First working version for transformations (using new transformation code which...

First working version for transformations (using new transformation code which is not yet committed).

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@33187 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/mixin/variation.py

+# -*- coding: utf-8 -*-
+##############################################################################
+#
+# Copyright (c) 2010 Nexedi SA and Contributors. All Rights Reserved.
+#
+# WARNING: This program as such is intended to be used by professional
+# programmers who take the whole responsibility of assessing all potential
+# consequences resulting from its eventual inadequacies and bugs
+# End users who are looking for a ready-to-use solution with commercial
+# guarantees and support are strongly adviced to contract a Free Software
+# Service Company
+#
+# This program is Free Software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+##############################################################################
+
+import zope.interface
+from AccessControl import ClassSecurityInfo
+from Products.ERP5Type import Permissions, interfaces
+from Products.ERP5.Document.Amount import Amount
+
+class VariationMixin:
+  """
+
+    Although MappedValue are supposed to be independent of any
+    design choice, we have to implement them as subclasses of
+    Amount in order to make sure they provide a complete
+    variation interface. In particular, we want to be able
+    to call getVariationValue / setVariationValue on a
+    MappedValue.
+    (XXX - NO MORE)
+
+    XXX - Amount should be remove from here
+    
+    
+    Interesting Idea: properties and categories of the mapped value
+    (not of the predicate) could be handled through additional matrix
+    dimensions rather than through ad-hoc definition.  
+  """
+
+  
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