Cheng Zhou
51 lines
1.9 KiB
Python
51 lines
1.9 KiB
Python
import enum
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import uuid
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from datetime import datetime
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from sqlalchemy import DateTime, Enum, ForeignKey, String, func
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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 app.db.base_class import Base
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class DistributionTargetType(str, enum.Enum):
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SITE = "SITE"
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ROLE = "ROLE"
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USER = "USER"
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class DistributionStatus(str, enum.Enum):
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ACTIVE = "ACTIVE"
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CLOSED = "CLOSED"
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class Distribution(Base):
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__tablename__ = "distributions"
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id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
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document_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("documents.id"), nullable=False)
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version_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("document_versions.id"), nullable=False)
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target_type: Mapped[DistributionTargetType] = mapped_column(
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Enum(DistributionTargetType, name="distribution_target_type"),
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nullable=False,
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)
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target_id: Mapped[str] = mapped_column(String(50), nullable=False)
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status: Mapped[DistributionStatus] = mapped_column(
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Enum(DistributionStatus, name="distribution_status"),
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nullable=False,
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server_default=DistributionStatus.ACTIVE.value,
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)
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due_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
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closed_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
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created_by: Mapped[uuid.UUID | None] = mapped_column(UUID(as_uuid=True), ForeignKey("users.id"), nullable=True)
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False, server_default=func.now())
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document = relationship("Document")
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version = relationship("DocumentVersion", back_populates="distributions")
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acknowledgements = relationship(
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"Acknowledgement",
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back_populates="distribution",
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cascade="all, delete-orphan",
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)
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