From 0ebcf3d7f7224a28d4eb887e6efe516c5cbf38b0 Mon Sep 17 00:00:00 2001
From: wyx <414722560@qq.com>
Date: Sat, 25 Jul 2020 12:17:46 +0800
Subject: [PATCH] update model coin_change

---
 app/models/coin_change.rb | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/app/models/coin_change.rb b/app/models/coin_change.rb
index 9722a133..f5e066fb 100644
--- a/app/models/coin_change.rb
+++ b/app/models/coin_change.rb
@@ -1,2 +1,5 @@
 class CoinChange < ApplicationRecord
+  belongs_to :to_wallet, class_name: 'Wallet'
+  belongs_to :from_wallet, class_name: 'Wallet'
+  validates :amount, presence: true
 end