- movement group to find first causality in simulation tree starting from...

 - movement group to find first causality in simulation tree starting from parent movement with checking upon updating existing delivery


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@26828 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/FirstCausalityMovementGroup.py

+  # -*- coding: utf-8 -*-
+##############################################################################
+#
+# Copyright (c) 2008 Nexedi SA and Contributors. All Rights Reserved.
+#                           Łukasz Nowak <luke@nexedi.com>
+#
+# 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.CausalityMovementGroup import CausalityMovementGroup
+
+class FirstCausalityMovementGroup(CausalityMovementGroup):
+  """
+  Returns first found causality, using delivery of parent movements
+  Non modifiable version of DeliveryCausalityAssignmentMovementGroup
+  """
+  meta_type = 'ERP5 First Causality Movement Group'
+  portal_type = 'First Causality Movement Group'
+
+  def test(self, movement, property_dict, **kw):
+    """Compare explanation to now if it is possible to update delivery"""
+    explanation = property_dict.get('_explanation','')
+    if movement.getRelativeUrl() == explanation:
+      return True, {}
+    else:
+      return False, {}
+
+  def _getExplanationRelativeUrl(self, movement):
+    """ Get the order value for a movement """
+    parent = movement.getParentValue().getParentValue()
+    # Go upper into the simulation tree in order to find a delivery link
+    while parent.getDeliveryValue() is None and not(parent.isRootAppliedRule()):
+      parent = parent.getParentValue()
+    delivery_movement = parent.getDeliveryValue()
+    delivery_url = None
+    if delivery_movement is not None:
+      delivery = delivery_movement.getExplanationValue()
+      if delivery is not None:
+        delivery_url = delivery.getRelativeUrl()
+    return delivery_url
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