Commit b3e62935 authored by Nicolas Delaby's avatar Nicolas Delaby

Add new Constraint for blacklisted attributes

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@26721 20353a03-c40f-0410-a6d1-a30d3c3de9de
parent 8d6232e1
##############################################################################
#
# Copyright (c) 2002, 2009 Nexedi SA and Contributors. All Rights Reserved.
# Nicolas Delaby <nicolas@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 PropertyExistence import PropertyExistence
from Products.CMFCore.Expression import Expression
class AttributeBlacklisted(PropertyExistence):
"""
This constraint class allows to check
attribute unicity.
Configuration example:
{ 'id' : 'title',
'description' : 'Title must be unique',
'type' : 'AttributeUnicity',
'title': "python: {'portal_type': object.getPortalType(), 'title': object.getTitle(), 'validation_state': 'validated'}",
'condition' : 'object/getTitle',
},
"""
_message_id_list = ['message_invalid_attribute_blacklisted',]
message_invalid_attribute_blacklisted = "Attribute ${attribute_name}: "\
"value is blacklisted"
def checkConsistency(self, obj, fixit=0):
"""Check the object's consistency.
We will make sure that each non None constraint_definition is
satisfied (unicity)
This Constraint use portal_catalog
"""
if not self._checkConstraintCondition(obj):
return []
errors = PropertyExistence.checkConsistency(self, obj, fixit=fixit)
for attribute_name, expression_criterion_dict in self.constraint_definition.items():
message_id = None
mapping = dict(attribute_name=attribute_name)
#Evaluate expression_criterion_dict
expression = Expression(expression_criterion_dict)
from Products.ERP5Type.Utils import createExpressionContext
econtext = createExpressionContext(obj)
criterion_dict = expression(econtext)
result = obj.portal_catalog.countResults(**criterion_dict)[0][0]
if result:
message_id = 'message_invalid_attribute_blacklisted'
# Generate error
if message_id is not None:
errors.append(self._generateError(obj,
self._getMessage(message_id), mapping))
return errors
...@@ -4,6 +4,7 @@ from CategoryMembershipArity import CategoryMembershipArity ...@@ -4,6 +4,7 @@ from CategoryMembershipArity import CategoryMembershipArity
from CategoryRelatedMembershipArity import CategoryRelatedMembershipArity from CategoryRelatedMembershipArity import CategoryRelatedMembershipArity
from AttributeEquality import AttributeEquality from AttributeEquality import AttributeEquality
from AttributeUnicity import AttributeUnicity from AttributeUnicity import AttributeUnicity
from AttributeBlacklisted import AttributeBlacklisted
from PropertyExistence import PropertyExistence from PropertyExistence import PropertyExistence
from CategoryExistence import CategoryExistence from CategoryExistence import CategoryExistence
from CategoryExistence import CategoryAcquiredExistence from CategoryExistence import CategoryAcquiredExistence
......
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