1 files changed, 81 insertions, 0 deletions
diff --git a/Mailman/database/listmanager.py b/Mailman/database/listmanager.py
new file mode 100644
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--- /dev/null
+++ b/Mailman/database/listmanager.py
@@ -0,0 +1,81 @@
+# Copyright (C) 2007 by the Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+# USA.
+
+"""SQLAlchemy/Elixir based provider of IListManager."""
+
+import weakref
+
+from elixir import *
+from zope.interface import implements
+
+from Mailman import Errors
+from Mailman.Utils import split_listname, fqdn_listname
+from Mailman.configuration import config
+from Mailman.database.model import MailingList
+from Mailman.interfaces import IListManager
+
+
+
+class ListManager(object):
+    implements(IListManager)
+
+    def __init__(self):
+        self._objectmap = weakref.WeakKeyDictionary()
+
+    def create(self, fqdn_listname):
+        listname, hostname = split_listname(fqdn_listname)
+        mlist = MailingList.get_by(list_name=listname,
+                                   host_name=hostname)
+        if mlist:
+            raise Errors.MMListAlreadyExistsError(fqdn_listname)
+        mlist = MailingList(fqdn_listname)
+        # Wrap the database model object in an application MailList object and
+        # return the latter.  Keep track of the wrapper so we can clean it up
+        # when we're done with it.
+        from Mailman.MailList import MailList
+        wrapper = MailList(mlist)
+        self._objectmap[mlist] = wrapper
+        return wrapper
+
+    def delete(self, mlist):
+        # Delete the wrapped backing data.  XXX It's kind of icky to reach
+        # into the MailList object this way.
+        mlist._data.delete_rosters()
+        mlist._data.delete()
+        mlist._data = None
+
+    def get(self, fqdn_listname):
+        listname, hostname = split_listname(fqdn_listname)
+        mlist = MailingList.get_by(list_name=listname,
+                                   host_name=hostname)
+        if not mlist:
+            raise Errors.MMUnknownListError(fqdn_listname)
+        from Mailman.MailList import MailList
+        wrapper = self._objectmap.setdefault(mlist, MailList(mlist))
+        return wrapper
+
+    @property
+    def mailing_lists(self):
+        # Don't forget, the MailingList objects that this class manages must
+        # be wrapped in a MailList object as expected by this interface.
+        for fqdn_listname in self.names:
+            yield self.get(fqdn_listname)
+
+    @property
+    def names(self):
+        for mlist in MailingList.select():
+            yield fqdn_listname(mlist.list_name, mlist.host_name)