database init

This commit is contained in:
2023-09-28 11:38:19 +02:00
parent 2ac4444f9e
commit 5e4a3e28da
3 changed files with 170 additions and 19 deletions

View File

@@ -1,32 +1,181 @@
import 'package:path/path.dart';
import 'package:progetto_m335_flutter/model/note.dart';
import 'package:sqflite/sqflite.dart';
class Database{
static final Database _instance = Database._init();
// 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;
Database._init();
// Zero args constructor needed to extend this class
NoteDatabase();
Future _createDB(Database database) async{
const integerPrimaryKeyAutoincrement = 'INTEGER PRIMARY KEY AUTOINCREMENT';
const textNotNull = 'TEXT NOT NULL';
const integerNotNull = 'INTEGER NOT NULL';
const integer = 'INTEGER';
const real = 'REAL';
const text = 'TEXT';
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 {
// 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) {
print("Database already created");
}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,
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,
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,
description
) VALUES (
'Nota 2',
'2023-09-28',
'2023-09-28',
'Questo è un esempio di nota 2.'
)
''');
await database.execute('''
CREATE TABLE $Note (
${Note.id} $integerPrimaryKeyAutoincrement,
INSERT INTO note (
title,
creationDate,
lastModificationDate,
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,
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,
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<List<Map>> selectAllPromemoria() async {
final db = await database;
final List<Map<String, dynamic>> maps = await db.query(promemoriaTable);
return maps;
}
Future close() async {
final database = await instance.database;
database.close();
}
// WARNING: FOR DEV/TEST PURPOSES ONLY!!
Future<void> deleteDatabase() async {
final databasePath = await getDatabasesPath();
final path = join(databasePath, 'note.db');
databaseFactory.deleteDatabase(path);
}
}

View File

@@ -18,6 +18,5 @@ class Promemoria extends BaseEntity{
static Color color = Color.none;
}

View File

@@ -3,6 +3,7 @@ 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});
@@ -13,11 +14,12 @@ 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) {
@@ -36,6 +38,7 @@ 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,