[connection] remove ensure_cnx_set context manager uses
It has been deprecated in a previous changeset and is now a no-op.
Related to #2919309.
# copyright 2003-2014 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/>.
""" undoable transaction objects. """
__docformat__ = "restructuredtext en"
_ = unicode
from cubicweb import RepositoryError
ACTION_LABELS = {
'C': _('entity creation'),
'U': _('entity update'),
'D': _('entity deletion'),
'A': _('relation add'),
'R': _('relation removal'),
}
class NoSuchTransaction(RepositoryError):
# Used by CubicWebException
msg = _("there is no transaction #%s")
def __init__(self, txuuid):
super(NoSuchTransaction, self).__init__(txuuid)
self.txuuid = txuuid
class Transaction(object):
"""an undoable transaction"""
def __init__(self, cnx, uuid, time, ueid):
self.cnx = cnx
self.uuid = uuid
self.datetime = time
self.user_eid = ueid
def _execute(self, *args, **kwargs):
"""execute a query using either the req or the cnx"""
return self.cnx.execute(*args, **kwargs)
def __repr__(self):
return '<Transaction %s by %s on %s>' % (
self.uuid, self.user_eid, self.datetime)
def user(self):
"""return the user entity which has done the transaction,
none if not found.
"""
return self.cnx.find('CWUser', eid=self.user_eid).one()
def actions_list(self, public=True):
"""return an ordered list of action effectued during that transaction
if public is true, return only 'public' action, eg not ones triggered
under the cover by hooks.
"""
return self.cnx.transaction_actions(self.uuid, public)
class AbstractAction(object):
def __init__(self, action, public, order):
self.action = action
self.public = public
self.order = order
@property
def label(self):
return ACTION_LABELS[self.action]
@property
def ertype(self):
""" Return the entity or relation type this action is related to"""
raise NotImplementedError(self)
class EntityAction(AbstractAction):
def __init__(self, action, public, order, etype, eid, changes):
super(EntityAction, self).__init__(action, public, order)
self.etype = etype
self.eid = eid
self.changes = changes
def __repr__(self):
return '<%s: %s %s (%s)>' % (
self.label, self.eid, self.changes,
self.public and 'dbapi' or 'hook')
@property
def ertype(self):
""" Return the entity or relation type this action is related to"""
return self.etype
class RelationAction(AbstractAction):
def __init__(self, action, public, order, rtype, eidfrom, eidto):
super(RelationAction, self).__init__(action, public, order)
self.rtype = rtype
self.eid_from = eidfrom
self.eid_to = eidto
def __repr__(self):
return '<%s: %s %s %s (%s)>' % (
self.label, self.eid_from, self.rtype, self.eid_to,
self.public and 'dbapi' or 'hook')
@property
def ertype(self):
""" Return the entity or relation type this action is related to"""
return self.rtype