Merge pull request #389 from tomalrussell/features/migrations_sustainability

Sustainability sub categories for launch #360

migrations/011.sustainability.down.sql

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+-- Remove sustainability fields, update in paralell with adding new fields
+-- BREEAM rating
+ALTER TABLE buildings DROP COLUMN IF EXISTS sust_breeam_rating;
+-- BREEAM date
+ALTER TABLE buildings DROP COLUMN IF EXISTS sust_breeam_date;
+
+-- DEC (display energy certifcate, only applies to non domestic buildings)
+ALTER TABLE buildings DROP COLUMN IF EXISTS sust_dec;
+-- DEC date
+ALTER TABLE buildings DROP COLUMN IF EXISTS sust_dec_date;
+
+--DEC certifcate lmk key, this would be lmkkey, no online lookup but can scrape through API. Numeric (25)
+ALTER TABLE buildings DROP COLUMN IF EXISTS sust_dec_lmkey;
+
+-- Aggregate EPC rating (Estimated) for a building, derived from inidividual certificates
+ALTER TABLE buildings DROP COLUMN IF EXISTS sust_aggregate_estimate_epc;
+
+-- Last significant retrofit date YYYY
+ALTER TABLE buildings DROP COLUMN IF EXISTS sust_retrofit_date;
+
+--How much embodied carbon? One for ML, tons CO2 int
+ALTER TABLE buildings DROP COLUMN IF EXISTS sust_embodied_carbon;
+
+--Life expectancy of the building, via further analysis
+ALTER TABLE buildings DROP COLUMN IF EXISTS sust_life_expectancy;
+
+--Average lifespan of typology based on statistical analysis of similar stock
+ALTER TABLE buildings DROP COLUMN IF EXISTS sust_lifespan_average;

migrations/011.sustainability.up.sql

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+-- BREEAM ratings, one of:
+-- - Outstanding
+-- - Excellent
+-- - Very good
+-- - Good
+-- - Pass
+-- - Unclassified
+CREATE TYPE sust_breeam_rating
+AS ENUM ('Outstanding',
+    'Excellent',
+    'Very good',
+    'Good',
+    'Pass',
+    'Unclassified');
+
+ALTER TABLE buildings
+    ADD COLUMN IF NOT EXISTS sust_breeam_rating sust_breeam_rating DEFAULT 'Unclassified';
+
+-- Date of BREEAM
+ALTER TABLE buildings
+    ADD COLUMN IF NOT EXISTS sust_breeam_date smallint;
+
+-- DEC (display energy certifcate, only applies to non domestic buildings)
+-- A - G
+CREATE TYPE sust_dec
+AS ENUM ('A',
+    'B',
+    'C',
+    'D',
+    'E',
+    'F',
+    'G');
+
+-- Date of DEC YYYY
+ALTER TABLE buildings
+    ADD COLUMN IF NOT EXISTS sust_dec_date smallint;
+
+
+ALTER TABLE buildings
+    ADD COLUMN IF NOT EXISTS sust_dec sust_dec;
+
+-- Aggregate EPC rating (Estimated) for a building, derived from inidividual certificates
+-- A+ - G
+CREATE TYPE sust_aggregate_estimate_epc
+AS ENUM ('A',
+    'B',
+    'C',
+    'D',
+    'E',
+    'F',
+    'G');
+
+ALTER TABLE buildings
+    ADD COLUMN IF NOT EXISTS sust_aggregate_estimate_epc sust_aggregate_estimate_epc;
+
+-- Last significant retrofit date YYYY
+ALTER TABLE buildings
+    ADD COLUMN IF NOT EXISTS sust_retrofit_date smallint;
+
+--How much embodied carbon? One for ML, tons CO2 int
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS sust_embodied_carbon numeric(7,2);
+
+--Life expectancy of the building, via further analysis
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS sust_life_expectancy smallint;
+
+--Average lifespan of typology based on statistical analysis of similar stock
+ALTER TABLE buildings ADD COLUMN IF NOTE EXISTS sust_lifespan_average smallint;