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Author SHA1 Message Date
TudorandClaude Opus 5 2175dccb7c fix(api): treat "16 plus" as secondary, the way PHASE_GROUPS already does
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GIAS phase 6 is "16 plus", and PHASE_GROUPS deliberately files it in the
secondary group. The payload helper decided the same question with
`"secondary" in phase_text`, which that value does not satisfy — so a
sixth-form college was handed the primary bucket and offered infant schools
as its peers, with the KS2 metric key to label them. No crash; just a page
confidently showing the wrong schools.

The decision now lives in similar_schools.is_secondary_phase, beside the
PHASE_GROUPS bucket it selects from, so the two cannot drift again. A test
pins them together.

The same binary assumption had a second output. computeSchoolFlags tests for
the substring too, so a 16-plus school renders the primary template, and the
composer was labelling the section from the template: "Other primary schools
near <sixth form college>" above a row of secondaries. The section now
derives its noun from the school's own phase, which also removes the
duplicated wording from both composers. A 16-plus school's candidates span
the whole secondary group, so no single noun fits and it gets the honest
general one.

Reported in review on #150.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-22 06:41:49 +01:00
TudorandClaude Opus 5 b571d9c549 feat(api): decide which nearby schools a page may offer
Hard filters encode claims the section may not make — a selective school is
not an alternative to a non-selective one, a special school is not comparable
to a mainstream one, a Girls school is not an option for a Boys school's
reader — so they never relax. Soft preferences describe closeness of fit, so
they relax across three tiers, and only far enough to reach three; the
remaining slots up to six fill from the tiers already opened.

PHASE_GROUPS moves to schemas.py so this module can share it without
importing app, which would be a cycle.

_mask() exists because Series.apply on an empty Series returns a DataFrame,
and using that as a mask drops every column — so the next lookup raises
KeyError instead of yielding no rows. A special school with no special school
near it empties the frame at the provision filter, which is the ordinary case
for most special schools, so this was a crash on a common path rather than an
edge case.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-21 22:40:10 +01:00