fcs/lib/vo/pd.dart

import 'package:cloud_firestore/cloud_firestore.dart';

class PD {
  String id;
  DateTime date;
  String userID;
  String userName;
  String pdNumber;
  List<PDLine> pdLines = [];

  PD({this.id, this.date, this.userID, this.userName, this.pdNumber});

  factory PD.fromMap(Map<String, dynamic> map, String id) {
    var _dateTime = (map['date'] as Timestamp);

    return PD(
        id: id,
        userID: map['user_id'],
        userName: map['user_name'],
        date: _dateTime?.toDate(),
        pdNumber: map['pd_number']);
  }

  Map<String, dynamic> toMap() {
    List lines = pdLines.map((l) => l.toMap()).toList();
    return {
      'id': id,
      'date': date,
      'pd_lines': lines,
    };
  }

  @override
  String toString() {
    return 'PD{id:$id, date:$date,pdLines:$pdLines}';
  }
}

class PDLine {
  String storageID, storageName, productID, productName;
  int quantity;
  String action;
  PDLine(
      {this.storageID,
      this.storageName,
      this.productID,
      this.productName,
      this.quantity});

  Map<String, dynamic> toMap() {
    return {
      'storage_id': storageID,
      'storage_name': storageName,
      'product_id': productID,
      'product_name': productName,
      'quantity': quantity
    };
  }

  factory PDLine.fromMap(Map<String, dynamic> map) {
    return PDLine(
      storageID: map['storage_id'],
      storageName: map['storage_name'],
      productID: map['product_id'],
      productName: map['product_name'],
      quantity: map['quantity'],
    );
  }
  @override
  bool operator ==(other) {
    if (identical(this, other)) {
      return true;
    }
    return (other.storageID == this.storageID &&
        other.productID == this.productID);
  }

  @override
  int get hashCode {
    int result = 17;
    result = 37 * result + storageID.hashCode;
    result = 37 * result + productID.hashCode;
    return result;
  }

  @override
  String toString() {
    return 'PDLine{storageName:$storageName,productName:$productName,quantity:$quantity}';
  }
}