import 'package:intl/intl.dart'; class Exercise { int exerciseId; int exerciseTypeId; int customerId; int quantity; DateTime datetimeExercise; Exercise({this.exerciseTypeId, this.customerId, this.quantity, this.datetimeExercise}); Exercise.fromJson(Map json) { this.exerciseTypeId = json['exerciseTypeId']; this.customerId = json['customerId']; this.quantity = json['quantity']; this.datetimeExercise = json['datetimeExercise']; } Map toJson() => { "exerciseTypeId": exerciseTypeId, "customerId": customerId, "quantity": quantity, "datetimeExercise": DateFormat('yyyy-MM-dd HH:mm:ss').format(this.datetimeExercise), }; }