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school_compare/backend/data_loader.py
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feat(admissions): show the last distance offered where councils publish it
Adds the cut-off distance a parent actually asks about — "how close do we
need to live?" — end to end: a Singer tap, dbt staging and mart models, an
Airflow DAG, and a tile on both detail templates. 3,597 schools across 57
local authorities carry a figure; the rest are unchanged.

There is no national source for this. Each LA publishes its own cut-offs in
its own format, and the collected CSV is transcribed from PDFs, spreadsheets
and web pages — so most of the work here is deciding what is safe to show.

Data
  * tap-uk-school-distance loads the CSV verbatim into raw. Keyed on
    (urn, year, school_name), because school_name carries the admission
    route: (urn, year) alone collides on 118 keys and a reload would have
    silently dropped every band but one.
  * stg_school_distance applies a 25 m – 25 km plausibility band. The source
    contains 0.0-mile rows (published where a school filled on a higher
    criterion), 1-metre cut-offs, and one reading 533 miles — ~4% of rows,
    all of which would put a visibly wrong number on a live page.
  * fact_admission_distance collapses routes to one row per school per year
    using the furthest, and keeps route_count so the page can say the figure
    is the widest of several bands rather than the one for a given child.

Serving
  * Kept out of fact_admissions: that mart is EES-derived and near-complete
    for England, this one covers 57 LAs, and the two refresh independently.
  * Latest year only. Coverage is ragged — a school may have 2021 and 2026
    and nothing between — so a history array would invite a trend line drawn
    through gaps that are absences of publication, not of a cut-off.
  * The Admissions section now renders on either source. 3% of the schools
    that render have a cut-off and no EES admissions row, and gating on
    admissions alone would have hidden the figure on those pages.

Interface
  * The year travels with the figure everywhere it appears; a cut-off
    detached from its admissions round is not a fact about anything.
  * "Not a fixed catchment — it moves every year" sits under every instance,
    because that is the inference a parent will otherwise draw.
  * Replaces a hardcoded "Historical distance cut-off data is not available
    for this school" that appeared on every secondary page, including the
    ones whose council does publish it. The absence is now stated only when
    it is real, and names the authority that would hold it.

The tint costs the muted tokens their AA margin: measured on the composited
backdrop (not the computed one, which reports the untinted card), --text-muted
falls to 4.09:1 in dark theme. The tile uses --text-secondary instead — 6.50:1
dark, 6.60:1 light.

The DAG is manual, like the other annual ones: councils publish on allocation
day, each on its own timetable, so there is no date worth scheduling against.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WDvkyqqHABm4bmth2kjAxE
2026-08-15 22:48:30 +01:00

906 lines
31 KiB
Python

"""
Data loading module — reads from marts.* tables built by dbt.
Provides efficient queries with caching.
"""
import logging
import re
import pandas as pd
import numpy as np
from typing import Optional, Dict, Tuple, List
import requests
from sqlalchemy import text
import sqlalchemy.exc
from sqlalchemy.orm import Session
from .config import settings
from .database import SessionLocal, engine
from .models import (
DimSchool, DimLocation, KS2Performance,
FactOfstedInspection, FactAdmissions, FactAdmissionDistance,
FactDeprivation, FactFinance, FactPupilCharacteristics,
)
from .ofsted_codes import ofsted_page_url, report_card_labels
from .schemas import SCHOOL_TYPE_MAP
from .gias_codes import (
ADMISSIONS_POLICY,
ESTABLISHMENT_STATUS,
PHASE_OF_EDUCATION,
RELIGIOUS_CHARACTER,
SCHOOL_TYPE,
translate,
)
# mart code column -> (API name column, dictionary)
_GIAS_CODE_COLUMNS = {
"phase_code": ("phase", PHASE_OF_EDUCATION),
"school_type_code": ("school_type", SCHOOL_TYPE),
"status_code": ("status", ESTABLISHMENT_STATUS),
"religious_character_code": ("religious_denomination", RELIGIOUS_CHARACTER),
"admissions_policy_code": ("admissions_policy", ADMISSIONS_POLICY),
}
def translate_gias_code_columns(df: pd.DataFrame) -> pd.DataFrame:
"""Map GIAS code columns to today's name columns (API contract).
Runs immediately after pd.read_sql so every downstream consumer —
filters, PHASE_GROUPS, payloads, /api/filters — keeps seeing names.
DataFrames without the code columns (old schema, test fixtures) pass
through unchanged.
"""
for code_col, (name_col, mapping) in _GIAS_CODE_COLUMNS.items():
if code_col in df.columns:
df[name_col] = df[code_col].map(lambda c: translate(c, mapping))
return df
_postcode_cache: Dict[str, Tuple[float, float]] = {}
_typesense_client = None
def _get_typesense_client():
global _typesense_client
if _typesense_client is not None:
return _typesense_client
url = settings.typesense_url
key = settings.typesense_api_key
if not url or not key:
return None
try:
import typesense
host = url.split("//")[-1]
host_part, _, port_str = host.partition(":")
port = int(port_str) if port_str else 8108
_typesense_client = typesense.Client({
"nodes": [{"host": host_part, "port": str(port), "protocol": "http"}],
"api_key": key,
"connection_timeout_seconds": 2,
})
return _typesense_client
except Exception:
return None
def search_schools_typesense(query: str, limit: int = 250) -> List[int]:
"""Search Typesense. Returns URNs in relevance order, or [] if unavailable."""
client = _get_typesense_client()
if client is None:
return []
try:
result = client.collections["schools"].documents.search({
"q": query,
"query_by": "school_name,local_authority,postcode",
"per_page": min(limit, 250),
"typo_tokens_threshold": 1,
})
return [int(h["document"]["urn"]) for h in result.get("hits", [])]
except Exception:
return []
def normalize_school_type(school_type: Optional[str]) -> Optional[str]:
"""Convert cryptic school type codes to user-friendly names."""
if not school_type:
return None
code = school_type.strip().upper()
if code in SCHOOL_TYPE_MAP:
return SCHOOL_TYPE_MAP[code]
return school_type
def geocode_single_postcode(postcode: str) -> Optional[Tuple[float, float]]:
"""Geocode a single postcode using postcodes.io API."""
if not postcode:
return None
postcode = postcode.strip().upper()
if postcode in _postcode_cache:
return _postcode_cache[postcode]
try:
response = requests.get(
f"https://api.postcodes.io/postcodes/{postcode}",
timeout=10,
)
if response.status_code == 200:
data = response.json()
if data.get("result"):
lat = data["result"].get("latitude")
lon = data["result"].get("longitude")
if lat and lon:
_postcode_cache[postcode] = (lat, lon)
return (lat, lon)
except Exception:
pass
return None
def haversine_distance(lat1: float, lon1: float, lat2: float, lon2: float) -> float:
"""Calculate great-circle distance between two points (miles)."""
from math import radians, cos, sin, asin, sqrt
lat1, lon1, lat2, lon2 = map(radians, [lat1, lon1, lat2, lon2])
dlat = lat2 - lat1
dlon = lon2 - lon1
a = sin(dlat / 2) ** 2 + cos(lat1) * cos(lat2) * sin(dlon / 2) ** 2
return 2 * asin(sqrt(a)) * 3956
# =============================================================================
# MAIN DATA LOAD — joins dim_school + dim_location + fact_performance
# fact_performance is a merged KS2+KS4 table (one row per URN per year).
# All-through schools have both KS2 and KS4 columns populated in the same row.
# =============================================================================
_MAIN_QUERY = text("""
SELECT
s.urn,
s.school_name,
s.phase_code,
s.school_type_code,
s.academy_trust_name AS trust_name,
s.academy_trust_uid AS trust_uid,
s.religious_character_code,
s.gender,
s.age_range,
s.has_sixth_form,
s.status_code,
s.admissions_policy_code,
s.capacity,
s.total_pupils AS gias_total_pupils,
s.headteacher_name,
s.website,
s.telephone,
s.nursery_provision,
foi.ofsted_grade,
foi.ofsted_date,
foi.ofsted_framework,
foi.ofsted_rc_date,
l.local_authority_name AS local_authority,
l.local_authority_code,
l.address_line1 AS address1,
l.address_line2 AS address2,
l.town,
l.county,
l.parliamentary_constituency,
l.postcode,
l.latitude,
l.longitude,
p.year,
p.source_urn,
p.total_pupils,
p.eligible_pupils,
-- KS2 columns (NULL for pure secondary schools)
p.rwm_expected_pct,
p.rwm_high_pct,
p.reading_expected_pct,
p.reading_high_pct,
p.reading_avg_score,
p.reading_progress,
p.reading_progress_lower_ci,
p.reading_progress_upper_ci,
p.writing_expected_pct,
p.writing_high_pct,
p.writing_progress,
p.writing_progress_lower_ci,
p.writing_progress_upper_ci,
p.writing_working_towards_pct,
p.maths_expected_pct,
p.maths_high_pct,
p.maths_avg_score,
p.maths_progress,
p.maths_progress_lower_ci,
p.maths_progress_upper_ci,
p.gps_expected_pct,
p.gps_high_pct,
p.gps_avg_score,
p.science_expected_pct,
p.reading_absence_pct,
p.writing_absence_pct,
p.maths_absence_pct,
p.gps_absence_pct,
p.science_absence_pct,
p.rwm_expected_boys_pct,
p.rwm_high_boys_pct,
p.rwm_expected_girls_pct,
p.rwm_high_girls_pct,
p.rwm_expected_disadvantaged_pct,
p.rwm_expected_non_disadvantaged_pct,
p.disadvantaged_gap,
p.disadvantaged_pct,
p.eal_pct,
p.stability_pct,
-- KS4 columns (NULL for pure primary schools)
p.attainment_8_score,
p.progress_8_score,
p.progress_8_lower_ci,
p.progress_8_upper_ci,
p.progress_8_english,
p.progress_8_maths,
p.progress_8_ebacc,
p.progress_8_open,
p.progress_8_banding,
p.attainment_8_disadvantage_gap,
p.progress_8_disadvantage_gap,
p.english_maths_strong_pass_pct,
p.english_maths_standard_pass_pct,
p.ebacc_entry_pct,
p.ebacc_strong_pass_pct,
p.ebacc_standard_pass_pct,
p.ebacc_avg_score,
p.gcse_grade_91_pct,
p.prior_attainment_avg,
-- SEN (coalesced KS2+KS4 in fact_performance)
p.sen_support_pct,
p.sen_ehcp_pct
FROM marts.dim_school s
JOIN marts.dim_location l ON s.urn = l.urn
LEFT JOIN marts.fact_performance p ON s.urn = p.urn
LEFT JOIN (
SELECT DISTINCT ON (urn)
urn,
-- Fall back to the ungraded-inspection grade when no graded grade exists.
COALESCE(overall_effectiveness, ungraded_grade) AS ofsted_grade,
inspection_date AS ofsted_date,
framework AS ofsted_framework,
-- Report-card signal for list/map badges: non-null only when the
-- latest inspection carries report-card grades. framework is the
-- raw event grouping ("Schools - S5"), never "ReportCard", so it
-- can't be used to detect report cards.
rc_inspection_date AS ofsted_rc_date
FROM marts.fact_ofsted_inspection
ORDER BY urn, inspection_date DESC NULLS LAST
) foi ON s.urn = foi.urn
ORDER BY s.school_name, p.year
""")
# Fallback used when marts.dim_school predates the has_sixth_form column
# (i.e. the nightly dbt pipeline hasn't rebuilt the mart yet on this DB).
# Keeps the column present as NULL so downstream code — including the
# app.py fallback branch — behaves as designed instead of KeyError-ing.
_MAIN_QUERY_NO_SIXTH_FORM = text(
str(_MAIN_QUERY).replace("s.has_sixth_form,", "NULL AS has_sixth_form,")
)
assert "NULL AS has_sixth_form" in str(_MAIN_QUERY_NO_SIXTH_FORM), (
"expected replacement of 's.has_sixth_form,' to have taken effect"
)
# Fallback used when marts.dim_school predates the GIAS code-dictionary
# migration (i.e. the nightly dbt pipeline hasn't rebuilt the mart yet on
# this DB, so it still has the old name columns instead of *_code columns).
_MAIN_QUERY_LEGACY_NAMES = str(_MAIN_QUERY)
_LEGACY_NAME_REPLACEMENTS = [
("s.phase_code,", "s.phase,"),
("s.school_type_code,", "s.school_type,"),
(
"s.religious_character_code,",
"s.religious_character AS religious_denomination,",
),
("s.status_code,", "s.status,"),
("s.admissions_policy_code,", "s.admissions_policy,"),
]
for _old, _new in _LEGACY_NAME_REPLACEMENTS:
assert _old in _MAIN_QUERY_LEGACY_NAMES, (
f"expected {_old!r} to be present in _MAIN_QUERY before replacement"
)
_MAIN_QUERY_LEGACY_NAMES = _MAIN_QUERY_LEGACY_NAMES.replace(_old, _new)
_MAIN_QUERY_LEGACY_NAMES = text(_MAIN_QUERY_LEGACY_NAMES)
# Fallback used when marts predate the optional GIAS/location detail columns
# (telephone, nursery provision, county, parliamentary constituency) — i.e. the
# nightly dbt pipeline hasn't rebuilt the mart yet on this DB. Keeps each column
# present as NULL so the whole data load degrades gracefully instead of failing.
_EXTRA_OPTIONAL_COLUMNS = (
"telephone",
"nursery_provision",
"county",
"parliamentary_constituency",
)
_MAIN_QUERY_NO_EXTRA_COLS = str(_MAIN_QUERY)
for _col, _tbl in (
("telephone", "s"),
("nursery_provision", "s"),
("county", "l"),
("parliamentary_constituency", "l"),
):
_src = f"{_tbl}.{_col},"
assert _src in _MAIN_QUERY_NO_EXTRA_COLS, (
f"expected {_src!r} to be present in _MAIN_QUERY before replacement"
)
_MAIN_QUERY_NO_EXTRA_COLS = _MAIN_QUERY_NO_EXTRA_COLS.replace(
_src, f"NULL AS {_col},"
)
_MAIN_QUERY_NO_EXTRA_COLS = text(_MAIN_QUERY_NO_EXTRA_COLS)
_GIAS_CODE_COLUMN_NAMES = (
"phase_code",
"school_type_code",
"religious_character_code",
"status_code",
"admissions_policy_code",
)
# Strip any single table alias prefix (s., l., p., foi., …) — Postgres reports
# an undefined *qualified* column unquoted as "column l.county does not exist",
# so matching only the s. alias would miss dim_location columns (county,
# parliamentary_constituency) and defeat the graceful-degradation fallback.
_MISSING_COLUMN_RE = re.compile(r'column "?(?:\w+\.)?(\w+)"? does not exist')
def _missing_column_name(exc: Exception) -> Optional[str]:
"""Name of the missing column from a psycopg2 UndefinedColumn error.
Inspects exc.orig (the DBAPI error), whose message names only the
offending column — str(exc) also embeds the full SQL statement, which
contains every column name and therefore must not be matched against.
"""
orig = getattr(exc, "orig", None)
match = _MISSING_COLUMN_RE.search(str(orig) if orig is not None else str(exc))
return match.group(1) if match else None
def load_school_data_as_dataframe() -> pd.DataFrame:
"""Load all school + KS2 data as a pandas DataFrame."""
try:
df = pd.read_sql(_MAIN_QUERY, engine)
except sqlalchemy.exc.ProgrammingError as exc:
missing = _missing_column_name(exc)
if missing in _GIAS_CODE_COLUMN_NAMES:
logging.getLogger(__name__).warning(
"marts predate the GIAS code migration — falling back to "
"legacy name-column query: %s",
exc,
)
try:
df = pd.read_sql(_MAIN_QUERY_LEGACY_NAMES, engine)
except Exception as exc2:
print(f"Warning: Could not load school data from marts: {exc2}")
return pd.DataFrame()
elif missing == "has_sixth_form":
logging.getLogger(__name__).warning(
"marts.dim_school is missing has_sixth_form (pipeline hasn't "
"rebuilt the mart yet on this DB) — retrying without it: %s",
exc,
)
try:
df = pd.read_sql(_MAIN_QUERY_NO_SIXTH_FORM, engine)
except Exception as exc2:
print(f"Warning: Could not load school data from marts: {exc2}")
return pd.DataFrame()
elif missing in _EXTRA_OPTIONAL_COLUMNS:
logging.getLogger(__name__).warning(
"marts.dim_school/dim_location is missing %s (pipeline hasn't "
"rebuilt the mart yet on this DB) — retrying without the "
"optional detail columns: %s",
missing, exc,
)
try:
df = pd.read_sql(_MAIN_QUERY_NO_EXTRA_COLS, engine)
except Exception as exc2:
print(f"Warning: Could not load school data from marts: {exc2}")
return pd.DataFrame()
else:
print(f"Warning: Could not load school data from marts: {exc}")
return pd.DataFrame()
except Exception as exc:
print(f"Warning: Could not load school data from marts: {exc}")
return pd.DataFrame()
if df.empty:
return df
df = translate_gias_code_columns(df)
# Build address string
df["address"] = df.apply(
lambda r: ", ".join(
p for p in [r.get("address1"), r.get("address2"), r.get("town"), r.get("postcode")]
if p and str(p) != "None"
),
axis=1,
)
# Normalize school type
df["school_type"] = df["school_type"].apply(normalize_school_type)
return df
# Cache for DataFrame
_df_cache: Optional[pd.DataFrame] = None
# Pre-computed latest-year snapshot (one row per school, with prev-year trend columns)
_df_latest_cache: Optional[pd.DataFrame] = None
def load_school_data() -> pd.DataFrame:
"""Load school data with caching."""
global _df_cache
if _df_cache is not None:
return _df_cache
print("Loading school data from marts...")
_df_cache = load_school_data_as_dataframe()
if not _df_cache.empty:
print(f"Total records loaded: {len(_df_cache)}")
print(f"Unique schools: {_df_cache['urn'].nunique()}")
print(f"Years: {sorted(_df_cache['year'].dropna().unique())}")
else:
print("No data found in marts (EES data may not have been loaded yet)")
return _df_cache
def load_latest_school_data() -> pd.DataFrame:
"""Return a cached one-row-per-school DataFrame at the latest available year.
The expensive groupby / merge / prev-year trend computation runs once at
startup (or after a cache clear) rather than on every search request.
Per-request filters (phase, gender, LA …) should be applied to the returned
DataFrame's copy; they must NOT modify the cached object.
"""
global _df_latest_cache
if _df_latest_cache is not None:
return _df_latest_cache
df = load_school_data()
if df.empty:
return df
# Schools that have no performance rows (PRUs, new schools, etc.)
df_no_perf = df[df["year"].isna()].drop_duplicates(subset=["urn"])
df_with_perf = df[df["year"].notna()]
# Reduce to the latest year per school
latest_year = df_with_perf.groupby("urn")["year"].max().reset_index()
df_latest = df_with_perf.merge(latest_year, on=["urn", "year"])
# Attach previous-year metrics for trend arrows (second-latest year per school)
df_sorted = df_with_perf.sort_values(["urn", "year"], ascending=[True, False])
df_prev = df_sorted.groupby("urn").nth(1).reset_index()
if not df_prev.empty and "rwm_expected_pct" in df_prev.columns:
prev_rwm = df_prev[["urn", "rwm_expected_pct"]].rename(
columns={"rwm_expected_pct": "prev_rwm_expected_pct"}
)
if "attainment_8_score" in df_prev.columns:
prev_rwm = prev_rwm.merge(
df_prev[["urn", "attainment_8_score"]].rename(
columns={"attainment_8_score": "prev_attainment_8_score"}
),
on="urn",
how="outer",
)
df_latest = df_latest.merge(prev_rwm, on="urn", how="left")
# Merge back schools with no performance data
df_latest = pd.concat([df_latest, df_no_perf], ignore_index=True)
print(f"Latest-snapshot cache built: {len(df_latest)} schools")
_df_latest_cache = df_latest
return _df_latest_cache
def clear_cache():
"""Clear all caches."""
global _df_cache, _df_latest_cache
_df_cache = None
_df_latest_cache = None
# =============================================================================
# METADATA QUERIES
# =============================================================================
def get_available_years(db: Session = None) -> List[int]:
close_db = db is None
if db is None:
db = SessionLocal()
try:
result = db.query(KS2Performance.year).distinct().order_by(KS2Performance.year).all()
return [r[0] for r in result]
except Exception:
return []
finally:
if close_db:
db.close()
def get_available_local_authorities(db: Session = None) -> List[str]:
close_db = db is None
if db is None:
db = SessionLocal()
try:
result = (
db.query(DimLocation.local_authority_name)
.filter(DimLocation.local_authority_name.isnot(None))
.distinct()
.order_by(DimLocation.local_authority_name)
.all()
)
return [r[0] for r in result if r[0]]
except Exception:
return []
finally:
if close_db:
db.close()
def get_schools_count(db: Session = None) -> int:
close_db = db is None
if db is None:
db = SessionLocal()
try:
return db.query(DimSchool).count()
except Exception:
return 0
finally:
if close_db:
db.close()
def get_data_info(db: Session = None) -> dict:
close_db = db is None
if db is None:
db = SessionLocal()
try:
school_count = get_schools_count(db)
years = get_available_years(db)
local_authorities = get_available_local_authorities(db)
return {
"total_schools": school_count,
"years_available": years,
"local_authorities_count": len(local_authorities),
"data_source": "PostgreSQL (marts)",
}
finally:
if close_db:
db.close()
# =============================================================================
# SUPPLEMENTARY DATA — per-school detail page
# =============================================================================
def compute_benchmarks(df: pd.DataFrame, census_benchmarks: dict | None = None) -> dict:
"""State-school benchmarks computed from our dataset (spec §5/§8.6).
NOT official DfE figures — consumers must label them
"state-school average (computed from our dataset)". The disadvantaged
attainment average is weighted by cohort size (eligible_pupils) so
small schools don't dominate.
Context measures (FSM/EAL/pupil counts) come from `census_benchmarks`
(the fact_census_benchmarks mart, pupil-weighted, keyed by phase): the
performance df has no fsm_pct at all, and its eal/disadvantaged columns
are KS2-only — medianing them for "secondary" produced junk anchors
from the handful of all-through schools. When the mart is unavailable
these are None; never fall back across measure definitions.
"""
if df.empty or "year" not in df.columns:
return {}
latest_year = df["year"].max()
if pd.isna(latest_year):
return {}
d = df[df["year"] == latest_year]
if d.empty:
return {}
is_secondary = (
d["attainment_8_score"].notna()
if "attainment_8_score" in d.columns
else pd.Series(False, index=d.index)
)
prim, sec = d[~is_secondary], d[is_secondary]
def _median(sub, col):
if col not in sub.columns:
return None
v = sub[col].median()
return round(float(v), 1) if pd.notna(v) else None
def _weighted_disadvantaged(sub):
needed = {"rwm_expected_disadvantaged_pct", "eligible_pupils"}
if not needed <= set(sub.columns):
return None
s = sub.dropna(subset=list(needed))
if s.empty or s["eligible_pupils"].sum() == 0:
return None
w = (
(s["rwm_expected_disadvantaged_pct"] * s["eligible_pupils"]).sum()
/ s["eligible_pupils"].sum()
)
return round(float(w), 1)
def _block(sub, phase, with_disadvantaged):
census = (census_benchmarks or {}).get(phase) or {}
block = {
"eal_pct": census.get("eal_pct"),
"sen_support_pct": _median(sub, "sen_support_pct"),
"disadvantaged_pct": _median(sub, "disadvantaged_pct") if with_disadvantaged else None,
"fsm_pct": census.get("fsm_pct"),
"median_pupils": census.get("median_pupils"),
}
if with_disadvantaged:
block["disadvantaged_rwm_expected_pct"] = _weighted_disadvantaged(sub)
return block
return {
"source": "state-school average (computed from our dataset)",
"year": int(latest_year),
"primary": _block(prim, "primary", with_disadvantaged=True),
"secondary": _block(sec, "secondary", with_disadvantaged=False),
}
def _ofsted_block(o, urn: int) -> dict:
"""Serialize the latest Ofsted inspection row for API responses.
`grade_source` records where the effective overall grade came from:
a graded (Section 5) inspection, or carried forward from an ungraded
(Section 8) outcome — materially different claims a UI must be able
to distinguish. `report_card` holds coded+labelled renewed-framework
(Nov 2025) area judgements; safeguarding is a separate boolean and
never appears among the graded areas.
"""
if o.overall_effectiveness is not None:
grade_source = "graded"
overall = o.overall_effectiveness
elif o.ungraded_grade is not None:
# Fall back to the grade parsed from an ungraded (Section 8) outcome
# (e.g. "School remains Good") so the detail page matches the list badge.
grade_source = "ungraded_carried_forward"
overall = o.ungraded_grade
else:
grade_source = None
overall = None
block = {
"framework": o.framework,
"inspection_date": o.inspection_date.isoformat() if o.inspection_date else None,
"rc_inspection_date": (
o.rc_inspection_date.isoformat()
if getattr(o, "rc_inspection_date", None)
else None
),
"inspection_type": o.inspection_type,
"overall_effectiveness": overall,
"grade_source": grade_source,
"quality_of_education": o.quality_of_education,
"behaviour_attitudes": o.behaviour_attitudes,
"personal_development": o.personal_development,
"leadership_management": o.leadership_management,
"early_years_provision": o.early_years_provision,
"sixth_form_provision": o.sixth_form_provision,
"previous_overall": None, # Not available in new schema
"rc_safeguarding_met": o.rc_safeguarding_met,
"rc_inclusion": o.rc_inclusion,
"rc_curriculum_teaching": o.rc_curriculum_teaching,
"rc_achievement": o.rc_achievement,
"rc_attendance_behaviour": o.rc_attendance_behaviour,
"rc_personal_development": o.rc_personal_development,
"rc_leadership_governance": o.rc_leadership_governance,
"rc_early_years": o.rc_early_years,
"rc_sixth_form": o.rc_sixth_form,
"report_url": o.report_url,
"ofsted_page_url": ofsted_page_url(urn),
}
block["report_card"] = report_card_labels(block)
return block
def _admissions_row_dict(a) -> dict:
"""Serialize one fact_admissions row for API responses."""
return {
"year": a.year,
"school_phase": a.school_phase,
"places_offered": a.places_offered,
"total_applications": a.total_applications,
"first_preference_applications": a.first_preference_applications,
"first_preference_offers": a.first_preference_offers,
"first_preference_offer_pct": a.first_preference_offer_pct,
"oversubscription_ratio": a.oversubscription_ratio,
"oversubscribed": a.oversubscribed,
"total_offers": a.total_offers,
"second_preference_offers": a.second_preference_offers,
"third_preference_offers": a.third_preference_offers,
"cross_la_applications": a.cross_la_applications,
"cross_la_offers": a.cross_la_offers,
}
def _admission_distance_dict(d) -> dict:
"""Serialize one fact_admission_distance row for API responses."""
return {
"year": d.year,
"distance_m": d.distance_m,
"route_count": d.route_count,
"la_name": d.la_name,
"distance_unit_raw": d.distance_unit_raw,
}
def _census_dict(pc) -> dict:
return {
"year": pc.year,
"total_pupils": pc.total_pupils,
"female_pupils": pc.female_pupils,
"male_pupils": pc.male_pupils,
"fsm_pct": pc.fsm_pct,
"eal_pct": pc.eal_pct,
}
def _deprivation_dict(d) -> dict:
return {
"lsoa_code": d.lsoa_code,
"idaci_score": d.idaci_score,
"idaci_decile": d.idaci_decile,
}
def _finance_dict(f) -> dict:
return {
"year": f.year,
"per_pupil_spend": f.per_pupil_spend,
"staff_cost_pct": f.staff_cost_pct,
"teacher_cost_pct": f.teacher_cost_pct,
"support_staff_cost_pct": f.support_staff_cost_pct,
"premises_cost_pct": f.premises_cost_pct,
}
def _empty_supplementary() -> dict:
return {
"ofsted": None,
"census": None,
"admissions": None,
"admissions_history": [],
"admission_distance": None,
"sen_detail": None,
"phonics": None,
"deprivation": None,
"finance": None,
}
def get_supplementary_data_batch(db: Session, urns: list[int]) -> dict:
"""Fetch supplementary data for many URNs with one query per table
(WHERE urn IN (...)) instead of ~5 queries per school, collapsing the
per-request round-trips from 5*N to a constant 5. Returns {urn: block}
with the same shape get_supplementary_data produces per URN.
Each table is queried independently and failures degrade that table to
empty for every URN — a missing mart never blanks the others.
"""
urns = [int(u) for u in urns]
result = {urn: _empty_supplementary() for urn in urns}
if not urns:
return result
def _safe(fn):
try:
fn()
except Exception as e:
import logging
logging.getLogger(__name__).error("batch supplementary query failed: %s", e)
db.rollback()
# Ofsted — latest inspection per URN. Ordered so the first row seen per
# URN is the most recent.
def _ofsted():
rows = (
db.query(FactOfstedInspection)
.filter(FactOfstedInspection.urn.in_(urns))
.order_by(FactOfstedInspection.urn, FactOfstedInspection.inspection_date.desc())
.all()
)
seen = set()
for o in rows:
if o.urn in seen:
continue
seen.add(o.urn)
result[o.urn]["ofsted"] = _ofsted_block(o, o.urn)
_safe(_ofsted)
# Census — latest year per URN.
def _census():
rows = (
db.query(FactPupilCharacteristics)
.filter(FactPupilCharacteristics.urn.in_(urns))
.order_by(FactPupilCharacteristics.urn, FactPupilCharacteristics.year.desc())
.all()
)
seen = set()
for pc in rows:
if pc.urn in seen:
continue
seen.add(pc.urn)
result[pc.urn]["census"] = _census_dict(pc)
_safe(_census)
# Admissions — all years per URN, oldest first (multi-year trend view).
def _admissions():
rows = (
db.query(FactAdmissions)
.filter(FactAdmissions.urn.in_(urns))
.order_by(FactAdmissions.urn, FactAdmissions.year.asc())
.all()
)
history: dict = {urn: [] for urn in urns}
for a in rows:
history[a.urn].append(_admissions_row_dict(a))
for urn, rows_for_urn in history.items():
result[urn]["admissions_history"] = rows_for_urn
result[urn]["admissions"] = rows_for_urn[-1] if rows_for_urn else None
_safe(_admissions)
# Last distance offered — latest year per URN.
#
# Only the most recent year is served. Coverage is ragged (a school may
# have 2021 and 2026 but nothing between), so a history array would invite
# a trend line drawn through gaps that are absences of publication rather
# than absences of a cut-off.
def _admission_distance():
rows = (
db.query(FactAdmissionDistance)
.filter(FactAdmissionDistance.urn.in_(urns))
.order_by(FactAdmissionDistance.urn, FactAdmissionDistance.year.desc())
.all()
)
seen = set()
for d in rows:
if d.urn in seen:
continue
seen.add(d.urn)
result[d.urn]["admission_distance"] = _admission_distance_dict(d)
_safe(_admission_distance)
# Deprivation — one row per URN.
def _deprivation():
rows = (
db.query(FactDeprivation)
.filter(FactDeprivation.urn.in_(urns))
.all()
)
for d in rows:
result[d.urn]["deprivation"] = _deprivation_dict(d)
_safe(_deprivation)
# Finance — latest year per URN.
def _finance():
rows = (
db.query(FactFinance)
.filter(FactFinance.urn.in_(urns))
.order_by(FactFinance.urn, FactFinance.year.desc())
.all()
)
seen = set()
for f in rows:
if f.urn in seen:
continue
seen.add(f.urn)
result[f.urn]["finance"] = _finance_dict(f)
_safe(_finance)
return result
def get_supplementary_data(db: Session, urn: int) -> dict:
"""Supplementary data for a single URN (thin wrapper over the batch)."""
return get_supplementary_data_batch(db, [urn])[int(urn)]