from sqlalchemy import Column, Integer, String, DateTime, ForeignKey from sqlalchemy.orm import relationship from sqlalchemy.sql import func from app.db.base import Base class Category(Base): __tablename__ = "categories" id = Column(Integer, primary_key=True, index=True) name = Column(String, nullable=False) description = Column(String, nullable=True) color = Column(String, nullable=True) owner_id = Column(Integer, ForeignKey("users.id")) created_at = Column(DateTime(timezone=True), server_default=func.now()) updated_at = Column(DateTime(timezone=True), onupdate=func.now()) owner = relationship("User", back_populates="categories") tasks = relationship("Task", back_populates="category")