TransformedResource.py 14.1 KB
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##############################################################################
#
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# Copyright (c) 2002, 2004 Nexedi SARL 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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#
# 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 Globals import InitializeClass
from AccessControl import ClassSecurityInfo

from Products.ERP5Type import Permissions, PropertySheet, Constraint, Interface
from Products.ERP5Type.XMLObject import XMLObject
from Products.ERP5Type.XMLMatrix import XMLMatrix
from Products.ERP5Type.Utils import cartesianProduct
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from Products.ERP5Type.Base import TempBase
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from Products.ERP5.Document.Amount import Amount
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from Products.ERP5.Document.Transformation import AggregatedAmountList
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from Products.CMFCore.Expression import Expression
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from Products.ERP5.Document.Predicate import Predicate
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from zLOG import LOG

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class TransformedResource(Predicate, XMLObject, XMLMatrix, Amount):
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    """
        TransformedResource defines which
        resource is being transformed

        - variation
        - quantity

        Maybe defined by mapped values inside the transformed resource

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      XXX Transformation works only for a miximum of 3 variation base category...
      Matrixbox must be rewrite for a clean implementation of n base category

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    """

    meta_type = 'ERP5 Transformed Resource'
    portal_type = 'Transformed Resource'

    # Declarative security
    security = ClassSecurityInfo()
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    security.declareObjectProtected(Permissions.AccessContentsInformation)
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    # Declarative properties
    property_sheets = ( PropertySheet.Base
                      , PropertySheet.SimpleItem
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                      , PropertySheet.CategoryCore
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                      , PropertySheet.Amount
                      , PropertySheet.TransformedResource
                      )

    # Declarative interfaces
    __implements__ = ( Interface.Variated, )

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    ### Variation matrix definition
    #
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    security.declareProtected(Permissions.AccessContentsInformation, 
                              'updateVariationCategoryList')
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    def updateVariationCategoryList(self):
      """
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        Check if variation category list of the resource changed and 
        update transformed resource by doing a set cell range
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      """
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      self.setQVariationBaseCategoryList(self.getQVariationBaseCategoryList())
      self.setVVariationBaseCategoryList(self.getVVariationBaseCategoryList())
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    security.declareProtected(Permissions.ModifyPortalContent, 
                              '_updateQMatrixCellRange')
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    def _updateQMatrixCellRange(self):
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      # XXX use base_id parameter instead
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      cell_range =  self.TransformedResource_asCellRange('quantity')
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      # XXX TransformedResource works only for a maximum of 3 variation
      # base category...
      # Matrixbox must be rewrite for a clean implementation of n base
      # category
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      if len(cell_range) <= 3:
        self.setCellRange(base_id='quantity', *cell_range)
      else:
        raise MoreThan3VariationBaseCategory

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    security.declareProtected(Permissions.ModifyPortalContent, 
                              '_setQVariationBaseCategoryList')
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    def _setQVariationBaseCategoryList(self, value):
      """
        Defines the possible base categories which Quantity value (Q)
        variate on
      """
      self._baseSetQVariationBaseCategoryList(value)
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      # XXX calling updatecellRange is better
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      self._updateQMatrixCellRange()
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    security.declareProtected(Permissions.ModifyPortalContent, 
                              'setQVariationBaseCategoryList')
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    def setQVariationBaseCategoryList(self, value):
      """
        Defines the possible base categories which Quantity value (Q)
        variate on and reindex the object
      """
      self._setQVariationBaseCategoryList(value)
      self.reindexObject()

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    security.declareProtected(Permissions.ModifyPortalContent, 
                              '_updateVMatrixCellRange')
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    def _updateVMatrixCellRange(self):
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      # XXX use base_id parameter instead
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      cell_range =  self.TransformedResource_asCellRange('variation')
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      # XXX TransformedResource works only for a maximum of 3 variation
      # base category...
      # Matrixbox must be rewrite for a clean implementation of n base
      # category
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      if len(cell_range) <= 3:
        self.setCellRange(base_id='variation', *cell_range)
      else:
        raise MoreThan3VariationBaseCategory

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    security.declareProtected(Permissions.ModifyPortalContent, 
                              '_setVVariationBaseCategoryList')
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    def _setVVariationBaseCategoryList(self, value):
      """
        Defines the possible base categories which Variation value (V)
        variate on
      """
      self._baseSetVVariationBaseCategoryList(value)
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      # XXX calling updatecellRange is better
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      self._updateVMatrixCellRange()
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    security.declareProtected(Permissions.ModifyPortalContent, 
                              'setVVariationBaseCategoryList')
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    def setVVariationBaseCategoryList(self, value):
      """
        Defines the possible base categories which Variation value (V)
        variate on and reindex the object
      """
      self._setVVariationBaseCategoryList(value)
      self.reindexObject()

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    security.declareProtected(Permissions.AccessContentsInformation, 
                              'getAggregatedAmountList')
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    def getAggregatedAmountList(self, context=None, REQUEST=None, **kw):
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      """
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        Get all interesting amount value and return AggregatedAmountList
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      """
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      context = self.asContext(context=context, REQUEST=REQUEST, **kw)
      # Create the result object
      aggregated_amount_list = AggregatedAmountList()
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      test_result = self.test(context)
      if test_result:
        # The line must match the context
        # If no predicate is defined on line, the result of the test 
        # must be true
        # Create temporary object to store amount
        from Products.ERP5Type.Document import newTempAmount
        tmp_amount = newTempAmount(self.getPortalObject(), self.getId())
        # Create error string
        error_string = ''
        # Add resource relation
        resource = self.getDefaultResourceValue()
        if resource != None:
          tmp_amount.setResourceValue(resource)
        else:
          error_string += 'No resource defined on %s' % self.getRelativeUrl()
        # First, we set initial values for quantity and variation
        # Currently, we only consider discrete variations
        # Continuous variations will be implemented in a future version 
        # of ERP5
        # Set quantity unit
        quantity_unit = self.getQuantityUnit()
        if quantity_unit is not None:
          tmp_amount.setQuantityUnitValue(quantity_unit)
        # Set efficiency
        efficiency =  self.getEfficiency()
        if efficiency is None or efficiency is '' or efficiency == 0.0:
          efficiency = 1.0
        else:
          efficiency = float(efficiency)
### current get quantity comportment exemple ###
# We define on transformation line:
#   default_quantity = q
#   quantity matrix
#     |   Child | Child/32 | Child/34 | Men | Women |
#     |   a     |          |   b      | c   |       |
# Result from getAggregatedAmountList:
#               context   |    quantity
#              _________________________
#               Child     |       a
#               Child/32  |       a      => acquired from Child
#               Child/34  |       a or b => we do not know which cell will be choosed
#               Child/36  |       a      => acquired from Child 
#               Men       |       c
#               Women     |       Error  => no cell found
#               noContext |       Error  => cell exist, but no context given

### comportment that JPS want ?? ###
# We define on transformation line:
#   default_quantity = q
#   quantity matrix
#     |   Child | Child/32 | Child/34 | Men | Women |
#     |   a     |          |   b      | c   |       |
# Result from getAggregatedAmountList:
#               context   |    quantity
#              _________________________
#               Child     |       a
#               Child/32  |       a      => acquired from Child
#               Child/34  |       a or b => we do not know which cell will be choosed
#               Child/36  |       Error  => no such key in matrixbox cell range
#               Men       |       c
#               Women     |       Error  => no cell found
#               noContext |       Error  => cell exist, but no context given

# futur cool get quantity comportment exemple 
# We define on transformation line:
#   default_quantity = q
#   quantity matrix
#     |   Child | Child/32 | Child/34 | Men | Women |
#     |   a     |          |   b      | c   |       |
# Result from getAggregatedAmountList:
#               context   |    quantity
#              _________________________
#               Child     |       a
#               Child/32  |       a      => acquired from Child
#               Child/34  |       b      =>   test method must return a priority to choose between Child and Child/34
#               Child/36  |       Error  => no such key in matrixbox cell range
#               Men       |       c
#               Women     |       q      =>   acquired from default quantity
#               noContext |       q      =>   acquired from default quantity

        # get Quantity
        quantity_defined_by = None
        quantity = None
        # We will browse the mapped values and determine which apply
        cell_key_list = self.getCellKeyList(base_id='quantity')
        if cell_key_list not in [(),[]]: 
          if context == None:
            raise KeyError, \
                  "No context defined on TransformedResource '%s'" % \
                      (self.getRelativeUrl(), )
          for key in cell_key_list:
            if self.hasCell(base_id='quantity', *key):
              mapped_value = self.getCell(base_id='quantity', *key)
              if mapped_value.test(context):
                if 'quantity' in mapped_value.getMappedValuePropertyList():
                  quantity = mapped_value.getProperty('quantity')
                  quantity_defined_by = mapped_value.getRelativeUrl()
          if quantity in [None,'']:
            raise KeyError, \
                  "No cell quantity matching on TransformedResource '%s' for \
                   current context" % ( self.getRelativeUrl() ,   )
        else:
          quantity = self.getQuantity()
          quantity_defined_by = self.getRelativeUrl()
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        if quantity in [None,'']:
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          raise KeyError, \
                "No quantity defined on TransformedResource '%s' for \
                 current context" % (self.getRelativeUrl(), )
        # If we have to do this, then there is a problem....
        # We'd better have better API for this, 
        # like an update function in the mapped_value
        try:
          quantity = float(quantity)
        except ValueError:
          error_string += 'Quantity is not a float.'
        # Get the variation category list
        variation_category_list_defined_by = None
        variation_category_list = None
        # We will browse the mapped values and determine which apply
        cell_key_list = self.getCellKeyList( base_id = 'variation')
        if cell_key_list not in [(),[]]: 
          if context == None:
            raise KeyError, \
                  "No context defined on TransformedResource '%s'" % \
                      (self.getRelativeUrl(), )
          for key in cell_key_list:
            if self.hasCell(base_id='variation', *key):
              mapped_value = self.getCell(base_id='variation', *key)
              if mapped_value.test(context):
                vcl = mapped_value.getCategoryList()
                if vcl != []:
                  variation_category_list = vcl
                  variation_category_list_defined_by = \
                      mapped_value.getRelativeUrl()
          if variation_category_list in [None,'',[], ()]:
            if quantity == 0:
              return aggregated_amount_list
            else:
              raise KeyError, \
                    "No cell variation matching on TransformedResource '%s' \
                     for current context" % (self.getRelativeUrl(), )
        else:
          variation_category_list = self._getVariationCategoryList()
          variation_category_list_defined_by = self.getRelativeUrl()
        # Store values in Amount
        tmp_amount._edit(
          # Properties define on transformation line
          description =  self.getDescription(),
          efficiency = efficiency,
          quantity = quantity,
          # This fields only store some informations for debugging if necessary
          quantity_defined_by  = quantity_defined_by,
          variation_category_list_defined_by = variation_category_list_defined_by, 
          error_string = error_string
        )
        tmp_amount.setVariationCategoryList(variation_category_list)
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        # Variation property dict
        tmp_amount.setVariationPropertyDict(self.getVariationPropertyDict())
        aggregated_amount_list.append(tmp_amount)
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      return aggregated_amount_list