在 Magento2 中，根据目录规则条件来获取列表产品可以帮你创建和监控所有的促销。有两种促销规则：目录规则和购物车规则，这里只涉及目录规则。根据你的需要，可以生成多个目录促销规则并且每一个都可以应用各种条件。
以下是如何从目录规则条件中获取类别产品的具体教程，通过创建一个类 \Magento\Rule\Model\AbstractModel
<?php
namespace Mageplaza\HelloWorld\Model;
class Rule extends \Magento\Rule\Model\AbstractModel
{
protected $_productIds;
/**
* Get array of product ids which are matched by rule
*
* @return array
*/
public function getListProductIdsInRule()
{
$productCollection = \Magento\Framework\App\ObjectManager::getInstance()->create(
'\Magento\Catalog\Model\ResourceModel\Product\Collection'
);
$productFactory = \Magento\Framework\App\ObjectManager::getInstance()->create(
'\Magento\Catalog\Model\ProductFactory'
);
$this->_productIds = [];
$this->setCollectedAttributes([]);
$this->getConditions()->collectValidatedAttributes($productCollection);
\Magento\Framework\App\ObjectManager::getInstance()->create(
'\Magento\Framework\Model\ResourceModel\Iterator'
)->walk(
$this->_productCollection->getSelect(),
[[$this, 'callbackValidateProduct']],
[
'attributes' => $this->getCollectedAttributes(),
'product' => $productFactory->create()
]
);
return $this->_productIds;
}
/**
* Callback function for product matching
*
* @param array $args
* @return void
*/
public function callbackValidateProduct($args)
{
$product = clone $args['product'];
$product->setData($args['row']);
$websites = $this->_getWebsitesMap();
foreach ($websites as $websiteId => $defaultStoreId) {
$product->setStoreId($defaultStoreId);
if ($this->getConditions()->validate($product)) {
$this->_productIds[] = $product->getId();
}
}
}
/**
* Prepare website map
*
* @return array
*/
protected function _getWebsitesMap()
{
$map = [];
$websites = \Magento\Framework\App\ObjectManager::getInstance()->create(
'\Magento\Store\Model\StoreManagerInterface'
)->getWebsites();
foreach ($websites as $website) {
// Continue if website has no store to be able to create catalog rule for website without store
if ($website->getDefaultStore() === null) {
continue;
}
$map[$website->getId()] = $website->getDefaultStore()->getId();
}
return $map;
}
}