JXZS_TaskService/taskservice/lib/database/DataBase.dart

import 'package:path/path.dart';
import 'package:sqflite/sqflite.dart' as Sqlite;
import 'package:sqflite/sqflite.dart';
import 'package:taskservice/Model/JXMemberModel.dart';
import 'package:taskservice/Model/JXServiceModel.dart';

class MyDataBase {
  static MyDataBase _instance;
  Database _database;
  String tableMembers = 'members';
  String tableServices = 'services';

  static Future<MyDataBase> get database async {
    if(_instance == null){
      _instance = MyDataBase();
      await _instance.init();
    }
    return _instance;
  }

 Future init() async {
    _database = await Sqlite.openDatabase(join((await Sqlite.getDatabasesPath()), 'data.db'));
    List<Map<String, dynamic>> result = await _database.rawQuery("CREATE TABLE IF NOT EXISTS $tableMembers(id INTEGER PRIMARY KEY, name TEXT, age INTEGER)");
    result.toString();
   // _database.execute("CREATE TABLE $tableMembers(id INTEGER PRIMARY KEY, name TEXT, age INTEGER)",);
  }

  Future<List<JXMemberModel>> queryAllMembers() async {
    List<Map<String , dynamic>> datas =  await _database.query("$tableMembers");
    return datas.map((e) =>
      JXMemberModel()
    ).toList();

  }

  Future<void> saveMember(JXMemberModel jxMemberModel) async {
    await _database.insert(
      tableMembers,
      jxMemberModel.toMap(),
      conflictAlgorithm: ConflictAlgorithm.replace,
    );
  }


  Future<void> saveService(JXMemberModel jxMemberModel, JXServiceModel jxServiceModel) {

  }
}