[repo, undo] Finish repository-side implementation of the undo feature (closes #893940)
1) Changes API for undo_transaction in order to raise an exception:
the previous API returned a sequence of error, the user of the API
needed to be careful to check explicitly. We change this for it to
raise an UndoException with the list of errors as an attribute.
2) The server-side support for undoing update actions is finished
3) The configuration for `undo-support` is now a simple boolean
Beware of the costs, both in DB space and in number of requests
on the RDBMS backend, once this feture is activated.
4) Adds a txuuid param/attribute to the existing NoSuchTransaction
exception.
# copyright 2003-2010 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/>.
import sys
import os
from os.path import join
from cStringIO import StringIO
from logilab.common.testlib import TestCase, unittest_main
from cubicweb.cwconfig import CubicWebConfiguration
from cubicweb.devtools.testlib import CubicWebTC
from cubicweb.server.migractions import ServerMigrationHelper
CubicWebConfiguration.load_cwctl_plugins() # XXX necessary?
class CubicWebCtlTC(TestCase):
def setUp(self):
self.stream = StringIO()
sys.stdout = self.stream
def tearDown(self):
sys.stdout = sys.__stdout__
def test_list(self):
from cubicweb.cwctl import ListCommand
ListCommand(None).run([])
class CubicWebShellTC(CubicWebTC):
def test_process_script_args_context(self):
repo = self.cnx._repo
mih = ServerMigrationHelper(None, repo=repo, cnx=self.cnx,
interactive=False,
# hack so it don't try to load fs schema
schema=1)
scripts = {'script1.py': list(),
'script2.py': ['-v'],
'script3.py': ['-vd', '-f', 'FILE.TXT'],
}
mih.cmd_process_script(join(self.datadir, 'scripts', 'script1.py'),
funcname=None)
for script, args in scripts.items():
scriptname = os.path.join(self.datadir, 'scripts', script)
self.assert_(os.path.exists(scriptname))
mih.cmd_process_script(scriptname, None, scriptargs=args)
if __name__ == '__main__':
unittest_main()