app/models/setting.py

from sqlalchemy import text,  Text, func
from sqlalchemy.orm import Mapped, mapped_column

from app.models.base import Base


class Setting(Base):
    __tablename__ = "settings"

    key: Mapped[str] = mapped_column(Text, primary_key=True)
    value: Mapped[str] = mapped_column(Text, nullable=False, default="")
    updated_at: Mapped[str] = mapped_column(Text, server_default=text("CURRENT_TIMESTAMP"))