Magento 2.3. - Show fullpath in breadcrumb on product detail page

Question

Is there any workaround to show the fullpath with category and subcategories in the breadcrumb on the product detail page?

It now only shows: Home > Product "myproduct"

Answer 1

Module Method Working For me in Magento 2.1 / 2.2 /2.3 :: Show Fullpath in BreadCrumb On Product Detail Page(Home > Category1 > Category2 > MyProduct).Also Works on MegaMenu

1. app/code/[VendorName]/[ModuleName]/registration.php

<?php
\Magento\Framework\Component\ComponentRegistrar::register(
    \Magento\Framework\Component\ComponentRegistrar::MODULE,
    '[VendorName_ModuleName]',
    __DIR__
);

2. app/code/[VendorName]/[ModuleName]/etc/module.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
    <module name="[VendorName_ModuleName]" setup_version="0.1.1">
        <sequence>
            <module name="Magento_Catalog"/>
            <module name="Magento_Theme"/>
        </sequence>
    </module>
</config>

3. app/code/[VendorName]/[ModuleName]/etc/frontend/di.xml

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <type name="Magento\Catalog\Controller\Product\View">
        <plugin name="[VendorName_ModuleName]_product_breadcrumbs" type="[VendorName]\[ModuleName]\Plugin\Product\View" sortOrder="1"/>
    </type>
</config>

4. app/code/[VendorName]/[ModuleName]/Plugin/Product/View.php

<?php

namespace [VendorName]\[ModuleName]\Plugin\Product;

use Magento\Catalog\Controller\Product\View as MagentoView;
use Magento\Catalog\Model\Product;
use Magento\Framework\View\Result\PageFactory;
use Magento\Store\Model\StoreManager;
use Magento\Framework\Registry;
use Magento\Framework\Exception\LocalizedException;
use Magento\Catalog\Model\ResourceModel\Category\Collection;
use Magento\Framework\View\Result\Page;

class View
{

    /**
     * @var Product
     */
    protected $product;
    /**
     * @var StoreManager
     */
    protected $storeManager;
    /**
     * @var Registry
     */
    protected $registry;
    /**
     * @var Collection
     */
    protected $collection;
    /**
     * @var PageFactory
     */
    private $resultPage;


    /**
     * View constructor.
     * @param StoreManager $storeManager
     * @param Registry $registry
     * @param Collection $collection
     * @param PageFactory $resultPage
     */
    public function __construct(
        StoreManager $storeManager,
        Registry $registry,
        Collection $collection,
        PageFactory $resultPage)
    {
        $this->storeManager = $storeManager;
        $this->registry = $registry;
        $this->collection = $collection;
        $this->resultPage = $resultPage;
    }

    public function afterExecute(MagentoView $subject, $result)
    {
        if(!$result instanceof Page){
            return $result;
        }

        $resultPage = $this->resultPage->create();
        $breadcrumbsBlock = $resultPage->getLayout()->getBlock('breadcrumbs');
        if(!$breadcrumbsBlock || !isset($breadcrumbsBlock)){
            return $result;

        }
        $breadcrumbsBlock->addCrumb(
            'home',
            [
                'label' => __('Home'),
                'title' => __('Go to Home Page'),
                'link' => $this->storeManager->getStore()->getBaseUrl()
            ]
        );

        try {
            $product = $this->getProduct();
        } catch (LocalizedException $e) {
            return $result;
        }
        
        $pageMainTitle = $resultPage->getLayout()->getBlock('page.main.title');
        if ($pageMainTitle) {
            $pageMainTitle->setPageTitle($product->getName());
        }

        if(null == $product->getCategory() || null == $product->getCategory()->getPath()){
            $breadcrumbsBlock->addCrumb(
                'cms_page',
                [
                    'label' => $product->getName(),
                    'title' => $product->getName(),
                ]
            );
            return $result;
        }

        $categories = $product->getCategory()->getPath();
        $categoriesids = explode('/', $categories);

        $categoriesCollection = null;
        try {
            $categoriesCollection = $this->collection
                ->addFieldToFilter('entity_id', array('in' => $categoriesids))
                ->addAttributeToSelect('name')
                ->addAttributeToSelect('url_key')
                ->addAttributeToSelect('include_in_menu')
                ->addAttributeToSelect('is_active')
                ->addAttributeToSelect('is_anchor');
        } catch (LocalizedException $e) {
            return $result;
        }

        foreach ($categoriesCollection->getItems() as $category) {
            if ($category->getIsActive() && $category->isInRootCategoryList()) {
                $categoryId = $category->getId();
                $path = [
                    'label' => $category->getName(),
                    'link' => $category->getUrl() ? $category->getUrl() : ''
                ];
                $breadcrumbsBlock->addCrumb('category' . $categoryId, $path);
            }
        }

        $breadcrumbsBlock->addCrumb(
            'cms_page',
            [
                'label' => $product->getName(),
                'title' => $product->getName(),
            ]
        );

        return $result;
    }

    /**
     * @return Product
     * @throws LocalizedException
     */
    private function getProduct()
    {
        if (is_null($this->product)) {
            $this->product = $this->registry->registry('product');

            if (!$this->product->getId()) {
                throw new LocalizedException(__('Failed to initialize product'));
            }
        }

        return $this->product;
    }
}

5.app/code/[VendorName]/[ModuleName]/view/frontend/layout/catalog_product_view.xml

<?xml version="1.0"?>
<page layout="1column" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <body>
        <referenceBlock name="breadcrumbs" template="Magento_Theme::html/breadcrumbs.phtml"/>
    </body>
</page>

Answer 2

By default, Magento shows the breadcrumbs on the basis of the path from where the user arrives at the product/category page.

Suppose, a product X has been assigned to:

• Category A
• Category A >> Subcategory B

If the user reaches at the product by navigating through Category A only, then the breadcrumbs will show like:

• Home >> Category A >> product X

If the user reaches at the product by navigating through Category A, then Subcategory B, then the breadcrumbs will show like:

• Home >> Category A >> Subcategory B >> product X

and if the user reaches at the product by searching, the breadcrumbs will look like:

• Home >> product X

I hope it is clear now.

Answer 3

-If you are using some extra module like megamenu. In this case just replace your block with this.

<?php

namespace VenorName\ModuleName\Block;

use Magento\Catalog\Helper\Data;
use Magento\Framework\View\Element\Template\Context;
use Magento\Store\Model\Store;
use Magento\Framework\Registry;
use Magento\Framework\App\Config\ScopeConfigInterface;
class Crumbs extends \Magento\Framework\View\Element\Template
{
    private $catalogData = null;

    private $scopeConfig;

    public function __construct(
        Context $context,
        Data $catalogData,
        Registry $registry,
        ScopeConfigInterface $scopeConfig,
        \Magento\Framework\App\Request\Http $request,
        array $data = []
    ) {
        $this->catalogData = $catalogData;
        $this->registry = $registry;
        $this->request = $request;
        $this->scopeConfig = $scopeConfig;
        parent::__construct($context, $data);
    }

    public function getCrumbs()
    {
        $evercrumbs = array();

        $evercrumbs[] = array(
            'label' => 'Home',
            'title' => 'Go to Home Page',
            'link' => $this->_storeManager->getStore()->getBaseUrl()
        );
    
        $product = $this->registry->registry('current_product');
    
        $categoryCollection = clone $product->getCategoryCollection();
        $categoryCollection->clear();
        $categoryCollection->addAttributeToSort('level', $categoryCollection::SORT_ORDER_DESC)->addAttributeToFilter('path', array('like' => "1/" . $this->_storeManager->getStore()->getRootCategoryId() . "/%"));
        $categoryCollection->setPageSize(1);
        $breadcrumbCategories = $categoryCollection->getFirstItem()->getParentCategories();
        foreach ($breadcrumbCategories as $category) {
            $evercrumbs[] = array(
                'label' => $category->getName(),
                'title' => $category->getName(),
                'link' => $category->getUrl()
            );
        }
    
        $evercrumbs[] = array(
                'label' => $product->getName(),
                'title' => $product->getName(),
                'link' => ''
            );
    
        return $evercrumbs;
}
}