Magento – Magento 2- Force Display Full Breadcrumb Path

Now if you paste the URL you copied from the Coat, the Breadcrumbs will be "Home > Women's > Footwear> Heels > Men's Coat 1" which isn't correct

In my experience this is local to 1.11EE - This is due to the fact that Magento uses the cookie value from LAST_CATEGORY. I requested a patch from EE support for this and they provided one to me. I'd be surprised if this wasn't fixed in 1.12.

While I don't have the patchfile at the moment, an SVN diff yielded the following:

Index: app/code/core/Enterprise/PageCache/Model/Processor/Default.php
===================================================================
--- app/code/core/Enterprise/PageCache/Model/Processor/Default.php  (revision 717)
+++ app/code/core/Enterprise/PageCache/Model/Processor/Default.php  (revision 718)
@@ -103,6 +103,7 @@
          */
         if ($container && !Mage::getIsDeveloperMode()) {
             $container = new $container($this->_placeholder);
+            $container->setProcessor(Mage::getSingleton('enterprise_pagecache/processor'));
             $blockContent = $matches[1];
             $container->saveCache($blockContent);
         }
Index: app/code/core/Enterprise/PageCache/Model/Container/Breadcrumbs.php
===================================================================
--- app/code/core/Enterprise/PageCache/Model/Container/Breadcrumbs.php  (revision 717)
+++ app/code/core/Enterprise/PageCache/Model/Container/Breadcrumbs.php  (revision 718)
@@ -51,6 +51,10 @@
     protected function _renderBlock()
     {
         $productId = $this->_getProductId();
+
+        /** @var $product null|Mage_Catalog_Model_Product */
+        $product = null;
+
         if ($productId) {
             $product = Mage::getModel('catalog/product')
                 ->setStoreId(Mage::app()->getStore()->getId())
@@ -60,6 +64,12 @@
             }
         }
         $categoryId = $this->_getCategoryId();
+
+        if ($product !== null && !$product->canBeShowInCategory($categoryId)) {
+            $categoryId = null;
+            Mage::unregister('current_category');
+        }
+
         if ($categoryId && !Mage::registry('current_category')) {
             $category = Mage::getModel('catalog/category')->load($categoryId);
             if ($category) {
@@ -68,7 +78,7 @@
         }

         //No need breadcrumbs on CMS pages
-        if (!$categoryId) {
+        if (!$productId && !$categoryId) {
             return '';
         }

Index: app/code/core/Enterprise/PageCache/Model/Observer.php
===================================================================
--- app/code/core/Enterprise/PageCache/Model/Observer.php   (revision 717)
+++ app/code/core/Enterprise/PageCache/Model/Observer.php   (revision 718)
@@ -546,6 +546,10 @@
      */
     public function updateProductInfo(Varien_Event_Observer $observer)
     {
+        if (!$this->isCacheEnabled()) {
+            return $this;
+        }
+
         $paramsObject = $observer->getEvent()->getParams();
         if ($paramsObject instanceof Varien_Object) {
             if (array_key_exists(Enterprise_PageCache_Model_Cookie::COOKIE_CATEGORY_ID, $_COOKIE)) {
Index: app/code/core/Mage/Catalog/Helper/Product.php
===================================================================
--- app/code/core/Mage/Catalog/Helper/Product.php   (revision 717)
+++ app/code/core/Mage/Catalog/Helper/Product.php   (revision 718)
@@ -307,6 +307,8 @@
             if ($product->canBeShowInCategory($lastId)) {
                 $categoryId = $lastId;
             }
+        } elseif (!$product->canBeShowInCategory($categoryId)) {
+            $categoryId = null;
         }

         if ($categoryId) {
@@ -322,9 +324,7 @@
         try {
             Mage::dispatchEvent('catalog_controller_product_init', array('product' => $product));
             Mage::dispatchEvent('catalog_controller_product_init_after',
-                            array('product' => $product,
-                                'controller_action' => $controller
-                            )
+                array('product' => $product, 'controller_action' => $controller)
             );
         } catch (Mage_Core_Exception $e) {
             Mage::logException($e);

I know this is quite old, but I'd like to share my solution anyway as it doesn't override/clone any core files.

1. In your custom module add the following to your config.xml:

   <config>
       ...
       <frontend>
           <events>
               <catalog_controller_product_init>
                   <observers>
                       <breadcrumb_categorypath_product_init>
                           <type>singleton</type>
                           <class><Your Namespace>_<Your Module>_Model_Observer</class>
                           <method>fullBreadcrumbCategoryPath</method>
                       </breadcrumb_categorypath_product_init>
                   </observers>
               </catalog_controller_product_init>
           </events>
       </frontend>
   </config>
   

2. Create an Observer.php in /app/code/local/<Your Namespace>/<Your Module>/Model/

3. Add the following to your Observer.php:

   class <Your Namespace>_<Your Module>_Model_Observer {
       public function fullBreadcrumbCategoryPath(Varien_Event_Observer $observer) {
           $current_product = Mage::registry('current_product');
   
           if( $current_product ) {
               $categories = $current_product->getCategoryCollection()->addAttributeToSelect('name')->setPageSize(1);
               foreach( $categories as $category ) {
                   Mage::unregister('current_category');
                   Mage::register('current_category', $category);
               }
           }
       }
   }
   

4. You should be good to go.