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292
client/lib/shared/models/vocabulary_model.dart
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292
client/lib/shared/models/vocabulary_model.dart
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/// 词汇模型
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class VocabularyModel {
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final int wordId;
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final String word;
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final String pronunciation;
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final String phonetic;
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final List<WordMeaning> meanings;
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final String? etymology;
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final List<String> examples;
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final String? imageUrl;
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final String? audioUrl;
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final int difficulty;
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final List<String> tags;
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final DateTime createdAt;
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final DateTime updatedAt;
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const VocabularyModel({
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required this.wordId,
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required this.word,
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required this.pronunciation,
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required this.phonetic,
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required this.meanings,
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this.etymology,
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required this.examples,
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this.imageUrl,
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this.audioUrl,
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required this.difficulty,
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required this.tags,
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required this.createdAt,
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required this.updatedAt,
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});
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factory VocabularyModel.fromJson(Map<String, dynamic> json) {
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return VocabularyModel(
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wordId: json['word_id'] as int,
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word: json['word'] as String,
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pronunciation: json['pronunciation'] as String,
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phonetic: json['phonetic'] as String,
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meanings: (json['meanings'] as List)
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.map((e) => WordMeaning.fromJson(e as Map<String, dynamic>))
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.toList(),
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etymology: json['etymology'] as String?,
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examples: (json['examples'] as List).cast<String>(),
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imageUrl: json['image_url'] as String?,
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audioUrl: json['audio_url'] as String?,
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difficulty: json['difficulty'] as int,
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tags: (json['tags'] as List).cast<String>(),
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createdAt: DateTime.parse(json['created_at'] as String),
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updatedAt: DateTime.parse(json['updated_at'] as String),
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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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'word_id': wordId,
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'word': word,
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'pronunciation': pronunciation,
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'phonetic': phonetic,
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'meanings': meanings.map((e) => e.toJson()).toList(),
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'etymology': etymology,
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'examples': examples,
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'image_url': imageUrl,
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'audio_url': audioUrl,
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'difficulty': difficulty,
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'tags': tags,
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'created_at': createdAt.toIso8601String(),
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'updated_at': updatedAt.toIso8601String(),
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};
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}
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VocabularyModel copyWith({
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int? wordId,
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String? word,
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String? pronunciation,
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String? phonetic,
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List<WordMeaning>? meanings,
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String? etymology,
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List<String>? examples,
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String? imageUrl,
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String? audioUrl,
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int? difficulty,
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List<String>? tags,
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DateTime? createdAt,
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DateTime? updatedAt,
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}) {
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return VocabularyModel(
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wordId: wordId ?? this.wordId,
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word: word ?? this.word,
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pronunciation: pronunciation ?? this.pronunciation,
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phonetic: phonetic ?? this.phonetic,
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meanings: meanings ?? this.meanings,
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etymology: etymology ?? this.etymology,
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examples: examples ?? this.examples,
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imageUrl: imageUrl ?? this.imageUrl,
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audioUrl: audioUrl ?? this.audioUrl,
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difficulty: difficulty ?? this.difficulty,
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tags: tags ?? this.tags,
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createdAt: createdAt ?? this.createdAt,
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updatedAt: updatedAt ?? this.updatedAt,
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);
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}
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}
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/// 词汇含义模型
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class WordMeaning {
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final String partOfSpeech;
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final String definition;
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final String? chineseDefinition;
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final List<String> synonyms;
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final List<String> antonyms;
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final List<String> examples;
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const WordMeaning({
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required this.partOfSpeech,
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required this.definition,
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this.chineseDefinition,
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required this.synonyms,
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required this.antonyms,
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required this.examples,
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});
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factory WordMeaning.fromJson(Map<String, dynamic> json) {
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return WordMeaning(
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partOfSpeech: json['part_of_speech'] as String,
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definition: json['definition'] as String,
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chineseDefinition: json['chinese_definition'] as String?,
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synonyms: (json['synonyms'] as List).cast<String>(),
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antonyms: (json['antonyms'] as List).cast<String>(),
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examples: (json['examples'] as List).cast<String>(),
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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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'part_of_speech': partOfSpeech,
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'definition': definition,
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'chinese_definition': chineseDefinition,
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'synonyms': synonyms,
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'antonyms': antonyms,
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'examples': examples,
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};
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}
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}
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/// 用户词汇学习记录模型
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class UserVocabularyModel {
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final int userWordId;
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final int userId;
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final int wordId;
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final VocabularyModel? vocabulary;
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final LearningStatus status;
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final int reviewCount;
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final int correctCount;
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final int incorrectCount;
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final double masteryLevel;
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final DateTime? lastReviewAt;
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final DateTime? nextReviewAt;
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final DateTime createdAt;
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final DateTime updatedAt;
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const UserVocabularyModel({
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required this.userWordId,
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required this.userId,
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required this.wordId,
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this.vocabulary,
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required this.status,
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required this.reviewCount,
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required this.correctCount,
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required this.incorrectCount,
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required this.masteryLevel,
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this.lastReviewAt,
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this.nextReviewAt,
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required this.createdAt,
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required this.updatedAt,
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});
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factory UserVocabularyModel.fromJson(Map<String, dynamic> json) {
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return UserVocabularyModel(
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userWordId: json['user_word_id'] as int,
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userId: json['user_id'] as int,
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wordId: json['word_id'] as int,
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vocabulary: json['vocabulary'] != null
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? VocabularyModel.fromJson(json['vocabulary'] as Map<String, dynamic>)
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: null,
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status: LearningStatus.values.firstWhere(
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(e) => e.name == json['status'],
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orElse: () => LearningStatus.new_word,
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),
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reviewCount: json['review_count'] as int,
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correctCount: json['correct_count'] as int,
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incorrectCount: json['incorrect_count'] as int,
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masteryLevel: (json['mastery_level'] as num).toDouble(),
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lastReviewAt: json['last_review_at'] != null
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? DateTime.parse(json['last_review_at'] as String)
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: null,
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nextReviewAt: json['next_review_at'] != null
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? DateTime.parse(json['next_review_at'] as String)
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: null,
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createdAt: DateTime.parse(json['created_at'] as String),
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updatedAt: DateTime.parse(json['updated_at'] as String),
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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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'user_word_id': userWordId,
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'user_id': userId,
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'word_id': wordId,
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'vocabulary': vocabulary?.toJson(),
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'status': status.name,
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'review_count': reviewCount,
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'correct_count': correctCount,
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'incorrect_count': incorrectCount,
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'mastery_level': masteryLevel,
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'last_review_at': lastReviewAt?.toIso8601String(),
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'next_review_at': nextReviewAt?.toIso8601String(),
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'created_at': createdAt.toIso8601String(),
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'updated_at': updatedAt.toIso8601String(),
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};
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}
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}
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/// 学习状态枚举
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enum LearningStatus {
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new_word('new_word', '新单词'),
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learning('learning', '学习中'),
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reviewing('reviewing', '复习中'),
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mastered('mastered', '已掌握'),
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forgotten('forgotten', '已遗忘');
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const LearningStatus(this.value, this.label);
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final String value;
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final String label;
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}
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/// 词库模型
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class VocabularyBookModel {
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final int bookId;
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final String name;
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final String description;
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final String category;
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final String level;
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final int totalWords;
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final String? coverImage;
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final bool isPremium;
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final DateTime createdAt;
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final DateTime updatedAt;
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const VocabularyBookModel({
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required this.bookId,
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required this.name,
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required this.description,
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required this.category,
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required this.level,
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required this.totalWords,
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this.coverImage,
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required this.isPremium,
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required this.createdAt,
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required this.updatedAt,
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});
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factory VocabularyBookModel.fromJson(Map<String, dynamic> json) {
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return VocabularyBookModel(
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bookId: json['book_id'] as int,
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name: json['name'] as String,
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description: json['description'] as String,
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category: json['category'] as String,
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level: json['level'] as String,
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totalWords: json['total_words'] as int,
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coverImage: json['cover_image'] as String?,
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isPremium: json['is_premium'] as bool,
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createdAt: DateTime.parse(json['created_at'] as String),
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updatedAt: DateTime.parse(json['updated_at'] as String),
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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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'book_id': bookId,
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'name': name,
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'description': description,
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'category': category,
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'level': level,
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'total_words': totalWords,
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'cover_image': coverImage,
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'is_premium': isPremium,
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'created_at': createdAt.toIso8601String(),
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'updated_at': updatedAt.toIso8601String(),
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};
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}
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}
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