How to Get List Products from Catalog Rule Condition in Magento 2

Getting list product from catalog rule condition in Magento 2 is the method helping you create and observe the all promotions. In Magento 2 store, there are two types of promotion rules you can set: Catalog Rule and Shopping Cart Rule, however, we all will refer to the catalog rule. Depending on your needs, you are allowed to generate multiple catalog promotion rule and apply a variety of conditions for each one.

Below is the detailed guides to how to get list products from catalog rule condition by creating a class in the \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;
}
}

The code snippet is the greatest choice so that you can get the list product from Catalog Rule Condition with ease. Hope this is the helpful topic to achieve the better results when you run Magento 2 platform on your ecommerce store.



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