takahe/activities/services/timeline.py

90 lines
3.0 KiB
Python

from django.db import models
from activities.models import Hashtag, Post, TimelineEvent
from users.models import Identity
class TimelineService:
"""
Timelines and stuff!
"""
def __init__(self, identity: Identity):
self.identity = identity
def home(self) -> models.QuerySet[TimelineEvent]:
return (
TimelineEvent.objects.filter(
identity=self.identity,
type__in=[TimelineEvent.Types.post, TimelineEvent.Types.boost],
)
.select_related(
"subject_post",
"subject_post__author",
"subject_post__author__domain",
"subject_identity",
"subject_identity__domain",
"subject_post_interaction",
"subject_post_interaction__identity",
"subject_post_interaction__identity__domain",
)
.prefetch_related(
"subject_post__attachments",
"subject_post__mentions",
"subject_post__emojis",
)
.order_by("-published")
)
def local(self) -> models.QuerySet[Post]:
return (
Post.objects.local_public()
.not_hidden()
.filter(author__restriction=Identity.Restriction.none)
.select_related("author", "author__domain")
.prefetch_related("attachments", "mentions", "emojis")
.order_by("-published")
)
def federated(self) -> models.QuerySet[Post]:
return (
Post.objects.public()
.not_hidden()
.filter(author__restriction=Identity.Restriction.none)
.select_related("author", "author__domain")
.prefetch_related("attachments", "mentions", "emojis")
.order_by("-published")
)
def hashtag(self, hashtag: str | Hashtag) -> models.QuerySet[Post]:
return (
Post.objects.public()
.not_hidden()
.filter(author__restriction=Identity.Restriction.none)
.tagged_with(hashtag)
.select_related("author", "author__domain")
.prefetch_related("attachments", "mentions")
.order_by("-published")
)
def notifications(self, types: list[str]) -> models.QuerySet[TimelineEvent]:
return (
TimelineEvent.objects.filter(identity=self.identity, type__in=types)
.order_by("-published")
.select_related(
"subject_post",
"subject_post__author",
"subject_post__author__domain",
"subject_identity",
"subject_identity__domain",
"subject_post_interaction",
"subject_post_interaction__identity",
"subject_post_interaction__identity__domain",
)
.prefetch_related(
"subject_post__emojis",
"subject_post__mentions",
"subject_post__attachments",
)
)