结构重构

2026-03-12 14:33:28 +08:00
parent f63b5b1843
commit 0f221456cb
39 changed files with 106 additions and 105 deletions
--- a/lib/utils/note/note_dao.dart
+++ b/lib/utils/note/note_dao.dart
@@ -0,0 +1,124 @@
+import 'package:sqflite/sqflite.dart';
+import '../../models/data_models.dart';
+import '../database_helper.dart';
+
+/// 笔记数据访问对象
+class NoteDao {
+  final DatabaseHelper _dbHelper = DatabaseHelper.instance;
+
+  // 获取所有未删除的笔记
+  Future<List<Note>> getAllNotes() async {
+    final db = await _dbHelper.database;
+    final List<Map<String, dynamic>> maps = await db.query(
+      'notes',
+      where: 'is_deleted = ?',
+      whereArgs: [0],
+      orderBy: 'created_at DESC',
+    );
+
+    return List.generate(maps.length, (i) => Note.fromJson(maps[i]));
+  }
+
+  // 根据ID获取笔记
+  Future<Note?> getNoteById(String id) async {
+    final db = await _dbHelper.database;
+    final List<Map<String, dynamic>> maps = await db.query(
+      'notes',
+      where: 'id = ?',
+      whereArgs: [id],
+    );
+
+    if (maps.isEmpty) return null;
+    return Note.fromJson(maps.first);
+  }
+
+  // 添加笔记
+  Future<int> insertNote(Note note) async {
+    final db = await _dbHelper.database;
+    return await db.insert('notes', note.toJson());
+  }
+
+  // 更新笔记
+  Future<int> updateNote(Note note) async {
+    final db = await _dbHelper.database;
+    return await db.update(
+      'notes',
+      note.toJson(),
+      where: 'id = ?',
+      whereArgs: [note.id],
+    );
+  }
+
+  // 软删除笔记
+  Future<int> deleteNote(String id) async {
+    final db = await _dbHelper.database;
+    return await db.update(
+      'notes',
+      {'is_deleted': 1, 'updated_at': DateTime.now().toIso8601String()},
+      where: 'id = ?',
+      whereArgs: [id],
+    );
+  }
+
+  // ========== 回收站相关方法 ==========
+
+  // 获取已删除的笔记
+  Future<List<Note>> getDeletedNotes() async {
+    final db = await _dbHelper.database;
+    final List<Map<String, dynamic>> maps = await db.query(
+      'notes',
+      where: 'is_deleted = ?',
+      whereArgs: [1],
+      orderBy: 'created_at DESC',
+    );
+
+    return List.generate(maps.length, (i) => Note.fromJson(maps[i]));
+  }
+
+  // 恢复已删除的笔记
+  Future<int> restoreNote(String id) async {
+    final db = await _dbHelper.database;
+    return await db.update(
+      'notes',
+      {'is_deleted': 0, 'updated_at': DateTime.now().toIso8601String()},
+      where: 'id = ?',
+      whereArgs: [id],
+    );
+  }
+
+  // 彻底删除笔记
+  Future<int> permanentDeleteNote(String id) async {
+    final db = await _dbHelper.database;
+    return await db.delete(
+      'notes',
+      where: 'id = ?',
+      whereArgs: [id],
+    );
+  }
+
+  // 搜索笔记
+  Future<List<Note>> searchNotes(String query) async {
+    final db = await _dbHelper.database;
+    final List<Map<String, dynamic>> maps = await db.query(
+      'notes',
+      where: '(content LIKE ? OR tags LIKE ?) AND is_deleted = ?',
+      whereArgs: ['%$query%', '%$query%', 0],
+      orderBy: 'created_at DESC',
+    );
+
+    return List.generate(maps.length, (i) => Note.fromJson(maps[i]));
+  }
+
+  // 根据标签筛选
+  Future<List<Note>> getNotesByTag(String tag) async {
+    final db = await _dbHelper.database;
+    final List<Map<String, dynamic>> maps = await db.query(
+      'notes',
+      where: 'tags LIKE ? AND is_deleted = ?',
+      whereArgs: ['%$tag%', 0],
+      orderBy: 'created_at DESC',
+    );
+
+    return List.generate(maps.length, (i) => Note.fromJson(maps[i]));
+  }
+}