Draft: Quickfix to make Quick Node Clone compatible with layout_paragraphs.

Closes #3218222

src/Entity/QuickNodeCloneEntityFormBuilder.php

@@ -3,6 +3,7 @@
 namespace Drupal\quick_node_clone\Entity;
 
 use Drupal\Core\Config\ConfigFactoryInterface;
+use Drupal\Core\Entity\ContentEntityInterface;
 use Drupal\Core\Entity\EntityFormBuilder;
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Entity\EntityTypeBundleInfoInterface;
@@ -201,27 +202,40 @@ class QuickNodeCloneEntityFormBuilder extends EntityFormBuilder {
   }
 
   /**
-   * Clone the paragraphs of a node.
+   * Clone the paragraphs of an entity.
    *
-   * If we do not clone the paragraphs attached to the node, the linked
-   * paragraphs would be linked to two nodes which is not ideal.
+   * If we do not clone the paragraphs attached to the entity, the linked
+   * paragraphs would be linked to two entities which is not ideal.
    *
-   * @param \Drupal\node\Entity\Node $node
-   *   The node to clone.
+   * @param \Drupal\Core\Entity\ContentEntityInterface $entity
+   *   The entity to clone paragraphs for.
    *
-   * @return \Drupal\node\Entity\Node
-   *   The node with cloned paragraph fields.
+   * @return \Drupal\Core\Entity\ContentEntityInterface $entity
+   *   The entity with cloned paragraph fields.
    */
-  public function cloneParagraphs(Node $node) {
-    foreach ($node->getFieldDefinitions() as $field_definition) {
+  public function cloneParagraphs(ContentEntityInterface $entity) {
+    foreach ($entity->getFieldDefinitions() as $field_definition) {
       $field_storage_definition = $field_definition->getFieldStorageDefinition();
       $field_settings = $field_storage_definition->getSettings();
       $field_name = $field_storage_definition->getName();
       if (isset($field_settings['target_type']) && $field_settings['target_type'] == "paragraph") {
-        if (!$node->get($field_name)->isEmpty()) {
-          foreach ($node->get($field_name) as $value) {
+        if (!$entity->get($field_name)->isEmpty()) {
+          // TODO: Layout Paragraphs integration:
+          // TODO: See https://www.drupal.org/project/layout_paragraphs/issues/3218226#comment-14129846
+          // TODO: See https://www.drupal.org/project/quick_node_clone/issues/3218222
+          // TODO: All the Steps 1-6 don't belong here in a perfect world but belong to layout_paragraphs
+          // 1. Create helper array to store old / new uuids from all paragraphs
+          // to update parent_uuids from all children later here:
+          $uuidOldNewMap = [];
+          foreach ($entity->get($field_name) as $value) {
             if ($value->entity) {
+              // 2. Store the old uuid of this paragraph:
+              $oldUuid = $value->entity->uuid();
               $value->entity = $value->entity->createDuplicate();
+              // 3. Store the new uuid of this paragraph:
+              $newUuid = $value->entity->uuid();
+              // 4. Save old => new uuid relations in array to replace the old one later:
+              $uuidOldNewMap[$oldUuid] = $newUuid;
               foreach ($value->entity->getFieldDefinitions() as $field_definition) {
                 $field_storage_definition = $field_definition->getFieldStorageDefinition();
                 $paragraph_field_settings = $field_storage_definition->getSettings();
@@ -233,6 +247,23 @@ class QuickNodeCloneEntityFormBuilder extends EntityFormBuilder {
                 }
 
                 $this->moduleHandler->alter('cloned_node_paragraph_field', $value->entity, $paragraph_field_name, $paragraph_field_settings);
+
+                if (isset($paragraph_field_settings['target_type']) && $paragraph_field_settings['target_type'] == "paragraph" && !empty($value->entity->{$paragraph_field_name})) {
+                  // Do the same for any nested paragraphs.
+                  self::cloneParagraphs($value->entity);
+                }
+              }
+            
+              // 5. Update children paragraphs parent_uuid's to the new uuids from
+              // the cloned paragraphs:
+              $behavior_settings = $value->entity->getAllBehaviorSettings();
+              if(isset($behavior_settings['layout_paragraphs']) && !empty($behavior_settings['layout_paragraphs']['parent_uuid'])){
+                $oldParentUuid = $behavior_settings['layout_paragraphs']['parent_uuid'];
+                if(!empty($uuidOldNewMap[$oldParentUuid])){
+                  $newParentUuid = $uuidOldNewMap[$oldParentUuid];
+                  $behavior_settings['layout_paragraphs']['parent_uuid'] = $newParentUuid;
+                  $value->entity->setBehaviorSettings('layout_paragraphs', $behavior_settings['layout_paragraphs']);
+                }
               }
             }
           }
@@ -240,7 +271,7 @@ class QuickNodeCloneEntityFormBuilder extends EntityFormBuilder {
       }
     }
 
-    return $node;
+    return $entity;
   }
 
   /**