45 lines
1.3 KiB
Python
45 lines
1.3 KiB
Python
# app/database.py
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from sqlalchemy import create_engine
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy.orm import sessionmaker, Session
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from typing import Generator
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from app.config import settings
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import logging
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logger = logging.getLogger(__name__)
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# Создаем синхронный движок (для простоты, без asyncio)
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engine = create_engine(
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settings.DATABASE_URL,
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echo=settings.DEBUG,
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pool_pre_ping=settings.DB_POOL_PRE_PING,
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pool_size=settings.DB_POOL_SIZE,
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max_overflow=settings.DB_MAX_OVERFLOW,
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pool_timeout=settings.DB_POOL_TIMEOUT,
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)
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# Создаем фабрику сессий
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SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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# Базовый класс для моделей
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Base = declarative_base()
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def get_db() -> Generator[Session, None, None]:
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"""
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Dependency для получения сессии базы данных
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"""
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db = SessionLocal()
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try:
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yield db
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finally:
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db.close()
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def init_db():
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"""Инициализация базы данных (создание таблиц)"""
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try:
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Base.metadata.create_all(bind=engine)
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logger.info("Database tables created successfully")
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except Exception as e:
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logger.error(f"Failed to create database tables: {e}")
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raise |