zulip/zerver/lib/stream_topic.py

40 lines
1.3 KiB
Python

from typing import Dict, Set
from zerver.models import UserTopic
class StreamTopicTarget:
"""
This class is designed to help us move to a
StreamTopic table or something similar. It isolates
places where we are still using `topic_name` as
a key into tables.
"""
def __init__(self, stream_id: int, topic_name: str) -> None:
self.stream_id = stream_id
self.topic_name = topic_name
def user_ids_with_visibility_policy(self, visibility_policy: int) -> Set[int]:
query = UserTopic.objects.filter(
stream_id=self.stream_id,
topic_name__iexact=self.topic_name,
visibility_policy=visibility_policy,
).values(
"user_profile_id",
)
return {row["user_profile_id"] for row in query}
def user_id_to_visibility_policy_dict(self) -> Dict[int, int]:
user_id_to_visibility_policy: Dict[int, int] = {}
query = UserTopic.objects.filter(
stream_id=self.stream_id, topic_name__iexact=self.topic_name
).values(
"visibility_policy",
"user_profile_id",
)
for row in query:
user_id_to_visibility_policy[row["user_profile_id"]] = row["visibility_policy"]
return user_id_to_visibility_policy