60 lines
1.6 KiB
Dart
60 lines
1.6 KiB
Dart
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/// 抄表记录模型
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class MeterReadingModel {
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final String id;
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final String meterNo;
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final String userName;
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final String address;
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final double previousReading;
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final double? currentReading;
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final String status; // pending, completed, abnormal
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final DateTime readingDate;
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final String? reader;
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final String? remark;
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MeterReadingModel({
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required this.id,
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required this.meterNo,
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required this.userName,
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required this.address,
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required this.previousReading,
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this.currentReading,
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required this.status,
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required this.readingDate,
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this.reader,
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this.remark,
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});
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double? get usage =>
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currentReading != null ? currentReading! - previousReading : null;
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factory MeterReadingModel.fromJson(Map<String, dynamic> json) {
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return MeterReadingModel(
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id: json['id']?.toString() ?? '',
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meterNo: json['meterNo'] ?? '',
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userName: json['userName'] ?? '',
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address: json['address'] ?? '',
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previousReading: (json['previousReading'] ?? 0).toDouble(),
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currentReading: json['currentReading']?.toDouble(),
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status: json['status'] ?? 'pending',
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readingDate: DateTime.tryParse(json['readingDate'] ?? '') ?? DateTime.now(),
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reader: json['reader'],
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remark: json['remark'],
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);
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}
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Map<String, dynamic> toJson() {
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return {
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'id': id,
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'meterNo': meterNo,
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'userName': userName,
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'address': address,
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'previousReading': previousReading,
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'currentReading': currentReading,
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'status': status,
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'readingDate': readingDate.toIso8601String(),
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'reader': reader,
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'remark': remark,
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};
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}
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}
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