From ddcfcf9a0ae072351aabc735d5f87194400e50a9 Mon Sep 17 00:00:00 2001
From: Hiroshi Kono <hiroshi.kono@gmail.com>
Date: Sat, 22 May 2010 20:50:05 +0900
Subject: [PATCH] p.140 extract method "discount_factor".

---
 chapter6/Replace_Temp_with_Query.rb | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/chapter6/Replace_Temp_with_Query.rb b/chapter6/Replace_Temp_with_Query.rb
index 65ada58..27323a4 100644
--- a/chapter6/Replace_Temp_with_Query.rb
+++ b/chapter6/Replace_Temp_with_Query.rb
@@ -7,15 +7,15 @@ def initialize(quantity, price)
     
 
   def price
-    if base_price >1000
-      discount_factor = 0.95
-    else
-      discount_factor = 0.98
-    end
-    base_price * discount_factor
+    a_discount_factor = discount_factor
+    base_price * a_discount_factor
   end
   
   def base_price
     @quantity * @item_price
   end
+  
+  def discount_factor
+    base_price > 1000 ? 0.95 : 0.98
+  end
 end