mailman/database/listmanager.py

   1 # Copyright (C) 2007-2008 by the Free Software Foundation, Inc.
   2 #
   3 # This program is free software; you can redistribute it and/or
   4 # modify it under the terms of the GNU General Public License
   5 # as published by the Free Software Foundation; either version 2
   6 # of the License, or (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program; if not, write to the Free Software
  15 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  16 # USA.
  17
  18 """A mailing list manager."""
  19
  20 import datetime
  21
  22 from zope.interface import implements
  23
  24 from mailman import Errors
  25 from mailman.Utils import split_listname, fqdn_listname
  26 from mailman.configuration import config
  27 from mailman.database.mailinglist import MailingList
  28 from mailman.interfaces import IListManager, ListAlreadyExistsError
  29
  30
  31 \f
  32 class ListManager(object):
  33     """An implementation of the `IListManager` interface."""
  34
  35     implements(IListManager)
  36
  37     def create(self, fqdn_listname):
  38         """See `IListManager`."""
  39         listname, hostname = split_listname(fqdn_listname)
  40         mlist = config.db.store.find(
  41             MailingList,
  42             MailingList.list_name == listname,
  43             MailingList.host_name == hostname).one()
  44         if mlist:
  45             raise ListAlreadyExistsError(fqdn_listname)
  46         mlist = MailingList(fqdn_listname)
  47         mlist.created_at = datetime.datetime.now()
  48         config.db.store.add(mlist)
  49         return mlist
  50
  51     def get(self, fqdn_listname):
  52         """See `IListManager`."""
  53         listname, hostname = split_listname(fqdn_listname)
  54         mlist = config.db.store.find(MailingList,
  55                                      list_name=listname,
  56                                      host_name=hostname).one()
  57         if mlist is not None:
  58             # XXX Fixme
  59             mlist._restore()
  60         return mlist
  61
  62     def delete(self, mlist):
  63         """See `IListManager`."""
  64         config.db.store.remove(mlist)
  65
  66     @property
  67     def mailing_lists(self):
  68         """See `IListManager`."""
  69         for fqdn_listname in self.names:
  70             yield self.get(fqdn_listname)
  71
  72     @property
  73     def names(self):
  74         """See `IListManager`."""
  75         for mlist in config.db.store.find(MailingList):
  76             yield fqdn_listname(mlist.list_name, mlist.host_name)