MappedValue.py

##############################################################################
#
# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
#
# WARNING: This program as such is intended to be used by professional
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# Service Company
#
# This program is Free Software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
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# of the License, or (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
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##############################################################################

import zope.interface

from Globals import InitializeClass
from AccessControl import ClassSecurityInfo

from Products.ERP5Type import Permissions, PropertySheet, Constraint, interfaces
from Products.ERP5Type.Utils import UpperCase

from Products.ERP5.Document.Predicate import Predicate
from Products.ERP5.Document.Amount import Amount

from zLOG import LOG

class MappedValue(Predicate, Amount):
  """
    A MappedValue allows to associate a value to a domain

    Although MappedValue are supposed to be independent of any
    design choice, we have to implement them as subclasses of
    Amount in order to make sure they provide a complete
    variation interface. In particular, we want to be able
    to call getVariationValue / setVariationValue on a
    MappedValue.

    XXX - Amount should be remove from here
    
    
    Interesting Idea: properties and categories of the mapped value
    (not of the predicate) could be handled through additional matrix
    dimensions rather than through ad-hoc definition.    
  """
  meta_type = 'ERP5 Mapped Value'
  portal_type = 'Mapped Value'
  add_permission = Permissions.AddPortalContent
  isPortalContent = 1
  isRADContent = 1

  # Declarative security
  security = ClassSecurityInfo()
  security.declareObjectProtected(Permissions.AccessContentsInformation)

  # Declarative interfaces
  zope.interface.implements( interfaces.IPredicate, interfaces.IVariated,)

  # Declarative properties
  property_sheets = ( PropertySheet.Base
                      , PropertySheet.SimpleItem
                      , PropertySheet.CategoryCore
                      , PropertySheet.Predicate
                      , PropertySheet.MappedValue
                    )

  security.declarePrivate( '_edit' )
  def _edit(self, REQUEST=None, force_update = 0, **kw):
    # We must first prepare the mapped value before we do the edit
    if kw.has_key('mapped_value_property_list'):
      self._setProperty('mapped_value_property_list', kw['mapped_value_property_list'])
    if kw.has_key('default_mapped_value_property'):
      self._setProperty('default_mapped_value_property', kw['default_mapped_value_property'])
    if kw.has_key('mapped_value_property'):
      self._setProperty('mapped_value_property', kw['mapped_value_property'])
    if kw.has_key('mapped_value_property_set'):
      self._setProperty('mapped_value_property_set', kw['mapped_value_property_set'])
    Predicate._edit(self, REQUEST=REQUEST, force_update = force_update, **kw)