From 6ff70ac275f9b4c126fe741d3e6dc3332aa4fe22 Mon Sep 17 00:00:00 2001
From: Jeffrey Wilcke <stygeo@gmail.com>
Date: Tue, 25 Jun 2013 14:30:35 +0200
Subject: [PATCH] Implemented user transactions

---
 lib/bitstamp.rb        | 7 +++++++
 lib/bitstamp/helper.rb | 3 +++
 lib/bitstamp/model.rb  | 2 ++
 3 files changed, 12 insertions(+)

diff --git a/lib/bitstamp.rb b/lib/bitstamp.rb
index bd341c6..37e15e3 100644
--- a/lib/bitstamp.rb
+++ b/lib/bitstamp.rb
@@ -9,6 +9,7 @@
 require 'bitstamp/model'
 
 require 'bitstamp/orders'
+require 'bitstamp/transactions'
 require 'bitstamp/ticker'
 
 String.send(:include, ActiveSupport::Inflector)
@@ -30,6 +31,12 @@ def self.orders
     @@orders ||= Bitstamp::Orders.new
   end
 
+  def self.user_transactions
+    self.sanity_check!
+
+    @@transactions ||= Bitstamp::UserTransactions.new
+  end
+
   def self.balance
     self.sanity_check!
 
diff --git a/lib/bitstamp/helper.rb b/lib/bitstamp/helper.rb
index 8b977c9..4c74ccb 100644
--- a/lib/bitstamp/helper.rb
+++ b/lib/bitstamp/helper.rb
@@ -1,6 +1,9 @@
 module Bitstamp
   module Helper
     def self.parse_objects!(string, klass)
+      # If Bitstamp returned nothing (which it does if the results yield empty) 'cast' it to an array
+      string = "[]" if string == ""
+
       objects = JSON.parse(string)
       objects.collect do |t_json|
         parse_object!(t_json, klass)
diff --git a/lib/bitstamp/model.rb b/lib/bitstamp/model.rb
index 406b20b..0de976e 100644
--- a/lib/bitstamp/model.rb
+++ b/lib/bitstamp/model.rb
@@ -1,5 +1,7 @@
 module Bitstamp
   class Model
+    attr_accessor :error, :message
+
     if ActiveModel::VERSION::MAJOR <= 3
       include ActiveModel::Validations
       include ActiveModel::Conversion