advanced-alchemy-repositories
Repositories
Execution Workflow
- Choose the base repository class that matches the runtime:
SQLAlchemyAsyncRepository,SQLAlchemySyncRepository, or a slug or query variant. - Set
model_typeimmediately and keep repositories model-specific. - Use built-in filters and
list_and_count()for list endpoints instead of reimplementing pagination logic. - Use bulk helpers for inserts, updates, upserts, and deletes when the workload is batch-shaped.
- Keep transaction ownership outside the repository unless the framework integration explicitly handles commit behavior.
Implementation Rules
- Keep repositories focused on persistence and query composition, not HTTP contracts.
- Prefer repository subclasses over duplicated ad hoc helper functions spread across handlers.
- Reach for query repositories only when custom SQL or aggregation work is materially different from standard CRUD.
- Keep loader options explicit so relationship behavior is predictable.
Example Pattern
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