crud

lib/database/database.dart

@@ -1,37 +1,259 @@
+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 Database{
+class NoteDatabase {
-  static final Database _instance = Database._init();
+  static final NoteDatabase instance = NoteDatabase._init();
   static Database? _database;
 
-  Database._init();
+  // Zero args constructor needed to extend this class
+  NoteDatabase();
+
+  NoteDatabase._init();
 
   Future<Database> get database async {
     if (_database != null) return _database!;
-    _database = await _initDB('database.db');
 
+    _database = await _initDB('note.db');
     return _database!;
   }
 
-  Future _createDB(Database database) async{
+  Future<Database> _initDB(String filePath) async {
-    const integerPrimaryKeyAutoincrement = 'INTEGER PRIMARY KEY AUTOINCREMENT';
+    final databasePath = await getDatabasesPath();
-    const textNotNull = 'TEXT NOT NULL';
-    const integerNotNull = 'INTEGER NOT NULL';
-    const integer = 'INTEGER';
-    const real = 'REAL';
-    const text = 'TEXT';
 
+    final path = join(databasePath, filePath);
+    return await openDatabase(path, version: 1, onCreate: _createDB);
+  }
 
+  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,
+  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 (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  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 {
+
+    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('''
-      CREATE TABLE $Note (
+  INSERT INTO note (
-        ${Note.id} $integerPrimaryKeyAutoincrement,
+    title,
-        
+    creationDate,
+    lastModificationDate,
+    arrayPromemoria,
+    description
+  ) VALUES (
+    'Nota 2',
+    '2023-09-28',
+    '2023-09-28',
+    'Questo è un esempio di nota 2.'
   )
 ''');
+
+    await database.execute('''
+  INSERT INTO note (
+    title,
+    creationDate,
+    lastModificationDate,
+    arrayPromemoria,
+    description
+  ) VALUES (
+    'Nota 2',
+    '2023-09-28',
+    '2023-09-28',
+    'Questo è un esempio di nota 2.'
+  )
+''');
+
+    // Add currencies
+    await database.execute('''
+  INSERT INTO promemoria (
+    title,
+    creationDate,
+    lastModificationDate,
+    expirationDate,
+    arrayPromemoria,
+    description,
+    priority,
+    color
+  ) VALUES (
+    'Promemoria 1',
+    '2023-09-27',
+    '2023-09-27',
+    '2023-10-05',
+    'Questo è un esempio di promemoria 1.',
+    'Alta',
+    'Rosso'
+  )
+''');
+
+    // Add fake budgets
+    await database.execute('''
+  INSERT INTO promemoria (
+    title,
+    creationDate,
+    lastModificationDate,
+    expirationDate,
+    arrayPromemoria,
+    description,
+    priority,
+    color
+  ) VALUES (
+    'Promemoria 2',
+    '2023-09-28',
+    '2023-09-28',
+    '2023-10-10',
+    'Questo è un esempio di promemoria 2.',
+    'Media',
+    'Verde'
+  )
+''');
+    print("Demo data inserted");
   }
 
-  execute(String s) {
+  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;
+
+    final List<Map<String, dynamic>> maps = await db.query(promemoriaTable);
+
+    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()]);
   }
 }

lib/main.dart

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

lib/model/note.dart

@@ -7,5 +7,65 @@ class Note extends BaseEntity {
   static String title = BaseEntity.getTitle;
   static String creationDate = BaseEntity.getCreationDate;
   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

@@ -1,5 +1,3 @@
-import 'dart:ui';
-
 import 'base_entity.dart';
 import 'identifiers/enum/color.dart';
 import 'identifiers/enum/priority.dart';
@@ -12,12 +10,88 @@ class Promemoria extends BaseEntity{
   static String creationDate = BaseEntity.getCreationDate;
   static String lastModificationDate = BaseEntity.getLastEditDate;
   static String expirationDate = '';
+  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(

lib/navigation.dart

@@ -5,6 +5,7 @@ import 'pages/testUI.dart';
 import 'pages/TodayView.dart';
 import 'pages/InboxView.dart';
 import 'pages/NotesView.dart';
+import 'pages/test.dart';
 
 class Navigation extends StatefulWidget {
   const Navigation({super.key});
@@ -15,11 +16,12 @@ class Navigation extends StatefulWidget {
 
 class _NavigationState extends State<Navigation> {
 
-  int _selectedIndex = 0;
+  int _selectedIndex = 3;
   static const List<Widget> _widgetOptions = <Widget>[
     TodayView(),
     InboxView(),
     NotesView(),
+    Test()
   ];
 
   void _onItemTapped(int index) {
@@ -41,6 +43,7 @@ class _NavigationState extends State<Navigation> {
               icon: Icon(Icons.calendar_today), label: "today"),
           BottomNavigationBarItem(icon: Icon(Icons.inbox), label: "Inbox"),
           BottomNavigationBarItem(icon: Icon(Icons.note), label: "Notes"),
+          BottomNavigationBarItem(icon: Icon(Icons.settings), label: "Settings")
         ],
         currentIndex: _selectedIndex,
         onTap: _onItemTapped,

lib/pages/test.dart

@@ -0,0 +1,45 @@
+import 'package:flutter/material.dart';
+import 'package:progetto_m335_flutter/database/database.dart';
+import 'package:progetto_m335_flutter/model/note.dart';
+
+import '../database/database.dart';
+
+class Test extends StatefulWidget {
+  const Test({super.key});
+
+  @override
+  State<Test> createState() => _TestState();
+}
+
+class _TestState extends State<Test> {
+  NoteDatabase noteDatabase = NoteDatabase.instance;
+
+  Future<void> _pressed() async {
+    print("Inserting demo data");
+    final db = await noteDatabase.database;
+
+
+  }
+
+  Future<void> _printdata() async {
+    final db = await noteDatabase.database;
+
+    print("Printing data");
+    print(await db.query(noteTable));
+    print("Data printed");
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+        body: Center(
+            child: Column(
+              children: [
+                FloatingActionButton(onPressed: _pressed),
+                FloatingActionButton(onPressed: _printdata)
+              ],
+            )
+        )
+    );
+  }
+}

pubspec.yaml

@@ -36,6 +36,9 @@ dependencies:
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.2
   firebase_core: ^2.16.0
+  sqflite: ^2.3.0
+  path: ^1.8.3
+  sqflite_common_ffi: ^2.3.0+2
 
 dev_dependencies:
   flutter_test: