hooks/email.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Mon, 10 Sep 2012 14:00:09 +0200
changeset 8537 e30d0a7f0087
parent 5426 0d4853a6e5ee
child 8543 b7c9443d8625
permissions -rw-r--r--
[config] turn internal configuration methods building appobjects search path into normal method rather than class method as this is useless and make path filters difficult to override (we had to override the class attribute, as instance attributes were not seen). Also rename related methods for consistency with current vocabulary

# 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/>.
"""hooks to ensure use_email / primary_email relations consistency

"""
__docformat__ = "restructuredtext en"

from cubicweb.server import hook

from logilab.common.compat import any


class SetUseEmailRelationOp(hook.Operation):
    """delay this operation to commit to avoid conflict with a late rql query
    already setting the relation
    """
    rtype = 'use_email'
    entity = email = None # make pylint happy

    def condition(self):
        """check entity has use_email set for the email address"""
        return not any(e for e in self.entity.use_email
                       if self.email.eid == e.eid)

    def precommit_event(self):
        if self.condition():
            self.session.execute(
                'SET X %s Y WHERE X eid %%(x)s, Y eid %%(y)s' % self.rtype,
                {'x': self.entity.eid, 'y': self.email.eid})


class SetPrimaryEmailRelationOp(SetUseEmailRelationOp):
    rtype = 'primary_email'

    def condition(self):
        """check entity has no primary_email set"""
        return not self.entity.primary_email


class SetPrimaryEmailHook(hook.Hook):
    """notify when a bug or story or version has its state modified"""
    __regid__ = 'setprimaryemail'
    __select__ = hook.Hook.__select__ & hook.match_rtype('use_email')
    category = 'email'
    events = ('after_add_relation',)

    def __call__(self):
        entity = self._cw.entity_from_eid(self.eidfrom)
        if 'primary_email' in entity.e_schema.subject_relations():
            SetPrimaryEmailRelationOp(self._cw, entity=entity,
                                      email=self._cw.entity_from_eid(self.eidto))

class SetUseEmailHook(hook.Hook):
    """notify when a bug or story or version has its state modified"""
    __regid__ = 'setprimaryemail'
    __select__ = hook.Hook.__select__ & hook.match_rtype('primary_email')
    category = 'email'
    events = ('after_add_relation',)

    def __call__(self):
        entity = self._cw.entity_from_eid(self.eidfrom)
        if 'use_email' in entity.e_schema.subject_relations():
            SetUseEmailRelationOp(self._cw, entity=entity,
                                  email=self._cw.entity_from_eid(self.eidto))