work in progress database

lib/database/database.dart

@@ -1,17 +1,12 @@
 import 'package:path/path.dart';
 import 'package:sqflite/sqflite.dart';
 
-// Models
-import 'package:progetto_m335_flutter/model/note.dart';
 import 'package:progetto_m335_flutter/model/promemoria.dart';
 
 class NoteDatabase {
   static final NoteDatabase instance = NoteDatabase._init();
   static Database? _database;
 
-  // Zero args constructor needed to extend this class
-  NoteDatabase();
-
   NoteDatabase._init();
 
   Future<Database> get database async {
@@ -29,11 +24,6 @@ class NoteDatabase {
   }
 
   Future _createDB(Database database, int version) async {
-    if (await isDatabaseExists()) {
-      print("Database already created");
-      deleteDatabase();
-      print("Database deleted");
-    }
 
     await database.execute('''CREATE TABLE promemoria (
   id INTEGER PRIMARY KEY AUTOINCREMENT,
@@ -64,22 +54,6 @@ class NoteDatabase {
 
   Future fillDemoData(Database database, int version) async {
 
-    var nota = Note();
-    nota.setTitle("Nota 1");
-    nota.setCreationDate("2023-09-56");
-    nota.setLastModificationDate("2023-09-56");
-    nota.setArrayPromemoria("1,2,3,4,5");
-    nota.setDescription("Questo è un esempio di nota 1.");
-
-    await createNote(database, nota);
-
-    print(await readNote(1));
-
-    nota.setDescription("ciao");
-    await updateNote (nota);
-
-    print(await readNote (1));
-
     // Add fake categories
     await database.execute('''
   INSERT INTO note (
@@ -92,6 +66,7 @@ class NoteDatabase {
     'Nota 2',
     '2023-09-28',
     '2023-09-28',
+    '1,1',
     'Questo è un esempio di nota 2.'
   )
 ''');
@@ -107,11 +82,11 @@ class NoteDatabase {
     'Nota 2',
     '2023-09-28',
     '2023-09-28',
+    '1,1',
     'Questo è un esempio di nota 2.'
   )
 ''');
 
-    // Add currencies
     await database.execute('''
   INSERT INTO promemoria (
     title,
@@ -127,6 +102,7 @@ class NoteDatabase {
     '2023-09-27',
     '2023-09-27',
     '2023-10-05',
+    '2,1',
     'Questo è un esempio di promemoria 1.',
     'Alta',
     'Rosso'
@@ -149,6 +125,7 @@ class NoteDatabase {
     '2023-09-28',
     '2023-09-28',
     '2023-10-10',
+    '1,1',
     'Questo è un esempio di promemoria 2.',
     'Media',
     'Verde'
@@ -157,40 +134,6 @@ class NoteDatabase {
     print("Demo data inserted");
   }
 
-  Future clearDatabase() async {
-    try {
-      await _database?.transaction((txn) async {
-        var batch = txn.batch();
-        batch.delete(noteTable);
-        batch.delete(promemoriaTable);
-        await batch.commit();
-      });
-    } catch (error) {
-      throw Exception('DbBase.cleanDatabase: $error');
-    }
-  }
-
-  Future close() async {
-    final database = await instance.database;
-    database.close();
-  }
-
-  Future<void> deleteDatabase() async {
-    final databasePath = await getDatabasesPath();
-    final path = join(databasePath, 'note.db');
-    databaseFactory.deleteDatabase(path);
-  }
-
-  Future<bool> isDatabaseExists() async {
-    final databasePath = await getDatabasesPath();
-    final path = join(databasePath, 'note.db');
-    // Apre il database in modalità sola lettura.
-    Database database = await openDatabase(path, readOnly: true);
-
-    // Restituisce true se il database è stato aperto correttamente, altrimenti false.
-    return database.isOpen;
-  }
-
   Future<List<Map>> selectAllPromemoria() async {
     final db = await database;
 
@@ -199,61 +142,6 @@ class NoteDatabase {
     return maps;
   }
 
-  Future<List<Map>> selectAllNotes() async {
-    final db = await database;
 
-    final List<Map<String, dynamic>> maps = await db.query(noteTable);
 
-    return maps;
-  }
-
-  Future<void> createNote(Database database, Note note) async {
-    await database.insert(
-      'note',
-      note.toMap(),
-      conflictAlgorithm: ConflictAlgorithm.replace,
-    );
-
-    print('note $note.title inserted');
-  }
-
-  Future<void> createPromemoria(
-      Database database, Promemoria promemoria) async {
-    await database.insert(
-      'promemoria',
-      promemoria.toMap(),
-      conflictAlgorithm: ConflictAlgorithm.replace,
-    );
-
-    print('promemoria $promemoria.title inserted');
-  }
-
-  Future<Map<String, Object?>> readPromemoria(int id) async {
-    final db = await database;
-
-    final results = await db.query('SELECT * FROM note where id=$id');
-    return results.first;
-  }
-
-  Future<Map<String, Object?>> readNote(int id) async {
-    final db = await database;
-
-    final results = await db.query('SELECT * FROM promemoria where id=$id');
-
-    return results.first;
-  }
-
-  Future<void> updatePromemoria(Promemoria promemoria) async {
-    final db = await database;
-
-    await db.update('promemoria', promemoria.toMap(),
-        where: 'id = ?', whereArgs: [promemoria.getId()]);
-  }
-
-  Future<void> updateNote(Note note) async {
-    final db = await database;
-
-    await db.update('note', note.toMap(),
-        where: 'id = ?', whereArgs: [note.getId()]);
-  }
 }