413eb37e87
- Implement Todo database model with SQLAlchemy - Set up Alembic for database migrations - Create CRUD operations for Todo items - Implement RESTful API endpoints - Add health check endpoint - Include comprehensive README with usage instructions
35 lines
1011 B
Python
35 lines
1011 B
Python
from pathlib import Path
|
|
from sqlalchemy import create_engine
|
|
from sqlalchemy.orm import sessionmaker, declarative_base
|
|
from sqlalchemy.ext.declarative import DeclarativeMeta
|
|
|
|
# Create database directory
|
|
DB_DIR = Path("/app") / "storage" / "db"
|
|
DB_DIR.mkdir(parents=True, exist_ok=True)
|
|
|
|
# SQLite database URL
|
|
SQLALCHEMY_DATABASE_URL = f"sqlite:///{DB_DIR}/db.sqlite"
|
|
|
|
# Create SQLAlchemy engine with SQLite-specific connection arguments
|
|
engine = create_engine(
|
|
SQLALCHEMY_DATABASE_URL,
|
|
connect_args={"check_same_thread": False}
|
|
)
|
|
|
|
# Create a SessionLocal class
|
|
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
|
|
|
|
# Create a Base class for declarative models
|
|
Base: DeclarativeMeta = declarative_base()
|
|
|
|
def init_db() -> None:
|
|
"""Initialize database by creating all tables."""
|
|
Base.metadata.create_all(bind=engine)
|
|
|
|
def get_db():
|
|
"""Dependency function for getting database session."""
|
|
db = SessionLocal()
|
|
try:
|
|
yield db
|
|
finally:
|
|
db.close() |