Avoid to update inlined relation column to NULL when deleting entities
When deleting entities, cubicweb run a rql DELETE on all relations to trigger hooks.
For an inlined relation this also mean set the column to NULL. This operation
may fail if there's additional constraints on the column.
Also this is a weird and useless behavior since deleting the entity row will by
definition delete the relation.
We still doesn't handle the case where both subject and object are going to be
deleted because rows need to be deleted in a particular order that cubicweb
doesn't handle.
Add a test checking UPDATE does not occur but hooks are correctly called.
Closes #17236690
# copyright 2017 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/>.
"""Configuration for CubicWeb instances on top of a Pyramid application"""
from os import path
import random
import string
from logilab.common.configuration import merge_options
from cubicweb.cwconfig import CONFIGURATIONS
from cubicweb.server.serverconfig import ServerConfiguration
from cubicweb.toolsutils import fill_templated_file
from cubicweb.web.webconfig import BaseWebConfiguration
def get_random_secret_key():
"""Return 50-character secret string"""
chars = string.ascii_letters + string.digits
secure_random = random.SystemRandom()
return "".join([secure_random.choice(chars) for i in range(50)])
class CubicWebPyramidConfiguration(BaseWebConfiguration, ServerConfiguration):
"""Pyramid application with a CubicWeb repository"""
name = 'pyramid'
cubicweb_appobject_path = (BaseWebConfiguration.cubicweb_appobject_path
| ServerConfiguration.cubicweb_appobject_path)
cube_appobject_path = (BaseWebConfiguration.cube_appobject_path
| ServerConfiguration.cube_appobject_path)
options = merge_options(ServerConfiguration.options
+ BaseWebConfiguration.options)
def init_log(self, *args, **kwargs):
"""Rely on logging configuration in Pyramid's .ini file, do nothing
here.
"""
def write_development_ini(self, cubes):
"""Write a 'development.ini' file into apphome."""
template_fpath = path.join(path.dirname(__file__), 'development.ini.tmpl')
target_fpath = path.join(self.apphome, 'development.ini')
context = {
'instance': self.appid,
'cubename': cubes[0],
'session-secret': get_random_secret_key(),
'auth-authtkt-persistent-secret': get_random_secret_key(),
'auth-authtkt-session-secret': get_random_secret_key(),
}
fill_templated_file(template_fpath, target_fpath, context)
CONFIGURATIONS.append(CubicWebPyramidConfiguration)