"""系统配置模型 - 键值对存储"""
from sqlalchemy import Column, Integer, String, Text, DateTime
from sqlalchemy.sql import func
from database import Base


class SystemConfig(Base):
    """系统配置表 - 存储OSS等系统级配置"""
    __tablename__ = "system_configs"

    id = Column(Integer, primary_key=True, index=True)
    key = Column(String(100), unique=True, index=True, nullable=False)
    value = Column(Text, default="")
    description = Column(String(200), default="")
    updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())