70 lines
2.9 KiB
Python
70 lines
2.9 KiB
Python
from sqlalchemy import event
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from cache.revalidator import revalidation_manager
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from orm.author import Author, AuthorFollower
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from orm.reaction import Reaction
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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 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 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(AuthorFollower, "after_delete", lambda *args: after_follower_handler(*args, is_delete=True))
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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(TopicFollower, "after_delete", lambda *args: after_follower_handler(*args, is_delete=True))
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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(ShoutReactionsFollower, "after_delete", lambda *args: after_follower_handler(*args, is_delete=True))
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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", mark_for_revalidation)
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logger.info("Event handlers registered successfully.")
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