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Production-grade media metadata backend per docs/aurora-core-spec.md: Aurora-owned UUIDv7 identity system, normalized movie/TV/people/credits schema, provider abstraction with a TMDb adapter, an idempotent async ingestion pipeline (normalize -> match -> upsert -> provenance), a Postgres FTS/trigram search layer, a stateless FastAPI v1 API with Redis caching/rate-limiting, arq workers, dev/prod Docker Compose topologies, unit + integration + load tests, CI, and architecture/ database/API/ERD documentation. Co-Authored-By: Claude Sonnet 5 <[email protected]>
46 lines
1.6 KiB
Python
46 lines
1.6 KiB
Python
"""Generalized external identifier system.
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Links an Aurora entity (any type) to its identifier in an external provider
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(TMDb, IMDb, TVDb, Wikidata, ...). External IDs are references, never
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primary keys — see app/core/ids.py and docs/architecture.md.
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"""
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from __future__ import annotations
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import uuid
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from sqlalchemy import ForeignKey, String, UniqueConstraint
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from app.models.base import Base, TimestampMixin, UUIDPrimaryKeyMixin
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from app.models.provider import Provider
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class ExternalID(Base, UUIDPrimaryKeyMixin, TimestampMixin):
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__tablename__ = "external_ids"
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__table_args__ = (
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# A provider's ID for a given entity type must be unique (one Aurora
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# entity per provider-native ID).
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UniqueConstraint(
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"provider_id", "entity_type", "external_id", name="uq_external_id_source"
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),
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# An Aurora entity has at most one mapping per provider.
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UniqueConstraint(
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"entity_type", "entity_id", "provider_id", name="uq_external_id_entity_provider"
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),
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)
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entity_type: Mapped[str] = mapped_column(String(30), nullable=False)
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entity_id: Mapped[uuid.UUID] = mapped_column(nullable=False)
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provider_id: Mapped[uuid.UUID] = mapped_column(
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ForeignKey("providers.id", ondelete="CASCADE"), nullable=False
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)
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external_id: Mapped[str] = mapped_column(String(200), nullable=False)
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url: Mapped[str | None] = mapped_column(String(500), nullable=True)
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provider: Mapped[Provider] = relationship()
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__all__ = ["ExternalID"]
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