1 # copyright 2003-2012 LOGILAB S.A. (Paris, FRANCE), all rights reserved.

     2 # contact http://www.logilab.fr/ -- mailto:contact@logilab.fr

     3 #

     4 # This file is part of CubicWeb.

     5 #

     6 # CubicWeb is free software: you can redistribute it and/or modify it under the

     7 # terms of the GNU Lesser General Public License as published by the Free

     8 # Software Foundation, either version 2.1 of the License, or (at your option)

     9 # any later version.

    10 #

    11 # CubicWeb is distributed in the hope that it will be useful, but WITHOUT

    12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

    13 # FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more

    14 # details.

    15 #

    16 # You should have received a copy of the GNU Lesser General Public License along

    17 # with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.

    18 """hooks to ensure use_email / primary_email relations consistency"""

    19 

    20 __docformat__ = "restructuredtext en"

    21 

    22 from cubicweb.server import hook

    23 

    24 

    25 class SetUseEmailRelationOp(hook.Operation):

    26     """delay this operation to commit to avoid conflict with a late rql query

    27     already setting the relation

    28     """

    29     rtype = 'use_email'

    30     entity = email = None # make pylint happy

    31 

    32     def condition(self):

    33         """check entity has use_email set for the email address"""

    34         return not any(e for e in self.entity.use_email

    35                        if self.email.eid == e.eid)

    36 

    37     def precommit_event(self):

    38         if self.cnx.deleted_in_transaction(self.entity.eid):

    39             return

    40         if self.cnx.deleted_in_transaction(self.email.eid):

    41             return

    42         if self.condition():

    43             self.cnx.execute(

    44                 'SET X %s Y WHERE X eid %%(x)s, Y eid %%(y)s' % self.rtype,

    45                 {'x': self.entity.eid, 'y': self.email.eid})

    46 

    47 

    48 class SetPrimaryEmailRelationOp(SetUseEmailRelationOp):

    49     rtype = 'primary_email'

    50 

    51     def condition(self):

    52         """check entity has no primary_email set"""

    53         return not self.entity.primary_email

    54 

    55 

    56 class SetPrimaryEmailHook(hook.Hook):

    57     """notify when a bug or story or version has its state modified"""

    58     __regid__ = 'setprimaryemail'

    59     __select__ = hook.Hook.__select__ & hook.match_rtype('use_email')

    60     category = 'email'

    61     events = ('after_add_relation',)

    62 

    63     def __call__(self):

    64         entity = self._cw.entity_from_eid(self.eidfrom)

    65         if 'primary_email' in entity.e_schema.subject_relations():

    66             SetPrimaryEmailRelationOp(self._cw, entity=entity,

    67                                       email=self._cw.entity_from_eid(self.eidto))

    68 

    69 class SetUseEmailHook(hook.Hook):

    70     """notify when a bug or story or version has its state modified"""

    71     __regid__ = 'setprimaryemail'

    72     __select__ = hook.Hook.__select__ & hook.match_rtype('primary_email')

    73     category = 'email'

    74     events = ('after_add_relation',)

    75 

    76     def __call__(self):

    77         entity = self._cw.entity_from_eid(self.eidfrom)

    78         if 'use_email' in entity.e_schema.subject_relations():

    79             SetUseEmailRelationOp(self._cw, entity=entity,

    80                                   email=self._cw.entity_from_eid(self.eidto))