TradeCondition.py 16.3 KB
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# -*- coding: utf-8 -*-
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##############################################################################
#
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# Copyright (c) 2002-2009 Nexedi SA and Contributors. All Rights Reserved.
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#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
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#                    Romain Courteaud <romain@nexedi.com>
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#                    Łukasz Nowak <luke@nexedi.com>
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#                    Fabien Morin <fabien@nexedi.com>
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#
# 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

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from Products.ERP5Type import Permissions, PropertySheet, interfaces
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from Products.ERP5.Document.Transformation import Transformation
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from Products.ERP5.Document.Path import Path
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from Products.ERP5.AggregatedAmountList import AggregatedAmountList
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from Products.ERP5Type.XMLMatrix import XMLMatrix
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import zope.interface

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# XXX TODO : getTradeModelLineComposedList and findSpecialiseValueList should
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# probably move to Transformation (better names should be used)
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# XXX TODO: review naming of new methods
# XXX WARNING: current API naming may change although model should be stable.
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class CircularException(Exception): pass

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class TradeCondition(Path, Transformation, XMLMatrix):
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    """
      Trade Conditions are used to store the conditions (payment, logistic,...)
      which should be applied (and used in the orders) when two companies make
      business together
    """
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    edited_property_list = ['price', 'causality','resource','quantity',
        'base_application_list', 'base_contribution_list']
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    meta_type = 'ERP5 Trade Condition'
    portal_type = 'Trade Condition'
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    model_line_portal_type_list = ('Trade Model Line',)
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    isPredicate = 1
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    # Declarative security
    security = ClassSecurityInfo()
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    security.declareObjectProtected(Permissions.AccessContentsInformation)
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    # Declarative properties
    property_sheets = ( PropertySheet.Base
                      , PropertySheet.XMLObject
                      , PropertySheet.CategoryCore
                      , PropertySheet.DublinCore
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                      , PropertySheet.Folder
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                      , PropertySheet.Comment
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                      , PropertySheet.Arrow
                      , PropertySheet.TradeCondition
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                      , PropertySheet.Order
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                      )

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    zope.interface.implements(interfaces.ITransformation)

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    security.declareProtected(Permissions.AccessContentsInformation,
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                              'updateAggregatedAmountList')
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    def updateAggregatedAmountList(self, context, movement_list=None, rounding=None, **kw):
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      existing_movement_list = context.getMovementList()
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      aggregated_amount_list = self.getAggregatedAmountList(context=context,
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          movement_list=movement_list, **kw)
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      modified_resource_list = []
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      normal_use_list = self.getPortalObject().portal_preferences\
              .getPreferredNormalResourceUseCategoryList()
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      # check if the existing movements are in aggregated movements
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      movement_to_delete_list = []
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      movement_to_add_list = []
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      for movement in existing_movement_list:
        keep_movement = False
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        # check if the movement is a generated one or entered by the user.
        # If it has been entered by user, keep it.
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        resource = movement.getResourceValue()
        if resource is not None and \
            len(set(normal_use_list).intersection(set(resource\
            .getUseList()))):
          keep_movement = True
          break
        for amount in aggregated_amount_list:
          # if movement is generated and if not exist, append to delete list
          update_kw = {}
          for p in self.edited_property_list:
            update_kw[p] = amount.getProperty(p)
          if movement.getProperty('resource') == update_kw['resource'] and\
              movement.getVariationCategoryList() == \
              amount.getVariationCategoryList():
            movement.edit(**update_kw)
            modified_resource_list.append(update_kw['resource'])
            keep_movement = True
        if not keep_movement:
          movement_to_delete_list.append(movement)
      movement_to_add_list = [amount for amount in aggregated_amount_list if
          amount.getResource() not in modified_resource_list]
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      return {'movement_to_delete_list' : movement_to_delete_list,
              'movement_to_add_list': movement_to_add_list}
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    security.declareProtected(Permissions.AccessContentsInformation,
        'findSpecialiseValueList')
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    def findSpecialiseValueList(self, context, portal_type_list=None):
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      """Returns a list of specialised objects representing inheritance tree.

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         Uses Breadth First Search.
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      """
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      if portal_type_list is None:
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        portal_type_list = [context.getPortalType()]
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      if context.getPortalType() in portal_type_list:
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        specialise_value_list = [context]
        visited_trade_condition_list = [context]
      else:
        specialise_value_list = context.getSpecialiseValueList(\
            portal_type=portal_type_list)
        visited_trade_condition_list = context.getSpecialiseValueList(\
            portal_type=portal_type_list)
      while len(specialise_value_list) != 0:
        specialise = specialise_value_list.pop(0)
        children = specialise.getSpecialiseValueList(\
            portal_type=portal_type_list)
        specialise_value_list.extend(children)
        if not set(children).intersection(visited_trade_condition_list):
          visited_trade_condition_list.extend(children)
        else:
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          raise CircularException
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      return visited_trade_condition_list
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    security.declareProtected(Permissions.AccessContentsInformation,
                              'getTradeModelLineComposedList')
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    def getTradeModelLineComposedList(self, context=None, portal_type_list=None):
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      """Returns list of Trade Model Lines using composition.

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      Reference of Trade Model Line is used to hide other Trade Model Line
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      In chain first found Trade Model Line has precedence
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      Context's, if not None, Trade Model Lines have precedence
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      Result is sorted in safe order to do one time pass - movements which
      applies are before its possible contributions.
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      """
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      if portal_type_list is None:
        portal_type_list = self.model_line_portal_type_list
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      reference_list = []
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      trade_model_line_composed_list = []
      containting_object_list = []
      if context is not None:
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        document = context
        if getattr(context, 'getExplanationValue', None) is not None:
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          # if context is movement it is needed to ask its explanation
          # for contained Trade Model Lines
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          document = context.getExplanationValue()
        containting_object_list.append(document)
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      start_date = getattr(context, 'start_date', None)
      stop_date = getattr(context, 'stop_date', None)
      containting_object_list.extend(self.findEffectiveSpecialiseValueList(context=self,
        start_date=start_date, stop_date=start_date))
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      for specialise in containting_object_list:
        for trade_model_line in specialise.contentValues(
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            portal_type=portal_type_list):
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          reference = trade_model_line.getReference()
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          if reference not in reference_list or reference is None:
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            reference_list.append(reference)
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            base_contribution_list = trade_model_line \
              .getBaseContributionList()
            if len(base_contribution_list) == 0:
              # when movement will not generate anything which contributes
              # it is safe to be last on list
              trade_model_line_composed_list.append(trade_model_line)
            else:
              # if movements contributes to anything it have to be placed
              # just before to what it contributes
              index = 0
              inserted = False
              for old_trade_model_line in trade_model_line_composed_list:
                for base_application in old_trade_model_line \
                  .getBaseApplicationList():
                  if base_application in base_contribution_list:
                    trade_model_line_composed_list.insert(index,
                        trade_model_line)
                    inserted = True
                    break
                if inserted:
                  break
                index += 1
              if not inserted:
                # last resort - nothing was found, it is safe to put movement
                # in beginning of list
                trade_model_line_composed_list.insert(0, trade_model_line)
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      return trade_model_line_composed_list
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    security.declareProtected(Permissions.AccessContentsInformation,
                              'getAggregatedAmountList')
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    def getAggregatedAmountList(self, context, movement_list=None, **kw):
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      if movement_list is None:
        movement_list = []
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      result = AggregatedAmountList()

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      trade_model_line_composed_list = \
          self.getTradeModelLineComposedList(context)

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      need_to_run = 1
      while need_to_run:
        need_to_run = 0
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        for model_line in trade_model_line_composed_list:
          model_line_result = model_line.getAggregatedAmountList(context,
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            movement_list=movement_list,
            current_aggregated_amount_list=result,
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            **kw)
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          result.extend(model_line_result)
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        if len(result) != len(movement_list):
          # something was added
          need_to_run = 1
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          movement_list = result
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      # remove movement that should not be created
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      result = [movement for movement in result if movement.getCausalityValue().getCreateLine()]
      return result
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    security.declareProtected( Permissions.AccessContentsInformation, 'getCell')
    def getCell(self, *kw , **kwd):
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      '''Overload the function getCell to be able to search a cell on the
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      inheritance model tree if the cell is not found on current one.
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      '''
      cell = XMLMatrix.getCell(self, *kw, **kwd)
      if cell is None:
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        # if cell not found, look on the inherited models
        start_date = kwd.has_key('paysheet') and \
            kwd['paysheet'].getStartDate() or None
        stop_date = kwd.has_key('paysheet') and \
            kwd['paysheet'].getStopDate() or None
        model_list = self.findEffectiveSpecialiseValueList(\
            context=self, start_date=start_date, stop_date=stop_date)
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        for specialised_model in model_list:
          cell = XMLMatrix.getCell(specialised_model, *kw, **kwd)
          if cell is not None:
            return cell
      return cell

    security.declareProtected(Permissions.AccessContentsInformation,
        'getReferenceDict')
    def getReferenceDict(self, portal_type_list, property_list=None):
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      '''Return a dict containing all id's of the objects contained in
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      this model and corresponding to the given portal_type. The key of the dict
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      are the reference (or id if no reference)
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      '''
      if property_list is None:
        property_list=[]
      reference_dict = {}
      object_list = self.contentValues(portal_type=portal_type_list,
          sort_on='id')
      for obj in object_list:
        keep = (len(property_list) == 0)
        for property_ in property_list:
          if obj.hasProperty(property_):
            keep = 1
            break
        if keep:
          reference_dict[obj.getProperty('reference', obj.getId())] = obj.getId()
      return reference_dict

    security.declareProtected(Permissions.AccessContentsInformation,
        'findEffectiveSpecialiseValueList')
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    def findEffectiveSpecialiseValueList(self, context, start_date=None,
        stop_date=None):
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      '''Returns a list of effective specialised objects representing
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      inheritance tree.
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      An effective object is an object which start and stop_date are equal (or
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      included) to the range of the given start and stop_date.
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      If no start date and stop date are provided, findSpecialiseValueList is
      returned
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      '''
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      model_list = self.findSpecialiseValueList(context=context)
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      if start_date is None and stop_date is None:
        return model_list
      new_list = [model.getEffectiveModel(start_date, stop_date) for model in\
          model_list]
      return new_list

    security.declareProtected(Permissions.AccessContentsInformation,
        'getInheritanceReferenceDict')
    def getInheritanceReferenceDict(self, portal_type_list,
        property_list=None):
      '''Returns a dict with the model url as key and a list of reference as
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      value. A Reference can appear only one time in the final output.
      If property_list is not empty, documents which don't have any of theses
      properties will be skipped.
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      '''
      if property_list is None:
        property_list=[]
      model_list = self.findSpecialiseValueList(context=self)
      reference_list = []
      model_reference_dict = {}
      for model in model_list:
        id_list = []
        model_reference_list = model.getReferenceDict(
                             portal_type_list, property_list=property_list)
        for reference in model_reference_list.keys():
          if reference not in reference_list:
            reference_list.append(reference)
            id_list.append(model_reference_list[reference])
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        if len(id_list) != 0:
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          model_reference_dict[model.getRelativeUrl()]=id_list
      return model_reference_dict

    security.declareProtected(Permissions.AccessContentsInformation,
        'getEffectiveModel')
    def getEffectiveModel(self, start_date=None, stop_date=None):
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      '''Return the more appropriate model using effective_date, expiration_date
      and version number.
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      An effective model is a model which start and stop_date are equal (or
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      excluded) to the range of the given start and stop_date and with the
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      higher version number (if there is more than one)
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      '''
      reference = self.getReference()
      if not reference:
        return self
      effective_model_list = []
      model_object_list = [result.getObject() for result in \
          self.portal_catalog(portal_type=self.portal_type,
                              reference=reference,)]
                              #sort_on=(('version','descending'),))]
      # XXX currently, version is not catalogued, so sort using python
      def sortByVersion(a, b):
        return cmp(b.getVersion(), a.getVersion())
      model_object_list.sort(sortByVersion)

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      # if there is model which has effective period containing
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      # the start_date and the stop date of the paysheet, return it
      for current_model in model_object_list:
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        if current_model.getEffectiveDate() <= start_date and \
            current_model.getExpirationDate() >= stop_date:
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          effective_model_list.append(current_model)
      if len(effective_model_list):
        return effective_model_list[0]
      # if no effective model are found (ex. because dates are None), return self
      return self

    security.declareProtected(Permissions.AccessContentsInformation,
        'getModelIneritanceEffectiveProperty')
    def getModelIneritanceEffectiveProperty(self, paysheet, property_name):
      """Get a property from an effective model
      """
      v = self.getProperty(property_name)
      if v:
        return v
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      model_list = self.findEffectiveSpecialiseValueList(context=self,
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          start_date=paysheet.getStartDate(), stop_date=paysheet.getStopDate())
      for specialised_model in model_list:
        v = specialised_model.getProperty(property_name)
        if v:
          return v