这个问题的答案是错误的。尽管它们的实现可能有效,但这不是处理此问题的正确方法。正确的方法是使用Magentos的服务合同和数据模型。
在这种情况下,这就是Magento\ConfigurableProduct\Api\LinkManagementInterface
您需要的服务合同。
我在控制台命令中使用的一个小代码示例:
<?php
namespace Vendor\Module\Console;
use Magento\Catalog\Api\ProductRepositoryInterface;
use Magento\ConfigurableProduct\Api\LinkManagementInterface;
use Magento\Framework\Api\SearchCriteriaBuilder;
use Magento\Framework\App\State;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
/**
* Class UpdateChildProducts
* @package Vendor\Module\Console
*/
class UpdateChildProducts extends Command
{
/**
* @var ProductRepositoryInterface
*/
protected $productRepository;
/**
* @var SearchCriteriaBuilder
*/
protected $searchCriteriaBuilder;
/**
* @var LinkManagementInterface
*/
protected $linkManagement;
/**
* @var State
*/
protected $state;
/**
* UpdateChildProducts constructor.
* @param State $state
* @param LinkManagementInterface $linkManagement
* @param ProductRepositoryInterface $productRepository
* @param SearchCriteriaBuilder $searchCriteriaBuilder
* @param string $name
*/
public function __construct(
State $state,
LinkManagementInterface $linkManagement,
ProductRepositoryInterface $productRepository,
SearchCriteriaBuilder $searchCriteriaBuilder,
$name = 'update_child_products'
) {
$this->state = $state;
$this->linkManagement = $linkManagement;
$this->productRepository = $productRepository;
$this->searchCriteriaBuilder = $searchCriteriaBuilder;
parent::__construct($name);
}
/**
* Configure this command
*/
protected function configure()
{
$this->setName('example:update_child_products');
$this->setDescription('Iterate over all configurable products and show their children count.');
}
/**
* @param InputInterface $input
* @param OutputInterface $output
*/
protected function execute(InputInterface $input, OutputInterface $output)
{
// Set area code
try {
$this->state->setAreaCode('adminhtml');
} catch (\Exception $e) {
// Fail silently ...
}
$searchCriteria = $this->searchCriteriaBuilder
->addFilter('type_id', 'configurable')
->create();
$configurableProducts = $this->productRepository->getList($searchCriteria);
$output->writeln(sprintf('Found %d configurable products ...', $configurableProducts->getTotalCount()));
foreach ($configurableProducts->getItems() as $configurableProduct) {
$childProducts = $this->linkManagement->getChildren($configurableProduct->getSku());
$output->writeln(
sprintf('Found %d children for %s', count($childProducts), $configurableProduct->getSku())
);
}
}
}
Magento 2与自己的代码不太一致,因为大多数代码是从Magento 1移植的。这就是为什么您仍然看到基于继承的模型及其方法(如getTypeInstance()
)的剩余部分的原因。如果要构建面向未来的Magento 2代码,请尽可能使用服务合同和数据模型。