67 lines
2.9 KiB
Python
67 lines
2.9 KiB
Python
from datetime import datetime
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from enum import Enum
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from sqlalchemy import String, Text, DateTime, ForeignKey, Boolean, UniqueConstraint
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from app.core.database import Base
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class DisputeStatus(str, Enum):
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OPEN = "open"
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RESOLVED_VALID = "valid"
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RESOLVED_INVALID = "invalid"
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class Dispute(Base):
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"""Dispute against a completed assignment's proof"""
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__tablename__ = "disputes"
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id: Mapped[int] = mapped_column(primary_key=True)
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assignment_id: Mapped[int] = mapped_column(ForeignKey("assignments.id", ondelete="CASCADE"), unique=True, index=True)
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raised_by_id: Mapped[int] = mapped_column(ForeignKey("users.id", ondelete="CASCADE"))
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reason: Mapped[str] = mapped_column(Text, nullable=False)
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status: Mapped[str] = mapped_column(String(20), default=DisputeStatus.OPEN.value)
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created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
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resolved_at: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)
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# Relationships
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assignment: Mapped["Assignment"] = relationship("Assignment", back_populates="dispute")
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raised_by: Mapped["User"] = relationship("User", foreign_keys=[raised_by_id])
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comments: Mapped[list["DisputeComment"]] = relationship("DisputeComment", back_populates="dispute", cascade="all, delete-orphan")
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votes: Mapped[list["DisputeVote"]] = relationship("DisputeVote", back_populates="dispute", cascade="all, delete-orphan")
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class DisputeComment(Base):
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"""Comment in a dispute discussion"""
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__tablename__ = "dispute_comments"
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id: Mapped[int] = mapped_column(primary_key=True)
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dispute_id: Mapped[int] = mapped_column(ForeignKey("disputes.id", ondelete="CASCADE"), index=True)
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user_id: Mapped[int] = mapped_column(ForeignKey("users.id", ondelete="CASCADE"))
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text: Mapped[str] = mapped_column(Text, nullable=False)
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created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
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# Relationships
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dispute: Mapped["Dispute"] = relationship("Dispute", back_populates="comments")
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user: Mapped["User"] = relationship("User")
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class DisputeVote(Base):
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"""Vote in a dispute (valid or invalid)"""
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__tablename__ = "dispute_votes"
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id: Mapped[int] = mapped_column(primary_key=True)
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dispute_id: Mapped[int] = mapped_column(ForeignKey("disputes.id", ondelete="CASCADE"), index=True)
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user_id: Mapped[int] = mapped_column(ForeignKey("users.id", ondelete="CASCADE"))
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vote: Mapped[bool] = mapped_column(Boolean, nullable=False) # True = valid, False = invalid
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created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
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# Unique constraint: one vote per user per dispute
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__table_args__ = (
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UniqueConstraint("dispute_id", "user_id", name="uq_dispute_vote_user"),
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)
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# Relationships
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dispute: Mapped["Dispute"] = relationship("Dispute", back_populates="votes")
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user: Mapped["User"] = relationship("User")
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