Cheng Zhou
28 lines
1.5 KiB
Python
28 lines
1.5 KiB
Python
import uuid
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from datetime import datetime, date
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from sqlalchemy import Date, DateTime, ForeignKey, String, Text, UniqueConstraint, func
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from sqlalchemy.dialects.postgresql import UUID
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from sqlalchemy.orm import Mapped, mapped_column
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from app.db.base_class import Base
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class Subject(Base):
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__tablename__ = "subjects"
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__table_args__ = (UniqueConstraint("study_id", "subject_no", name="uq_subject_study_no"),)
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id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
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study_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("studies.id"), index=True, nullable=False)
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site_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("sites.id"), index=True, nullable=False)
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subject_no: Mapped[str] = mapped_column(String(50), nullable=False)
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status: Mapped[str] = mapped_column(String(20), nullable=False, default="SCREENING")
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screening_date: Mapped[date | None] = mapped_column(Date, nullable=True)
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enrollment_date: Mapped[date | None] = mapped_column(Date, nullable=True)
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completion_date: Mapped[date | None] = mapped_column(Date, nullable=True)
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drop_reason: Mapped[str | None] = mapped_column(Text, 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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updated_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True), nullable=False, server_default=func.now(), onupdate=func.now()
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)
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