大幅変更＆環境バージョンアップ

lib/model/entry.dart

@@ -0,0 +1,50 @@
+// lib/models/entry.dart
+import 'event.dart';
+import 'team.dart';
+import 'category.dart';
+
+class Entry {
+  final int id;
+  final Team team;
+  final Event event;
+  final NewCategory category;
+  final DateTime? date;
+  final int zekkenNumber;  // 新しく追加
+  final String owner;
+
+  Entry({
+    required this.id,
+    required this.team,
+    required this.event,
+    required this.category,
+    required this.date,
+    required this.zekkenNumber,
+    required this.owner,
+  });
+
+  factory Entry.fromJson(Map<String, dynamic> json) {
+    return Entry(
+      id: json['id'],
+      team: Team.fromJson(json['team']),
+      event: Event.fromJson(json['event']),
+      category: NewCategory.fromJson(json['category']),
+      date: json['date'] != null
+          ? DateTime.tryParse(json['date'])
+          : null,
+      zekkenNumber: json['zekken_number'],  // 新しく追加
+      owner: json['owner'] is Map ? json['owner']['name'] ?? '' : json['owner'] ?? '',
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'id': id,
+      'team': team.toJson(),
+      'event': event.toJson(),
+      'category': category.toJson(),
+      'date': date?.toIso8601String(),
+      'zekken_number': zekkenNumber,  // 新しく追加
+      'owner': owner,
+    };
+  }
+}