48 lines
1.6 KiB
Python
48 lines
1.6 KiB
Python
"""PostAttachment — a non-art file preserved from a post.
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Art images become ImageRecords; everything else a post contained
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(archives, .exe, .pdf, ...) is captured here so nothing is lost.
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post_id is nullable (set only when an adjacent sidecar yields a Post);
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artist_id mirrors the canonical attribution model (FC-2d-vii-c). Both
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FKs are SET NULL so deleting a Post/Artist never deletes the preserved
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binary row.
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"""
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from datetime import datetime
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from sqlalchemy import (
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BigInteger,
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DateTime,
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ForeignKey,
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Integer,
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String,
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Text,
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func,
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)
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from sqlalchemy.orm import Mapped, mapped_column
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from .base import Base
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class PostAttachment(Base):
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__tablename__ = "post_attachment"
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id: Mapped[int] = mapped_column(Integer, primary_key=True)
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post_id: Mapped[int | None] = mapped_column(
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ForeignKey("post.id", ondelete="SET NULL"), nullable=True, index=True
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)
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artist_id: Mapped[int | None] = mapped_column(
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ForeignKey("artist.id", ondelete="SET NULL"), nullable=True, index=True
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)
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sha256: Mapped[str] = mapped_column(
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String(64), nullable=False, unique=True, index=True
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)
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path: Mapped[str] = mapped_column(Text, nullable=False)
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original_filename: Mapped[str] = mapped_column(Text, nullable=False)
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ext: Mapped[str] = mapped_column(String(32), nullable=False)
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mime: Mapped[str | None] = mapped_column(String(128), nullable=True)
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size_bytes: Mapped[int] = mapped_column(BigInteger, nullable=False)
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captured_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True), nullable=False, server_default=func.now()
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)
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