Add location, date, size, likes to database

migrations/004.location-date-size-like.down.sql

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+-- Drop location fields
+
+ALTER TABLE buildings DROP COLUMN IF EXISTS location_name;
+ALTER TABLE buildings DROP COLUMN IF EXISTS location_number;
+ALTER TABLE buildings DROP COLUMN IF EXISTS location_street;
+ALTER TABLE buildings DROP COLUMN IF EXISTS location_line_two;
+ALTER TABLE buildings DROP COLUMN IF EXISTS location_town;
+ALTER TABLE buildings DROP COLUMN IF EXISTS location_postcode;
+
+ALTER TABLE buildings DROP COLUMN IF EXISTS location_latitude;
+ALTER TABLE buildings DROP COLUMN IF EXISTS location_longitude;
+
+-- Drop date fields
+
+ALTER TABLE buildings DROP COLUMN IF EXISTS date_year;
+ALTER TABLE buildings DROP COLUMN IF EXISTS date_lower;
+ALTER TABLE buildings DROP COLUMN IF EXISTS date_upper;
+ALTER TABLE buildings DROP COLUMN IF EXISTS date_source;
+
+ALTER TABLE buildings DROP COLUMN IF EXISTS facade_year;
+ALTER TABLE buildings DROP COLUMN IF EXISTS facade_upper;
+ALTER TABLE buildings DROP COLUMN IF EXISTS facade_lower;
+ALTER TABLE buildings DROP COLUMN IF EXISTS facade_source;
+
+-- Drop size fields
+ALTER TABLE buildings DROP COLUMN IF EXISTS size_storeys_attic;
+ALTER TABLE buildings DROP COLUMN IF EXISTS size_storeys_core;
+ALTER TABLE buildings DROP COLUMN IF EXISTS size_storeys_basement;
+
+ALTER TABLE buildings DROP COLUMN IF EXISTS size_height_apex;
+ALTER TABLE buildings DROP COLUMN IF EXISTS size_floor_area_ground;
+ALTER TABLE buildings DROP COLUMN IF EXISTS size_floor_area_total;
+ALTER TABLE buildings DROP COLUMN IF EXISTS size_width_frontage;
+
+-- Drop like-me fields
+DROP TABLE IF EXISTS building_user_likes;
+ALTER TABLE buildings DROP COLUMN IF EXISTS likes_total;

migrations/004.location-date-size-like.up.sql

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+-- Location fields
+
+-- Building Name
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS location_name varchar;
+ALTER TABLE buildings ADD CONSTRAINT buildings_location_name_len CHECK (length(location_name) < 90);
+-- Building Number
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS location_number varchar;
+ALTER TABLE buildings ADD CONSTRAINT buildings_location_number_len CHECK (length(location_number) < 10);
+-- Street
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS location_street varchar;
+ALTER TABLE buildings ADD CONSTRAINT buildings_location_street_len CHECK (length(location_street) < 90);
+-- Address line 2
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS location_line_two varchar;
+ALTER TABLE buildings ADD CONSTRAINT buildings_location_line_two_len CHECK (length(location_line_two) < 90);
+-- Town
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS location_town varchar;
+ALTER TABLE buildings ADD CONSTRAINT buildings_location_town_len CHECK (length(location_town) < 90);
+-- Postcode
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS location_postcode varchar;
+ALTER TABLE buildings ADD CONSTRAINT buildings_location_postcode_len CHECK (length(location_postcode) < 11);
+
+-- Explicit coordinates (user-provided; see geometries table for polygons)
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS location_latitude double precision;
+
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS location_longitude double precision;
+
+
+-- Building age (main construction, facade)
+
+-- Year built (best estimate)
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS date_year smallint;
+-- Year built (lower estimate)
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS date_lower smallint;
+-- Year built (upper estimate)
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS date_upper smallint;
+-- Date Source
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS date_source varchar;
+ALTER TABLE buildings ADD CONSTRAINT buildings_date_source_len CHECK (length(date_source) < 150);
+
+-- Facade date
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS facade_year smallint;
+-- Facade date (upper)
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS facade_upper smallint;
+-- Facade date (lower)
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS facade_lower smallint;
+-- Date Source
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS facade_source varchar;
+ALTER TABLE buildings ADD CONSTRAINT buildings_facade_source_len CHECK (length(facade_source) < 150);
+
+
+-- Size
+
+-- Attic storeys
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS size_storeys_attic smallint;
+-- Core storeys
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS size_storeys_core smallint;
+-- Basement storeys
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS size_storeys_basement smallint;
+
+-- Height to apex (m)
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS size_height_apex real;
+-- Ground floor area (m2)
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS size_floor_area_ground real;
+-- Total floor area (m2)
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS size_floor_area_total real;
+-- Frontage Width (m)
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS size_width_frontage real;
+
+
+-- Likes
+
+-- Total likes (denormalised from up-to-one-vote-per-user)
+ALTER TABLE buildings ADD COLUMN IF NOT EXISTS likes_total integer;
+
+CREATE TABLE IF NOT EXISTS building_user_likes (
+    building_id integer REFERENCES buildings,
+    user_id uuid REFERENCES users
+);