Allow input of decimal numbers for GroupOrderArticle-result.

db/migrate/20090405131156_modify_group_order_article_result.rb

@@ -0,0 +1,9 @@
+class ModifyGroupOrderArticleResult < ActiveRecord::Migration
+  def self.up
+    change_column :group_order_articles, :result, :decimal, :precision => 8, :scale => 3
+  end
+
+  def self.down
+    change_column :group_order_articles, :result, :integer
+  end
+end