Пиздец очередной
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102
app/services/postgres_rep.py
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102
app/services/postgres_rep.py
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from sqlalchemy.future import select
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from sqlalchemy.exc import SQLAlchemyError
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from sqlalchemy import desc
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from instance.model import User, Subscription, Transaction
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class PostgresRepository:
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def __init__(self, session_generator, logger):
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self.session_generator = session_generator
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self.logger = logger
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async def create_user(self, telegram_id: int, username: str):
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"""
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Создаёт нового пользователя в PostgreSQL.
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"""
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async for session in self.session_generator():
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try:
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new_user = User(telegram_id=telegram_id, username=username)
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session.add(new_user)
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await session.commit()
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return new_user
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except SQLAlchemyError as e:
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self.logger.error(f"Ошибка при создании пользователя {telegram_id}: {e}")
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await session.rollback()
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return None
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async def get_user_by_telegram_id(self, telegram_id: int):
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"""
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Возвращает пользователя по Telegram ID.
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"""
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async for session in self.session_generator():
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try:
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result = await session.execute(select(User).where(User.telegram_id == telegram_id))
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return result.scalars().first()
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except SQLAlchemyError as e:
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self.logger.error(f"Ошибка при получении пользователя {telegram_id}: {e}")
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return None
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async def add_transaction(self, user_id: int, amount: float):
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"""
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Добавляет транзакцию для пользователя.
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"""
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async for session in self.session_generator():
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try:
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transaction = Transaction(user_id=user_id, amount=amount)
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session.add(transaction)
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await session.commit()
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except SQLAlchemyError as e:
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self.logger.error(f"Ошибка добавления транзакции для пользователя {user_id}: {e}")
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await session.rollback()
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async def update_balance(self, telegram_id: int, amount: float):
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"""
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Обновляет баланс пользователя.
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"""
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async for session in self.session_generator():
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try:
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result = await session.execute(select(User).where(User.telegram_id == telegram_id))
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user = result.scalars().first()
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if user:
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user.balance += amount
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await session.commit()
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return user
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else:
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self.logger.warning(f"Пользователь с Telegram ID {telegram_id} не найден.")
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return None
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except SQLAlchemyError as e:
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self.logger.error(f"Ошибка при обновлении баланса: {e}")
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await session.rollback()
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return None
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async def last_subscription(self, user_id: int):
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"""
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Возвращает последние подписки пользователя.
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"""
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async for session in self.session_generator():
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try:
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result = await session.execute(
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select(Subscription)
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.where(Subscription.user_id == user_id)
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.order_by(desc(Subscription.created_at))
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)
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return result.scalars().all()
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except SQLAlchemyError as e:
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self.logger.error(f"Ошибка при получении последней подписки пользователя {user_id}: {e}")
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return None
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async def last_transaction(self, user_id: int):
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"""
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Возвращает последние транзакции пользователя.
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"""
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async for session in self.session_generator():
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try:
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result = await session.execute(
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select(Transaction)
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.where(Transaction.user_id == user_id)
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.order_by(desc(Transaction.created_at))
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)
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return result.scalars().all()
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except SQLAlchemyError as e:
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self.logger.error(f"Ошибка при получении транзакций пользователя {user_id}: {e}")
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return None
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