delete url rewrites for products after an attribute set is deleted

app/code/Magento/CatalogUrlRewrite/Plugin/Eav/Model/AttributeSetRepository.php

@@ -0,0 +1,68 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: patrikpihlstrom
+ * Date: 11/10/17
+ * Time: 22:12
+ */
+
+namespace Magento\CatalogUrlRewrite\Plugin\Eav\Model;
+
+
+use Magento\Catalog\Model\ResourceModel\Product\Collection;
+use Magento\Eav\Api\Data\AttributeSetInterface;
+use Magento\UrlRewrite\Model\UrlPersistInterface;
+
+class AttributeSetRepository
+{
+    /**
+     * @var \Magento\UrlRewrite\Model\UrlPersistInterface $urlPersist
+     */
+    private $urlPersist;
+
+    /**
+     * @var \Magento\Catalog\Model\ResourceModel\Product\Collection $productCollection
+     */
+    private $productCollection;
+
+    /**
+     * AttributeSetRepository constructor.
+     * @param \Magento\UrlRewrite\Model\UrlPersistInterface $urlPersist
+     * @param \Magento\Catalog\Model\ResourceModel\Product\Collection $productCollection
+     */
+    public function __construct(UrlPersistInterface $urlPersist, Collection $productCollection)
+    {
+        $this->urlPersist = $urlPersist;
+        $this->productCollection = $productCollection;
+    }
+
+    /**
+     * Remove product url rewrites when an attribute set is deleted.
+     *
+     * @param \Magento\Eav\Model\AttributeSetRepository $subject
+     * @param callable $proceed
+     * @param AttributeSetInterface $attributeSet
+     */
+    public function aroundDelete(\Magento\Eav\Model\AttributeSetRepository $subject, callable $proceed,
+                                 AttributeSetInterface $attributeSet)
+    {
+        // Get the product ids
+        $ids = $this->productCollection->addFieldToFilter('attribute_set_id', $attributeSet->getAttributeSetId())
+                                       ->getAllIds();
+
+        // Delete the attribute set
+        $result = $proceed($attributeSet);
+
+        // Delete the old product url rewrites
+        try
+        {
+            $this->urlPersist->deleteByData(['entity_id' => $ids, 'entity_type' => 'product']);
+        }
+        catch (\Exception $exception)
+        {
+            throw new CouldNotDeleteException(__('Could not delete the url rewrite(s): %1', $exception->getMessage()));
+        }
+
+        return $result;
+    }
+}

app/code/Magento/CatalogUrlRewrite/etc/di.xml

@@ -31,4 +31,7 @@
             </argument>
         </arguments>
     </type>
+    <type name="Magento\Eav\Model\AttributeSetRepository">
+        <plugin name="attribute_set_plugin" type="\Magento\CatalogUrlRewrite\Plugin\Eav\Model\AttributeSetRepository" />
+    </type>
 </config>