From 75b72701778904c5f71e9f775552ba3b8386120d Mon Sep 17 00:00:00 2001
From: Kensuke Kaneko <kyanny@gmail.com>
Date: Thu, 21 Jan 2010 00:38:05 +0900
Subject: [PATCH] =?UTF-8?q?CartItem=20=E3=82=AF=E3=83=A9=E3=82=B9=E8=BF=BD?=
 =?UTF-8?q?=E5=8A=A0?=
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---
 depot/app/models/cart_item.rb | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 depot/app/models/cart_item.rb

diff --git a/depot/app/models/cart_item.rb b/depot/app/models/cart_item.rb
new file mode 100644
index 0000000..8fe0f04
--- /dev/null
+++ b/depot/app/models/cart_item.rb
@@ -0,0 +1,20 @@
+class CartItem
+    attr_reader :product, :quantity
+
+    def initialize (product)
+        @product = product
+        @quantity = 1
+    end
+
+    def increment_quantity
+        @quantity += 1
+    end
+
+    def title
+        @product.title
+    end
+
+    def price
+        @product.price * @quantity
+    end
+end