From 6eeeabda5c3ba1744484eaed4f9e62d2fe08c4aa Mon Sep 17 00:00:00 2001
From: bumi <hello@michaelbumann.com>
Date: Mon, 16 Apr 2018 22:42:28 +0200
Subject: [PATCH] Fox bignumber cps for empty values

---
 app/utils/cps/bignumber.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/app/utils/cps/bignumber.js b/app/utils/cps/bignumber.js
index f86cab2..4fd3f55 100644
--- a/app/utils/cps/bignumber.js
+++ b/app/utils/cps/bignumber.js
@@ -4,7 +4,10 @@ import ethers from 'npm:ethers';
 export default function(dependentKey, converterMethod) {
   return computed(dependentKey, {
     get () {
-      return this.get(dependentKey)[converterMethod]();
+      let value = this.get(dependentKey);
+      if (value) {
+        return this.get(dependentKey)[converterMethod]();
+      }
     },
     set (key, value) {
       value = ethers.utils.bigNumberify(value);