From cc17782df498b4701057719c68d8b42322ddcc20 Mon Sep 17 00:00:00 2001
From: liao <liao@syxysoft.com>
Date: Tue, 31 Oct 2023 16:20:24 +0800
Subject: [PATCH] =?UTF-8?q?update=20=E8=B5=84=E6=96=99=E4=B8=AD=E5=BF=83-?=
 =?UTF-8?q?=E5=88=A0=E9=99=A4=E6=96=87=E4=BB=B6=E5=A4=B9?=
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---
 .../service/impl/LawsDataCenterFolderServiceImpl.java  | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/laws-modules/src/main/java/com/jero/modules/laws/dataCenter/service/impl/LawsDataCenterFolderServiceImpl.java b/laws-modules/src/main/java/com/jero/modules/laws/dataCenter/service/impl/LawsDataCenterFolderServiceImpl.java
index 254758c0..ffe8ca6b 100644
--- a/laws-modules/src/main/java/com/jero/modules/laws/dataCenter/service/impl/LawsDataCenterFolderServiceImpl.java
+++ b/laws-modules/src/main/java/com/jero/modules/laws/dataCenter/service/impl/LawsDataCenterFolderServiceImpl.java
@@ -169,6 +169,16 @@ public class LawsDataCenterFolderServiceImpl extends ServiceImpl<LawsDataCenterF
 		if (CollectionUtils.isNotEmpty(lawsDataCenterFolders)) {
 			throw new JeroBootException(ResultCommon.EXIST_SUB_FOLDERS);
 		}
+
+		// 只剩一个文件夹也不能删除
+		LambdaQueryWrapper<LawsDataCenterFolder> queryWrapper1 = new LambdaQueryWrapper<>();
+		queryWrapper1.eq(LawsDataCenterFolder::getParentId, "0");
+		queryWrapper1.ne(LawsDataCenterFolder::getId, id);
+		List<LawsDataCenterFolder> existedRootFolders = list(queryWrapper1);
+		if (CollectionUtils.isEmpty(existedRootFolders)) {
+			throw new JeroBootException("删除失败，至少保留一个根节点");
+		}
+
 		removeById(id);
 		// 将该文件夹下面的文件夹关联删除
 		LambdaUpdateWrapper<LawsDataCenterFile> updateWrapper = new LambdaUpdateWrapper<>();