start quesitonnaire

hartmann-foto-documentation-frontend/lib/dto/questionnaire_dto.dart

@@ -0,0 +1,30 @@
+import 'package:fotodocumentation/utils/date_time_utils.dart';
+
+class QuestionnaireDto {
+  final int id;
+  final String? comment;
+  final String? category;
+  int evaluation;
+  final DateTime questionnaireDate;
+  final String? username;
+  
+  QuestionnaireDto(
+      {required this.id, required this.comment, required this.category, required this.evaluation, required this.questionnaireDate, required this.username});
+
+  /// Create from JSON response
+  factory QuestionnaireDto.fromJson(Map<String, dynamic> json) {
+    return QuestionnaireDto(
+      id: json['id'] as int,
+      comment: json['comment'] as String?,
+      category: json['category'] as String?,
+      evaluation: json["evaluation"] as int,
+      questionnaireDate: DateTimeUtils.toDateTime(json['questionnaireDate']) ?? DateTime.now(),
+      username: json['username'] as String?,
+    );
+  }
+
+  @override
+  String toString() {
+    return 'QuestionnaireDto{id: $id}';
+  }
+}