基本功能完善

2026-03-07 00:40:01 +08:00
parent f2ab6a17ba
commit 082145ff79
39 changed files with 5726 additions and 867 deletions
--- a/lib/utils/book_review_dao.dart
+++ b/lib/utils/book_review_dao.dart
@@ -0,0 +1,109 @@
+import 'package:sqflite/sqflite.dart';
+import '../models/data_models.dart';
+import 'database_helper.dart';
+
+/// 书评数据访问对象
+class BookReviewDao {
+  final DatabaseHelper _dbHelper = DatabaseHelper.instance;
+
+  /// 获取书籍的所有书评
+  Future<List<BookReview>> getReviewsByBookId(String bookId) async {
+    final db = await _dbHelper.database;
+    final maps = await db.query(
+      'book_reviews',
+      where: 'book_id = ? AND is_deleted = 0',
+      whereArgs: [bookId],
+      orderBy: 'created_at DESC',
+    );
+    return maps.map((map) => BookReview.fromJson(map)).toList();
+  }
+
+  /// 根据ID获取书评
+  Future<BookReview?> getReviewById(String id) async {
+    final db = await _dbHelper.database;
+    final maps = await db.query(
+      'book_reviews',
+      where: 'id = ? AND is_deleted = 0',
+      whereArgs: [id],
+    );
+    if (maps.isNotEmpty) {
+      return BookReview.fromJson(maps.first);
+    }
+    return null;
+  }
+
+  /// 插入书评
+  Future<String> insertReview(BookReview review) async {
+    final db = await _dbHelper.database;
+    await db.insert(
+      'book_reviews',
+      review.toJson(),
+      conflictAlgorithm: ConflictAlgorithm.replace,
+    );
+    return review.id;
+  }
+
+  /// 更新书评
+  Future<void> updateReview(BookReview review) async {
+    final db = await _dbHelper.database;
+    await db.update(
+      'book_reviews',
+      review.toJson(),
+      where: 'id = ?',
+      whereArgs: [review.id],
+    );
+  }
+
+  /// 删除书评（软删除）
+  Future<void> deleteReview(String id) async {
+    final db = await _dbHelper.database;
+    await db.update(
+      'book_reviews',
+      {'is_deleted': 1},
+      where: 'id = ?',
+      whereArgs: [id],
+    );
+  }
+
+  /// 彻底删除书评
+  Future<void> permanentDeleteReview(String id) async {
+    final db = await _dbHelper.database;
+    await db.delete(
+      'book_reviews',
+      where: 'id = ?',
+      whereArgs: [id],
+    );
+  }
+
+  /// 获取书评数量
+  Future<int> getReviewCount(String bookId) async {
+    final db = await _dbHelper.database;
+    final result = await db.rawQuery(
+      'SELECT COUNT(*) as count FROM book_reviews WHERE book_id = ? AND is_deleted = 0',
+      [bookId],
+    );
+    return result.first['count'] as int? ?? 0;
+  }
+
+  /// 获取所有已删除的书评
+  Future<List<BookReview>> getDeletedReviews() async {
+    final db = await _dbHelper.database;
+    final maps = await db.query(
+      'book_reviews',
+      where: 'is_deleted = 1',
+      orderBy: 'updated_at DESC',
+    );
+    return maps.map((map) => BookReview.fromJson(map)).toList();
+  }
+
+  /// 恢复已删除的书评
+  Future<void> restoreReview(String id) async {
+    final db = await _dbHelper.database;
+    await db.update(
+      'book_reviews',
+      {'is_deleted': 0},
+      where: 'id = ?',
+      whereArgs: [id],
+    );
+  }
+}