From 48dc612ff8a806f83b54af54e280e90aa2a52663 Mon Sep 17 00:00:00 2001
From: Jasder <2053003901@@qq.com>
Date: Wed, 18 Dec 2019 10:13:38 +0800
Subject: [PATCH] ADD gem 'ancestry' with a tree structure

---
 Gemfile | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Gemfile b/Gemfile
index 55030971d..623179534 100644
--- a/Gemfile
+++ b/Gemfile
@@ -49,6 +49,9 @@ gem 'rqrcode_png'
 
 gem 'acts-as-taggable-on', '~> 6.0'
 
+# a tree structure
+gem 'ancestry'
+
 group :development, :test do
   gem 'rspec-rails', '~> 3.8'
 end