+
−"""hooks to ensure use_email / primary_email relations consistency
+
−
+
−:organization: Logilab
+
−:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
+
−:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
+
−:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
+
−"""
+
−__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.unsafe_execute(
+
−                'SET X %s Y WHERE X eid %%(x)s, Y eid %%(y)s' % self.rtype,
+
−                {'x': self.entity.eid, 'y': self.email.eid}, 'x')
+
−
+
−
+
−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))