Stardream
29 lines
1022 B
Python
29 lines
1022 B
Python
import uuid
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from datetime import datetime
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from typing import TYPE_CHECKING
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from sqlalchemy import BigInteger, DateTime, ForeignKey, UniqueConstraint
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from sqlalchemy.dialects.postgresql import UUID
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from .base import Base
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if TYPE_CHECKING:
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from .lottery import Lottery
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from .user import User
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class Participant(Base):
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__tablename__ = "participants"
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__table_args__ = (UniqueConstraint("lottery_id", "user_id"),)
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id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
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lottery_id: Mapped[uuid.UUID] = mapped_column(
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UUID(as_uuid=True), ForeignKey("lotteries.id", ondelete="CASCADE")
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)
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user_id: Mapped[int] = mapped_column(BigInteger, ForeignKey("users.id"))
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joined_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
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lottery: Mapped["Lottery"] = relationship("Lottery", back_populates="participants")
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user: Mapped["User"] = relationship("User")
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