[pyramid] Add a "pyramid" instance configuration type
In a new module 'cubicweb.pyramid.config' we define a "pyramid" instance
configuration type. The noticeable feature of this configuration is that it
manages a 'development.ini' file that gets installed in application home
(along with `.conf` file). This file is templated and includes generated
values for secrets of session and authtk tokens.
This means that we can just call:
pserve etc/cubicweb.d/<appname>/development.ini
or
gunicorn --paste etc/cubicweb.d/<appname>/development.ini -b :8080
just after instance creation to get a pyramid instance running without having
to hack around a 'pyramid.ini' file.
This patch drops 'development.ini' from skeleton and moves it in
cubicweb/pyramid so that it gets installed at instance creation which is more
appropriate than in cube creation.
The new configuration class sets "cubicweb.bwcompat" setting to false so it is
not intended to replace the "all-in-one" configuration type (which would
require a bit more work). This configuration is close to the the 'repository'
configuration type with just a couple of options from WebConfiguration that
are needed for Pyramid (anonymous user/password plus some miscellaneous
options that I'm not so sure are really needed). Note, in particular, that we
do not pull CORS settings to be injected as a WSGI middleware like in
wsgi_application_from_cwconfig() since I believe this should be left as an
end-user responsibility and since this can be defined in a standard way in
paste configuration. This configuration inherits from ServerConfiguration but
registers the same appobjects as WebConfiguration.
In cubicweb.web.request._CubicWebRequestBase, we guard against access to
"uiprops" and "datadir_url" of the config because this new "pyramid" config
does not have these (this does not make sense without bwcompat mode). At some
point, we should either avoid using `cw_request`'s pyramid request attribute
or make cubicweb's web request really independant of existing implementation
and drop these assumptions.
# 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. """
from cubicweb import _
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