from sqlalchemy import Column, Integer, String, Float from app.models.base import Base class Hotword(Base): __tablename__ = "biz_hotword" id = Column(Integer, primary_key=True, index=True) word = Column(String(255), nullable=False, comment="热词") pinyin = Column(String(255), nullable=True, comment="拼音") weight = Column(Float, default=1.0, comment="权重") scope = Column(String(50), default="global", comment="作用域: global/user/meeting")