Overriding Magento\Catalog\Model\Layer class not working in Magento 2.

I'm trying to create a custom module for showing custom product collection with layered navigation.

here i added di.xml file to overwrite model using preference.

But its not working, i tried to create log also, no log generated.


<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
   <preference for="Magento\Catalog\Model\Layer" type="Mage\Search\Model\Layer" />


namespace Mage\Search\Model;

class Layer extends \Magento\Catalog\Model\Layer

   public function getProductCollection()
        /*added log here*/
        var_dump('test'); // nothing showed.
        die(); // this also not helped
        if (isset($this->_productCollections[$this->getCurrentCategory()->getId()])) {
            $collection = $this->_productCollections[$this->getCurrentCategory()->getId()];
        } else {
            $collection = $this->collectionProvider->getCollection($this->getCurrentCategory());
            $this->_productCollections[$this->getCurrentCategory()->getId()] = $collection;

        return $collection;


Please suggest any solution for this.

Thank you!

  • hello. have you added di under frontend folder? May 25, 2017 at 6:06
  • no, added under etc \app\code\Mage\Search\etc\di.xml
    – dhanabal
    May 25, 2017 at 6:07
  • add into \app\code\Mage\Search\etc\frontend\di.xml file May 25, 2017 at 10:11
  • @SunilPatel let check and let you know
    – dhanabal
    May 25, 2017 at 10:19
  • make sure you flush cache, generation and di May 25, 2017 at 10:22

2 Answers 2


You should extend \Magento\Catalog\Model\Layer\Category or \Magento\Catalog\Model\Layer\Search class, like this:

In your etc/di.xml add:

<preference for="Magento\Catalog\Model\Layer\Category" type="[Vendor]\[Your_Extension]\Model\Override\Layer\Category" />
<type name="[Vendor]\[Your_Extension]\Model\Override\Layer\Category">
        <argument name="context" xsi:type="object">Magento\Catalog\Model\Layer\Category\Context</argument>

Create your model with your new or overrided functions in [Vendor][Your_Extension]\Model\Override\Layer\Category:


namespace [Vendor]\[Your_Extension]\Model\Override\Layer;

use Magento\Catalog\Api\CategoryRepositoryInterface;
use Magento\Catalog\Model\ResourceModel;

class Category extends \Magento\Catalog\Model\Layer
     * @param $context
     * @param StateFactory $layerStateFactory
     * @param \Magento\Catalog\Model\ResourceModel\Product\Attribute\CollectionFactory $attributeCollectionFactory
     * @param \Magento\Catalog\Model\ResourceModel\Product $catalogProduct
     * @param \Magento\Store\Model\StoreManagerInterface $storeManager
     * @param \Magento\Framework\Registry $registry
     * @param CategoryRepositoryInterface $categoryRepository
     * @param array $data
    public function __construct(
        \Magento\Catalog\Model\Layer\ContextInterface $context,
        \Magento\Catalog\Model\Layer\StateFactory $layerStateFactory,
        \Magento\Catalog\Model\ResourceModel\Product\Attribute\CollectionFactory $attributeCollectionFactory,
        \Magento\Catalog\Model\ResourceModel\Product $catalogProduct,
        \Magento\Store\Model\StoreManagerInterface $storeManager,
        \Magento\Framework\Registry $registry,
        CategoryRepositoryInterface $categoryRepository,
        array $data = []
    ) {

    public function newFunction($param1){
        //Your code here
        return $this;
  • It's not working :( I want to override getProductCollection() from Layer.php Mar 2, 2022 at 17:53

use this

use Magento\Catalog\Api\CategoryRepositoryInterface;
use Magento\Framework\Exception\NoSuchEntityException;
use Magento\Catalog\Model\ResourceModel\Product\Attribute\CollectionFactory as AttributeCollectionFactory;
use Magento\Catalog\Model\Layer\ContextInterface;

class Layer  extends \Magento\Catalog\Model\Layer

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