49 lines
1.3 KiB
Dart
49 lines
1.3 KiB
Dart
/// 学习进度模型
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class LearningProgress {
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final String id;
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final String title;
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final String category;
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final int totalWords;
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final int learnedWords;
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final double progress;
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final DateTime? lastStudyDate;
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LearningProgress({
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required this.id,
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required this.title,
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required this.category,
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required this.totalWords,
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required this.learnedWords,
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required this.progress,
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this.lastStudyDate,
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});
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factory LearningProgress.fromJson(Map<String, dynamic> json) {
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return LearningProgress(
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id: json['id'] as String? ?? '',
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title: json['title'] as String? ?? '',
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category: json['category'] as String? ?? '',
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totalWords: json['total_words'] as int? ?? 0,
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learnedWords: json['learned_words'] as int? ?? 0,
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progress: (json['progress'] as num?)?.toDouble() ?? 0.0,
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lastStudyDate: json['last_study_date'] != null
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? DateTime.tryParse(json['last_study_date'] as String)
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: null,
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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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'title': title,
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'category': category,
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'total_words': totalWords,
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'learned_words': learnedWords,
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'progress': progress,
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'last_study_date': lastStudyDate?.toIso8601String(),
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};
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}
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String get progressPercentage => '${(progress * 100).toInt()}%';
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}
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