[multi-sources] support for moving an entity from an external source (closes #343818)
Original need is to move a user from a ldap source to the system source so
we can delete it from ldap without loosing information into the cubicweb
instance.
We can't wait for the user to be deleted from the ldap since it will be too
late then to get back user attributes, so it has to be a manual operation to
operate before actual deletion. This makes sense for other sources as well.
So the idea is to make the "Any cw_source CWSource" relation editable by
managers, and to watch changes of it. We then check the move is possible
(ie from an external source to the system source) and do necessary stuff
(essentially changing source information and copying data into the system
source).
Remaining pb is that we don't want the moved entity to be reimported later.
To distinguish this state, the trick is to change the associated record in
the 'entities' system table with eid=-eid while leaving other fields
unchanged, and to add a new record with eid=eid, source='system'. External
source will then have consider case where `extid2eid` return a negative eid
as 'this entity was known but has been moved, ignore it'.
Notice no ui is provided yet, it has currently to be done in a c-c shell.
# 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/>.
"""abstract action classes for CubicWeb web client"""
__docformat__ = "restructuredtext en"
_ = unicode
from cubicweb import target
from cubicweb.selectors import (partial_relation_possible, match_search_state,
one_line_rset)
from cubicweb.appobject import AppObject
class Action(AppObject):
"""abstract action. Handle the .search_states attribute to match
request search state.
"""
__registry__ = 'actions'
__select__ = match_search_state('normal')
order = 99
category = 'moreactions'
# actions in category 'moreactions' can specify a sub-menu in which they should be filed
submenu = None
def actual_actions(self):
yield self
def fill_menu(self, box, menu):
"""add action(s) to the given submenu of the given box"""
for action in self.actual_actions():
menu.append(box.action_link(action))
def html_class(self):
if self._cw.selected(self.url()):
return 'selected'
def build_action(self, title, url, **kwargs):
return UnregisteredAction(self._cw, title, url, **kwargs)
def url(self):
"""return the url associated with this action"""
raise NotImplementedError
class UnregisteredAction(Action):
"""non registered action, used to build boxes"""
category = None
id = None
def __init__(self, req, title, url, **kwargs):
Action.__init__(self, req)
self.title = req._(title)
self._url = url
self.__dict__.update(kwargs)
def url(self):
return self._url
class LinkToEntityAction(Action):
"""base class for actions consisting to create a new object with an initial
relation set to an entity.
Additionaly to EntityAction behaviour, this class is parametrized using
.rtype, .role and .target_etype attributes to check if the action apply and
if the logged user has access to it (see
:class:`~cubicweb.selectors.partial_relation_possible` selector
documentation for more information).
"""
__select__ = (match_search_state('normal') & one_line_rset()
& partial_relation_possible(action='add', strict=True))
submenu = 'addrelated'
def url(self):
try:
ttype = self.etype # deprecated in 3.6, already warned by the selector
except AttributeError:
ttype = self.target_etype
entity = self.cw_rset.get_entity(self.cw_row or 0, self.cw_col or 0)
linkto = '%s:%s:%s' % (self.rtype, entity.eid, target(self))
return self._cw.build_url('add/%s' % ttype, __linkto=linkto,
__redirectpath=entity.rest_path(),
__redirectvid=self._cw.form.get('__redirectvid', ''))