from sqlalchemy.orm import Mapped, mapped_column from sqlalchemy import ForeignKey from app.core.database import Base class MessageModel(Base): __tablename__ = "message" id: Mapped[int] = mapped_column(primary_key=True, index=True) sender_id: Mapped[int] = mapped_column(ForeignKey("user.id", ondelete="CASCADE"), index=True) recipient_id: Mapped[int] = mapped_column(ForeignKey("user.id", ondelete="CASCADE"), index=True) content: Mapped[str] = mapped_column()