mobile-app/lib/custom_model/Sell.dart

class Sell {
  int id;
  int cropId;
  int activityId;
  int harvestId;
  String executeDate;
  String description;
  String executeBy;
  String media;
  List<String> mediaDel;
  num quantityLv1;
  num quantityLv2;
  num quantityLv3;
  num removedQuantity;
  String buyer;

  Sell(
      {this.id,
      this.cropId,
      this.activityId,
      this.harvestId,
      this.executeDate,
      this.description,
      this.executeBy,
      this.media,
      this.mediaDel,
      this.quantityLv1,
      this.quantityLv2,
      this.quantityLv3,
      this.removedQuantity,
      this.buyer});

  Sell.fromJson(Map<String, dynamic> json) {
    id = json['id'];
    cropId = json['cropId'];
    activityId = json['activityId'];
    harvestId = json['harvestId'];
    executeDate = json['executeDate'];
    description = json['description'];
    executeBy = json['executeBy'];
    media = json['media'];
    quantityLv1 = json['quantityLv1'];
    quantityLv2 = json['quantityLv2'];
    quantityLv3 = json['quantityLv3'];
    removedQuantity = json['removedQuantity'];
    buyer = json['buyer'];
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['id'] = this.id;
    data['cropId'] = this.cropId;
    data['activityId'] = this.activityId;
    data['harvestId'] = this.harvestId;
    data['executeDate'] = this.executeDate;
    data['description'] = this.description;
    data['executeBy'] = this.executeBy;
    data['media'] = this.media;
    data['media_del'] = this.mediaDel;
    data['quantityLv1'] = this.quantityLv1;
    data['quantityLv2'] = this.quantityLv2;
    data['quantityLv3'] = this.quantityLv3;
    data['removedQuantity'] = this.removedQuantity;
    data['buyer'] = this.buyer;
    return data;
  }
}