############################################################################## # # Copyright (c) 2009 Nexedi KK, Nexedi SA and Contributors. All Rights Reserved. # # WARNING: This program as such is intended to be used by professional # programmers who take the whole responsability 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 # garantees 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. # ############################################################################## from AccessControl import ClassSecurityInfo from Products.ERP5Type import Permissions, PropertySheet from Products.ERP5.Document.Path import Path from Products.ERP5.Document.Alarm import PeriodicityMixin class PeriodicityLineMixin(PeriodicityMixin): """ A class extends PeriodicityMixin to add term. """ security = ClassSecurityInfo() security.declareObjectProtected(Permissions.AccessContentsInformation) property_sheets = ( PropertySheet.PeriodicityTerm, PropertySheet.CategoryCore, ) security.declareProtected(Permissions.AccessContentsInformation, 'getPeriodicityTermStopDate') def getPeriodicityTermStopDate(self, start_date, default=None): """Return periodicity term's stop_date by calculating periodicity term length with a start_date argument and other own properties. """ length_number = self.getPeriodicityTermLengthNumber() time_scale = self.getPeriodicityTermTimeScale() scope_type = self.getPeriodicityTermScopeType() if scope_type: method = self._getTypeBasedMethod('calculateScopeTypeStopDate') if method is None: raise RuntimeError, 'Type based method calculateScopeTypeStopDate does not exist.' else: return method(scope_type, start_date) elif time_scale: if time_scale=='day': day = length_number return start_date+day else: raise RuntimeError, 'Unknown time scale: %s' % time_scale else: return None class PeriodicityLine(Path, PeriodicityLineMixin): """ A class defines how often an order is made. """ meta_type = 'ERP5 Periodicity Line' portal_type = 'Periodicity Line' add_permission = Permissions.AddPortalContent security = ClassSecurityInfo() security.declareObjectProtected(Permissions.AccessContentsInformation) property_sheets = Path.property_sheets+(PropertySheet.Periodicity, PropertySheet.PeriodicityTerm, ) security.declareProtected(Permissions.AccessContentsInformation, 'getDatePeriodList') def getDatePeriodList(self, from_date, to_date): """ Returns a list of a tuple of start_date and stop_date. """ effective_date = self.getEffectiveDate() expiration_date = self.getExpirationDate() result = [] if expiration_date is not None and to_date > expiration_date: to_date = expiration_date next_start_date = self.getNextPeriodicalDate(from_date) while next_start_date <= to_date: if next_start_date >= effective_date: result.append((next_start_date, self.getPeriodicityTermStopDate(next_start_date))) new_next_start_date = self.getNextPeriodicalDate(next_start_date) if new_next_start_date==next_start_date: # prevent infinite loop. break else: next_start_date = new_next_start_date return result