From b480015d0b98c9d52baa9fb93eeb8238d942aa4e Mon Sep 17 00:00:00 2001
From: stae1102 <stae1102@gmail.com>
Date: Sun, 10 Mar 2024 21:05:18 +0900
Subject: [PATCH] feat: delete parentId whenever children become parent

---
 src/categories/category.service.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/categories/category.service.ts b/src/categories/category.service.ts
index 03db16d..d7698ec 100644
--- a/src/categories/category.service.ts
+++ b/src/categories/category.service.ts
@@ -244,11 +244,12 @@ export class CategoryService {
       // find children categories
       const childrenCategories = await queryRunnerManager.find(Category, {
         where: { parentId: categoryId },
+        order: { createdAt: 'DESC' },
       });
 
       await queryRunnerManager.save(
         childrenCategories.map((childrenCategory) => {
-          childrenCategory.parentId = parentCategory?.id;
+          childrenCategory.parentId = parentCategory?.id ?? null;
           return childrenCategory;
         }),
       );