sqflite_pust_local_notification/lib/db/db_helper.dart

import 'package:sqflite/sqflite.dart';
import 'package:sqflite_pust_local_notification/models/task_model.dart';

class DBHelper {
  static Database? _db;
  static final int _version = 1;
  static final String _tableName = "tbtask";
  static final String _DbName = "task.db";

  static Future<void> initDb() async {
    if (_db != null) {
      return;
    }
    try {
      String _path = await getDatabasesPath() + _DbName;
      _db = await openDatabase(
        _path,
        version: _version,
        onCreate: (db, version) {
          return db.execute(
            "CREATE TABLE $_tableName("
            "id INTEGER PRIMARY KEY AUTOINCREMENT,"
            "title STRING, note TEXT, date STRING,"
            "startTime STRING, endTime STRING,"
            "remind INTEGER, repeat STRING,"
            "color INTEGER, "
            "isCompleted INTEGER)",
          );
        },
      );
    } catch (ex) {
      print(ex);
    }
  }

  static Future<int> insert(TaskModel? task) async {
    return await _db?.insert(_tableName, task!.toJson()) ?? 1;
  }

  static Future<List<Map<String, dynamic>>> query() async {
    return await _db!.query(_tableName);
  }

  static delete(TaskModel taskModel) async {
    return await _db!
        .delete(_tableName, where: 'id=?', whereArgs: [taskModel.id]);
  }

  static update(int id) async {
    return await _db!.rawUpdate('''
      UPDATE tbtask 
      SET isCompleted = ?
      WHERE id = ?
      ''', [1, id]);
  }
}