hooks/email.py
author Julien Cristau <julien.cristau@logilab.fr>
Wed, 06 Jan 2016 11:47:08 +0100
changeset 11080 245f440b814a
parent 10187 0df931eb08de
permissions -rw-r--r--
[devtools] fix get_bounds Say an attribute has two IntervalBoundConstraints, one with minvalue=0 and the other with maxvalue=10 (not literally, or that could be a single constraint, but e.g. with references to other attributes). We don't want to override the minvalue of the former with None just because the latter happens last in the constraints list. This doesn't fix the case where two constraints both have a min or a max value. Meh.

# copyright 2003-2012 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


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.cnx.deleted_in_transaction(self.entity.eid):
            return
        if self.cnx.deleted_in_transaction(self.email.eid):
            return
        if self.condition():
            self.cnx.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))