musicus_mobile/lib/database.moor
Elias Projahn 99e4711cfc Remove seperate role repesentation
The role and instrument tables have been merged into one (the instrument
table). There are not that many roles that aren't instruments and it is
much simpler to mange this way. The role editor and role selector have
been removed and the instrument related UI parts have been modified
accordingly.
2020-03-31 15:49:15 +02:00

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CREATE TABLE persons (
id INTEGER NOT NULL PRIMARY KEY,
first_name TEXT NOT NULL,
last_name TEXT NOT NULL
);
-- This represents real instruments as well as other roles that can be played
-- in a recording.
CREATE TABLE instruments (
id INTEGER NOT NULL PRIMARY KEY,
name TEXT NOT NULL
);
CREATE TABLE works (
id INTEGER NOT NULL PRIMARY KEY,
composer INTEGER REFERENCES persons(id),
title TEXT NOT NULL,
part_of INTEGER REFERENCES works(id) ON DELETE CASCADE,
part_index INTEGER,
part_level INTEGER
);
CREATE TABLE instrumentations (
work INTEGER NOT NULL REFERENCES works(id) ON DELETE CASCADE,
instrument INTEGER NOT NULL REFERENCES instruments(id) ON DELETE CASCADE
);
CREATE TABLE ensembles (
id INTEGER NOT NULL PRIMARY KEY,
name TEXT NOT NULL
);
CREATE TABLE recordings (
id INTEGER NOT NULL PRIMARY KEY,
work INTEGER REFERENCES works(id)
);
CREATE TABLE performances (
recording INTEGER NOT NULL REFERENCES recordings(id) ON DELETE CASCADE,
person INTEGER REFERENCES persons(id) ON DELETE CASCADE,
ensemble INTEGER REFERENCES ensembles(id) ON DELETE CASCADE,
role INTEGER REFERENCES instruments(id)
);
allPersons:
SELECT * FROM persons ORDER BY last_name;
personById:
SELECT * FROM persons WHERE id = :id LIMIT 1;
allInstruments:
SELECT * FROM instruments ORDER BY name;
instrumentById:
SELECT * FROM instruments WHERE id = :id LIMIT 1;
workById:
SELECT * FROM works WHERE id = :id LIMIT 1;
workParts:
SELECT * FROM works WHERE part_of = :id ORDER BY part_index;
-- TODO: Maybe optimize.
worksByComposer:
SELECT DISTINCT A.* FROM works A LEFT JOIN works B ON A.id = B.part_of
WHERE A.part_of IS NULL AND A.composer = :id OR B.composer = :id;
composersByWork:
SELECT DISTINCT persons.* FROM persons
JOIN works ON works.composer = persons.id
WHERE works.id = :id OR works.part_of = :id;
instrumentsByWork:
SELECT instruments.* FROM instrumentations
JOIN instruments ON instrumentations.instrument=instruments.id
WHERE instrumentations.work = :workId;
allEnsembles:
SELECT * FROM ensembles ORDER BY name;
ensembleById:
SELECT * FROM ensembles WHERE id = :id LIMIT 1;
recordingById:
SELECT * FROM recordings WHERE id = :id;
recordingsByWork:
SELECT * FROM recordings WHERE work = :id;
performancesByRecording:
SELECT * FROM performances WHERE recording = :id;