1 files changed, 12 insertions, 0 deletions

diff --git a/src/mailman_pgp/model/list.py b/src/mailman_pgp/model/list.py
index 66f9af3..f8efdd4 100644
--- a/src/mailman_pgp/model/list.py
+++ b/src/mailman_pgp/model/list.py
@@ -141,3 +141,15 @@ class PGPMailingList(Base):
         """
         return join(config.pgp.keydir_config['list_keydir'],
                     self.list_id + '.asc')
+
+    @staticmethod
+    def for_list(mlist):
+        """
+
+        :param mlist:
+        :return:
+        :rtype: PGPMailingList|None
+        """
+        if mlist is None:
+            return None
+        return PGPMailingList.query().filter_by(list_id=mlist.list_id).first()