Complete refactoring of orders-workflow.

OrderResult tables are removed. Data consistency is now possible through new article.price-history (ArticlePrice).
Balancing-workflow needs to be updated.

app/models/invoice.rb

@@ -1,24 +1,28 @@
 # == Schema Information
-# Schema version: 20090113111624
+# Schema version: 20090120184410
 #
 # Table name: invoices
 #
-#  id          :integer(4)      not null, primary key
-#  supplier_id :integer(4)
-#  delivery_id :integer(4)
-#  number      :string(255)
-#  date        :date
-#  paid_on     :date
-#  note        :text
-#  amount      :decimal(8, 2)   default(0.0), not null
-#  created_at  :datetime
-#  updated_at  :datetime
+#  id             :integer(4)      not null, primary key
+#  supplier_id    :integer(4)
+#  delivery_id    :integer(4)
+#  number         :string(255)
+#  date           :date
+#  paid_on        :date
+#  note           :text
+#  amount         :decimal(8, 2)   default(0.0), not null
+#  created_at     :datetime
+#  updated_at     :datetime
+#  order_id       :integer(4)
+#  deposit        :decimal(8, 2)   default(0.0), not null
+#  deposit_credit :decimal(8, 2)   default(0.0), not null
 #
 
 class Invoice < ActiveRecord::Base
 
   belongs_to :supplier
   belongs_to :delivery
+  belongs_to :order
 
   validates_presence_of :supplier_id
   validates_uniqueness_of :date, :scope => [:supplier_id]
@@ -29,4 +33,14 @@ class Invoice < ActiveRecord::Base
   def amount=(amount)
     self[:amount] = String.delocalized_decimal(amount)
   end
+  
+  # Custom attribute setter that accepts decimal numbers using localized decimal separator.
+  def deposit=(deposit)
+    self[:deposit] = String.delocalized_decimal(deposit)
+  end
+
+  # Custom attribute setter that accepts decimal numbers using localized decimal separator.
+  def deposit_credit=(deposit)
+    self[:deposit_credit] = String.delocalized_decimal(deposit)
+  end
 end