[Improvement]: Add properties for tree sorting to data object indexes

config/pimcore/config.yaml

@@ -211,6 +211,10 @@ pimcore_generic_data_index:
           type: keyword
         index:
           type: integer
+        childrenSortBy:
+          type: keyword
+        childrenSortOrder:
+          type: keyword
       asset:
         mimetype:
           type: keyword

src/Enum/SearchIndex/FieldCategory/SystemField.php

@@ -51,6 +51,8 @@ enum SystemField: string
     case HAS_WORKFLOW_WITH_PERMISSIONS = 'hasWorkflowWithPermissions';
     case FILE_SIZE = 'fileSize';
     case DEPENDENCIES = 'dependencies';
+    case CHILDREN_SORT_BY = 'childrenSortBy';
+    case CHILDREN_SORT_ORDER = 'childrenSortOrder';
 
     /**
      * Not persisted in search index but dynamically calculated

src/Model/Search/DataObject/SearchResult/DataObjectSearchResultItem.php

@@ -33,6 +33,10 @@ class DataObjectSearchResultItem implements ElementSearchResultItemInterface
 
     private int $index;
 
+    private string $childrenSortBy;
+
+    private string $childrenSortOrder;
+
     private bool $published;
 
     private string $path;
@@ -130,6 +134,30 @@ public function setIndex(int $index): DataObjectSearchResultItem
         return $this;
     }
 
+    public function getChildrenSortBy(): string
+    {
+        return $this->childrenSortBy;
+    }
+
+    public function setChildrenSortBy(string $childrenSortBy): DataObjectSearchResultItem
+    {
+        $this->childrenSortBy = $childrenSortBy;
+
+        return $this;
+    }
+
+    public function getChildrenSortOrder(): string
+    {
+        return $this->childrenSortOrder;
+    }
+
+    public function setChildrenSortOrder(string $childrenSortOrder): DataObjectSearchResultItem
+    {
+        $this->childrenSortOrder = $childrenSortOrder;
+
+        return $this;
+    }
+
     public function isPublished(): bool
     {
         return $this->published;

src/Service/Serializer/Denormalizer/Search/DataObjectSearchResultDenormalizer.php

@@ -60,6 +60,8 @@ public function denormalize(
             ->setPublished($published)
             ->setKey(SystemField::KEY->getData($data))
             ->setIndex(SystemField::INDEX->getData($data))
+            ->setChildrenSortBy(SystemField::CHILDREN_SORT_BY->getData($data))
+            ->setChildrenSortOrder(SystemField::CHILDREN_SORT_ORDER->getData($data))
             ->setPath(SystemField::PATH->getData($data))
             ->setFullPath(SystemField::FULL_PATH->getData($data))
             ->setUserOwner(SystemField::USER_OWNER->getData($data) ?? 0)

src/Service/Serializer/Normalizer/DataObjectNormalizer.php

@@ -108,6 +108,8 @@ private function normalizeSystemFields(AbstractObject $dataObject, bool $skipLaz
             SystemField::TYPE->value => $dataObject->getType(),
             SystemField::KEY->value => $dataObject->getKey(),
             SystemField::INDEX->value => $dataObject->getIndex(),
+            SystemField::CHILDREN_SORT_BY->value => $dataObject->getChildrenSortBy(),
+            SystemField::CHILDREN_SORT_ORDER->value => $dataObject->getChildrenSortOrder(),
             SystemField::PATH->value => $dataObject->getPath(),
             SystemField::FULL_PATH->value => $dataObject->getRealFullPath(),
             SystemField::USER_OWNER->value => $dataObject->getUserOwner(),