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-rw-r--r--src/mailman/interfaces/mailinglist.py18
1 files changed, 17 insertions, 1 deletions
diff --git a/src/mailman/interfaces/mailinglist.py b/src/mailman/interfaces/mailinglist.py
index d8c0ebb26..23d21cd34 100644
--- a/src/mailman/interfaces/mailinglist.py
+++ b/src/mailman/interfaces/mailinglist.py
@@ -182,7 +182,7 @@ class IMailingList(Interface):
def confirm_address(cookie=''):
"""The address used for various forms of email confirmation."""
- # Rosters.
+ # Rosters and subscriptions.
owners = Attribute(
"""The IUser owners of this mailing list.
@@ -232,6 +232,22 @@ class IMailingList(Interface):
:rtype: Roster
"""
+ def subscribe(subscriber, role):
+ """Subscribe the given address or user to the mailing list.
+
+ :param subscriber: The address or user to subscribe to the mailing
+ list. The user's preferred address receives deliveries, if she
+ has one, otherwise no address for the user appears in the rosters.
+ :type subscriber: `IUser` or `IAddress`
+ :param role: The role being subscribed to (e.g. a member, owner, or
+ moderator of a mailing list.
+ :type role: `MemberRole`
+ :return: The member object representing the subscription.
+ :rtype: `IMember`
+ :raises AlreadySubscribedError: If the address or user is already
+ subscribed to the mailing list with the given role.
+ """
+
# Posting history.
last_post_at = Attribute(