Files
zulip/zerver/lib/stream_subscription.py
Anders Kaseorg 365fe0b3d5 python: Sort imports with isort.
Fixes #2665.

Regenerated by tabbott with `lint --fix` after a rebase and change in
parameters.

Note from tabbott: In a few cases, this converts technical debt in the
form of unsorted imports into different technical debt in the form of
our largest files having very long, ugly import sequences at the
start.  I expect this change will increase pressure for us to split
those files, which isn't a bad thing.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-11 16:45:32 -07:00

100 lines
3.7 KiB
Python

from typing import Any, Dict, List, Tuple
from django.db.models.query import QuerySet
from zerver.models import Recipient, Stream, Subscription, UserProfile
def get_active_subscriptions_for_stream_id(stream_id: int) -> QuerySet:
# TODO: Change return type to QuerySet[Subscription]
return Subscription.objects.filter(
recipient__type=Recipient.STREAM,
recipient__type_id=stream_id,
active=True,
)
def get_active_subscriptions_for_stream_ids(stream_ids: List[int]) -> QuerySet:
# TODO: Change return type to QuerySet[Subscription]
return Subscription.objects.filter(
recipient__type=Recipient.STREAM,
recipient__type_id__in=stream_ids,
active=True,
)
def get_subscribed_stream_ids_for_user(user_profile: UserProfile) -> QuerySet:
return Subscription.objects.filter(
user_profile_id=user_profile,
recipient__type=Recipient.STREAM,
active=True,
).values_list('recipient__type_id', flat=True)
def get_stream_subscriptions_for_user(user_profile: UserProfile) -> QuerySet:
# TODO: Change return type to QuerySet[Subscription]
return Subscription.objects.filter(
user_profile=user_profile,
recipient__type=Recipient.STREAM,
)
def get_stream_subscriptions_for_users(user_profiles: List[UserProfile]) -> QuerySet:
# TODO: Change return type to QuerySet[Subscription]
return Subscription.objects.filter(
user_profile__in=user_profiles,
recipient__type=Recipient.STREAM,
)
def get_bulk_stream_subscriber_info(
user_profiles: List[UserProfile],
stream_dict: Dict[int, Stream]) -> Dict[int, List[Tuple[Subscription, Stream]]]:
stream_ids = stream_dict.keys()
result: Dict[int, List[Tuple[Subscription, Stream]]] = {
user_profile.id: []
for user_profile in user_profiles
}
subs = Subscription.objects.filter(
user_profile__in=user_profiles,
recipient__type=Recipient.STREAM,
recipient__type_id__in=stream_ids,
active=True,
).select_related('user_profile', 'recipient')
for sub in subs:
user_profile_id = sub.user_profile_id
stream_id = sub.recipient.type_id
stream = stream_dict[stream_id]
result[user_profile_id].append((sub, stream))
return result
def num_subscribers_for_stream_id(stream_id: int) -> int:
return get_active_subscriptions_for_stream_id(stream_id).filter(
user_profile__is_active=True,
).count()
def handle_stream_notifications_compatibility(user_profile: UserProfile,
stream_dict: Dict[str, Any],
notification_settings_null: bool) -> None:
# Old versions of the mobile apps don't support `None` as a
# value for the stream-level notifications properties, so we
# have to handle the normally frontend-side defaults for these
# settings here for those older clients.
#
# Note that this situation results in these older mobile apps
# having a subtle bug where changes to the user-level stream
# notification defaults will not properly propagate to the
# mobile app "stream notification settings" UI until the app
# re-registers. This is an acceptable level of
# backwards-compatibility problem in our view.
assert not notification_settings_null
for notification_type in ["desktop_notifications", "audible_notifications",
"push_notifications", "email_notifications"]:
# Values of true/false are supported by older clients.
if stream_dict[notification_type] is not None:
continue
target_attr = "enable_stream_" + notification_type
stream_dict[notification_type] = getattr(user_profile, target_attr)