90 lines
2.9 KiB
Python
90 lines
2.9 KiB
Python
from typing import cast
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from django.db import models
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from django.template.defaultfilters import linebreaks_filter
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from core.html import strip_html
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from users.models import Follow, FollowStates, Identity
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class IdentityService:
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"""
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High-level helper methods for doing things to identities
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"""
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def __init__(self, identity: Identity):
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self.identity = identity
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def following(self) -> models.QuerySet[Identity]:
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return (
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Identity.objects.filter(inbound_follows__source=self.identity)
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.not_deleted()
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.order_by("username")
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.select_related("domain")
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)
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def followers(self) -> models.QuerySet[Identity]:
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return (
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Identity.objects.filter(outbound_follows__target=self.identity)
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.not_deleted()
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.order_by("username")
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.select_related("domain")
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)
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def follow_from(self, from_identity: Identity) -> Follow:
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"""
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Follows a user (or does nothing if already followed).
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Returns the follow.
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"""
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existing_follow = Follow.maybe_get(from_identity, self.identity)
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if not existing_follow:
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Follow.create_local(from_identity, self.identity)
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elif existing_follow.state not in FollowStates.group_active():
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existing_follow.transition_perform(FollowStates.unrequested)
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return cast(Follow, existing_follow)
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def unfollow_from(self, from_identity: Identity):
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"""
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Unfollows a user (or does nothing if not followed).
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"""
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existing_follow = Follow.maybe_get(from_identity, self.identity)
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if existing_follow:
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existing_follow.transition_perform(FollowStates.undone)
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def mastodon_json_relationship(self, from_identity: Identity):
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"""
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Returns a Relationship object for the from_identity's relationship
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with this identity.
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"""
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return {
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"id": self.identity.pk,
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"following": self.identity.inbound_follows.filter(
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source=from_identity,
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state__in=FollowStates.group_active(),
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).exists(),
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"followed_by": self.identity.outbound_follows.filter(
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target=from_identity,
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state__in=FollowStates.group_active(),
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).exists(),
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"showing_reblogs": True,
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"notifying": False,
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"blocking": False,
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"blocked_by": False,
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"muting": False,
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"muting_notifications": False,
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"requested": False,
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"domain_blocking": False,
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"endorsed": False,
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"note": "",
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}
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def set_summary(self, summary: str):
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"""
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Safely sets a summary and turns linebreaks into HTML
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"""
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if summary:
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self.identity.summary = linebreaks_filter(strip_html(summary))
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else:
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self.identity.summary = None
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self.identity.save()
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