更新数据关联查询，以及基本的数据的编辑，部分有待进一步完善。

app/admin/controller/PdmPartlist.php

@@ -58,6 +58,13 @@ class PdmPartlist extends AdminController
 
             // 生成查询数据
             $pid = !str_contains($pid, ',') ? $pid : explode(',',$pid);
+            
+            $page = (int)input('page', 1);
+            $limit = (int)input('limit', 10);
+            $where = $this->buildSelectParams();
+            $fieldList = $this->model->getFields();
+            $order = !array_key_exists('sort', $fieldList) ? 'id' : 'sort';
+
             $where[] = ['pid','in',$pid];
             if (!empty($post['keyword'])) {
                 $where[] = ['partnumber|reference|content|item','like','%'.$post['keyword'].'%'];
@@ -68,9 +75,12 @@ class PdmPartlist extends AdminController
                 // $where[] = ['pid','in',$pid];
                 // $where[] = ['partnumber','like','%'.$post['partnumber'].'%'];
             }
-
+            // throw new \Exception(json_encode($where));
             $count = $this->model->where($where)->count();
-            $list = $this->model->where($where)->limit((int)$limit)->page((int)$page)->select()
+            $subQuery = $this->model->field('id')->where($where)->order($order, 'desc')->limit($limit)->page($page)->buildSql();
+            $subQuery = '( SELECT object.id FROM ' . $subQuery . ' AS object )';
+            $list = $this->model->with($this->relationModel)->where('id in' . $subQuery)->order($order, 'asc')->select() //  如果是'desc'  list_to_tree  函数返回为空！
+            // $list = $this->model->where($where)->limit((int)$limit)->page((int)$page)->select()
                 ->each(function($item,$key) use ($pid){
                 if ($key == 0 && $pid == '0') {
                     $item['LAY_CHECKED'] = true;