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3febfff1db
commit
7a8f0a1c21
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@ -10,6 +10,7 @@ from sqlalchemy.sql.expression import (
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select,
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text,
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)
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from sqlalchemy.dialects.postgresql import array_agg
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from orm.author import Author, AuthorFollower
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from orm.reaction import Reaction, ReactionKind
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from orm.shout import Shout, ShoutAuthor, ShoutTopic, ShoutReactionsFollower
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@ -20,23 +21,23 @@ from services.db import local_session
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from utils.logger import root_logger as logger
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from services.schema import query
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from services.search import search_text
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# from services.viewed import ViewedStorage FIXME: use in separate resolver
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def query_shouts():
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"""
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Базовый запрос для получения публикаций, с подзапросами статистики.
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Базовый запрос для получения публикаций с подзапросами статистики, авторов и тем.
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:return: (Запрос для получения публикаций, aliased_reaction)
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:return: Запрос для получения публикаций.
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"""
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# Создаем алиасы для таблиц для избежания конфликтов имен
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aliased_reaction = aliased(Reaction)
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shout_author = aliased(ShoutAuthor)
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shout_topic = aliased(ShoutTopic)
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# Подзапрос для получения статистики реакций
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reaction_stats_subquery = (
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# Основной запрос с подзапросами для получения статистики, авторов и тем
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q = (
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select(
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aliased_reaction.shout.label("shout_id"),
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Shout,
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func.count(case((aliased_reaction.body.is_not(None), 1))).label("comments_stat"),
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func.sum(
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case(
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@ -46,21 +47,38 @@ def query_shouts():
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)
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).label("rating_stat"),
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func.max(aliased_reaction.created_at).label("last_reacted_at"),
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array_agg(
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func.json_build_object(
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"id",
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Author.id,
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"name",
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Author.name,
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"slug",
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Author.slug,
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"pic",
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Author.pic,
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)
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).label("authors"),
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array_agg(
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func.json_build_object(
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"id",
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Topic.id,
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"title",
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Topic.title,
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"body",
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Topic.body,
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"slug",
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Topic.slug,
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)
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).label("topics"),
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)
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.where(aliased_reaction.deleted_at.is_(None))
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.group_by(aliased_reaction.shout)
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.subquery()
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)
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q = (
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select(
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Shout,
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reaction_stats_subquery.c.comments_stat,
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reaction_stats_subquery.c.rating_stat,
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reaction_stats_subquery.c.last_reacted_at,
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)
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.outerjoin(reaction_stats_subquery, reaction_stats_subquery.c.shout_id == Shout.id)
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.outerjoin(aliased_reaction, aliased_reaction.shout == Shout.id)
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.outerjoin(shout_author, shout_author.shout == Shout.id)
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.outerjoin(Author, Author.id == shout_author.author)
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.outerjoin(shout_topic, shout_topic.shout == Shout.id)
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.outerjoin(Topic, Topic.id == shout_topic.topic)
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.where(and_(Shout.published_at.is_not(None), Shout.deleted_at.is_(None)))
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.group_by(Shout.id)
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)
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return q, aliased_reaction
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@ -78,62 +96,15 @@ def get_shouts_with_stats(q, limit, offset=0, author_id=None):
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# Основной запрос для получения публикаций и объединения их с подзапросами
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q = q.limit(limit).offset(offset)
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shout_author = aliased(ShoutAuthor)
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shout_topic = aliased(ShoutTopic)
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# Выполнение запроса и обработка результатов
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# Выполнение запроса и обработка результатов
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with local_session() as session:
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results = session.execute(q, {"author_id": author_id}).all() if author_id else session.execute(q).all()
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# Получаем все ID публикаций
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shout_ids = [row.Shout.id for row in results]
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# Получаем авторов для этих публикаций
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authors = (
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session.query(shout_author.shout, Author.id, Author.name, Author.slug, Author.pic)
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.join(Author, Author.id == shout_author.author)
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.filter(shout_author.shout.in_(shout_ids))
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.all()
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)
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# Получаем темы для этих публикаций
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topics = (
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session.query(shout_topic.shout, Topic.id, Topic.title, Topic.body, Topic.slug)
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.join(Topic, Topic.id == shout_topic.topic)
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.filter(shout_topic.shout.in_(shout_ids))
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.all()
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)
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# Группировка авторов и тем по публикациям
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authors_by_shout = {}
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for author in authors:
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shout_id = author[0] # ID публикации
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if shout_id not in authors_by_shout:
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authors_by_shout[shout_id] = []
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authors_by_shout[shout_id].append({
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"id": author[1],
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"name": author[2],
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"slug": author[3],
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"pic": author[4],
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})
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topics_by_shout = {}
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for topic in topics:
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shout_id = topic[0] # ID публикации
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if shout_id not in topics_by_shout:
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topics_by_shout[shout_id] = []
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topics_by_shout[shout_id].append({
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"id": topic[1],
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"title": topic[2],
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"body": topic[3],
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"slug": topic[4],
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})
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# Формирование списка публикаций с их данными
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shouts = []
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for shout, comments_stat, rating_stat, last_reacted_at in results:
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shout.authors = authors_by_shout.get(shout.id, [])
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shout.topics = topics_by_shout.get(shout.id, [])
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for shout, comments_stat, rating_stat, last_reacted_at, authors, topics in results:
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shout.authors = authors or []
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shout.topics = topics or []
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shout.stat = {
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"viewed": 0, # FIXME: use separate resolver
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"followers": 0, # FIXME: implement followers_stat
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@ -233,24 +204,20 @@ async def get_shout(_, info, slug: str):
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"""
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try:
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with local_session() as session:
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q, aliased_reaction = query_shouts()
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q = query_shouts()
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q = q.filter(Shout.slug == slug)
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q = q.group_by(Shout.id)
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results = session.execute(q).first()
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if results:
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[
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shout,
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commented_stat,
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rating_stat,
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last_reaction_at,
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] = results
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[shout, commented_stat, rating_stat, last_reaction_at, authors, topics] = results
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shout.stat = {
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"commented": commented_stat,
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"rating": rating_stat,
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"last_reacted_at": last_reaction_at,
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}
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shout.authors = authors or []
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shout.topics = topics or []
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for author_caption in (
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session.query(ShoutAuthor)
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@ -296,9 +263,8 @@ async def load_shouts_by(_, _info, options):
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:param options: Опции фильтрации и сортировки.
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:return: Список публикаций, удовлетворяющих критериям.
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"""
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# Базовый запрос
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q, aliased_reaction = query_shouts()
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q = query_shouts()
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# Применение фильтров
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filters = options.get("filters", {})
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@ -333,7 +299,7 @@ async def load_shouts_feed(_, info, options):
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:return: Список публикаций для ленты.
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"""
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with local_session() as session:
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q, aliased_reaction = query_shouts()
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q = query_shouts()
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# Применение фильтров
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filters = options.get("filters", {})
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@ -430,7 +396,6 @@ async def load_shouts_random_top(_, _info, options):
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:param options: Опции фильтрации и сортировки.
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:return: Список случайных публикаций.
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"""
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aliased_reaction = aliased(Reaction)
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subquery = (
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@ -456,8 +421,7 @@ async def load_shouts_random_top(_, _info, options):
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random_limit = options.get("random_limit", 100)
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if random_limit:
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subquery = subquery.limit(random_limit)
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q, aliased_reaction = query_shouts()
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q = q.where(Shout.id.in_(subquery))
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q = query_shouts().where(Shout.id.in_(subquery))
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q = q.order_by(func.random())
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limit = options.get("limit", 10)
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return get_shouts_with_stats(q, limit)
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@ -474,8 +438,7 @@ async def load_shouts_random_topic(_, info, limit: int = 10):
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"""
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[topic] = get_topics_random(None, None, 1)
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if topic:
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q, aliased_reaction = query_shouts()
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q = q.filter(Shout.topics.any(slug=topic.slug))
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q = query_shouts().filter(Shout.topics.any(slug=topic.slug))
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q = q.order_by(desc(Shout.created_at))
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shouts = get_shouts_with_stats(q, limit)
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if shouts:
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@ -497,8 +460,7 @@ async def load_shouts_coauthored(_, info, limit=50, offset=0):
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author_id = info.context.get("author", {}).get("id")
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if not author_id:
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return []
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q, aliased_reaction = query_shouts()
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q = q.filter(Shout.authors.any(id=author_id))
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q = query_shouts().filter(Shout.authors.any(id=author_id))
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return get_shouts_with_stats(q, limit, offset=offset)
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@ -516,7 +478,7 @@ async def load_shouts_discussed(_, info, limit=50, offset=0):
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author_id = info.context.get("author", {}).get("id")
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if not author_id:
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return []
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q, aliased_reaction = query_shouts()
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q = query_shouts()
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q = q.outerjoin(
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Reaction,
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and_(
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