOptimizer\Observer\AbstractSave

github.com

magento/magento2/blob/052e789/app/code/Magento/GoogleOptimizer/Observer/AbstractSave.php#L50-L66


/**
 * Save script after saving entity
 *
 * @param Observer $observer
 * @return $this
 * @throws \InvalidArgumentException
 */
public function execute(Observer $observer)
{
    $this->_initEntity($observer);


    if ($this->_isGoogleExperimentActive() && $this->isDataAvailable()) {
        $this->_processCode();
    }


    return $this;
}

Example 4

github.com

magento/magento2/blob/052e789/app/code/Magento/Sales/etc/adminhtml/events.xml#L18-L20


<event name="catalog_product_save_after">
    <observer name="sales_quote" instance="Magento\Sales\Observer\Backend\CatalogProductSaveAfterObserver" />
</event>

github.com

magento/magento2/blob/052e789/app/code/Magento/Sales/Observer/Backend/CatalogProductSaveAfterObserver.php#L39-L49


/**
 * Catalog Product After Save (change status process)
 *
 * @param \Magento\Framework\Event\Observer $observer
 * @return void
 */
public function execute(\Magento\Framework\Event\Observer $observer)
{
    $product = $observer->getEvent()->getProduct();
    $this->_recollectQuotes($product->getId(), $product->getStatus());
}

dmitry_fedyuk · April 13, 2016, 2:31pm