135 lines
4.2 KiB
SQL
135 lines
4.2 KiB
SQL
--
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-- Geometries table
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--
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-- To store building outlines.
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-- Geometries form the backbone, expected to be provided from other sources.
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CREATE TABLE IF NOT EXISTS geometries (
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-- internal unique id
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geometry_id serial PRIMARY KEY,
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-- cross-reference to data source id
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source_id varchar(30),
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-- geometry as EPSG:3857 avoiding reprojection for tiles
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geometry_geom geometry(POLYGON, 3857)
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);
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--
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-- Buildings table
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--
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-- To store collected data.
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-- This is the core dataset to be collected by the application.
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CREATE TABLE IF NOT EXISTS buildings (
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-- internal unique id
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building_id serial PRIMARY KEY,
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-- OS MasterMap topo id
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ref_toid varchar,
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-- OSM reference id
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ref_osm_id bigint,
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-- reference to geometry, aiming to decouple from geometry provider
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geometry_id integer REFERENCES geometries
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);
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ALTER TABLE buildings ADD CONSTRAINT buildings_ref_toid_len CHECK (length(ref_toid) < 90);
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--
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-- Properties table
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--
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-- To store UPRN information normalised - building<->property relationship is typically
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-- one-to-many, may be many-to-many.
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CREATE TABLE IF NOT EXISTS building_properties (
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-- internal primary key
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building_property_id serial PRIMARY KEY,
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-- UPRN
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uprn bigint,
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-- Parent should reference UPRN, but assume dataset may be (initially) incomplete
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parent_uprn bigint,
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-- Building ID may be null for failed matches
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building_id integer REFERENCES buildings,
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-- TOID match provided by AddressBase
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toid varchar
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);
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--
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-- User categories
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--
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-- Self-selected, optional categories
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CREATE TABLE IF NOT EXISTS user_categories (
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category_id serial PRIMARY KEY,
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-- category name/short description
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category varchar
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);
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INSERT INTO user_categories ( category_id, category ) VALUES ( 1, 'Not provided');
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--
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-- User access levels
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--
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-- If necessary for moderation
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CREATE TABLE IF NOT EXISTS user_access_levels (
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access_level_id serial PRIMARY KEY,
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-- name/short description
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access_level varchar
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);
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INSERT INTO user_access_levels ( access_level_id, access_level ) VALUES ( 1, 'untrusted');
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--
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-- Users table
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--
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-- Minimal user data to support login and edit history
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CREATE TABLE IF NOT EXISTS users (
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-- internal unique id
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user_id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
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-- username for login (required)
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username varchar UNIQUE NOT NULL,
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-- email address for password reset (optional)
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email varchar UNIQUE,
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-- password - as generated from hash(salt+password) via pgcrypto
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pass varchar,
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-- date registered
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registered timestamp default NOW(),
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-- user category (optional, self-selected)
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category integer REFERENCES user_categories NOT NULL DEFAULT 1,
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-- user access level (essential, default untrusted)
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access_level integer REFERENCES user_access_levels NOT NULL DEFAULT 1
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);
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ALTER TABLE users ADD CONSTRAINT users_username_len CHECK (length(username) < 30);
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ALTER TABLE users ADD CONSTRAINT users_email_len CHECK (length(email) < 50);
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ALTER TABLE users ADD CONSTRAINT users_pass_len CHECK (length(pass) < 60);
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CREATE INDEX IF NOT EXISTS user_username_idx ON users ( username );
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CREATE INDEX IF NOT EXISTS user_email_idx ON users ( email );
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--
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-- User session table
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--
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CREATE TABLE IF NOT EXISTS user_sessions (
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sid varchar PRIMARY KEY,
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sess json NOT NULL,
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expire timestamp(6) NOT NULL
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);
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CREATE INDEX IF NOT EXISTS user_sessions_expire_idx on user_sessions ( expire );
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--
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-- Logs table
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--
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-- To store all changes to building data, recording users and change in data
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-- over time.
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CREATE TABLE IF NOT EXISTS logs (
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-- integer for internal unique id
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log_id bigserial PRIMARY KEY,
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-- default timestamp to time now
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log_timestamp TIMESTAMP default NOW(),
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-- log document to be extended in application
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-- log from..to; only changed values (must be reversible)
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forward_patch jsonb,
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reverse_patch jsonb,
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-- log user id
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user_id uuid REFERENCES users,
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-- log building id
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building_id integer REFERENCES buildings
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);
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CREATE INDEX IF NOT EXISTS log_timestamp_idx ON logs ( log_timestamp );
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CREATE INDEX IF NOT EXISTS log_user_idx ON logs ( user_id );
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CREATE INDEX IF NOT EXISTS log_building_idx ON logs ( building_id );
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ALTER TABLE buildings ADD COLUMN revision_id bigint REFERENCES logs ( log_id );
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