44 lines
970 B
Python
44 lines
970 B
Python
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"""Database connection and session management."""
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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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try:
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from app.config import settings
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except ModuleNotFoundError:
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from backend.app.config import settings
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# Create database engine
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engine = create_engine(
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settings.database_url,
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pool_pre_ping=True,
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pool_size=10,
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max_overflow=20,
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)
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# Create session factory
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SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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# Base class for models
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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 to get database session.
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Yields:
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Database session
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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() -> None:
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"""Initialize database (create tables)."""
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Base.metadata.create_all(bind=engine)
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