148 lines
5.6 KiB
Python
148 lines
5.6 KiB
Python
from sqlalchemy import event
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from auth.orm import Author, AuthorFollower
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from cache.revalidator import revalidation_manager
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from orm.reaction import Reaction, ReactionKind
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from orm.shout import Shout, ShoutAuthor, ShoutReactionsFollower
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from orm.topic import Topic, TopicFollower
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from services.db import local_session
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from utils.logger import root_logger as logger
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def mark_for_revalidation(entity, *args):
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"""Отметка сущности для ревалидации."""
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entity_type = (
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"authors"
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if isinstance(entity, Author)
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else "topics"
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if isinstance(entity, Topic)
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else "reactions"
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if isinstance(entity, Reaction)
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else "shouts"
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if isinstance(entity, Shout)
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else None
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)
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if entity_type:
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revalidation_manager.mark_for_revalidation(entity.id, entity_type)
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def after_follower_handler(mapper, connection, target, is_delete=False):
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"""Обработчик добавления, обновления или удаления подписки."""
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entity_type = None
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if isinstance(target, AuthorFollower):
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entity_type = "authors"
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elif isinstance(target, TopicFollower):
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entity_type = "topics"
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elif isinstance(target, ShoutReactionsFollower):
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entity_type = "shouts"
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if entity_type:
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revalidation_manager.mark_for_revalidation(
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target.author if entity_type == "authors" else target.topic, entity_type
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)
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if not is_delete:
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revalidation_manager.mark_for_revalidation(target.follower, "authors")
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def after_shout_handler(mapper, connection, target):
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"""Обработчик изменения статуса публикации"""
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if not isinstance(target, Shout):
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return
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# Проверяем изменение статуса публикации
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# was_published = target.published_at is not None and target.deleted_at is None
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# Всегда обновляем счетчики для авторов и тем при любом изменении поста
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for author in target.authors:
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revalidation_manager.mark_for_revalidation(author.id, "authors")
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for topic in target.topics:
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revalidation_manager.mark_for_revalidation(topic.id, "topics")
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# Обновляем сам пост
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revalidation_manager.mark_for_revalidation(target.id, "shouts")
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def after_reaction_handler(mapper, connection, target):
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"""Обработчик для комментариев"""
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if not isinstance(target, Reaction):
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return
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# Проверяем что это комментарий
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is_comment = target.kind == ReactionKind.COMMENT.value
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# Получаем связанный пост
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shout_id = target.shout if isinstance(target.shout, int) else target.shout.id
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if not shout_id:
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return
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# Обновляем счетчики для автора комментария
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if target.created_by:
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revalidation_manager.mark_for_revalidation(target.created_by, "authors")
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# Обновляем счетчики для поста
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revalidation_manager.mark_for_revalidation(shout_id, "shouts")
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if is_comment:
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# Для комментариев обновляем также авторов и темы
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with local_session() as session:
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shout = (
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session.query(Shout)
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.filter(
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Shout.id == shout_id,
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Shout.published_at.is_not(None),
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Shout.deleted_at.is_(None),
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)
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.first()
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)
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if shout:
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for author in shout.authors:
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revalidation_manager.mark_for_revalidation(author.id, "authors")
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for topic in shout.topics:
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revalidation_manager.mark_for_revalidation(topic.id, "topics")
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def events_register():
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"""Регистрация обработчиков событий для всех сущностей."""
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event.listen(ShoutAuthor, "after_insert", mark_for_revalidation)
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event.listen(ShoutAuthor, "after_update", mark_for_revalidation)
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event.listen(ShoutAuthor, "after_delete", mark_for_revalidation)
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event.listen(AuthorFollower, "after_insert", after_follower_handler)
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event.listen(AuthorFollower, "after_update", after_follower_handler)
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event.listen(
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AuthorFollower,
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"after_delete",
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lambda *args: after_follower_handler(*args, is_delete=True),
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)
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event.listen(TopicFollower, "after_insert", after_follower_handler)
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event.listen(TopicFollower, "after_update", after_follower_handler)
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event.listen(
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TopicFollower,
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"after_delete",
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lambda *args: after_follower_handler(*args, is_delete=True),
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)
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event.listen(ShoutReactionsFollower, "after_insert", after_follower_handler)
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event.listen(ShoutReactionsFollower, "after_update", after_follower_handler)
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event.listen(
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ShoutReactionsFollower,
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"after_delete",
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lambda *args: after_follower_handler(*args, is_delete=True),
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)
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event.listen(Reaction, "after_update", mark_for_revalidation)
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event.listen(Author, "after_update", mark_for_revalidation)
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event.listen(Topic, "after_update", mark_for_revalidation)
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event.listen(Shout, "after_update", after_shout_handler)
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event.listen(Shout, "after_delete", after_shout_handler)
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event.listen(Reaction, "after_insert", after_reaction_handler)
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event.listen(Reaction, "after_update", after_reaction_handler)
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event.listen(Reaction, "after_delete", after_reaction_handler)
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logger.info("Event handlers registered successfully.")
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