How does \Magento\Catalog\Model\Product\Gallery\ReadHandler::execute() work?

dmitry_fedyuk (Dmitrii Fediuk) April 29, 2016, 8:48pm 1

Context: How does \Magento\Framework\EntityManager\Operation\Read\ReadExtensions::execute() work?

github.com

magento/magento2/blob/958164/app/code/Magento/Catalog/Model/Product/Gallery/ReadHandler.php#L42-L49


/**
 * @param string $entityType
 * @param object $entity
 * @param array $arguments
 * @return object
 * @SuppressWarnings(PHPMD.UnusedFormalParameter)
 */
public function execute($entityType, $entity, $arguments = [])

github.com

magento/magento2/blob/958164/app/code/Magento/Catalog/Model/Product/Gallery/ReadHandler.php#L51-L59


$value = [];
$value['images'] = [];


$localAttributes = ['label', 'position', 'disabled'];


$mediaEntries = $this->resourceModel->loadProductGalleryByAttributeId(
    $entity,
    $this->getAttribute()->getAttributeId()
);

Details: How does \Magento\Catalog\Model\ResourceModel\Product\Gallery::loadProductGalleryByAttributeId() work?

github.com

magento/magento2/blob/958164/app/code/Magento/Catalog/Model/Product/Gallery/ReadHandler.php#L61-L69


foreach ($mediaEntries as $mediaEntry) {
    foreach ($localAttributes as $localAttribute) {
        if ($mediaEntry[$localAttribute] === null) {
            $mediaEntry[$localAttribute] = $this->findDefaultValue($localAttribute, $mediaEntry);
        }
    }


    $value['images'][$mediaEntry['value_id']] = $mediaEntry;
}

github.com

magento/magento2/blob/958164/app/code/Magento/Catalog/Model/Product/Gallery/ReadHandler.php#L93-L105


/**
 * @param string $key
 * @param string[] &$image
 * @return string
 */
protected function findDefaultValue($key, &$image)
{
    if (isset($image[$key . '_default'])) {
        return $image[$key . '_default'];
    }


    return '';
}

github.com

magento/magento2/blob/958164/app/code/Magento/Catalog/Model/Product/Gallery/ReadHandler.php#L71-L74


$entity->setData(
    $this->getAttribute()->getAttributeCode(),
    $value
);

github.com

magento/magento2/blob/958164/app/code/Magento/ProductVideo/Model/Plugin/Catalog/Product/Gallery/ReadHandler.php#L16-L24


/**
 * @param \Magento\Catalog\Model\Product\Gallery\ReadHandler $mediaGalleryReadHandler
 * @param \Magento\Catalog\Model\Product $product
 * @return \Magento\Catalog\Model\Product
 */
public function afterExecute(
    \Magento\Catalog\Model\Product\Gallery\ReadHandler $mediaGalleryReadHandler,
    \Magento\Catalog\Model\Product $product
) {

Details: How does \Magento\ProductVideo\Model\Plugin\Catalog\Product\Gallery\ReadHandler::afterExecute() work?

How does \Magento\Catalog\Model\ResourceModel\Product\Gallery::loadProductGalleryByAttributeId() work?

dmitry_fedyuk (Dmitrii Fediuk) April 29, 2016, 8:48pm 2

See also: