[Erp5-report] r45645 romain - /erp5/trunk/products/ERP5/Document/AttributeUnicityConstraint.py
nobody at svn.erp5.org
nobody at svn.erp5.org
Fri Apr 22 15:15:42 CEST 2011
Author: romain
Date: Fri Apr 22 15:15:42 2011
New Revision: 45645
URL: http://svn.erp5.org?rev=45645&view=rev
Log:
Migrate this constraint to ZODB PS
Added:
erp5/trunk/products/ERP5/Document/AttributeUnicityConstraint.py
Added: erp5/trunk/products/ERP5/Document/AttributeUnicityConstraint.py
URL: http://svn.erp5.org/erp5/trunk/products/ERP5/Document/AttributeUnicityConstraint.py?rev=45645&view=auto
==============================================================================
--- erp5/trunk/products/ERP5/Document/AttributeUnicityConstraint.py (added)
+++ erp5/trunk/products/ERP5/Document/AttributeUnicityConstraint.py [utf8] Fri Apr 22 15:15:42 2011
@@ -0,0 +1,85 @@
+# -*- coding: utf-8 -*-
+##############################################################################
+#
+# Copyright (c) 2002, 2005 Nexedi SARL and Contributors. All Rights Reserved.
+# Sebastien Robin <seb at nexedi.com>
+# Jean-Paul Smets <jp at nexedi.com>
+# Romain Courteaud <romain at nexedi.com>
+# Nicolas Delaby <nicolas at 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 Products.CMFCore.Expression import Expression
+
+from Products.ERP5Type import PropertySheet
+from Products.ERP5Type.Utils import createExpressionContext
+from Products.ERP5Type.Core.PropertyExistenceConstraint import \
+ PropertyExistenceConstraint
+from Products.ZSQLCatalog.SQLCatalog import Query, NegatedQuery
+
+class AttributeUnicityConstraint(PropertyExistenceConstraint):
+ """
+ This constraint class allows to check
+ attribute unicity.
+ """
+ meta_type = 'ERP5 Attribute Unicity Constraint'
+ portal_type = 'Attribute Unicity Constraint'
+
+ property_sheets = PropertyExistenceConstraint.property_sheets + \
+ (PropertySheet.AttributeUnicityConstraint,)
+
+ _message_id_tuple = ('message_invalid_attribute_unicity',)
+
+
+ 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
+ """
+ error_list = PropertyExistenceConstraint._checkConsistency(self, obj,
+ fixit=fixit)
+ attribute_name = self.getConstraintProperty()
+ expression_criterion_dict = self.getFilterParameter()
+
+ message_id = None
+ mapping = dict(attribute_name=attribute_name)
+ #Evaluate expression_criterion_dict
+ expression = Expression(expression_criterion_dict)
+ econtext = createExpressionContext(obj)
+ criterion_dict = expression(econtext)
+ # Add uid in criterion keys to avoid fetching current object.
+ criterion_dict['query'] = NegatedQuery(Query(uid=obj.getUid()))
+ portal = obj.getPortalObject()
+ result = portal.portal_catalog.countResults(**criterion_dict)[0][0]
+ if result >= 1:
+ mapping['value'] = criterion_dict.get(attribute_name)
+ message_id = 'message_invalid_attribute_unicity'
+ # Generate error
+ if message_id is not None:
+ error_list.append(self._generateError(obj,
+ self._getMessage(message_id), mapping))
+
+ return error_list
+
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