From 3698154c2e8dd6bfc3b5209dcc9f9e01d5406c23 Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop@gmail.com>
Date: Thu, 8 Aug 2013 23:50:34 -0400
Subject: [PATCH] Book: add start_date and end_date

---
 lib/gnucash/book.rb | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/lib/gnucash/book.rb b/lib/gnucash/book.rb
index 6c6a6f2..ecc05c4 100644
--- a/lib/gnucash/book.rb
+++ b/lib/gnucash/book.rb
@@ -5,6 +5,8 @@ module Gnucash
   class Book
     attr_accessor :accounts
     attr_accessor :transactions
+    attr_accessor :start_date
+    attr_accessor :end_date
 
     def initialize(fname)
       @ng = Nokogiri.XML(Zlib::GzipReader.open(fname).read)
@@ -31,8 +33,13 @@ module Gnucash
     end
 
     def build_transactions
+      @start_date = nil
+      @end_date = nil
       @transactions = @book_node.xpath('gnc:transaction').map do |txn_node|
-        Transaction.new(self, txn_node)
+        Transaction.new(self, txn_node).tap do |txn|
+          @start_date = txn.date if @start_date.nil? or txn.date < @start_date
+          @end_date = txn.date if @end_date.nil? or txn.date > @end_date
+        end
       end
     end