crud

lib/database/database.dart

@@ -22,55 +22,63 @@ 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 (await isDatabaseExists()) {
-    if (database.query(noteTable) != null) {
       print("Database already created");
+      deleteDatabase();
+      print("Database deleted");
+    }
 
-    }else{
+    await database.execute('''CREATE TABLE promemoria (
-      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
 );
     ''');
 
-      await database.execute('''CREATE TABLE note (
+    await database.execute('''CREATE TABLE note (
   id INTEGER PRIMARY KEY AUTOINCREMENT,
   title TEXT NOT NULL,
   creationDate TEXT NOT NULL,
   lastModificationDate TEXT,
+  arrayPromemoria TEXT,
   description TEXT
 );
     ''');
 
-      print("database created");
+    print("database created");
-    }
-
-
     await fillDemoData(database, version);
   }
 
   Future fillDemoData(Database database, int version) async {
 
-    print("boh speriamo funzioni");
+    var nota = Note();
-    // Add some fake accounts
+    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('''
@@ -78,6 +86,7 @@ class NoteDatabase {
     title,
     creationDate,
     lastModificationDate,
+    arrayPromemoria,
     description
   ) VALUES (
     'Nota 2',
@@ -87,12 +96,12 @@ class NoteDatabase {
   )
 ''');
 
-
     await database.execute('''
   INSERT INTO note (
     title,
     creationDate,
     lastModificationDate,
+    arrayPromemoria,
     description
   ) VALUES (
     'Nota 2',
@@ -109,6 +118,7 @@ class NoteDatabase {
     creationDate,
     lastModificationDate,
     expirationDate,
+    arrayPromemoria,
     description,
     priority,
     color
@@ -130,6 +140,7 @@ class NoteDatabase {
     creationDate,
     lastModificationDate,
     expirationDate,
+    arrayPromemoria,
     description,
     priority,
     color
@@ -159,6 +170,27 @@ 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<List<Map>> selectAllPromemoria() async {
     final db = await database;
 
@@ -167,15 +199,61 @@ class NoteDatabase {
     return maps;
   }
 
-  Future close() async {
+  Future<List<Map>> selectAllNotes() async {
-    final database = await instance.database;
+    final db = await database;
-    database.close();
+
+    final List<Map<String, dynamic>> maps = await db.query(noteTable);
+
+    return maps;
   }
 
-  // WARNING: FOR DEV/TEST PURPOSES ONLY!!
+  Future<void> createNote(Database database, Note note) async {
-  Future<void> deleteDatabase() async {
+    await database.insert(
-    final databasePath = await getDatabasesPath();
+      'note',
-    final path = join(databasePath, 'note.db');
+      note.toMap(),
-    databaseFactory.deleteDatabase(path);
+      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()]);
   }
 }

lib/main.dart

@@ -3,4 +3,5 @@ import 'myApp.dart';
 
 void main() {
   runApp(MyApp());
+  print("App started");
 }

lib/model/note.dart

@@ -9,4 +9,63 @@ class Note extends BaseEntity {
   static String lastModificationDate = BaseEntity.getLastEditDate;
   static String arrayPromemoria = '';
   static String description = '';
+
+  Map<String, dynamic> toMap() {
+    return {
+      'id': id,
+      'title': title,
+      'creationDate': creationDate,
+      'lastModificationDate': lastModificationDate,
+      'arrayPromemoria': arrayPromemoria,
+      'description': description
+    };
+  }
+
+  String getId() {
+    return id;
+  }
+
+  void setId(String id) {
+    id = id;
+  }
+
+  String getTitle() {
+    return title;
+  }
+
+  void setTitle(String title) {
+    title = title;
+  }
+
+  String getCreationDate() {
+    return creationDate;
+  }
+
+  void setCreationDate(String creationDate) {
+    creationDate = creationDate;
+  }
+
+  String getLastModificationDate() {
+    return lastModificationDate;
+  }
+
+  void setLastModificationDate(String lastModificationDate) {
+    lastModificationDate = lastModificationDate;
+  }
+
+  String getArrayPromemoria() {
+    return arrayPromemoria;
+  }
+
+  void setArrayPromemoria(String arrayPromemoria) {
+    arrayPromemoria = arrayPromemoria;
+  }
+
+  String getDescription() {
+    return description;
+  }
+
+  void setDescription(String description) {
+    description = description;
+  }
 }

lib/model/promemoria.dart

@@ -13,6 +13,85 @@ class Promemoria extends BaseEntity {
   static String arrayPromemoria = '';
   static String description = '';
   static Priority priority = Priority.none;
-
   static Color color = Color.none;
+
+  Map<String, dynamic> toMap() {
+    return {
+      'id': id,
+      'title': title,
+      'creationDate': creationDate,
+      'lastModificationDate': lastModificationDate,
+      'expirationDate': expirationDate,
+      'arrayPromemoria': arrayPromemoria,
+      'description': description,
+      'priority': priority,
+      'color': color,
+    };
+  }
+
+  String getId(){
+    return id;
+  }
+
+  void setId(String id) {
+    id = id;
+  }
+
+  String getTitle() {
+    return title;
+  }
+
+  void setTitle(String title) {
+    title = title;
+  }
+
+  String getCreationDate() {
+    return creationDate;
+  }
+
+  void setCreationDate(String creationDate) {
+    creationDate = creationDate;
+  }
+
+  String getLastModificationDate() {
+    return lastModificationDate;
+  }
+
+  void setLastModificationDate(String lastModificationDate) {
+    lastModificationDate = lastModificationDate;
+  }
+
+  String getExpirationDate() {
+    return expirationDate;
+  }
+
+  void setExpirationDate(String expirationDate) {
+    expirationDate = expirationDate;
+  }
+
+  String getArrayPromemoria() {
+    return arrayPromemoria;
+  }
+
+  void setArrayPromemoria(String arrayPromemoria) {
+    arrayPromemoria = arrayPromemoria;
+  }
+
+  String getDescription() {
+    return description;
+  }
+
+  void setDescription(String description) {
+    description = description;
+  }
+
+  Priority getPriority() {
+    return priority;
+  }
+
+  void setPriority(Priority priority) {
+    priority = priority;
+  }
+
+
 }

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(