mirror of
https://github.com/zulip/zulip.git
synced 2025-11-04 05:53:43 +00:00
77 lines
3.2 KiB
Python
77 lines
3.2 KiB
Python
from datetime import datetime, timezone
|
|
|
|
from django.db import models
|
|
from django.db.models import CASCADE
|
|
from django.db.models.functions import Lower, Upper
|
|
from typing_extensions import override
|
|
|
|
from zerver.models.constants import MAX_TOPIC_NAME_LENGTH
|
|
from zerver.models.recipients import Recipient
|
|
from zerver.models.streams import Stream
|
|
from zerver.models.users import UserProfile
|
|
|
|
|
|
class UserTopic(models.Model):
|
|
user_profile = models.ForeignKey(UserProfile, on_delete=CASCADE)
|
|
stream = models.ForeignKey(Stream, on_delete=CASCADE)
|
|
recipient = models.ForeignKey(Recipient, on_delete=CASCADE)
|
|
topic_name = models.CharField(max_length=MAX_TOPIC_NAME_LENGTH)
|
|
# The default value for last_updated is a few weeks before tracking
|
|
# of when topics were muted was first introduced. It's designed
|
|
# to be obviously incorrect so that one can tell it's backfilled data.
|
|
last_updated = models.DateTimeField(default=datetime(2020, 1, 1, 0, 0, tzinfo=timezone.utc))
|
|
|
|
class VisibilityPolicy(models.IntegerChoices):
|
|
# A normal muted topic. No notifications and unreads hidden.
|
|
MUTED = 1, "Muted topic"
|
|
|
|
# This topic will behave like an unmuted topic in an unmuted stream even if it
|
|
# belongs to a muted stream.
|
|
UNMUTED = 2, "Unmuted topic in muted stream"
|
|
|
|
# This topic will behave like `UNMUTED`, plus some additional
|
|
# display and/or notifications priority that is TBD and likely to
|
|
# be configurable; see #6027. Not yet implemented.
|
|
FOLLOWED = 3, "Followed topic"
|
|
|
|
# Implicitly, if a UserTopic does not exist, the (user, topic)
|
|
# pair should have normal behavior for that (user, stream) pair.
|
|
|
|
# We use this in our code to represent the condition in the comment above.
|
|
INHERIT = 0, "User's default policy for the stream."
|
|
|
|
visibility_policy = models.SmallIntegerField(
|
|
choices=VisibilityPolicy.choices, default=VisibilityPolicy.MUTED
|
|
)
|
|
|
|
class Meta:
|
|
constraints = [
|
|
models.UniqueConstraint(
|
|
"user_profile",
|
|
"stream",
|
|
Lower("topic_name"),
|
|
name="usertopic_case_insensitive_topic_uniq",
|
|
),
|
|
]
|
|
|
|
indexes = [
|
|
models.Index("stream", Upper("topic_name"), name="zerver_mutedtopic_stream_topic"),
|
|
# This index is designed to optimize queries fetching the
|
|
# set of users who have special policy for a stream,
|
|
# e.g. for the send-message code paths.
|
|
models.Index(
|
|
fields=("stream", "topic_name", "visibility_policy", "user_profile"),
|
|
name="zerver_usertopic_stream_topic_user_visibility_idx",
|
|
),
|
|
# This index is useful for handling API requests fetching the
|
|
# muted topics for a given user or user/stream pair.
|
|
models.Index(
|
|
fields=("user_profile", "visibility_policy", "stream", "topic_name"),
|
|
name="zerver_usertopic_user_visibility_idx",
|
|
),
|
|
]
|
|
|
|
@override
|
|
def __str__(self) -> str:
|
|
return f"({self.user_profile.email}, {self.stream.name}, {self.topic_name}, {self.last_updated})"
|