48 lines
1.7 KiB
Python
48 lines
1.7 KiB
Python
"""Group database model."""
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from datetime import datetime
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from typing import TYPE_CHECKING
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from uuid import UUID, uuid4
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from sqlalchemy import DateTime, ForeignKey, String, Text, func
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from sqlalchemy.dialects.postgresql import UUID as PGUUID
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from app.database.base import Base
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if TYPE_CHECKING:
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from app.database.models.board import Board
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from app.database.models.board_image import BoardImage
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class Group(Base):
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"""
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Group model for organizing images with labels and annotations.
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Groups contain multiple images that can be moved together and have
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shared visual indicators (color, annotation text).
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"""
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__tablename__ = "groups"
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id: Mapped[UUID] = mapped_column(PGUUID(as_uuid=True), primary_key=True, default=uuid4)
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board_id: Mapped[UUID] = mapped_column(
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PGUUID(as_uuid=True), ForeignKey("boards.id", ondelete="CASCADE"), nullable=False
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)
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name: Mapped[str] = mapped_column(String(255), nullable=False)
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color: Mapped[str] = mapped_column(String(7), nullable=False) # Hex color #RRGGBB
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annotation: Mapped[str | None] = mapped_column(Text, nullable=True)
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created_at: Mapped[datetime] = mapped_column(DateTime, nullable=False, server_default=func.now())
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updated_at: Mapped[datetime] = mapped_column(
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DateTime, nullable=False, server_default=func.now(), onupdate=func.now()
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)
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# Relationships
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board: Mapped["Board"] = relationship("Board", back_populates="groups")
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board_images: Mapped[list["BoardImage"]] = relationship("BoardImage", back_populates="group")
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def __repr__(self) -> str:
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"""String representation of Group."""
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return f"<Group(id={self.id}, name='{self.name}', board_id={self.board_id})>"
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