feat(factor): M7.1 因子定义入库 + /api/factors 读库(目录契约源)
- factor_definition 表(migration b7f2a5e81c33,MySQL 已应用):name 主键 + 元数据 (formula/brief/frequency/lookback/direction/requires JSON/version)+ FactorDefinition entity(from_registry_def 由代码注册表构造) - FactorRepository Protocol + SQLAlchemy 实现(幂等 upsert/list/get) - /api/factors 改读 DB;目录为空自动 seed 注册表(幂等)—— 保留自定义因子登记能力 (计算仍须代码注册,引用未注册因子照常 FactorError,防伪因子) - tests/test_factor_catalog.py(repo 幂等/roundtrip/registry seed、API seed+字段齐全); test_api 的 client fixture 补 tmp sqlite session(factors 读库);全量 pytest 通过
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"""因子目录 API:/api/factors。"""
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"""因子目录 API:/api/factors(M7.1 起读 DB factor_definition)。
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目录为空时自动从代码注册表 seed(幂等);随后可登记自定义因子元数据。
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响应为 FactorDefinition 实体(含 requires 列表等)。
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"""
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from __future__ import annotations
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from fastapi import APIRouter
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from app.quant.factors import list_factors
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from app.api.deps import DbSession, FactorRepoDep
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from app.application.services.factor_catalog import seed_registry_factors
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from app.domain.entities.factor import FactorDefinition
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router = APIRouter(prefix="/factors", tags=["factors"])
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@router.get("", summary="因子目录(含元数据)")
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def list_factor_catalog() -> list[dict]:
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return [
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{
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"name": d.name,
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"description": d.description,
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"brief": d.brief,
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"formula": d.formula,
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"frequency": d.frequency,
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"lookback": d.lookback,
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"direction": d.direction,
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"requires": list(d.requires),
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}
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for d in list_factors()
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]
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@router.get("", summary="因子目录(含元数据,来自 factor_definition 表)")
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def list_factor_catalog(factor_repo: FactorRepoDep, session: DbSession) -> list[FactorDefinition]:
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if not factor_repo.list():
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seed_registry_factors(factor_repo, session) # 首次:从代码注册表 seed
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return factor_repo.list()
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