From ad2d58771b6531fed4af5114dc7410042e97c654 Mon Sep 17 00:00:00 2001
From: Bo Trethewey <botrethewey@gmail.com>
Date: Sat, 22 Apr 2017 20:33:12 -0700
Subject: [PATCH] custom method in_cart? added

---
 app/models/order.rb | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/app/models/order.rb b/app/models/order.rb
index 9dceb58afa..597650157e 100644
--- a/app/models/order.rb
+++ b/app/models/order.rb
@@ -11,7 +11,15 @@ class Order < ApplicationRecord
   validates :exp_month, :exp_year, presence: true, format: { with: /\A\d{2}\z/ }, unless: :in_cart?
   validates :cvv, presence: true, format: { with: /\A\d{3}\z/ }, unless: :in_cart?
 
-  def in_cart?
-    order_state == "pending"
+def in_cart?
+  order_state == "pending"
+end
+
+  def sub_total
+    orderitems.inject(0, :+)
+  end
+
+  def last_four_digits
+    card_number.split(//).last(4).join
   end
 end