mobile-app/lib/custom_model/Environment.dart

class Environment {
  int id;
  int activityId;
  int cropId;
  String executeDate;
  String media;
  String description;
  String executeBy;
  String pH;
  String ec;
  String ocdd;
  String temperature;
  String dodo;
  String lln;
  List<EnvironmentUpdates> environmentUpdates;

  Environment(
      {this.id,
      this.activityId,
      this.cropId,
      this.executeDate,
      this.media,
      this.description,
      this.executeBy,
      this.pH,
      this.ec,
      this.ocdd,
      this.temperature,
      this.dodo,
      this.lln,
      this.environmentUpdates});

  Environment.fromJson(Map<String, dynamic> json) {
    id = json['id'];
    activityId = json['activityId'];
    cropId = json['cropId'];
    executeDate = json['executeDate'];
    media = json['media'];
    description = json['description'];
    executeBy = json['executeBy'];
    pH = json['pH'];
    ec = json['ec'];
    ocdd = json['ocdd'];
    temperature = json['temperature'];
    dodo = json['dodo'];
    lln = json['lln'];
    if (json['environmentUpdates'] != null) {
      environmentUpdates = new List<EnvironmentUpdates>();
      json['environmentUpdates'].forEach((v) {
        environmentUpdates.add(new EnvironmentUpdates.fromJson(v));
      });
    }
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['id'] = this.id;
    data['activityId'] = this.activityId;
    data['cropId'] = this.cropId;
    data['executeDate'] = this.executeDate;
    data['media'] = this.media;
    data['description'] = this.description;
    data['executeBy'] = this.executeBy;
    data['pH'] = this.pH;
    data['ec'] = this.ec;
    data['ocdd'] = this.ocdd;
    data['temperature'] = this.temperature;
    data['dodo'] = this.dodo;
    data['lln'] = this.lln;
    if (this.environmentUpdates != null) {
      data['environmentUpdates'] =
          this.environmentUpdates.map((v) => v.toJson()).toList();
    }
    return data;
  }
}

class EnvironmentUpdates {
  int id;
  num index;
  num times;
  int tbEnvironmentalId;
  String tbEnvironmentalName;
  String tbEnvironmentalUnit;
  String tbEnvironmentalDescription;
  int tbActivityId;
  num tbEquipmentOfCustomerId;

  EnvironmentUpdates(
      {this.id,
      this.index,
      this.times,
      this.tbEnvironmentalId,
      this.tbEnvironmentalName,
      this.tbEnvironmentalUnit,
      this.tbEnvironmentalDescription,
      this.tbActivityId,
      this.tbEquipmentOfCustomerId});

  EnvironmentUpdates.fromJson(Map<String, dynamic> json) {
    id = json['id'];
    index = json['index'];
    times = json['times'];
    tbEnvironmentalId = json['tbEnvironmentalId'];
    tbEnvironmentalName = json['tbEnvironmentalName'];
    tbEnvironmentalUnit = json['tbEnvironmentalUnit'];
    tbEnvironmentalDescription = json['tbEnvironmentalDescription'];
    tbActivityId = json['tbActivityId'];
    tbEquipmentOfCustomerId = json['tbEquipmentOfCustomerId'];
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['id'] = this.id;
    data['index'] = this.index;
    data['times'] = this.times;
    data['tbEnvironmentalId'] = this.tbEnvironmentalId;
    data['tbEnvironmentalName'] = this.tbEnvironmentalName;
    data['tbEnvironmentalUnit'] = this.tbEnvironmentalUnit;
    data['tbEnvironmentalDescription'] = this.tbEnvironmentalDescription;
    data['tbActivityId'] = this.tbActivityId;
    data['tbEquipmentOfCustomerId'] = this.tbEquipmentOfCustomerId;
    return data;
  }
}