def delete_message_backend(request: HttpRequest, user_profile: UserProfile,
message_id: int=REQ(converter=to_non_negative_int,
path_only=True)) -> HttpResponse:
message, ignored_user_message = access_message(user_profile, message_id)
validate_can_delete_message(user_profile, message)
try:
do_delete_messages(user_profile.realm, [message])
except (Message.DoesNotExist, IntegrityError):
raise JsonableError(_("Message already deleted"))
return json_success()
def test_do_delete_messages_multiple(self) -> None:
realm = get_realm("zulip")
cordelia = self.example_user('cordelia')
message_ids = [self.send_stream_message(cordelia, "Denmark", str(i)) for i in range(0, 10)]
messages = Message.objects.filter(id__in=message_ids)
with queries_captured() as queries:
do_delete_messages(realm, messages)
self.assertFalse(Message.objects.filter(id__in=message_ids).exists())
self.assert_length(queries, 37)
archived_messages = ArchivedMessage.objects.filter(id__in=message_ids)
self.assertEqual(archived_messages.count(), len(message_ids))
self.assertEqual(len({message.archive_transaction_id for message in archived_messages}), 1)
def delete_in_topic(request: HttpRequest, user_profile: UserProfile,
stream_id: int=REQ(converter=to_non_negative_int),
topic_name: str=REQ("topic_name")) -> HttpResponse:
(stream, recipient, sub) = access_stream_by_id(user_profile, stream_id)
messages = messages_for_topic(stream.id, topic_name)
if not stream.is_history_public_to_subscribers():
# Don't allow the user to delete messages that they don't have access to.
deletable_message_ids = UserMessage.objects.filter(
user_profile=user_profile, message_id__in=messages).values_list("message_id", flat=True)
messages = [message for message in messages if message.id in
deletable_message_ids]
do_delete_messages(user_profile, messages)
return json_success()
def delete_message_backend(
request: HttpRequest,
user_profile: UserProfile,
message_id: int = REQ(converter=to_non_negative_int, path_only=True),
) -> HttpResponse:
# We lock the `Message` object to ensure that any transactions modifying the `Message` object
# concurrently are serialized properly with deleting the message; this prevents a deadlock
# that would otherwise happen because of the other transaction holding a lock on the `Message`
# row.
message, ignored_user_message = access_message(user_profile, message_id, lock_message=True)
validate_can_delete_message(user_profile, message)
try:
do_delete_messages(user_profile.realm, [message])
except (Message.DoesNotExist, IntegrityError):
raise JsonableError(_("Message already deleted"))
return json_success()
def delete_in_topic(request: HttpRequest, user_profile: UserProfile,
stream_id: int=REQ(converter=to_non_negative_int),
topic_name: str=REQ("topic_name")) -> HttpResponse:
(stream, recipient, sub) = access_stream_by_id(user_profile, stream_id)
messages = messages_for_topic(stream.id, topic_name)
if not stream.is_history_public_to_subscribers():
# Don't allow the user to delete messages that they don't have access to.
deletable_message_ids = UserMessage.objects.filter(
user_profile=user_profile, message_id__in=messages).values_list("message_id", flat=True)
messages = [message for message in messages if message.id in
deletable_message_ids]
do_delete_messages(user_profile, messages)
return json_success()
def delete_in_topic(
request: HttpRequest,
user_profile: UserProfile,
stream_id: int = REQ(converter=to_non_negative_int, path_only=True),
topic_name: str = REQ("topic_name"),
) -> HttpResponse:
(stream, sub) = access_stream_by_id(user_profile, stream_id)
messages = messages_for_topic(assert_is_not_none(stream.recipient_id), topic_name)
if not stream.is_history_public_to_subscribers():
# Don't allow the user to delete messages that they don't have access to.
deletable_message_ids = UserMessage.objects.filter(
user_profile=user_profile, message_id__in=messages
).values_list("message_id", flat=True)
messages = messages.filter(id__in=deletable_message_ids)
messages = messages.select_for_update(of=("self",))
do_delete_messages(user_profile.realm, messages)
return json_success()
