Fixed bug order.profit calculation.

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

test/unit/stock_article_test.rb

@@ -1,3 +1,30 @@
+# == Schema Information
+# Schema version: 20090317175355
+#
+# Table name: articles
+#
+#  id                  :integer         not null, primary key
+#  name                :string(255)     default(""), not null
+#  supplier_id         :integer         default(0), not null
+#  article_category_id :integer         default(0), not null
+#  unit                :string(255)     default(""), not null
+#  note                :string(255)
+#  availability        :boolean         default(TRUE), not null
+#  manufacturer        :string(255)
+#  origin              :string(255)
+#  shared_updated_on   :datetime
+#  price               :decimal(, )
+#  tax                 :float
+#  deposit             :decimal(, )     default(0.0)
+#  unit_quantity       :integer         default(1), not null
+#  order_number        :string(255)
+#  created_at          :datetime
+#  updated_at          :datetime
+#  quantity            :integer         default(0)
+#  deleted_at          :datetime
+#  type                :string(255)
+#
+
 require 'test_helper'
 
 class StockArticleTest < ActiveSupport::TestCase