[CWEP002 migration] properly raise exception on (add|drop)_relation_definition for computed relation
Related to #3546717
# copyright 2014 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb 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 Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb. If not, see <http://www.gnu.org/licenses/>.
from yams.buildobjs import EntityType, RelationDefinition, ComputedRelation
class Employee(EntityType):
pass
class employees(RelationDefinition):
subject = 'Company'
object = 'Employee'
class associates(RelationDefinition):
subject = 'Company'
object = 'Employee'
class Company(EntityType):
pass
class Note(EntityType):
pass
class concerns(RelationDefinition):
subject = 'Note'
object = 'Employee'
class notes(ComputedRelation):
rule = 'S employees E, O concerns E'