work in progress database

lib/database/database.dart

@@ -22,28 +22,26 @@ class NoteDatabase {
   }
 
   Future<Database> _initDB(String filePath) async {
-    // On Android, it is typically data/data//databases.
-    // On iOS and MacOS, it is the Documents directory.
     final databasePath = await getDatabasesPath();
-    // Directory databasePath = await getApplicationDocumentsDirectory();
 
     final path = join(databasePath, filePath);
     return await openDatabase(path, version: 1, onCreate: _createDB);
   }
 
   Future _createDB(Database database, int version) async {
-    //check if the database is created
-    if (database.query(noteTable) != null) {
+    if (await isDatabaseExists()) {
       print("Database already created");
+      deleteDatabase();
+      print("Database deleted");
+    }
 
-    }else{
-      print("demo data inserting");
     await database.execute('''CREATE TABLE promemoria (
   id INTEGER PRIMARY KEY AUTOINCREMENT,
   title TEXT NOT NULL,
   creationDate TEXT NOT NULL,
   lastModificationDate TEXT,
   expirationDate TEXT,
+  arrayPromemoria TEXT,
   description TEXT,
   priority TEXT,
   color TEXT
@@ -55,29 +53,24 @@ class NoteDatabase {
   title TEXT NOT NULL,
   creationDate TEXT NOT NULL,
   lastModificationDate TEXT,
+  arrayPromemoria TEXT,
   description TEXT
 );
     ''');
 
     print("database created");
-    }
-
-
     await fillDemoData(database, version);
   }
 
+
   Future fillDemoData(Database database, int version) async {
-    
-    print("boh speriamo funzioni");
-    // Add some fake accounts
-
-
     // Add fake categories
     await database.execute('''
   INSERT INTO note (
     title,
     creationDate,
     lastModificationDate,
+    arrayPromemoria,
     description
   ) VALUES (
     'Nota 2',
@@ -93,6 +86,7 @@ class NoteDatabase {
     title,
     creationDate,
     lastModificationDate,
+    arrayPromemoria,
     description
   ) VALUES (
     'Nota 2',
@@ -109,6 +103,7 @@ class NoteDatabase {
     creationDate,
     lastModificationDate,
     expirationDate,
+    arrayPromemoria,
     description,
     priority,
     color
@@ -130,6 +125,7 @@ class NoteDatabase {
     creationDate,
     lastModificationDate,
     expirationDate,
+    arrayPromemoria,
     description,
     priority,
     color
@@ -159,6 +155,50 @@ class NoteDatabase {
     }
   }
 
+  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<void> createNote(Database database, Note note) async {
+    await database.execute('''
+      INSERT INTO note (
+        title,
+        creationDate,
+        lastModificationDate,
+        arrayPromemoria,
+        description,
+
+      ) VALUES (
+        '$note.title}',
+        '$note.creationDate',
+        '$note.lastModificationDate',
+        '$note.arrayPromemoria.toString()',
+        '$note.description',
+      )
+    ''');
+
+    print('note $note.title inserted');
+  }
+
   Future<List<Map>> selectAllPromemoria() async {
     final db = await database;
 
@@ -167,15 +207,68 @@ class NoteDatabase {
     return maps;
   }
 
-  Future close() async {
-    final database = await instance.database;
-    database.close();
+
+  Future<List<Map>> selectAllNotes() async {
+    final db = await database;
+
+    final List<Map<String, dynamic>> maps = await db.query(noteTable);
+
+    return maps;
   }
 
-  // WARNING: FOR DEV/TEST PURPOSES ONLY!!
-  Future<void> deleteDatabase() async {
-    final databasePath = await getDatabasesPath();
-    final path = join(databasePath, 'note.db');
-    databaseFactory.deleteDatabase(path);
+
+  Future<void> createPromemoria(Database database,
+      Promemoria promemoria) async {
+    await database.execute('''
+      INSERT INTO promemoria (
+        title,
+        creationDate,
+        lastModificationDate,
+        expirationDate,
+        arrayPromemoria,
+        description,
+        priority,
+        color
+      ) VALUES (
+        '$promemoria.title',
+        '$promemoria.creationDate',
+        '$promemoria.lastModificationDate',
+        '$promemoria.expirationDate',
+        '$promemoria.arrayPromemoria.toString()',
+        '$promemoria.description',
+        '$promemoria.priority',
+        '$promemoria.color'
+      )
+    ''');
+
+    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, where: 'id = ?',
+      // Pass the Dog's id as a whereArg to prevent SQL injection.
+//  whereArgs: [dog.id],)
+//}
+
+
+}
+

lib/main.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
-import '../myApp.dart';
+import 'myApp.dart';
 
 void main() {
   runApp(MyApp());
+  print("App started");
 }

lib/myApp.dart

@@ -4,6 +4,7 @@ import 'navigation.dart';
 class MyApp extends StatelessWidget {
   const MyApp({ Key? key }) : super(key: key);
 
+
   @override
   Widget build(BuildContext context) {
     return MaterialApp(