/**
  * @param bool $asArray Represent menu items as arrays if true
  * @return array Returns all menu as array
  */
 public function menu($asArray = false)
 {
     $navs = Navigation::whereNull('parent_id')->orderBy('sort_order', 'ASC')->get();
     $result = [];
     foreach ($navs as $nav) {
         if ($asArray) {
             $_nav = $nav->toArray();
             $_nav['name'] = $nav->name;
             $result[] = ['item' => $_nav, 'children' => $this->getChildren($nav, $asArray)];
         } else {
             $result[] = ['item' => $nav, 'children' => $this->getChildren($nav, $asArray)];
         }
     }
     return $result;
 }