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Run 5026 got the models-vs-chain diff to 7 lines. Three findings, and one
of them reverses an assumption I made in the previous commit.
The doubled CHECK names are what the DATABASE has, not what the generator
invented. base.py's convention is ck_%(table_name)s_%(constraint_name)s,
which — unlike uq/fk/ix — applies even to a constraint that already has a
name, so four migrations that passed an already-prefixed name got it
prefixed twice:
ck_import_settings_ck_import_settings_singleton
ck_ml_settings_ck_ml_settings_singleton
ck_post_ck_post_translation_override
ck_tag_ck_tag_fandom_requires_character
The workflow repair added last commit is still correct and still needed —
autogenerate really does re-double a name on the round trip — but it was
making the MODELS side clean against a chain that is dirty. The
comment in ml_settings.py claiming its bare name "matches migration 0003"
was simply false; 0003 produces the doubled form.
Nothing reads a CHECK constraint by name, so this has never done harm.
But it is precisely the development-era residue the collapsed baseline
exists to leave behind, and a public schema should not ship it — so 0088
renames the deployed constraints and all six models now declare bare
names. RENAME CONSTRAINT is catalog-only: no scan, no rewrite, no
revalidation, which is why this is safe on post and tag. Guarded on
pg_constraint scoped by conrelid, so it is a no-op on a database built
from the models.
ix_tag_fandom_id showed as a difference only because chain_ref was pinned
to 0a5bbe8, which predates 0088 — the comparison was measuring the models
against a chain missing the migration that closes the gap. chain_ref now
defaults to blank, meaning "the chain in this ref". Pin it to a commit
only after the collapse, when the tree no longer carries the revisions.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017QHszn9H8VBvx5Ke8x1hvw
105 lines
4.6 KiB
Python
105 lines
4.6 KiB
Python
"""Post — provenance anchor for one creator post (may contain many images).
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`source_id` is nullable since alembic 0030 — filesystem-imported posts
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with no live subscription have NULL source_id. `artist_id` is the
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denormalized always-present link to the creator (added in 0030 so
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artist-filter queries don't depend on the Source detour).
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"""
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from datetime import datetime
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from sqlalchemy import (
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CheckConstraint,
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DateTime,
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ForeignKey,
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Index,
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Integer,
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JSON,
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String,
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Text,
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UniqueConstraint,
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func,
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text,
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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 Post(Base):
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__tablename__ = "post"
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__table_args__ = (
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# alembic 0030. The comment above described this index; nothing declared
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# it, so autogenerate proposed dropping it (#3275).
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Index("uq_post_artist_external_id_null_source", "artist_id", "external_post_id",
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unique=True, postgresql_where=text("source_id IS NULL")),
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# Source-bound dedup. Postgres treats NULL != NULL so rows
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# with source_id IS NULL aren't deduped by this constraint;
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# the partial unique index `uq_post_artist_external_id_null_source`
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# (created in alembic 0030) covers that case via
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# (artist_id, external_post_id).
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UniqueConstraint("source_id", "external_post_id", name="uq_post_source_external_id"),
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CheckConstraint(
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"translation_override IN ('auto', 'force', 'original')",
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# Bare name: Base.metadata's naming convention prepends
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# ck_<table>_. Pre-prefixing it here doubles the prefix — see
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# alembic 0088, which renames the four constraints that shipped
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# that way (#3275).
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name="translation_override",
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),
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)
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id: Mapped[int] = mapped_column(Integer, primary_key=True)
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source_id: Mapped[int | None] = mapped_column(
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ForeignKey("source.id", ondelete="SET NULL"), nullable=True, index=True
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)
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# Denormalized; always equals source.artist_id when source_id is set
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# (the importer is responsible for keeping them consistent on insert).
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# Filter queries (artist detail, artist-scoped posts feed) use this
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# directly instead of joining through Source.
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artist_id: Mapped[int] = mapped_column(
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ForeignKey("artist.id", ondelete="CASCADE"),
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nullable=False, index=True,
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)
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external_post_id: Mapped[str] = mapped_column(String(128), nullable=False)
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post_url: Mapped[str | None] = mapped_column(Text, nullable=True)
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post_title: Mapped[str | None] = mapped_column(Text, nullable=True)
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post_date: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
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raw_metadata: Mapped[dict | None] = mapped_column(JSON, nullable=True)
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description: Mapped[str | None] = mapped_column(Text, nullable=True)
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attachment_count: Mapped[int | None] = mapped_column(Integer, nullable=True)
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# -- Post-text translation (milestone 143). Filled by the translate_posts
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# sweep via the Interpreter LAN service so viewing is instant.
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# translated_source_lang is the DETECTED original language; "en" (or a
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# passthrough) means nothing to translate and the *_translated columns stay
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# NULL. engine_version keys the Interpreter cache — re-runs are ~1ms and a
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# model upgrade re-translates instead of serving stale.
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post_title_translated: Mapped[str | None] = mapped_column(Text, nullable=True)
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description_translated: Mapped[str | None] = mapped_column(Text, nullable=True)
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translated_source_lang: Mapped[str | None] = mapped_column(
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String(8), nullable=True
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)
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translation_engine_version: Mapped[str | None] = mapped_column(
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String(128), nullable=True
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)
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translated_at: Mapped[datetime | None] = mapped_column(
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DateTime(timezone=True), nullable=True
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)
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# Sticky per-post override of the translation decision (milestone 155):
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# 'auto' = the acceptance gate decides; 'force' = always store Interpreter's
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# translation even below the confidence floor (rescue a skipped legit-foreign
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# title); 'original' = never translate, keep the original (kill a confidently
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# mis-flagged one the floor can't catch). The sweep reads this on every run,
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# and re-translate leaves 'original' posts alone, so the choice survives a
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# Re-translate-all.
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translation_override: Mapped[str] = mapped_column(
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String(16), nullable=False, default="auto", server_default="auto",
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)
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downloaded_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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