From f244e62dcaad08acdee320e3ae3cbb42ce415f9b Mon Sep 17 00:00:00 2001
From: Jasper Zeinstra <jasper.zeinstra@mediact.nl>
Date: Tue, 20 Nov 2018 13:00:32 +0100
Subject: [PATCH] Add child identities to product indenties instead of parent
 identities

---
 app/code/Magento/Bundle/Model/Plugin/Product.php      | 11 ++++++++---
 .../Model/Plugin/ProductIdentitiesExtender.php        |  9 +++++----
 2 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/app/code/Magento/Bundle/Model/Plugin/Product.php b/app/code/Magento/Bundle/Model/Plugin/Product.php
index b0f8d1af32fc2..4a7303641cb0d 100644
--- a/app/code/Magento/Bundle/Model/Plugin/Product.php
+++ b/app/code/Magento/Bundle/Model/Plugin/Product.php
@@ -24,6 +24,8 @@ public function __construct(Type $type)
     }
 
     /**
+     * Add child identities to product identities
+     *
      * @param CatalogProduct $product
      * @param array $identities
      * @return string[]
@@ -32,9 +34,12 @@ public function afterGetIdentities(
         CatalogProduct $product,
         array $identities
     ) {
-        foreach ($this->type->getParentIdsByChild($product->getEntityId()) as $parentId) {
-            $identities[] = CatalogProduct::CACHE_TAG . '_' . $parentId;
+        foreach ($this->type->getChildrenIds($product->getEntityId()) as $optionId => $childIds) {
+            foreach ($childIds as $childId) {
+                $identities[] = CatalogProduct::CACHE_TAG . '_' . $childId;
+            }
         }
-        return $identities;
+
+        return array_unique($identities);
     }
 }
diff --git a/app/code/Magento/ConfigurableProduct/Model/Plugin/ProductIdentitiesExtender.php b/app/code/Magento/ConfigurableProduct/Model/Plugin/ProductIdentitiesExtender.php
index 68c574194817c..52f7bffdf536b 100644
--- a/app/code/Magento/ConfigurableProduct/Model/Plugin/ProductIdentitiesExtender.php
+++ b/app/code/Magento/ConfigurableProduct/Model/Plugin/ProductIdentitiesExtender.php
@@ -37,7 +37,7 @@ public function __construct(Configurable $configurableType, ProductRepositoryInt
     }
 
     /**
-     * Add parent identities to product identities
+     * Add child identities to product identities
      *
      * @param Product $subject
      * @param array $identities
@@ -48,9 +48,10 @@ public function afterGetIdentities(Product $subject, array $identities): array
     {
         $identities = (array) $identities;
 
-        foreach ($this->configurableType->getParentIdsByChild($subject->getId()) as $parentId) {
-            $parentProduct = $this->productRepository->getById($parentId);
-            $identities = array_merge($identities, (array) $parentProduct->getIdentities());
+        foreach ($this->configurableType->getChildrenIds($subject->getId()) as $key => $childIds) {
+            foreach ($childIds as $childId) {
+                $identities[] = Product::CACHE_TAG . '_' . $childId;
+            }
         }
 
         return array_unique($identities);