Files
tick-stock-panel/backend/app/api/watchlist.py
T
wshy 3820b35921 fix(watchlist): 自选页 enriched 改为 LEFT JOIN, 修复不在缓存 universe 的自选股被静默丢弃 (#70)
后端 watchlist_enriched 原以 enriched 缓存为主表执行 inner filter
(df_e.filter(is_in(stock_symbols))), 方向反了: 不在缓存 universe 里的自选
标的 (新股/冷门股/新用户未同步) 被整行丢弃. 改为以自选列表为主表 LEFT JOIN
enriched, 缺失标的指标为 null, 前端已有 '—' 占位渲染兜底. ETF 分支同理.

前端 Watchlist 顶部胶囊区原 hiddenCount = allSymbols - sortedRows, 把 '数据
未返回' 误算为 '被筛选隐藏'. 拆分为两个口径:
- hiddenCount: rows.length - sortedRows.length (真正被筛选条件隐藏)
- pendingCount: sortedRows 中 close 为 null 的行数 (指标未就绪)
并新增 '待数据 N' 灰色提示与原 '已过滤 N' 区分.

新增 4 个回归测试覆盖核心契约.
2026-07-08 11:06:56 +08:00

258 lines
9.8 KiB
Python

"""自选股 API。"""
from __future__ import annotations
import logging
import math
import time
from datetime import date
import polars as pl
from fastapi import APIRouter, Query, Request
from pydantic import BaseModel
from app.services import watchlist
logger = logging.getLogger(__name__)
router = APIRouter(prefix="/api/watchlist", tags=["watchlist"])
class AddRequest(BaseModel):
symbol: str
note: str = ""
class BatchAddRequest(BaseModel):
symbols: list[str]
note: str = ""
def _with_names(rows: list[dict], request: Request) -> list[dict]:
if not rows:
return rows
try:
# 股票 + ETF 名称统一由 repo.get_name_map 解析, 自选列表可混合持有
name_by_symbol = request.app.state.repo.get_name_map([r.get("symbol") for r in rows])
if not name_by_symbol:
return rows
return [{**row, "name": name_by_symbol.get(row.get("symbol"))} for row in rows]
except Exception as e: # noqa: BLE001
logger.debug("attach watchlist names failed: %s", e)
return rows
@router.get("")
def list_all(request: Request):
return {"symbols": _with_names(watchlist.list_symbols(), request)}
@router.post("")
def add_one(req: AddRequest, request: Request):
rows = watchlist.add(req.symbol, req.note)
return {"symbols": _with_names(rows, request)}
@router.post("/batch")
def add_batch(req: BatchAddRequest, request: Request):
for sym in req.symbols:
watchlist.add(sym, req.note)
return {"symbols": _with_names(watchlist.list_symbols(), request), "added": len(req.symbols)}
@router.post("/{symbol}/top")
def move_one_to_top(symbol: str, request: Request):
rows = watchlist.move_to_top(symbol)
return {"symbols": _with_names(rows, request)}
@router.delete("/{symbol}")
def remove_one(symbol: str, request: Request):
rows = watchlist.remove(symbol)
return {"symbols": _with_names(rows, request)}
@router.delete("")
def clear_all():
"""清空自选列表。"""
count = watchlist.clear()
return {"removed": count}
# 自选页需要的列
_WATCHLIST_COLS = [
"symbol", "close", "change_pct", "change_amount", "amount",
"turnover_rate",
"amplitude", "annual_vol_20d",
"vol_ratio_5d",
"ma5", "ma10", "ma20", "ma60",
"vol_ma5", "vol_ma10",
"high_60d", "low_60d",
"rsi_6", "rsi_14", "rsi_24",
"macd_dif", "macd_dea", "macd_hist",
"kdj_k", "kdj_d", "kdj_j",
"boll_upper", "boll_lower",
"atr_14",
"momentum_5d", "momentum_10d", "momentum_20d", "momentum_30d", "momentum_60d",
"consecutive_limit_ups", "consecutive_limit_downs",
"signal_limit_up", "signal_limit_down", "signal_volume_surge",
"signal_ma_golden_5_20", "signal_macd_golden", "signal_n_day_high",
"signal_boll_breakout_upper", "signal_ma20_breakout",
"signal_ma_dead_5_20", "signal_macd_dead", "signal_n_day_low",
"signal_boll_breakdown_lower", "signal_ma20_breakdown",
]
@router.get("/enriched")
def watchlist_enriched(
request: Request,
ext_columns: str | None = Query(None, description="逗号分隔的 ext 列: config_id.field_name"),
):
"""自选股 enriched 数据 — 直接从 enriched 最新日读取, 无即时计算。
ext_columns 参数示例: "industry_rating.score,fund_flow.net_inflow"
会动态 LEFT JOIN 对应的 ext_{config_id} DuckDB view。
"""
t0 = time.perf_counter()
repo = request.app.state.repo
symbols = [r["symbol"] for r in watchlist.list_symbols()]
if not symbols:
return {"rows": [], "as_of": None, "elapsed_ms": 0}
# 按资产拆分自选 symbol; ETF enriched 是独立缓存, 仅自选真的含 ETF 才去加载
# (避免无 ETF 用户在缓存冷启动时触发 ETF 全量懒加载)
etf_set = repo.get_etf_symbol_set()
stock_symbols = [s for s in symbols if s not in etf_set]
etf_symbols = [s for s in symbols if s in etf_set]
df_e, cache_date = repo.get_enriched_latest()
# 保持原契约: 自选含股票但股票 enriched 未就绪 (预热中) → 返回"未就绪"而非部分结果
if stock_symbols and df_e.is_empty():
return {"rows": [], "as_of": None, "elapsed_ms": 0}
# 以自选列表为主表 LEFT JOIN enriched, 保证自选的每一只都返回一行;
# 不在 enriched 缓存里的标的 (新股/冷门股/新用户未同步) 指标为 null, 前端渲染为 "—".
# 旧实现是 df_e.filter(is_in(stock_symbols)), 方向反了 (以 enriched 为主),
# 会把不在缓存 universe 里的自选股静默丢弃.
if stock_symbols:
watchlist_df = pl.DataFrame({"symbol": stock_symbols})
if df_e.is_empty():
df = watchlist_df
else:
df = watchlist_df.join(df_e, on="symbol", how="left")
else:
df = pl.DataFrame()
# ETF 行合并; 缺失列 (换手率/涨跌停信号等) 为 null
etf_date = None
if etf_symbols:
df_etf_all, etf_date = repo.get_enriched_latest_asset("etf")
if not df_etf_all.is_empty():
# ETF 同样以自选为主表 LEFT JOIN, 缺失标的指标为 null
etf_watchlist_df = pl.DataFrame({"symbol": etf_symbols})
df_etf = etf_watchlist_df.join(df_etf_all, on="symbol", how="left")
if not df_etf.is_empty():
df = df_etf if df.is_empty() else pl.concat([df, df_etf], how="diagonal_relaxed")
# as_of 取两类缓存中较旧者, 避免把旧的 ETF 行标成股票缓存日期
dates = [d for d in (cache_date if stock_symbols else None, etf_date) if d is not None]
as_of = min(dates) if dates else None
if df.is_empty():
return {"rows": [], "as_of": str(as_of) if as_of else None, "elapsed_ms": 0}
# JOIN float_shares (仅股票有) + 名称 (股票/ETF 统一走 get_name_map)
df_i = repo.get_instruments()
if not df_i.is_empty() and "float_shares" in df_i.columns:
df = df.join(df_i.select(["symbol", "float_shares"]), on="symbol", how="left")
name_map = repo.get_name_map(df["symbol"].to_list())
df = df.with_columns(
pl.col("symbol").replace_strict(name_map, default=None, return_dtype=pl.Utf8).alias("name")
)
# 选择内置需要的列
keep = [c for c in _WATCHLIST_COLS + ["name", "float_shares"] if c in df.columns]
df = df.select(keep)
# 动态 JOIN 扩展数据表
ext_specs = _parse_ext_columns(ext_columns) if ext_columns else []
if ext_specs:
db = repo.store.db
data_dir = repo.store.data_dir
from app.services.ext_data import ExtConfigStore
from app.api.ext_data import _read_ext_dataframe
ext_store = ExtConfigStore(data_dir)
configs = {c.id: c for c in ext_store.load_all()}
for config_id, field_name in ext_specs:
view_name = f"ext_{config_id}"
ext_col_name = f"{config_id}__{field_name}"
try:
# 扩展时序数据必须只取最新分区;否则一个 symbol 会按历史分区数被 JOIN 放大。
cfg = configs.get(config_id)
if cfg:
ext_df, _ = _read_ext_dataframe(cfg, data_dir)
else:
ext_df = pl.from_arrow(db.query(
f"SELECT symbol, \"{field_name}\" FROM {view_name}"
).arrow())
if not ext_df.is_empty() and "symbol" in ext_df.columns:
ext_df = (
ext_df
.select(["symbol", field_name])
.unique(subset=["symbol"], keep="last")
.rename({field_name: ext_col_name})
)
df = df.join(ext_df.select(["symbol", ext_col_name]), on="symbol", how="left")
except Exception:
# view 不存在或字段不存在,尝试直接读 parquet
cfg = configs.get(config_id)
if cfg:
try:
ext_df, _ = _read_ext_dataframe(cfg, data_dir)
if not ext_df.is_empty() and "symbol" in ext_df.columns and field_name in ext_df.columns:
ext_df = (
ext_df
.select(["symbol", field_name])
.unique(subset=["symbol"], keep="last")
.rename({field_name: ext_col_name})
)
df = df.join(ext_df, on="symbol", how="left")
except Exception as e2:
logger.debug("ext join fallback failed for %s.%s: %s", config_id, field_name, e2)
# sanitize NaN / Inf
float_cols = [c for c in df.columns if df[c].dtype.is_float()]
if float_cols:
df = df.with_columns([
pl.when(pl.col(c).is_nan() | pl.col(c).is_infinite())
.then(None)
.otherwise(pl.col(c))
.alias(c)
for c in float_cols
])
# 按自选添加顺序(新加的在前)重排行
order_map = {s: i for i, s in enumerate(symbols)}
df = df.with_columns(pl.col("symbol").map_elements(lambda s: order_map.get(s, len(symbols)), return_dtype=pl.Int32).alias("_sort_order"))
df = df.sort("_sort_order").drop("_sort_order")
rows = df.to_dicts()
elapsed = (time.perf_counter() - t0) * 1000
return {"rows": rows, "as_of": str(as_of) if as_of else None, "elapsed_ms": elapsed}
def _parse_ext_columns(ext_columns: str) -> list[tuple[str, str]]:
"""解析 'config_id1.field1,config_id2.field2' 为 [(config_id, field_name), ...]"""
result = []
for part in ext_columns.split(","):
part = part.strip()
if "." not in part:
continue
config_id, field_name = part.split(".", 1)
config_id = config_id.strip()
field_name = field_name.strip()
if config_id and field_name:
result.append((config_id, field_name))
return result