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sjk
260
client/lib/shared/models/api_response.dart
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260
client/lib/shared/models/api_response.dart
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/// API响应基础模型
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class ApiResponse<T> {
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final bool success;
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final String message;
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final T? data;
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final String? error;
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final int? code;
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final Map<String, dynamic>? meta;
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const ApiResponse({
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required this.success,
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required this.message,
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this.data,
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this.error,
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this.code,
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this.meta,
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});
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factory ApiResponse.fromJson(
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Map<String, dynamic> json,
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T Function(dynamic)? fromJsonT,
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) {
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return ApiResponse<T>(
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success: json['success'] as bool? ?? false,
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message: json['message'] as String? ?? '',
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data: json['data'] != null && fromJsonT != null
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? fromJsonT(json['data'])
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: json['data'] as T?,
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error: json['error'] as String?,
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code: json['code'] as int?,
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meta: json['meta'] as Map<String, dynamic>?,
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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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'success': success,
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'message': message,
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'data': data,
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'error': error,
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'code': code,
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'meta': meta,
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};
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}
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/// 成功响应
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factory ApiResponse.success({
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required String message,
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T? data,
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Map<String, dynamic>? meta,
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}) {
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return ApiResponse<T>(
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success: true,
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message: message,
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data: data,
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meta: meta,
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);
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}
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/// 失败响应
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factory ApiResponse.failure({
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required String message,
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String? error,
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int? code,
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Map<String, dynamic>? meta,
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}) {
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return ApiResponse<T>(
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success: false,
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message: message,
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error: error,
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code: code,
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meta: meta,
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);
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}
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/// 是否成功
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bool get isSuccess => success;
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/// 是否失败
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bool get isFailure => !success;
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@override
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String toString() {
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return 'ApiResponse(success: $success, message: $message, data: $data, error: $error)';
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}
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}
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/// 分页响应模型
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class PaginatedResponse<T> {
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final List<T> data;
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final PaginationMeta pagination;
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const PaginatedResponse({
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required this.data,
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required this.pagination,
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});
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factory PaginatedResponse.fromJson(
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Map<String, dynamic> json,
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T Function(Map<String, dynamic>) fromJsonT,
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) {
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return PaginatedResponse<T>(
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data: (json['data'] as List)
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.map((e) => fromJsonT(e as Map<String, dynamic>))
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.toList(),
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pagination: PaginationMeta.fromJson(json['pagination'] as Map<String, dynamic>),
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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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'data': data,
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'pagination': pagination.toJson(),
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};
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}
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}
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/// 分页元数据模型
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class PaginationMeta {
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final int currentPage;
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final int totalPages;
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final int totalItems;
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final int itemsPerPage;
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final bool hasNextPage;
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final bool hasPreviousPage;
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const PaginationMeta({
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required this.currentPage,
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required this.totalPages,
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required this.totalItems,
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required this.itemsPerPage,
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required this.hasNextPage,
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required this.hasPreviousPage,
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});
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factory PaginationMeta.fromJson(Map<String, dynamic> json) {
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return PaginationMeta(
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currentPage: json['current_page'] as int,
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totalPages: json['total_pages'] as int,
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totalItems: json['total_items'] as int,
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itemsPerPage: json['items_per_page'] as int,
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hasNextPage: json['has_next_page'] as bool,
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hasPreviousPage: json['has_previous_page'] as bool,
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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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'current_page': currentPage,
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'total_pages': totalPages,
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'total_items': totalItems,
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'items_per_page': itemsPerPage,
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'has_next_page': hasNextPage,
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'has_previous_page': hasPreviousPage,
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};
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}
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}
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/// 认证响应模型
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class AuthResponse {
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final String accessToken;
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final String refreshToken;
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final String tokenType;
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final int expiresIn;
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final Map<String, dynamic>? user;
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const AuthResponse({
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required this.accessToken,
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required this.refreshToken,
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required this.tokenType,
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required this.expiresIn,
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this.user,
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});
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factory AuthResponse.fromJson(Map<String, dynamic> json) {
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return AuthResponse(
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accessToken: json['access_token'] as String,
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refreshToken: json['refresh_token'] as String,
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tokenType: json['token_type'] as String? ?? 'Bearer',
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expiresIn: json['expires_in'] as int,
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user: json['user'] as Map<String, dynamic>?,
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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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'access_token': accessToken,
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'refresh_token': refreshToken,
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'token_type': tokenType,
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'expires_in': expiresIn,
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'user': user,
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};
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}
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}
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/// 错误响应模型
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class ErrorResponse {
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final String message;
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final String? code;
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final List<ValidationError>? validationErrors;
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final Map<String, dynamic>? details;
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const ErrorResponse({
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required this.message,
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this.code,
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this.validationErrors,
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this.details,
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});
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factory ErrorResponse.fromJson(Map<String, dynamic> json) {
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return ErrorResponse(
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message: json['message'] as String,
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code: json['code'] as String?,
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validationErrors: json['validation_errors'] != null
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? (json['validation_errors'] as List)
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.map((e) => ValidationError.fromJson(e as Map<String, dynamic>))
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.toList()
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: null,
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details: json['details'] as Map<String, dynamic>?,
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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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'message': message,
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'code': code,
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'validation_errors': validationErrors?.map((e) => e.toJson()).toList(),
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'details': details,
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};
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}
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}
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/// 验证错误模型
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class ValidationError {
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final String field;
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final String message;
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final String? code;
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const ValidationError({
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required this.field,
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required this.message,
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this.code,
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});
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factory ValidationError.fromJson(Map<String, dynamic> json) {
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return ValidationError(
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field: json['field'] as String,
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message: json['message'] as String,
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code: json['code'] 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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'field': field,
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'message': message,
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'code': code,
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};
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}
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}
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