How to get a bundle product's children?

dmitrii_fediuk · April 13, 2016, 4:08am

API

Use the \Magento\Bundle\Model\Product\Type::getChildrenIds() method:

magento/magento2/blob/052e789/app/code/Magento/Bundle/Model/Product/Type.php#L235-L248


/**
 * Retrieve Required children ids
 * Return grouped array, ex array(
 *   group => array(ids)
 * )
 *
 * @param int $parentId
 * @param bool $required
 * @return array
 */
public function getChildrenIds($parentId, $required = true)
{
    return $this->_bundleSelection->getChildrenIds($parentId, $required);
}

It is the bundle products implementation of the universal abstract \Magento\Catalog\Model\Product\Type\AbstractType::getChildrenIds() method:

github.com

magento/magento2/blob/052e789/app/code/Magento/Catalog/Model/Product/Type/AbstractType.php#L221-L237


/**
 * Retrieve Required children ids
 * Return grouped array, ex array(
 *   group => array(ids)
 * )
 *
 * @deplacated TODO: refactor to child relation manager
 *
 * @param int $parentId
 * @param bool $required
 * @return array
 * @SuppressWarnings(PHPMD.UnusedFormalParameter)
 */
public function getChildrenIds($parentId, $required = true)
{
    return [];
}

A usage example

github.com

magento/magento2/blob/052e789/app/code/Magento/CatalogInventory/Model/StockIndex.php#L160-L162


$typeInstance = $product->getTypeInstance();


$requiredChildrenIds = $typeInstance->getChildrenIds($productId, true);

dmitrii_fediuk · April 30, 2016, 7:20pm