Cheng Zhou
21 lines
1.0 KiB
Python
21 lines
1.0 KiB
Python
import uuid
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from datetime import datetime
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from sqlalchemy import Boolean, DateTime, ForeignKey, String, 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 StudyMember(Base):
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__tablename__ = "study_members"
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__table_args__ = (UniqueConstraint("study_id", "user_id", name="uq_study_member"),)
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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"), nullable=False, index=True)
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user_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("users.id"), nullable=False)
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role_in_study: Mapped[str] = mapped_column(String(20), nullable=False)
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is_active: Mapped[bool] = mapped_column(Boolean, nullable=False, server_default="true")
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added_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False, server_default=func.now())
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