37 lines
807 B
Dart
37 lines
807 B
Dart
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import 'package:progetto_m335_flutter/model/note.dart';
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class Database{
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static final Database _instance = Database._init();
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static Database? _database;
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Database._init();
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Future<Database> get database async {
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if (_database != null) return _database!;
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_database = await _initDB('database.db');
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return _database!;
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}
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Future _createDB(Database database) async{
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const integerPrimaryKeyAutoincrement = 'INTEGER PRIMARY KEY AUTOINCREMENT';
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const textNotNull = 'TEXT NOT NULL';
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const integerNotNull = 'INTEGER NOT NULL';
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const integer = 'INTEGER';
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const real = 'REAL';
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const text = 'TEXT';
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await database.execute('''
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CREATE TABLE $Note (
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${Note.id} $integerPrimaryKeyAutoincrement,
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)
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''');
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}
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execute(String s) {
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}
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} |