feat: introduce bin/add-constraints.sh

bin/add-constraints.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+#
+echo "Started..."
+#Started...
+#
+# special variable $# is the number of arguments
+if [ $# -lt 3 ] ; then
+    echo 'Call ./<script> <db name> <db user> <db schema>'
+    exit 1
+fi
+#
+DB_NAME="$1"
+echo "DB_NAME: ${DB_NAME}"
+DB_USER="$2"
+echo "DB_USER: ${DB_USER}"
+DB_SCHEMA="$3"
+echo "DB_SCHEMA: ${DB_SCHEMA}"
+#
+psql -h localhost -p 5432 -U $DB_USER -f ./sql/add-constraints.sql -d $DB_NAME -v schema=$DB_SCHEMA
+#
+echo "Done."
+#done.

sql/add-constraints.sql

@@ -0,0 +1,17 @@
+-- colon before variable: for a prepared statement using named placeholders, this will be a parameter name of the form :name
+
+CREATE SCHEMA IF NOT EXISTS :schema;
+SET search_path to :schema, public;
+
+ALTER TABLE :schema.route_bundles ALTER COLUMN long_name SET NOT NULL;
+
+ALTER TABLE :schema.routes ALTER COLUMN short_name SET NOT NULL;
+ALTER TABLE :schema.routes ALTER COLUMN route_from SET DEFAULT NULL;
+ALTER TABLE :schema.routes ALTER COLUMN route_to SET DEFAULT NULL;
+
+ALTER TABLE :schema.service_levels ALTER COLUMN short_name SET NOT NULL;
+ALTER TABLE :schema.service_levels ALTER COLUMN long_name SET DEFAULT NULL;
+
+ALTER TABLE :schema.services ADD FOREIGN KEY(route_id) REFERENCES :schema.routes(id);
+ALTER TABLE :schema.services ADD FOREIGN KEY(route_bundle_id) REFERENCES :schema.route_bundles(id);
+ALTER TABLE :schema.services ADD FOREIGN KEY(service_level_id) REFERENCES :schema.service_levels(id);

sql/create-schema.sql

@@ -4,56 +4,44 @@ CREATE SCHEMA IF NOT EXISTS :schema;
 SET search_path to :schema, public;
 
 --CREATE
-DROP TABLE IF EXISTS :schema.service_levels;
-
-CREATE TABLE IF NOT EXISTS :schema.service_levels
-(
-service_level_id SMALLINT PRIMARY KEY GENERATED ALWAYS AS IDENTITY,
-service_level_short_name VARCHAR(8),
-service_level_long_name VARCHAR(64)
-);
-
 DROP TABLE IF EXISTS :schema.route_bundles;
 
 CREATE TABLE IF NOT EXISTS :schema.route_bundles
 (
-route_bundle_id SMALLINT PRIMARY KEY GENERATED ALWAYS AS IDENTITY,
-route_bundle_name VARCHAR(64)
+id SMALLINT PRIMARY KEY GENERATED ALWAYS AS IDENTITY,
+long_name VARCHAR(64)
 );
 
 DROP TABLE IF EXISTS :schema.routes;
 
 CREATE TABLE IF NOT EXISTS :schema.routes
 (
-route_id SMALLINT PRIMARY KEY GENERATED ALWAYS AS IDENTITY,
-route_short_name TEXT,
+id SMALLINT PRIMARY KEY GENERATED ALWAYS AS IDENTITY,
+short_name TEXT,
 route_from TEXT,
 route_to TEXT
 );
 
+DROP TABLE IF EXISTS :schema.service_levels;
+
+CREATE TABLE IF NOT EXISTS :schema.service_levels
+(
+id SMALLINT PRIMARY KEY GENERATED ALWAYS AS IDENTITY,
+short_name VARCHAR(8),
+long_name VARCHAR(64)
+);
+
 DROP TABLE IF EXISTS :schema.services;
 
 CREATE TABLE IF NOT EXISTS :schema.services
 (
-service_id SMALLINT PRIMARY KEY GENERATED ALWAYS AS IDENTITY,
-service_route_bundle SMALLINT,
-service_route_id SMALLINT,
+id SMALLINT PRIMARY KEY GENERATED ALWAYS AS IDENTITY,
+route_id SMALLINT,
+route_bundle_id SMALLINT,
 service_level_id SMALLINT
 );
 
---INSERT
-INSERT INTO :schema.service_levels(service_level_short_name, service_level_long_name) VALUES
-('1+', '1+'),
-('1', '1'),
-('2', '2'),
-('3', '3'),
-('SV', 'Stadtverkehr'),
-('NV', 'Nachtverkehr'),
-('BB', 'Buergerbus'),
-('ALT', 'AnrufLinienTaxi');
---TODO Adjust sequence counter after insert query!
-
-INSERT INTO :schema.route_bundles(route_bundle_name) VALUES
+INSERT INTO :schema.route_bundles(long_name) VALUES
 ('Bremen Bus'),
 ('Bremen Straßenbahn'),
 ('Bremerhaven'),
@@ -62,7 +50,7 @@ INSERT INTO :schema.route_bundles(route_bundle_name) VALUES
 ('LK Ammerland Ost');
 --TODO Adjust sequence counter after insert query!
 
-INSERT INTO :schema.routes(route_short_name, route_from, route_to) VALUES
+INSERT INTO :schema.routes(short_name, route_from, route_to) VALUES
 ('1', 'Huchting', 'Bf Mahndort'),
 ('1S/E', 'Osterholz', 'Kirchbachstrasse'),
 ('2', 'Groepelingen', 'Sebalsbrueck'),
@@ -77,3 +65,31 @@ INSERT INTO :schema.routes(route_short_name, route_from, route_to) VALUES
 ('331', 'Conneforde', 'Wiefelstede'),
 ('347', 'Rastede', 'Rastede');
 --TODO Adjust sequence counter after insert query!
+
+
+--INSERT
+INSERT INTO :schema.service_levels(short_name, long_name) VALUES
+('1+', '1+'),
+('1', '1'),
+('2', '2'),
+('3', '3'),
+('SV', 'Stadtverkehr'),
+('NV', 'Nachtverkehr'),
+('BB', 'Buergerbus'),
+('ALT', 'AnrufLinienTaxi');
+--TODO Adjust sequence counter after insert query!
+INSERT INTO :schema.services(route_id, route_bundle_id, service_level_id) VALUES
+(1, 2, 5),
+(2, 2, 5),
+(3, 2, 5),
+(4, 1, 5),
+(5, 1, 5),
+(6, 3, 5),
+(7, 3, 5),
+(8, 3, 6),
+(9, 3, 8),
+(10, 5, 1),
+(11, 5, 3),
+(12, 5, 4),
+(13, 6, 7);
+--TODO Adjust sequence counter after insert query!