NDOJ/chat_box/models.py

149 lines
4.5 KiB
Python

from django.db import models
from django.db.models import CASCADE, Q
from django.utils.translation import gettext_lazy as _
from django.utils.functional import cached_property
from judge.models.profile import Profile
from judge.caching import cache_wrapper
__all__ = ["Message", "Room", "UserRoom", "Ignore"]
class Room(models.Model):
user_one = models.ForeignKey(
Profile, related_name="user_one", verbose_name="user 1", on_delete=CASCADE
)
user_two = models.ForeignKey(
Profile, related_name="user_two", verbose_name="user 2", on_delete=CASCADE
)
last_msg_time = models.DateTimeField(
verbose_name=_("last seen"), null=True, db_index=True
)
class Meta:
app_label = "chat_box"
@cache_wrapper(prefix="Rinfo")
def _info(self):
last_msg = self.message_set.filter(hidden=False).first()
return {
"user_ids": [self.user_one.id, self.user_two.id],
"last_message": last_msg.body if last_msg else None,
}
@cached_property
def _cached_info(self):
return self._info()
def contain(self, profile):
return profile.id in self._cached_info["user_ids"]
def other_user(self, profile):
return self.user_one if profile == self.user_two else self.user_two
def other_user_id(self, profile):
user_ids = self._cached_info["user_ids"]
return sum(user_ids) - profile.id
def users(self):
return [self.user_one, self.user_two]
def last_message_body(self):
return self._cached_info["last_message"]
class Message(models.Model):
author = models.ForeignKey(Profile, verbose_name=_("user"), on_delete=CASCADE)
time = models.DateTimeField(
verbose_name=_("posted time"), auto_now_add=True, db_index=True
)
body = models.TextField(verbose_name=_("body of comment"), max_length=8192)
hidden = models.BooleanField(verbose_name="is hidden", default=False)
room = models.ForeignKey(
Room, verbose_name="room id", on_delete=CASCADE, default=None, null=True
)
def save(self, *args, **kwargs):
self.body = self.body.strip()
super(Message, self).save(*args, **kwargs)
class Meta:
verbose_name = "message"
verbose_name_plural = "messages"
ordering = ("-id",)
indexes = [
models.Index(fields=["hidden", "room", "-id"]),
]
app_label = "chat_box"
class UserRoom(models.Model):
user = models.ForeignKey(Profile, verbose_name=_("user"), on_delete=CASCADE)
room = models.ForeignKey(
Room, verbose_name="room id", on_delete=CASCADE, default=None, null=True
)
last_seen = models.DateTimeField(verbose_name=_("last seen"), auto_now_add=True)
unread_count = models.IntegerField(default=0, db_index=True)
class Meta:
unique_together = ("user", "room")
app_label = "chat_box"
class Ignore(models.Model):
user = models.OneToOneField(
Profile,
related_name="ignored_chat_users",
verbose_name=_("user"),
on_delete=CASCADE,
db_index=True,
)
ignored_users = models.ManyToManyField(Profile)
class Meta:
app_label = "chat_box"
@classmethod
def is_ignored(self, current_user, new_friend):
try:
return current_user.ignored_chat_users.ignored_users.filter(
id=new_friend.id
).exists()
except:
return False
@classmethod
def get_ignored_users(self, user):
try:
return self.objects.get(user=user).ignored_users.all()
except:
return Profile.objects.none()
@classmethod
def get_ignored_rooms(self, user):
try:
ignored_users = self.objects.get(user=user).ignored_users.all()
return Room.objects.filter(Q(user_one=user) | Q(user_two=user)).filter(
Q(user_one__in=ignored_users) | Q(user_two__in=ignored_users)
)
except:
return Room.objects.none()
@classmethod
def add_ignore(self, current_user, friend):
ignore, created = self.objects.get_or_create(user=current_user)
ignore.ignored_users.add(friend)
@classmethod
def remove_ignore(self, current_user, friend):
ignore, created = self.objects.get_or_create(user=current_user)
ignore.ignored_users.remove(friend)
@classmethod
def toggle_ignore(self, current_user, friend):
if self.is_ignored(current_user, friend):
self.remove_ignore(current_user, friend)
else:
self.add_ignore(current_user, friend)