def do_remove_streams_from_default_stream_group(realm: Realm,
group: DefaultStreamGroup,
streams: List[Stream]) -> None:
for stream in streams:
if stream not in group.streams.all():
raise JsonableError(
_(
"Stream '{stream_name}' is not present in default stream group '{group_name}'",
).format(stream_name=stream.name, group_name=group.name))
group.streams.remove(stream)
group.save()
notify_default_stream_groups(realm)
def do_change_default_stream_group_name(
realm: Realm, group: DefaultStreamGroup, new_group_name: str
) -> None:
if group.name == new_group_name:
raise JsonableError(
_("This default stream group is already named '{}'").format(new_group_name)
)
if DefaultStreamGroup.objects.filter(name=new_group_name, realm=realm).exists():
raise JsonableError(_("Default stream group '{}' already exists").format(new_group_name))
group.name = new_group_name
group.save()
notify_default_stream_groups(realm)
def do_add_streams_to_default_stream_group(realm: Realm,
group: DefaultStreamGroup,
streams: List[Stream]) -> None:
default_streams = get_default_streams_for_realm(realm.id)
for stream in streams:
if stream in default_streams:
raise JsonableError(
_(
"'{stream_name}' is a default stream and cannot be added to '{group_name}'",
).format(stream_name=stream.name, group_name=group.name))
if stream in group.streams.all():
raise JsonableError(
_(
"Stream '{stream_name}' is already present in default stream group '{group_name}'",
).format(stream_name=stream.name, group_name=group.name))
group.streams.add(stream)
group.save()
notify_default_stream_groups(realm)
def do_remove_default_stream_group(realm: Realm, group: DefaultStreamGroup) -> None:
group.delete()
notify_default_stream_groups(realm)
def do_change_default_stream_group_description(
realm: Realm, group: DefaultStreamGroup, new_description: str
) -> None:
group.description = new_description
group.save()
notify_default_stream_groups(realm)