Add key to datagantt

app/Http/Controllers/HierarchyFtthController.php

@@ -118,11 +118,14 @@ class HierarchyFtthController extends Controller
         $data = HierarchyFtth::where('project_id', $project_id)->where('parent_id', $parent_id)->orderByRaw('id ASC')->get();
      
         foreach($data as $objRow){
+            $objRow->key = rand(1, 1000);
             if (VersionGantt::where('hierarchy_ftth_id', $objRow->id)->exists()) {
                 $dataGantt = VersionGantt::where('hierarchy_ftth_id', $objRow->id)->get();
+                foreach ($dataGantt as $gantt) {
+                  $gantt->key = $objRow->key;
+                }
                 $objRow->dataGantt = $dataGantt;
             }
-            $objRow->key = rand(1, 1000);
             $objRow->children = $this->getChildren($project_id, $objRow->id);
             $finalData[] = $objRow;
         }