initial definition of interfaces for Base

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@27510 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/Base.py

+# -*- coding: utf-8 -*-
 ##############################################################################
 #
 # Copyright (c) 2002-2003 Nexedi SARL and Contributors. All Rights Reserved.
@@ -49,6 +50,7 @@ from Products.DCWorkflow.Transitions import TRIGGER_WORKFLOW_METHOD, TRIGGER_USE
 
 from Products.ERP5Type import _dtmldir
 from Products.ERP5Type import PropertySheet
+from Products.ERP5Type import interfaces
 from Products.ERP5Type import Permissions
 from Products.ERP5Type.Utils import UpperCase
 from Products.ERP5Type.Utils import convertToUpperCase, convertToMixedCase
@@ -84,6 +86,8 @@ import random
 import inspect
 from pprint import pformat
 
+import zope.interface
+
 from ZODB.POSException import ConflictError
 from zLOG import LOG, INFO, ERROR, WARNING
 
@@ -779,6 +783,11 @@ class Base( CopyContainer,
   # Declarative properties
   property_sheets = ( PropertySheet.Base, )
 
+  # Declarative interfaces
+  zope.interface.implements(interfaces.ICategoryAccessProvider,
+                            interfaces.IValueAccessProvider,
+                            )
+
   # We want to use a default property view
   manage_propertiesForm = DTMLFile( 'dtml/properties', _dtmldir )
 
@@ -2411,7 +2420,7 @@ class Base( CopyContainer,
     return self.getId()
 
   security.declareProtected(Permissions.AccessContentsInformation, 'Title' )
-  Title = getTitleOrId
+  Title = getTitleOrId # Why ???
 
   # CMF Compatibility
   security.declareProtected(Permissions.AccessContentsInformation, 'title_or_id' )

product/ERP5Type/interfaces/__init__.py

+# -*- coding: utf-8 -*-
 from cache_plugin import ICachePlugin
 from category_access_provider import ICategoryAccessProvider
+from value_access_provider import IValueAccessProvider
 from constraint import IConstraint

product/ERP5Type/interfaces/value_access_provider.py

+##############################################################################
+#
+# Copyright (c) 2009 Nexedi SA and Contributors. All Rights Reserved.
+#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
+#
+# 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 zope.interface import Interface
+
+class IValueAccessProvider(Interface):
+  """
+    This interface defines the methods which must be implemented
+    by a class in order to support Value accessors.
+  """
+  def _getDefaultValue(id, spec=(), filter=None, portal_type=(), checked_permission=None, **kw):
+    """
+    """
+
+  def _getValueList(id, spec=(), filter=None, portal_type=(), checked_permission=None, **kw):
+    """
+    """
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