25 lines
934 B
Python
25 lines
934 B
Python
"""消息表情回应模型"""
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from datetime import datetime
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from sqlalchemy import String, DateTime, ForeignKey, UniqueConstraint
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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 MessageReaction(Base):
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__tablename__ = "message_reactions"
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__table_args__ = (
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UniqueConstraint("message_id", "user_id", "emoji", name="uq_msg_reaction"),
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)
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id: Mapped[str] = mapped_column(String(36), primary_key=True)
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message_id: Mapped[str] = mapped_column(String(36), ForeignKey("messages.id", ondelete="CASCADE"))
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user_id: Mapped[str] = mapped_column(String(36), ForeignKey("users.id", ondelete="CASCADE"))
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emoji: Mapped[str] = mapped_column(String(10), nullable=False)
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created_at: Mapped[datetime] = mapped_column(DateTime, default=lambda: datetime.utcnow())
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message = relationship("Message")
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user = relationship("User", foreign_keys=[user_id])
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