tudor/school_compare
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719f06e480018bd75c2d09f7ccd9e79806e7b5bb
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10 Commits

Author SHA1 Message Date
Tudor
719f06e480 fix(pipeline): make total_pupils non-optional for Typesense, add lat/lng to dim_location
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- Remove optional flag from total_pupils (Typesense requires default
  sorting field to be non-optional)
- Add latitude/longitude columns to dim_location computed from PostGIS
  geom, for direct use by backend and Typesense sync

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-03-26 22:45:02 +00:00
Tudor
03256fed41 fix(dbt): add search_path to profile so PostGIS functions resolve in all schemas
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Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-03-26 21:45:53 +00:00
Tudor
b7cc01f26f fix(dbt): schema-qualify PostGIS functions in dim_location
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PostGIS extension lives in public schema; marts schema can't resolve
unqualified ST_MakePoint/ST_Transform calls.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-03-26 21:45:03 +00:00
Tudor
28ba2fd0a6 fix(dbt): cast easting/northing to double precision for ST_MakePoint
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Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-03-26 21:29:16 +00:00
Tudor
54df58746e feat(pipeline): use GIAS easting/northing for all geocoding, drop postcode step
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GIAS grid references are the actual school location — far more accurate
than postcode centroids. Remove geocode_postcodes.py from the daily DAG
and the postcode-not-null filter from dim_location.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-03-26 21:18:59 +00:00
Tudor
d3e655abdb fix(dbt): compute geom from easting/northing in dim_location
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Convert GIAS British National Grid coordinates (EPSG:27700) to WGS84
(EPSG:4326) directly in the dbt model. The geocode script backfills
schools missing easting/northing via Postcodes.io.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-03-26 21:17:08 +00:00
Tudor
d25e333826 fix(dbt): remove invalid relationship test on map_school_lineage
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Lineage map includes predecessor URNs for closed schools, which are
correctly excluded from dim_school (status = 'Open').

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-03-26 20:59:29 +00:00
Tudor
e7b1ab9f37 fix(pipeline): expand GIAS schema, handle empty strings, scope DAG selectors
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- Declare all 34 columns needed by dbt in GIAS tap schema (target-postgres
  only persists columns present in the Singer schema message)
- Use nullif() for empty-string-to-integer/date casts in staging models
- Scope daily DAG dbt build to GIAS models only (stg_gias_establishments+
  stg_gias_links+) to avoid errors on unloaded sources
- Scope annual EES DAG similarly; remove redundant dbt test steps
- Make dim_school gracefully handle missing int_ofsted_latest table

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-03-26 20:43:24 +00:00
Tudor
97d975114a feat(pipeline): implement parent-view, fbit, idaci Singer taps + align staging/mart models
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Port extraction logic from integrator scripts into Singer SDK taps:
- tap-uk-parent-view: scrapes Ofsted open data portal, parses survey responses (14 questions)
- tap-uk-fbit: queries FBIT API per-URN with rate limiting, computes per-pupil spend
- tap-uk-idaci: downloads IoD2019 XLSX, batch-resolves postcodes→LSOAs via postcodes.io

Update dbt models to match actual tap output schemas:
- stg_idaci now includes URN (tap does the postcode→LSOA→school join)
- stg_parent_view expanded from 8 to 13 question columns
- fact_deprivation simplified (no longer needs postcode→LSOA join in dbt)
- fact_parent_view expanded to include all 13 question metrics

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-03-26 10:38:07 +00:00
Tudor
8f02b5125e feat(pipeline): add Meltano + dbt + Airflow ELT pipeline scaffold
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Replaces the hand-rolled integrator with a production-grade ELT pipeline
using Meltano (Singer taps), dbt Core (medallion architecture), and
Apache Airflow (orchestration). Adds Typesense for search and PostGIS
for geospatial queries.

- 6 custom Singer taps (GIAS, EES, Ofsted, Parent View, FBIT, IDACI)
- dbt project: 12 staging, 5 intermediate, 12 mart models
- 3 Airflow DAGs (daily/monthly/annual schedules)
- Typesense sync + batch geocoding scripts
- docker-compose: add Airflow, Typesense; upgrade to PostGIS
- Portainer stack definition matching live deployment topology

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-03-26 08:37:53 +00:00