work in progress database

2023-09-28 14:23:23 +02:00
4 changed files with 70 additions and 204 deletions
--- a/lib/database/database.dart
+++ b/lib/database/database.dart
@@ -1,39 +1,32 @@
 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';
+import 'package:sqflite/sqflite.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 {
    if (_database != null) return _database!;
-
    _database = await _initDB('note.db');
    return _database!;
  }

  Future<Database> _initDB(String filePath) async {
+    print("Initializing database");
    final databasePath = await getDatabasesPath();

    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,
@@ -63,23 +56,6 @@ 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 +68,7 @@ class NoteDatabase {
    'Nota 2',
    '2023-09-28',
    '2023-09-28',
+    '',
    'Questo è un esempio di nota 2.'
  )
 ''');
@@ -107,6 +84,7 @@ class NoteDatabase {
    'Nota 2',
    '2023-09-28',
    '2023-09-28',
+    '',
    'Questo è un esempio di nota 2.'
  )
 ''');
@@ -127,6 +105,7 @@ class NoteDatabase {
    '2023-09-27',
    '2023-09-27',
    '2023-10-05',
+    '',
    'Questo è un esempio di promemoria 1.',
    'Alta',
    'Rosso'
@@ -149,6 +128,7 @@ class NoteDatabase {
    '2023-09-28',
    '2023-09-28',
    '2023-10-10',
+    '',
    'Questo è un esempio di promemoria 2.',
    'Media',
    'Verde'
@@ -176,19 +156,34 @@ class NoteDatabase {
  }

  Future<void> deleteDatabase() async {
+    try {
      final databasePath = await getDatabasesPath();
      final path = join(databasePath, 'note.db');
      databaseFactory.deleteDatabase(path);
+    } catch (error) {
+      throw Exception('DbBase.deleteDatabase: $error');
+    }
  }

-  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);
+  Future<void> createNote(Database database, Note note) async {
+    await database.execute('''
+      INSERT INTO note (
+        title,
+        creationDate,
+        lastModificationDate,
+        arrayPromemoria,
+        description,

-    // Restituisce true se il database è stato aperto correttamente, altrimenti false.
-    return database.isOpen;
+      ) VALUES (
+        '$note.title}',
+        '$note.creationDate',
+        '$note.lastModificationDate',
+        '$note.arrayPromemoria.toString()',
+        '$note.description',
+      )
+    ''');
+
+    print('note $note.title inserted');
  }

  Future<List<Map>> selectAllPromemoria() async {
@@ -207,23 +202,29 @@ class NoteDatabase {
    return maps;
  }

-  Future<void> createNote(Database database, Note note) async {
-    await database.insert(
-      'note',
-      note.toMap(),
-      conflictAlgorithm: ConflictAlgorithm.replace,
-    );
-
-    print('note $note.title inserted');
-  }
-
  Future<void> createPromemoria(
      Database database, Promemoria promemoria) async {
-    await database.insert(
-      'promemoria',
-      promemoria.toMap(),
-      conflictAlgorithm: ConflictAlgorithm.replace,
-    );
+    await database.execute('''
+      INSERT INTO promemoria (
+        title,
+        creationDate,
+        lastModificationDate,
+        expirationDate,
+        arrayPromemoria,
+        description,
+        priority,
+        color
+      ) VALUES (
+        '$promemoria.title',
+        '$promemoria.creationDate',
+        '$promemoria.lastModificationDate',
+        '$promemoria.expirationDate',
+        '$promemoria.arrayPromemoria.toString()',
+        '$promemoria.description',
+        '$promemoria.priority',
+        '$promemoria.color'
+      )
+    ''');

    print('promemoria $promemoria.title inserted');
  }
@@ -243,17 +244,11 @@ class NoteDatabase {
    return results.first;
  }

-  Future<void> updatePromemoria(Promemoria promemoria) async {
-    final db = await database;
+//  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()]);
-  }
+//await db.update('promemoria', promemoria, where: 'id = ?',
+// Pass the Dog's id as a whereArg to prevent SQL injection.
+//  whereArgs: [dog.id],)
+//}
 }
--- a/lib/model/note.dart
+++ b/lib/model/note.dart
@@ -9,63 +9,4 @@ 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;
-  }
 }
--- a/lib/model/promemoria.dart
+++ b/lib/model/promemoria.dart
@@ -13,85 +13,6 @@ 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;
-  }
-
-
 }
--- a/lib/pages/test.dart
+++ b/lib/pages/test.dart
@@ -29,6 +29,14 @@ class _TestState extends State<Test> {
    print("Data printed");
  }

+  Future<void> _deletedatabase() async {
+    final db = await noteDatabase.database;
+
+    print("Deleting database");
+    await db.delete(noteTable);
+    print("Database deleted");
+  }
+
  @override
  Widget build(BuildContext context) {
    return Scaffold(
@@ -36,7 +44,8 @@ class _TestState extends State<Test> {
            child: Column(
              children: [
                FloatingActionButton(onPressed: _pressed),
-                FloatingActionButton(onPressed: _printdata)
+                FloatingActionButton(onPressed: _printdata),
+                FloatingActionButton(onPressed: _deletedatabase)
              ],
            )
        )