from datetime import datetime from sqlalchemy import Boolean, Column, Integer, String, DateTime from app.db.base_class import Base class Todo(Base): id = Column(Integer, primary_key=True, index=True) title = Column(String, index=True) description = Column(String, nullable=True) completed = Column(Boolean, default=False) created_at = Column(DateTime, default=datetime.utcnow) updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)