29 lines
1.2 KiB
Python
29 lines
1.2 KiB
Python
"""好友请求模型"""
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from datetime import datetime, timezone
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from sqlalchemy import String, DateTime, ForeignKey
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from app.database import Base
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class FriendRequest(Base):
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__tablename__ = "friend_requests"
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id: Mapped[str] = mapped_column(String(36), primary_key=True)
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from_user_id: Mapped[str] = mapped_column(
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String(36), ForeignKey("users.id", ondelete="CASCADE"), nullable=False
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)
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to_user_id: Mapped[str] = mapped_column(
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String(36), ForeignKey("users.id", ondelete="CASCADE"), nullable=False
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)
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message: Mapped[str | None] = mapped_column(String(200), nullable=True) # 验证消息
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status: Mapped[str] = mapped_column(String(20), default="pending") # pending / accepted / rejected
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created_at: Mapped[datetime] = mapped_column(DateTime, default=lambda: datetime.utcnow())
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responded_at: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)
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# 关系
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from_user = relationship("User", foreign_keys=[from_user_id], back_populates="sent_requests")
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to_user = relationship("User", foreign_keys=[to_user_id], back_populates="received_requests")
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