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a03ea9dc08
django-stubs 4.2.1 gives transaction.on_commit a more accurate type
annotation, but this exposed that mypy can’t handle the lambda default
parameters that we use to recapture loop variables such as
for stream_id in public_stream_ids:
peer_user_ids = …
event = …
transaction.on_commit(
lambda event=event, peer_user_ids=peer_user_ids: send_event(
realm, event, peer_user_ids
)
)
https://github.com/python/mypy/issues/15459
A workaround that mypy accepts is
transaction.on_commit(
(
lambda event, peer_user_ids: lambda: send_event(
realm, event, peer_user_ids
)
)(event, peer_user_ids)
)
But that’s kind of ugly and potentially error-prone, so let’s make a
helper function for this very common pattern.
send_event_on_commit(realm, event, peer_user_ids)
Signed-off-by: Anders Kaseorg <anders@zulip.com>
(cherry picked from commit 7657cb4a0f)
66 lines
2.4 KiB
Python
66 lines
2.4 KiB
Python
from typing import Iterable, List, TypedDict
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from zerver.lib import retention
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from zerver.lib.retention import move_messages_to_archive
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from zerver.lib.stream_subscription import get_active_subscriptions_for_stream_id
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from zerver.models import Message, Realm, UserMessage, UserProfile
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from zerver.tornado.django_api import send_event_on_commit
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class DeleteMessagesEvent(TypedDict, total=False):
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type: str
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message_ids: List[int]
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message_type: str
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topic: str
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stream_id: int
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def do_delete_messages(realm: Realm, messages: Iterable[Message]) -> None:
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# messages in delete_message event belong to the same topic
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# or is a single private message, as any other behaviour is not possible with
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# the current callers to this method.
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messages = list(messages)
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message_ids = [message.id for message in messages]
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if not message_ids:
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return
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event: DeleteMessagesEvent = {
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"type": "delete_message",
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"message_ids": message_ids,
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}
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sample_message = messages[0]
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message_type = "stream"
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users_to_notify = []
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if not sample_message.is_stream_message():
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assert len(messages) == 1
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message_type = "private"
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ums = UserMessage.objects.filter(message_id__in=message_ids)
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users_to_notify = [um.user_profile_id for um in ums]
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archiving_chunk_size = retention.MESSAGE_BATCH_SIZE
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if message_type == "stream":
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stream_id = sample_message.recipient.type_id
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event["stream_id"] = stream_id
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event["topic"] = sample_message.topic_name()
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subscriptions = get_active_subscriptions_for_stream_id(
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stream_id, include_deactivated_users=False
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)
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# We exclude long-term idle users, since they by definition have no active clients.
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subscriptions = subscriptions.exclude(user_profile__long_term_idle=True)
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users_to_notify = list(subscriptions.values_list("user_profile_id", flat=True))
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archiving_chunk_size = retention.STREAM_MESSAGE_BATCH_SIZE
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move_messages_to_archive(message_ids, realm=realm, chunk_size=archiving_chunk_size)
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event["message_type"] = message_type
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send_event_on_commit(realm, event, users_to_notify)
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def do_delete_messages_by_sender(user: UserProfile) -> None:
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message_ids = list(
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Message.objects.filter(sender=user).values_list("id", flat=True).order_by("id")
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)
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if message_ids:
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move_messages_to_archive(message_ids, chunk_size=retention.STREAM_MESSAGE_BATCH_SIZE)
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