Get the roots only for the given menu id

Http/Controllers/Admin/MenuController.php

@@ -65,7 +65,7 @@ class MenuController extends AdminBaseController
 
     public function edit(Menu $menu)
     {
-        $menuItems = $this->menuItem->roots();
+        $menuItems = $this->menuItem->rootsForMenu($menu->id);
 
         $menuStructure = $this->menuRenderer->renderForMenu($menu->id, $menuItems);
 

Repositories/Eloquent/EloquentMenuItemRepository.php

@@ -20,9 +20,9 @@ class EloquentMenuItemRepository extends EloquentBaseRepository implements MenuI
         return $menuItem;
     }
 
-    public function roots()
+    public function rootsForMenu($menuId)
     {
-        return $this->model->roots()->orderBy('position')->get();
+        return $this->model->roots()->where('menu_id', $menuId)->orderBy('position')->get();
     }
 
     /**

Repositories/MenuItemRepository.php

@@ -8,7 +8,7 @@ interface MenuItemRepository extends BaseRepository
      * Get all root elements
      * @return mixed
      */
-    public function roots();
+    public function rootsForMenu($menuId);
 
     /**
      * Get the menu items ready for routes