[server] remove cnxset tracking, it is now unneeded
Indeed, all cnxsets will now be acquired using the following API::
with session.new_cnx() as cnx:
cnx.execute(...)
# do stuff
cnx.commit()
These well-scoped blocks are the only place a cnxset can be acquired.
The old use-case for un-delimited cnxsets (pyro/zmqpickle protocols)
have been removed.
The "mode" of connection objects becomes "write" forever (it will be
removed in a couple of changesets).
Related to #2919309.
# 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/>.
from logilab.common.deprecation import class_renamed, class_moved
from cubicweb.server import hook
SystemHook = class_renamed('SystemHook', hook.Hook)
Hook = class_moved(hook.Hook)