54 lines
1.4 KiB
Dart
54 lines
1.4 KiB
Dart
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/// مدل پاسخ صفحهبندی شده
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class PaginatedResponse<T> {
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final List<T> items;
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final int totalCount;
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final int page;
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final int pageSize;
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final bool hasNextPage;
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final bool hasPreviousPage;
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const PaginatedResponse({
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required this.items,
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required this.totalCount,
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required this.page,
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required this.pageSize,
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required this.hasNextPage,
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required this.hasPreviousPage,
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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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final items = (json['items'] as List<dynamic>?)
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?.map((item) => fromJsonT(item as Map<String, dynamic>))
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.toList() ?? <T>[];
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final totalCount = json['total_count'] as int? ?? 0;
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final page = json['page'] as int? ?? 1;
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final pageSize = json['page_size'] as int? ?? 20;
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final hasNextPage = json['has_next_page'] as bool? ?? false;
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final hasPreviousPage = json['has_previous_page'] as bool? ?? false;
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return PaginatedResponse<T>(
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items: items,
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totalCount: totalCount,
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page: page,
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pageSize: pageSize,
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hasNextPage: hasNextPage,
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hasPreviousPage: hasPreviousPage,
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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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'items': items,
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'total_count': totalCount,
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'page': page,
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'page_size': pageSize,
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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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