310 lines
15 KiB
MySQL
310 lines
15 KiB
MySQL
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DROP SCHEMA darwindb CASCADE;
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CREATE SCHEMA darwindb;
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SET search_path TO darwindb;
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CREATE TABLE train_services (
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id BIGSERIAL NOT NULL PRIMARY KEY,
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rid VARCHAR(16) NOT NULL UNIQUE,
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uid VARCHAR(6) NOT NULL,
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rsid VARCHAR(8) NOT NULL,
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headcode VARCHAR(4) NOT NULL,
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scheduled_start_date DATE NOT NULL,
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effective_start_time TIMESTAMPTZ NULL, /* computed for ease of use */
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train_operator VARCHAR(2) NOT NULL,
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status VARCHAR(2) NOT NULL DEFAULT 'P',
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train_category VARCHAR(2) NOT NULL DEFAULT 'OO',
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is_passenger_svc BOOLEAN NOT NULL DEFAULT TRUE,
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is_charter BOOLEAN NOT NULL DEFAULT FALSE,
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is_q_train BOOLEAN NOT NULL DEFAULT FALSE,
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delay_reason_code VARCHAR NULL,
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delay_reason_tiploc VARCHAR NULL,
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delay_reason_tiploc_near BOOLEAN NULL,
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cancellation_reason_code VARCHAR NULL,
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cancellation_reason_tiploc VARCHAR NULL,
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cancellation_reason_tiploc_near BOOLEAN NULL,
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active BOOLEAN NOT NULL DEFAULT TRUE,
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deleted BOOLEAN NOT NULL DEFAULT FALSE,
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cancelled BOOLEAN NOT NULL DEFAULT FALSE
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);
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CREATE INDEX train_services_by_ssd_uid ON train_services (scheduled_start_date, uid);
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CREATE INDEX train_services_by_ssd_rsid ON train_services (scheduled_start_date, rsid);
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CREATE INDEX train_services_by_ssd_headcode ON train_services (scheduled_start_date, headcode);
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CREATE TYPE timestamp_type AS ENUM ('est', 'act');
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CREATE TYPE platform_source AS ENUM ('planned', 'automatic', 'manual');
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CREATE TYPE calling_point_type AS ENUM ('OR', 'OPOR', 'IP', 'OPIP', 'PP', 'DT', 'OPDT');
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CREATE TABLE train_locations (
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id BIGSERIAL NOT NULL PRIMARY KEY,
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tsid BIGINT NOT NULL REFERENCES train_services (id) ON DELETE CASCADE,
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rid VARCHAR(16) NOT NULL REFERENCES train_services (rid) ON DELETE CASCADE,
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tiploc VARCHAR(7) NOT NULL,
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-- From Darwin Schedule
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calling_point calling_point_type NULL,
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schedule_public_arrival TIMESTAMPTZ NULL,
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schedule_working_arrival TIMESTAMPTZ NULL,
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schedule_public_departure TIMESTAMPTZ NULL,
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schedule_working_departure TIMESTAMPTZ NULL,
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-- No concept of a "public pass"
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schedule_working_pass TIMESTAMPTZ NULL,
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schedule_route_delay SMALLINT NULL,
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schedule_activity VARCHAR(12) NULL,
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schedule_planned_activity VARCHAR(12) NULL,
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schedule_cancelled BOOLEAN NOT NULL DEFAULT false,
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schedule_false_destination_tiploc VARCHAR(7) NULL,
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schedule_platform VARCHAR(5) NULL,
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-- Indicates whether this appeared in a schedule we've seen previously, but not in the latest version.
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active_in_schedule BOOLEAN NOT NULL DEFAULT true,
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-- From Darwin TrainStatus
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service_suppressed BOOLEAN NOT NULL DEFAULT false,
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platform VARCHAR(5) NULL,
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platform_suppressed BOOLEAN NOT NULL DEFAULT false,
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cis_platform_suppression BOOLEAN NOT NULL DEFAULT false,
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platform_source platform_source NOT NULL DEFAULT 'planned',
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platform_confirmed BOOLEAN NOT NULL DEFAULT false,
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train_length SMALLINT NULL,
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-- estimated, working, actual
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-- arrival, departure, pass
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estimated_arrival TIMESTAMPTZ NULL,
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working_estimated_arrival TIMESTAMPTZ NULL,
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actual_arrival TIMESTAMPTZ NULL,
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arrival_data JSONB NULL,
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estimated_departure TIMESTAMPTZ NULL,
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working_estimated_departure TIMESTAMPTZ NULL,
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actual_departure TIMESTAMPTZ NULL,
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departure_data JSONB NULL,
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estimated_pass TIMESTAMPTZ NULL,
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working_estimated_pass TIMESTAMPTZ NULL,
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actual_pass TIMESTAMPTZ NULL,
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pass_data JSONB NULL,
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CONSTRAINT train_locations_tiploc_wtd UNIQUE (tsid, tiploc, schedule_working_departure),
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CONSTRAINT train_locations_tiploc_ptd UNIQUE (tsid, tiploc, schedule_public_departure),
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CONSTRAINT train_locations_tiploc_wta UNIQUE (tsid, tiploc, schedule_working_arrival),
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CONSTRAINT train_locations_tiploc_pta UNIQUE (tsid, tiploc, schedule_public_arrival),
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CONSTRAINT train_locations_tiploc_wtp UNIQUE (tsid, tiploc, schedule_working_pass)
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);
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CREATE INDEX train_locations_by_tsid ON train_locations (tsid, tiploc);
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CREATE INDEX train_locations_by_rid ON train_locations (rid, tiploc);
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CREATE FUNCTION train_locations_upsert_from_schedule (
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p_tsid BIGINT,
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p_rid VARCHAR(16),
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p_tiploc VARCHAR(7),
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p_calling_point calling_point_type,
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p_schedule_public_arrival TIMESTAMPTZ,
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p_schedule_working_arrival TIMESTAMPTZ,
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p_schedule_public_departure TIMESTAMPTZ,
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p_schedule_working_departure TIMESTAMPTZ,
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p_schedule_working_pass TIMESTAMPTZ,
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p_schedule_route_delay SMALLINT,
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p_schedule_activity VARCHAR(12),
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p_schedule_planned_activity VARCHAR(12),
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p_schedule_cancelled BOOLEAN,
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p_schedule_false_destination_tiploc VARCHAR(7),
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p_schedule_platform VARCHAR(3)) RETURNS BIGINT AS
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$$
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-- There is one problem with this function, which is why it's not generic and using ON CONFLICT DO UPDATE:
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-- if we notice that one particular constraint has caused a problem, so we do an update, and _that_ update causes a problem
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-- then we're stuck; in this instance we'll just explode.
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--
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-- Imagine the following (unlikely) case:
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-- Old schedule: (tsid, tiploc, wtd, ptd):
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-- (1, "AAAAAA", 01:00, 01:00)
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-- (1, "AAAAAA", 01:10, 01:10)
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-- If we then try to update with a new schedule location (1, "AAAAAA", 01:00, 01:10), we cause a conflict.
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BEGIN
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LOOP
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DECLARE v_locid BIGINT;
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DECLARE v_constraint_name TEXT;
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BEGIN
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INSERT INTO train_locations
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(tsid, rid, tiploc, calling_point,
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schedule_public_arrival, schedule_working_arrival,
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schedule_public_departure, schedule_working_departure,
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schedule_working_pass,
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schedule_route_delay, schedule_activity, schedule_planned_activity, schedule_cancelled,
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schedule_false_destination_tiploc, schedule_platform)
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VALUES
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(p_tsid, p_rid, p_tiploc, p_calling_point,
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p_schedule_public_arrival, p_schedule_working_arrival,
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p_schedule_public_departure, p_schedule_working_departure,
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p_schedule_working_pass,
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p_schedule_route_delay, p_schedule_activity, p_schedule_planned_activity, p_schedule_cancelled,
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p_schedule_false_destination_tiploc, p_schedule_platform)
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RETURNING id INTO v_locid;
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RETURN v_locid;
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EXCEPTION WHEN unique_violation THEN
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-- Work out which constraint caused this.
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GET STACKED DIAGNOSTICS v_constraint_name = CONSTRAINT_NAME;
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CASE v_constraint_name
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WHEN 'train_locations_tiploc_wtd' THEN
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UPDATE train_locations SET
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calling_point=p_calling_point,
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schedule_public_arrival=p_schedule_public_arrival, schedule_working_arrival=p_schedule_working_arrival,
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schedule_public_departure=p_schedule_public_departure, /* wtd */
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schedule_working_pass=p_schedule_working_pass,
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schedule_route_delay=p_schedule_route_delay, schedule_activity=p_schedule_activity, schedule_planned_activity=p_schedule_planned_activity, schedule_cancelled=p_schedule_cancelled,
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schedule_false_destination_tiploc=p_schedule_false_destination_tiploc, schedule_platform=p_schedule_platform,
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active_in_schedule=true
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WHERE
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tsid=p_tsid AND tiploc=p_tiploc AND schedule_working_departure=p_schedule_working_departure
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RETURNING id INTO v_locid;
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IF found THEN RETURN v_locid; END IF;
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-- We didn't find it? Try again.
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WHEN 'train_locations_tiploc_ptd' THEN
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UPDATE train_locations SET
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calling_point=p_calling_point,
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schedule_public_arrival=p_schedule_public_arrival, schedule_working_arrival=p_schedule_working_arrival,
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/* ptd */ schedule_working_departure=p_schedule_working_departure,
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schedule_working_pass=p_schedule_working_pass,
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schedule_route_delay=p_schedule_route_delay, schedule_activity=p_schedule_activity, schedule_planned_activity=p_schedule_planned_activity, schedule_cancelled=p_schedule_cancelled,
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schedule_false_destination_tiploc=p_schedule_false_destination_tiploc, schedule_platform=p_schedule_platform,
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active_in_schedule=true
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WHERE
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tsid=p_tsid AND tiploc=p_tiploc AND schedule_public_departure=p_schedule_public_departure
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RETURNING id INTO v_locid;
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IF found THEN RETURN v_locid; END IF;
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-- We didn't find it? Try again.
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WHEN 'train_locations_tiploc_wta' THEN
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UPDATE train_locations SET
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calling_point=p_calling_point,
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schedule_public_arrival=p_schedule_public_arrival, /* wta */
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schedule_public_departure=p_schedule_public_departure, schedule_working_departure=p_schedule_working_departure,
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schedule_working_pass=p_schedule_working_pass,
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schedule_route_delay=p_schedule_route_delay, schedule_activity=p_schedule_activity, schedule_planned_activity=p_schedule_planned_activity, schedule_cancelled=p_schedule_cancelled,
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schedule_false_destination_tiploc=p_schedule_false_destination_tiploc, schedule_platform=p_schedule_platform,
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active_in_schedule=true
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WHERE
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tsid=p_tsid AND tiploc=p_tiploc AND schedule_working_arrival=p_schedule_working_arrival
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RETURNING id INTO v_locid;
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IF found THEN RETURN v_locid; END IF;
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-- We didn't find it? Try again.
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WHEN 'train_locations_tiploc_pta' THEN
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UPDATE train_locations SET
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calling_point=p_calling_point,
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/* pta */ schedule_working_arrival=p_schedule_working_arrival,
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schedule_public_departure=p_schedule_public_departure, schedule_working_departure=p_schedule_working_departure,
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schedule_working_pass=p_schedule_working_pass,
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schedule_route_delay=p_schedule_route_delay, schedule_activity=p_schedule_activity, schedule_planned_activity=p_schedule_planned_activity, schedule_cancelled=p_schedule_cancelled,
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schedule_false_destination_tiploc=p_schedule_false_destination_tiploc, schedule_platform=p_schedule_platform,
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active_in_schedule=true
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WHERE
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tsid=p_tsid AND tiploc=p_tiploc AND schedule_public_arrival=p_schedule_public_arrival
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RETURNING id INTO v_locid;
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IF found THEN RETURN v_locid; END IF;
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-- We didn't find it? Try again.
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WHEN 'train_locations_tiploc_wtp' THEN
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UPDATE train_locations SET
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calling_point=p_calling_point,
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schedule_public_arrival=p_schedule_public_arrival, schedule_working_arrival=p_schedule_working_arrival,
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schedule_public_departure=p_schedule_public_departure, schedule_working_departure=p_schedule_working_departure,
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/* wtp */
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schedule_route_delay=p_schedule_route_delay, schedule_activity=p_schedule_activity, schedule_planned_activity=p_schedule_planned_activity, schedule_cancelled=p_schedule_cancelled,
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schedule_false_destination_tiploc=p_schedule_false_destination_tiploc, schedule_platform=p_schedule_platform,
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active_in_schedule=true
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WHERE
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tsid=p_tsid AND tiploc=p_tiploc AND schedule_working_pass=p_schedule_working_pass
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RETURNING id INTO v_locid;
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IF found THEN RETURN v_locid; END IF;
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-- We didn't find it? Try again.
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WHEN 'train_locations_tiploc_wtd' THEN
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UPDATE train_locations SET
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calling_point=p_calling_point,
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schedule_public_arrival=p_schedule_public_arrival, schedule_working_arrival=p_schedule_working_arrival,
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schedule_public_departure=p_schedule_public_departure, schedule_working_departure=p_schedule_working_departure,
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schedule_working_pass=p_schedule_working_pass,
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schedule_route_delay=p_schedule_route_delay, schedule_activity=p_schedule_activity, schedule_planned_activity=p_schedule_planned_activity, schedule_cancelled=p_schedule_cancelled,
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schedule_false_destination_tiploc=p_schedule_false_destination_tiploc, schedule_platform=p_schedule_platform,
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active_in_schedule=true
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WHERE
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tsid=p_tsid AND tiploc=p_tiploc AND schedule_working_departure=p_schedule_working_departure
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RETURNING id INTO v_locid;
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IF found THEN RETURN v_locid; END IF;
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-- We didn't find it? Try again.
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ELSE
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RAISE; -- don't know how to deal with this particular constraint.
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END CASE;
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END;
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END LOOP;
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END;
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$$
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LANGUAGE plpgsql;
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CREATE TABLE train_alerts (
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id BIGSERIAL NOT NULL PRIMARY KEY,
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alert_id BIGINT NOT NULL,
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source VARCHAR(10) NOT NULL,
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alert_text TEXT NOT NULL,
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audience VARCHAR(15) NOT NULL,
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alert_type VARCHAR(15) NOT NULL,
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send_alert_by_sms BOOLEAN NOT NULL,
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send_alert_by_email BOOLEAN NOT NULL,
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send_alert_by_twitter BOOLEAN NOT NULL
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);
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CREATE TABLE train_alert_services (
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id BIGSERIAL NOT NULL PRIMARY KEY,
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ta_id BIGINT NOT NULL REFERENCES train_alerts (id) ON DELETE CASCADE,
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service_id BIGINT NOT NULL REFERENCES train_services (id) ON DELETE CASCADE,
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crs VARCHAR(3) NULL,
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CONSTRAINT train_alert_services_by_service_id_crs UNIQUE (service_id, crs, ta_id)
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);
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CREATE TABLE ref_tocs (
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toc VARCHAR(2) PRIMARY KEY NOT NULL,
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name VARCHAR(256) NOT NULL,
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url VARCHAR(512) NULL
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);
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CREATE TABLE ref_locations (
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tiploc VARCHAR(7) PRIMARY KEY NOT NULL,
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name VARCHAR(30) NULL,
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override_name VARCHAR(30) NULL,
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crs VARCHAR(3) NULL,
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toc VARCHAR(2) NULL
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);
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CREATE INDEX ref_locations_by_crs ON ref_locations (crs);
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CREATE TABLE ref_cancel_reasons (
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code INT NOT NULL PRIMARY KEY,
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text VARCHAR(256) NOT NULL
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);
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CREATE TABLE ref_late_running_reasons (
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code INT NOT NULL PRIMARY KEY,
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text VARCHAR(256) NOT NULL
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);
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CREATE TABLE ref_via (
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id BIGSERIAL NOT NULL PRIMARY KEY,
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at_crs VARCHAR(3) NOT NULL,
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dest_tiploc VARCHAR(7) NOT NULL,
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loc1_tiploc VARCHAR(7) NOT NULL,
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loc2_tiploc VARCHAR(7) NOT NULL DEFAULT '',
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text VARCHAR(256) NOT NULL,
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CONSTRAINT ref_via_by_at_dest_loc1_loc2 UNIQUE (at_crs, dest_tiploc, loc1_tiploc, loc2_tiploc)
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);
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CREATE TABLE ref_cis (
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code VARCHAR(4) NOT NULL PRIMARY KEY,
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name VARCHAR(60) NOT NULL
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);
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