笔记功能初步完善

lib/models/data_models_extension.dart

@@ -0,0 +1,78 @@
+/// 数据模型扩展 - 添加 copyWith 方法以便更新数据
+library;
+
+import 'data_models.dart';
+
+/// Movie 扩展 - 添加 copyWith 方法
+extension MovieExtension on Movie {
+  /// 创建副本并允许修改部分属性
+  Movie copyWith({
+    String? id,
+    String? title,
+    String? poster,
+    double? rating,
+    int? year,
+    String? status,
+    DateTime? watchDate,
+    String? note,
+  }) {
+    return Movie(
+      id: id ?? this.id,
+      title: title ?? this.title,
+      poster: poster ?? this.poster,
+      rating: rating ?? this.rating,
+      year: year ?? this.year,
+      status: status ?? this.status,
+      watchDate: watchDate ?? this.watchDate,
+      note: note ?? this.note,
+    );
+  }
+}
+
+/// Book 扩展 - 添加 copyWith 方法
+extension BookExtension on Book {
+  /// 创建副本并允许修改部分属性
+  Book copyWith({
+    String? id,
+    String? title,
+    String? author,
+    String? cover,
+    double? rating,
+    String? status,
+    DateTime? readDate,
+    String? note,
+  }) {
+    return Book(
+      id: id ?? this.id,
+      title: title ?? this.title,
+      author: author ?? this.author,
+      cover: cover ?? this.cover,
+      rating: rating ?? this.rating,
+      status: status ?? this.status,
+      readDate: readDate ?? this.readDate,
+      note: note ?? this.note,
+    );
+  }
+}
+
+/// Note 扩展 - 添加 copyWith 方法
+extension NoteExtension on Note {
+  /// 创建副本并允许修改部分属性
+  Note copyWith({
+    String? id,
+    String? title,
+    String? content,
+    List<String>? tags,
+    DateTime? createdAt,
+    DateTime? updatedAt,
+  }) {
+    return Note(
+      id: id ?? this.id,
+      title: title ?? this.title,
+      content: content ?? this.content,
+      tags: tags ?? this.tags,
+      createdAt: createdAt ?? this.createdAt,
+      updatedAt: updatedAt ?? this.updatedAt,
+    );
+  }
+}