Fixed bug order.profit calculation.

Order.profit will also be saved, when order is closed.

test/unit/shared_article_test.rb

@@ -1,3 +1,27 @@
+# == Schema Information
+# Schema version: 20090317175355
+#
+# Table name: articles
+#
+#  id             :integer(4)      not null, primary key
+#  name           :string(255)     not null
+#  supplier_id    :integer(4)      not null
+#  number         :string(255)
+#  note           :string(255)
+#  manufacturer   :string(255)
+#  origin         :string(255)
+#  unit           :string(255)
+#  price          :decimal(8, 2)   default(0.0), not null
+#  tax            :decimal(3, 1)   default(7.0), not null
+#  deposit        :decimal(8, 2)   default(0.0), not null
+#  unit_quantity  :decimal(4, 1)   default(1.0), not null
+#  scale_quantity :decimal(4, 2)
+#  scale_price    :decimal(8, 2)
+#  created_on     :datetime
+#  updated_on     :datetime
+#  list           :string(255)
+#
+
 require File.dirname(__FILE__) + '/../test_helper'
 
 class SharedArticleTest < Test::Unit::TestCase