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68 lines
2.5 KiB
Python
68 lines
2.5 KiB
Python
from typing import Iterable, List, TypedDict
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from django.db import transaction
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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
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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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transaction.on_commit(lambda: send_event(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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