myYouTube/backend/app/models/category.py

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from datetime import datetime
from sqlalchemy import DateTime, Integer, String, func
from sqlalchemy.orm import Mapped, mapped_column
from app.db import Base
class Category(Base):
__tablename__ = "categories"
id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
name: Mapped[str] = mapped_column(String(255), unique=True, nullable=False)
slug: Mapped[str] = mapped_column(String(255), unique=True, nullable=False)
sort_order: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now(), nullable=False)
updated_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), server_default=func.now(), onupdate=func.now(), nullable=False
)