Move database to seperate package

mobile/lib/backend.dart

@@ -6,11 +6,11 @@ import 'package:flutter/widgets.dart';
 import 'package:moor/isolate.dart';
 import 'package:moor/moor.dart';
 import 'package:moor_ffi/moor_ffi.dart';
+import 'package:musicus_database/musicus_database.dart';
 import 'package:path/path.dart' as p;
 import 'package:path_provider/path_provider.dart' as pp;
 import 'package:shared_preferences/shared_preferences.dart';
 
-import 'database.dart';
 import 'music_library.dart';
 import 'player.dart';
 

mobile/lib/database.dart

@@ -1,102 +0,0 @@
-import 'dart:math';
-
-import 'package:moor/moor.dart';
-
-part 'database.g.dart';
-
-final _random = Random(DateTime.now().millisecondsSinceEpoch);
-int generateId() => _random.nextInt(0xFFFFFFFF);
-
-class WorkModel {
-  final Work work;
-  final List<int> instrumentIds;
-
-  WorkModel({
-    @required this.work,
-    @required this.instrumentIds,
-  });
-}
-
-class PerformanceModel {
-  final Person person;
-  final Ensemble ensemble;
-  final Instrument role;
-
-  PerformanceModel({
-    this.person,
-    this.ensemble,
-    this.role,
-  });
-}
-
-@UseMoor(
-  include: {
-    'database.moor',
-  },
-)
-class Database extends _$Database {  
-  Database.connect(DatabaseConnection connection) : super.connect(connection);
-
-  @override
-  int get schemaVersion => 1;
-
-  @override
-  MigrationStrategy get migration => MigrationStrategy(
-        beforeOpen: (details) async {
-          await customStatement('PRAGMA foreign_keys = ON');
-        },
-      );
-
-  Future<void> updatePerson(Person person) async {
-    await into(persons).insert(person, orReplace: true);
-  }
-
-  Future<void> updateInstrument(Instrument instrument) async {
-    await into(instruments).insert(instrument, orReplace: true);
-  }
-
-  Future<void> updateWork(WorkModel model, List<WorkModel> parts) async {
-    await transaction(() async {
-      final workId = model.work.id;
-      await (delete(works)..where((w) => w.id.equals(workId))).go();
-      await (delete(works)..where((w) => w.partOf.equals(workId))).go();
-
-      Future<void> insertWork(WorkModel model) async {
-        await into(works).insert(model.work);
-        await batch((b) => b.insertAll(
-            instrumentations,
-            model.instrumentIds
-                .map((id) =>
-                    Instrumentation(work: model.work.id, instrument: id))
-                .toList()));
-      }
-
-      await insertWork(model);
-      for (final part in parts) {
-        await insertWork(part);
-      }
-    });
-  }
-
-  Future<void> updateEnsemble(Ensemble ensemble) async {
-    await into(ensembles).insert(ensemble, orReplace: true);
-  }
-
-  Future<void> updateRecording(
-      Recording recording, List<PerformanceModel> models) async {
-    await transaction(() async {
-      await (delete(performances)
-            ..where((p) => p.recording.equals(recording.id)))
-          .go();
-      await into(recordings).insert(recording, orReplace: true);
-      for (final model in models) {
-        await into(performances).insert(Performance(
-          recording: recording.id,
-          person: model.person?.id,
-          ensemble: model.ensemble?.id,
-          role: model.role?.id,
-        ));
-      }
-    });
-  }
-}

mobile/lib/database.moor

@@ -1,91 +0,0 @@
-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
-);
-
-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),
-    comment TEXT NOT NULL
-);
-
-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;

mobile/lib/editors/ensemble.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:musicus_database/musicus_database.dart';
 
 import '../backend.dart';
-import '../database.dart';
 
 class EnsembleEditor extends StatefulWidget {
   final Ensemble ensemble;

mobile/lib/editors/instrument.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:musicus_database/musicus_database.dart';
 
 import '../backend.dart';
-import '../database.dart';
 
 class InstrumentEditor extends StatefulWidget {
   final Instrument instrument;

mobile/lib/editors/person.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:musicus_database/musicus_database.dart';
 
 import '../backend.dart';
-import '../database.dart';
 
 class PersonEditor extends StatefulWidget {
   final Person person;

mobile/lib/editors/recording.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:musicus_database/musicus_database.dart';
 
 import '../backend.dart';
-import '../database.dart';
 import '../selectors/performer.dart';
 import '../selectors/work.dart';
 import '../widgets/texts.dart';

mobile/lib/editors/tracks.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:musicus_database/musicus_database.dart';
 
 import '../backend.dart';
-import '../database.dart';
 import '../music_library.dart';
 import '../selectors/files.dart';
 import '../selectors/recording.dart';

mobile/lib/editors/work.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:musicus_database/musicus_database.dart';
 
 import '../backend.dart';
-import '../database.dart';
 import '../selectors/instruments.dart';
 import '../selectors/person.dart';
 

mobile/lib/screens/home.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:musicus_database/musicus_database.dart';
 
 import '../backend.dart';
-import '../database.dart';
 import '../editors/tracks.dart';
 
 import 'person.dart';

mobile/lib/screens/person.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:musicus_database/musicus_database.dart';
 
 import '../backend.dart';
-import '../database.dart';
 import '../editors/person.dart';
 
 import 'work.dart';

mobile/lib/screens/program.dart

@@ -1,9 +1,9 @@
 import 'dart:async';
 
 import 'package:flutter/material.dart';
+import 'package:musicus_database/musicus_database.dart';
 
 import '../backend.dart';
-import '../database.dart';
 import '../music_library.dart';
 import '../widgets/play_pause_button.dart';
 import '../widgets/recording_tile.dart';

mobile/lib/screens/work.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:musicus_database/musicus_database.dart';
 
 import '../backend.dart';
-import '../database.dart';
 import '../editors/work.dart';
 import '../widgets/texts.dart';
 

mobile/lib/selectors/instruments.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:musicus_database/musicus_database.dart';
 
 import '../backend.dart';
-import '../database.dart';
 import '../editors/instrument.dart';
 
 class InstrumentsSelector extends StatefulWidget {

mobile/lib/selectors/performer.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:musicus_database/musicus_database.dart';
 
 import '../backend.dart';
-import '../database.dart';
 import '../editors/ensemble.dart';
 import '../editors/person.dart';
 

mobile/lib/selectors/person.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:musicus_database/musicus_database.dart';
 
 import '../backend.dart';
-import '../database.dart';
 import '../editors/person.dart';
 
 class PersonsSelector extends StatelessWidget {

mobile/lib/selectors/recording.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:musicus_database/musicus_database.dart';
 
 import '../backend.dart';
-import '../database.dart';
 import '../editors/recording.dart';
 import '../widgets/texts.dart';
 import '../widgets/works_by_composer.dart';

mobile/lib/selectors/work.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:musicus_database/musicus_database.dart';
 
 import '../backend.dart';
-import '../database.dart';
 import '../editors/work.dart';
 
 // TODO: Lazy load works and/or optimize queries.

mobile/lib/widgets/player_bar.dart

@@ -1,5 +1,5 @@
 import 'package:flutter/material.dart';
-import 'package:musicus/database.dart';
+import 'package:musicus_database/musicus_database.dart';
 
 import '../backend.dart';
 import '../music_library.dart';

mobile/lib/widgets/recording_tile.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:musicus_database/musicus_database.dart';
 
 import '../backend.dart';
-import '../database.dart';
 
 import 'texts.dart';
 

mobile/lib/widgets/texts.dart

@@ -1,9 +1,9 @@
 import 'dart:async';
 
 import 'package:flutter/material.dart';
+import 'package:musicus_database/musicus_database.dart';
 
 import '../backend.dart';
-import '../database.dart';
 
 class EnsembleText extends StatelessWidget {
   final int ensembleId;

mobile/lib/widgets/works_by_composer.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:musicus_database/musicus_database.dart';
 
 import '../backend.dart';
-import '../database.dart';
 
 class WorksByComposer extends StatelessWidget {
   final int personId;