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rfc-app/backend/app/collections.py
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Ben Stull 79a27a946b §22 S6: per-collection enabled_models — the §22.12 model-universe chain
A collection's .collection.yaml may carry an enabled_models list that NARROWS
its project's universe, which narrows the deployment ENABLED_MODELS. Resolution
(extending §6.6/§6.7): funder ∩ per-entry models ∩ collection ∩ project, with
the operator providers as the ceiling.

- migration 031: additive collections.config_json (parallels projects.config_json).
- registry.parse_collection_manifest: read enabled_models into CollectionEntry.config
  (absent = inherit, present incl. [] = narrow; [] opts the collection out of AI);
  reject a non-list. _upsert_named_collection persists config_json. The default
  collection (from projects.yaml) leaves it NULL — it inherits the project.
- models_resolver: _scope_narrowed_universe narrows the operator universe by the
  entry's project then collection enabled_models; the funder universe is bounded
  by it too. A collection cannot widen its project (narrowing from the ceiling).
- collections.get_collection surfaces enabled_models; GET
  /api/projects/:id/collections/:cid returns it.
- test_s6_collection_models_vertical.py: 9 cases (parse, the narrowing chain
  incl. opt-out + cannot-widen, API surfacing).

Backend: 525 passed. Per SPEC §22.12. Releases as part of v0.45.0.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-06 01:30:16 -07:00

107 lines
4.1 KiB
Python

"""§22 collection grain — resolution helpers beneath the project tier.
In S1 each project has exactly one collection (the default). These helpers
recover the collection for a project and read the per-corpus fields (`type`,
`initial_state`) that moved down from `projects` in migration 029. Project-grain
authz (auth.py) recovers a row's project by joining `collections` on
`collection_id`.
"""
from __future__ import annotations
import json
from . import db
DEFAULT_COLLECTION_ID = "default"
def _enabled_models_from_config(config_json: str | None) -> list[str] | None:
"""§22.12 per-collection enabled_models from a `config_json` blob, or None
when unset (the collection inherits its project's universe)."""
if not config_json:
return None
try:
cfg = json.loads(config_json)
except (json.JSONDecodeError, TypeError):
return None
em = cfg.get("enabled_models") if isinstance(cfg, dict) else None
return [str(m) for m in em] if isinstance(em, list) else None
def default_collection_id(project_id: str) -> str:
"""The id of a project's default (S1: sole) collection. Falls back to the
literal 'default' when the project has no collection row yet."""
row = db.conn().execute(
"SELECT id FROM collections WHERE project_id = ? ORDER BY created_at, id LIMIT 1",
(project_id,),
).fetchone()
return row["id"] if row else DEFAULT_COLLECTION_ID
def project_of_collection(collection_id: str) -> str | None:
"""The project a collection belongs to, or None if unknown."""
row = db.conn().execute(
"SELECT project_id FROM collections WHERE id = ?", (collection_id,)
).fetchone()
return row["project_id"] if row else None
def collection_initial_state(collection_id: str) -> str:
"""§22.4b landing state for new entries in a collection. 'super-draft'
default for an unknown/unset row (today's safe flow)."""
row = db.conn().execute(
"SELECT initial_state FROM collections WHERE id = ?", (collection_id,)
).fetchone()
if row is None or not row["initial_state"]:
return "super-draft"
return row["initial_state"]
def collection_type(collection_id: str) -> str:
"""The collection's immutable §22.4a type. 'document' default for unknown."""
row = db.conn().execute(
"SELECT type FROM collections WHERE id = ?", (collection_id,)
).fetchone()
return row["type"] if row and row["type"] else "document"
def subfolder_of(collection_id: str) -> str:
"""The content-repo subfolder a collection lives under (§22.3). Empty string
for the default collection (entries at the repo root `rfcs/`)."""
row = db.conn().execute(
"SELECT subfolder FROM collections WHERE id = ?", (collection_id,)
).fetchone()
return (row["subfolder"] if row else "") or ""
def get_collection(collection_id: str) -> dict | None:
"""The full collection row as a dict, or None if unknown. `enabled_models`
(§22.12) is unpacked from `config_json` as a list, or None when unset."""
row = db.conn().execute(
"SELECT id, project_id, type, subfolder, initial_state, visibility, name, "
"config_json FROM collections WHERE id = ?",
(collection_id,),
).fetchone()
if row is None:
return None
out = dict(row)
out["enabled_models"] = _enabled_models_from_config(out.pop("config_json", None))
return out
def list_collections(project_id: str, include_unlisted: bool = False) -> list[dict]:
"""Collections in a project, the default first then by name (§22.5). `unlisted`
is omitted from enumeration unless include_unlisted (a direct-id read or the
corpus mirror, which serves every collection)."""
rows = db.conn().execute(
"SELECT id, project_id, type, subfolder, initial_state, visibility, name "
"FROM collections WHERE project_id = ? ORDER BY (id != 'default'), name, id",
(project_id,),
).fetchall()
out: list[dict] = []
for r in rows:
if not include_unlisted and r["visibility"] == "unlisted":
continue
out.append(dict(r))
return out