Add a movement group to group the movements without assignment.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@38534 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/PropertyGroupingMovementGroup.py

+##############################################################################
+#
+# Copyright (c) 2010 Nexedi KK 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.
+#
+##############################################################################
+
+from Products.ERP5.Document.MovementGroup import MovementGroup
+
+class PropertyGroupingMovementGroup(MovementGroup):
+  """
+  This movement group is used to group movements without assignment.
+  It only take care that the movements are going to separate or not.
+  """
+  meta_type = 'ERP5 Property Grouping Movement Group'
+  portal_type = 'Property Grouping Movement Group'
+
+  def test(self, document, property_dict, **kw):
+    # We always separate the movements from the exsiting document, because we 
+    # did not assign the properties into the document thanks to this movement group.
+    # Therefore their is no way to compare the properties between the document
+    # and the movements. In other words, they are always different.
+    return False, {}
+
+  def _separate(self, movement_list):
+    if not movement_list:
+      return []
+    
+    movement_dict = {}
+    tested_property_list = self.getTestedPropertyList() 
+    for movement in movement_list:
+      key_value_list = []
+      getProperty = getattr(movement, 'getMappedProperty', movement.getProperty)
+      for prop in tested_property_list:
+        key_value_list.append((prop, getProperty(prop)))
+      # key_value_list as a grouping key
+      movement_dict.setdefault(tuple(key_value_list), []).append(movement)
+    return [(movement_list, {}) for movement_list in movement_dict.values()]