# -*- 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, PropertySheet, interfaces from Products.ERP5Type.XMLObject import XMLObject class FIFODeliverySolver(XMLObject): """ The FIFO solver reduces delivered quantity by reducing the quantity of simulation movements from the last order. """ meta_type = 'ERP5 FIFO Delivery Solver' portal_type = 'FIFO Delivery Solver' add_permission = Permissions.AddPortalContent isIndexable = 0 # We do not want to fill the catalog with objects on which we need no reporting # Declarative security security = ClassSecurityInfo() security.declareObjectProtected(Permissions.AccessContentsInformation) # Default Properties property_sheets = ( PropertySheet.Base , PropertySheet.XMLObject , PropertySheet.CategoryCore , PropertySheet.DublinCore , PropertySheet.DeliverySolver ) # Declarative interfaces zope.interface.implements(interfaces.IDeliverySolver,) # IDeliverySolver Implementation def getTotalQuantity(self): """ Move this to mixin """ total_quantity = 0 for movement in self.getDeliveryValueList(): total_quantity += movement.getQuantity() return total_quantity def setTotalQuantity(self, new_quantity, activate_kw=None): """ """ result = [] remaining_quantity = self.getTotalQuantity() - new_quantity if remaining_quantity < 0: return result simulation_movement_list = self._getSimulationMovementList() for movement in simulation_movement_list: if remaining_quantity: quantity = movement.getQuantity() if quantity < remaining_quantity: result.append((movement, quantity)) remaining_quantity -= quantity movement.edit(quantity=0, delivery_ratio=0, activate_kw=activate_kw) else: result.append((movement, remaining_quantity)) movement_quantity = quantity - remaining_quantity movement.edit(quantity=movement_quantity, delivery_ratio=movement_quantity / new_quantity, activate_kw=activate_kw) remaining_quantity = 0 # Return movement, split_quantity tuples return result def _getSimulationMovementList(self): """ Returns a list of simulation movement sorted from the last order. """ simulation_movement_list = self.getDeliveryValueList() if len(simulation_movement_list) > 1: return sorted(simulation_movement_list, key=lambda x:x.getExplainationValue().getStartDate(), reverse=True) else: return simulation_movement_list