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Milestone 328's acceptance test compared a database built by the real
0001..0087 chain against one built from the models, and found ~130
places where they disagree. This closes them.
Almost all were the MODEL being wrong, so almost all of this is model
edits with no DDL — the database already had these things, nothing in it
changes, and no deploy is needed for this part:
* 92 columns gained server_default. The models carried Python-side
`default=` only, so the ORM filled the value and the column had no
database default. Anything inserting outside the ORM behaved
differently from production.
* Eleven indexes that existed only in migrations are now declared:
the three backup_run reporting indexes, the two date-ordered
image_record browse indexes, import_task and presentation_review,
and the three task_run history indexes. All use text() for their DESC
ordering and postgresql_where for the partial one.
* Two UNIQUE indexes that autogenerate silently proposed DROPPING,
because neither is expressible as a UniqueConstraint:
uq_tag_name_kind_fandom — an EXPRESSION index over
(name, kind, COALESCE(fandom_id, 0))
uq_post_artist_external_id_null_source — PARTIAL, WHERE source_id
IS NULL
post.py already had a comment describing the second one. The comment
was right; nothing declared it.
* The two external_link enum CHECKs (host, status) — rule 36 territory,
and absent from the model entirely.
* Two indexes were named explicitly. A bare index=True generated
ix_tag_alias_canonical_tag_id where the database has
ix_tag_alias_canonical, so autogenerate proposed a drop+create of an
index that was already there under another name. Same for
tag_suggestion_rejection.
Only ONE thing needed DDL, as 0088: tag.fandom_id is declared
index=True but no migration ever created that index.
Deliberately NOT here: image_record.sha256. The model says unique=True;
0001 created a plain index. Duplicates are possible today and the ORM
believes otherwise. The fix depends on whether duplicates already exist
— if they do, that is a dedupe decision, not a constraint — so it waits
on an answer about live data.
The real severity of #3275 is not the squash. It is that --autogenerate
has been unsafe on this project: run against the old models it would
have proposed dropping eleven indexes and two uniqueness guarantees.
41 lines
1.9 KiB
Python
41 lines
1.9 KiB
Python
"""Artist — unified entity that is both the gallery's ``artist:`` tag concept
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and GallerySubscriber's Subscription. ``is_subscription`` is True if any
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Sources are attached.
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"""
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from datetime import datetime
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from sqlalchemy import Boolean, DateTime, Integer, String, Text, func
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from .base import Base
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class Artist(Base):
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__tablename__ = "artist"
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id: Mapped[int] = mapped_column(Integer, primary_key=True)
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# Display name: freely editable, NON-unique (two real creators can share a
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# name). Decoupled from identity/storage in migration 0077 (#130) — renaming
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# touches ONLY this. Was unique until then.
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name: Mapped[str] = mapped_column(String(255), nullable=False)
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# Storage/identity key: IMMUTABLE + unique. This is the on-disk path
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# component (download_service artist_slug = artist.slug → images_root/<slug>/
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# <platform>/…), so it is set once at creation (collision-suffixed) and NEVER
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# changes — a rename must not move files. Existing artists keep their slug.
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slug: Mapped[str] = mapped_column(String(255), nullable=False, unique=True)
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notes: Mapped[str | None] = mapped_column(Text, nullable=True)
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# True once a Source is attached; flips false if all sources removed.
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is_subscription: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False, server_default="false")
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# Per-artist scheduling overrides; null means "use global default".
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auto_check: Mapped[bool] = mapped_column(Boolean, nullable=False, default=True, server_default="true")
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check_interval_seconds: Mapped[int | None] = mapped_column(Integer, nullable=True)
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created_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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sources = relationship("Source", back_populates="artist", cascade="all, delete-orphan")
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