update

@@ -151,7 +151,7 @@ class NavLogic extends  BaseLogic
         if($pid){
         if($pid){
             $p_cate = $category->where('id', $pid)->select($fields)->first();
             $p_cate = $category->where('id', $pid)->select($fields)->first();
             if($p_cate){
             if($p_cate){
-                $nav_pid = $this->model->where('import_id', $nav['id'])->where('url', $p_cate['alias'])->value('id');
+                $nav_pid = $this->model->where('import_id', $nav['id'])->where('url', $p_cate['alias'])->value('id') ?: $nav_pid;
             }
             }
         }
         }
         $list = $category->list(['pid' => $pid], 'id', $fields, 'asc');
         $list = $category->list(['pid' => $pid], 'id', $fields, 'asc');
@@ -165,9 +165,6 @@ class NavLogic extends  BaseLogic
             if($exists_info){
             if($exists_info){
                 continue;
                 continue;
             }
             }
-            if(empty($nav_pid)){
-                continue;
-            }
             $data[] = [
             $data[] = [
                 'pid' => $nav_pid,
                 'pid' => $nav_pid,
                 'name' => $item['name'],
                 'name' => $item['name'],