rrefactor: 修改菜父级不能为自身或子孙级

app/admin/validate/v1/SysMenuValidate.php

@@ -3,6 +3,8 @@ declare (strict_types = 1);
 
 namespace app\admin\validate\v1;
 
+use app\admin\model\v1\SysMenuModel;
+use think\facade\Db;
 use think\Validate;
 
 class SysMenuValidate extends Validate
@@ -15,7 +17,7 @@ class SysMenuValidate extends Validate
      */
     protected $rule = [
         'id'                                     => 'require|integer',
-        'pid'                                    => 'integer',
+        'pid'                                    => 'integer|different:id|checkPidNotBeChildren',
         'title'                                  => 'require|max:64',
         'name'                                   => 'require|unique:sys_menu|max:64',
         'path'                                   => 'require|max:128',
@@ -43,6 +45,8 @@ class SysMenuValidate extends Validate
         'id.require'                                 => '菜单ID不能为空',
         'id.integer'                                 => '菜单ID必须为整数',
         'pid.integer'                                => '父级菜单ID必须为整数',
+        'pid.different'                              => '父级菜单ID不能为自身',
+        'pid.checkPidNotBeChildren'                  => '父级菜单不能为自身的子菜单',
         'title.require'                              => '菜单名称不能为空',
         'title.max'                                  => '菜单名称最多64个字符',
         'name.require'                               => '菜单Name不能为空',
@@ -64,9 +68,35 @@ class SysMenuValidate extends Validate
         'menu_ability_permission.*.sort.integer'     => '菜单能力权限排序必须为整数',
     ];
 
+    // 验证pid
+    protected function checkPidNotBeChildren($value, $rule, $data = [])
+    {
+        if ($value == 0) {
+            return true;
+        }
+        $table_name = (new SysMenuModel)->getTable();
+        $children = Db::query(
+            preg_replace(
+                '/\s+/u', 
+                ' ',
+                "WITH RECURSIVE menu_tree_by AS (
+                    SELECT a.id, a.pid FROM $table_name a WHERE a.id = {$data['id']}
+                    UNION ALL
+                    SELECT k.id, k.pid FROM $table_name k INNER JOIN menu_tree_by t ON t.id = k.pid
+                )
+                SELECT id FROM menu_tree_by WHERE id <> {$data['id']};"
+            )
+        );
+        if (!empty($children) && in_array($data['pid'], array_column($children, 'id'))) {
+            return false;
+        }
+
+        return true;
+    }
+
     // 新增验证场景
     public function sceneCreate()
     {
-        return $this->remove('id', 'require|integer');
+        return $this->remove('id', 'require|integer')->remove('pid', 'different|checkPidNotBeChildren');
     }
 }