generated from dellevin/template
优化项目结构
This commit is contained in:
DelLevin-Home
186
lib/data/book/book_dao.dart
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186
lib/data/book/book_dao.dart
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@@ -0,0 +1,186 @@
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import 'package:flutter/foundation.dart';
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import '../../models/data_models.dart';
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import '../database_helper.dart';
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/// 书籍数据访问对象
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class BookDao {
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final DatabaseHelper _dbHelper = DatabaseHelper.instance;
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Future<T> _wrap<T>(String op, Future<T> Function() fn) async {
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try {
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return await fn();
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} catch (e) {
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debugPrint('[BookDao] $op error: $e');
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rethrow;
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}
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}
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// 获取所有未删除的书籍记录
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Future<List<Book>> getAllBooks() => _wrap('getAllBooks', () async {
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final db = await _dbHelper.database;
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final List<Map<String, dynamic>> maps = await db.query(
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'books',
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where: 'is_deleted = ?',
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whereArgs: [0],
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orderBy: 'created_at DESC',
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);
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return List.generate(maps.length, (i) => Book.fromJson(maps[i]));
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});
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// 分页查询书籍记录
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Future<List<Book>> getBooksPaged({String? status, int limit = 20, int offset = 0, int sortMode = 0}) => _wrap('getBooksPaged', () async {
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final db = await _dbHelper.database;
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String where = 'is_deleted = 0';
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List<dynamic> whereArgs = [];
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if (status != null && status.isNotEmpty) {
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where += ' AND status = ?';
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whereArgs.add(status);
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}
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final maps = await db.query('books', where: where, whereArgs: whereArgs,
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orderBy: _buildBookOrderBy(sortMode), limit: limit, offset: offset);
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return List.generate(maps.length, (i) => Book.fromJson(maps[i]));
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});
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static String _buildBookOrderBy(int sortMode) {
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switch (sortMode) {
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case 1: return 'created_at DESC';
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case 2: return 'rating DESC NULLS LAST, updated_at DESC';
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default: return 'updated_at DESC';
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}
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}
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// 根据状态筛选书籍记录
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Future<List<Book>> getBooksByStatus(String status) => _wrap('getBooksByStatus', () async {
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final db = await _dbHelper.database;
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final List<Map<String, dynamic>> maps = await db.query(
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'books',
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where: 'status = ? AND is_deleted = ?',
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whereArgs: [status, 0],
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orderBy: 'created_at DESC',
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);
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return List.generate(maps.length, (i) => Book.fromJson(maps[i]));
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});
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// 根据ID获取书籍
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Future<Book?> getBookById(String id) => _wrap('getBookById', () async {
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final db = await _dbHelper.database;
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final List<Map<String, dynamic>> maps = await db.query(
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'books',
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where: 'id = ? AND is_deleted = ?',
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whereArgs: [id, 0],
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);
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if (maps.isEmpty) return null;
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return Book.fromJson(maps.first);
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});
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// 添加书籍记录
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Future<int> insertBook(Book book) => _wrap('insertBook', () async {
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final db = await _dbHelper.database;
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return await db.insert('books', book.toJson());
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});
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// 更新书籍记录
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Future<int> updateBook(Book book) => _wrap('updateBook', () async {
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final db = await _dbHelper.database;
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return await db.update(
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'books',
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book.toJson(),
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where: 'id = ?',
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whereArgs: [book.id],
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);
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});
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// 仅更新封面偏移量（不触发全量刷新）
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Future<void> updateCoverOffset(String bookId, double offset) => _wrap('updateCoverOffset', () async {
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final db = await _dbHelper.database;
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await db.update('books', {'cover_offset': offset}, where: 'id = ?', whereArgs: [bookId]);
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});
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// 软删除书籍记录（移入回收站）
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Future<int> deleteBook(String id) => _wrap('deleteBook', () async {
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final db = await _dbHelper.database;
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return await db.update(
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'books',
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{
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'is_deleted': 1,
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'updated_at': DateTime.now().toIso8601String(),
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},
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where: 'id = ?',
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whereArgs: [id],
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);
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});
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// 搜索书籍（标题、别名）
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Future<List<Book>> searchBooks(String query) => _wrap('searchBooks', () async {
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final db = await _dbHelper.database;
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final List<Map<String, dynamic>> maps = await db.query(
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'books',
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where: '(title LIKE ? OR alternate_titles LIKE ?) AND is_deleted = ?',
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whereArgs: ['%$query%', '%$query%', 0],
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orderBy: 'created_at DESC',
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);
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return List.generate(maps.length, (i) => Book.fromJson(maps[i]));
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});
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// 根据作者筛选
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Future<List<Book>> getBooksByAuthor(String author) => _wrap('getBooksByAuthor', () async {
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final db = await _dbHelper.database;
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final List<Map<String, dynamic>> maps = await db.query(
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'books',
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where: 'authors LIKE ? AND is_deleted = ?',
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whereArgs: ['%$author%', 0],
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orderBy: 'created_at DESC',
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);
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return List.generate(maps.length, (i) => Book.fromJson(maps[i]));
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});
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// 根据类型筛选
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Future<List<Book>> getBooksByGenre(String genre) => _wrap('getBooksByGenre', () async {
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final db = await _dbHelper.database;
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final List<Map<String, dynamic>> maps = await db.query(
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'books',
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where: 'genres LIKE ? AND is_deleted = ?',
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whereArgs: ['%$genre%', 0],
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orderBy: 'created_at DESC',
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);
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return List.generate(maps.length, (i) => Book.fromJson(maps[i]));
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});
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// ========== 回收站相关方法 ==========
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// 获取已删除的书籍
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Future<List<Book>> getDeletedBooks() => _wrap('getDeletedBooks', () async {
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final db = await _dbHelper.database;
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final List<Map<String, dynamic>> maps = await db.query(
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'books',
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where: 'is_deleted = ?',
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whereArgs: [1],
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orderBy: 'created_at DESC',
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);
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return List.generate(maps.length, (i) => Book.fromJson(maps[i]));
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});
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// 恢复已删除的书籍
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Future<int> restoreBook(String id) => _wrap('restoreBook', () async {
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final db = await _dbHelper.database;
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return await db.update(
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'books',
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{'is_deleted': 0, 'updated_at': DateTime.now().toIso8601String()},
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where: 'id = ?',
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whereArgs: [id],
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);
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});
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// 彻底删除书籍
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Future<int> permanentDeleteBook(String id) => _wrap('permanentDeleteBook', () async {
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final db = await _dbHelper.database;
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// 清理子记录，防止孤儿数据
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await db.delete('book_reviews', where: 'book_id = ?', whereArgs: [id]);
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await db.delete('book_excerpts', where: 'book_id = ?', whereArgs: [id]);
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return await db.delete(
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'books',
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where: 'id = ?',
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whereArgs: [id],
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);
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});
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}
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117
lib/data/book/book_excerpt_dao.dart
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117
lib/data/book/book_excerpt_dao.dart
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@@ -0,0 +1,117 @@
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import 'package:flutter/foundation.dart';
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import 'package:sqflite/sqflite.dart';
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import '../../models/data_models.dart';
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import '../database_helper.dart';
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/// 书籍摘抄数据访问对象
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class BookExcerptDao {
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final DatabaseHelper _dbHelper = DatabaseHelper.instance;
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Future<T> _wrap<T>(String op, Future<T> Function() fn) async {
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try {
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return await fn();
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} catch (e) {
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debugPrint('[BookExcerptDao] $op error: $e');
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rethrow;
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}
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}
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/// 获取书籍的所有摘抄
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Future<List<BookExcerpt>> getExcerptsByBookId(String bookId) => _wrap('getExcerptsByBookId', () async {
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final db = await _dbHelper.database;
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final maps = await db.query(
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'book_excerpts',
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where: 'book_id = ? AND is_deleted = 0',
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whereArgs: [bookId],
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orderBy: 'created_at DESC',
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);
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return maps.map((map) => BookExcerpt.fromJson(map)).toList();
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});
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/// 根据ID获取摘抄
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Future<BookExcerpt?> getExcerptById(String id) => _wrap('getExcerptById', () async {
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final db = await _dbHelper.database;
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final maps = await db.query(
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'book_excerpts',
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where: 'id = ? AND is_deleted = 0',
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whereArgs: [id],
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);
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if (maps.isNotEmpty) return BookExcerpt.fromJson(maps.first);
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return null;
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});
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/// 插入摘抄
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Future<String> insertExcerpt(BookExcerpt excerpt) => _wrap('insertExcerpt', () async {
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final db = await _dbHelper.database;
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await db.insert(
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'book_excerpts',
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excerpt.toJson(),
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conflictAlgorithm: ConflictAlgorithm.replace,
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);
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return excerpt.id;
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});
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/// 更新摘抄
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Future<void> updateExcerpt(BookExcerpt excerpt) => _wrap('updateExcerpt', () async {
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final db = await _dbHelper.database;
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await db.update(
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'book_excerpts',
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excerpt.toJson(),
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where: 'id = ?',
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whereArgs: [excerpt.id],
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);
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});
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/// 删除摘抄（软删除）
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Future<void> deleteExcerpt(String id) => _wrap('deleteExcerpt', () async {
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final db = await _dbHelper.database;
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await db.update(
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'book_excerpts',
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{'is_deleted': 1, 'updated_at': DateTime.now().toUtc().toIso8601String()},
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where: 'id = ?',
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whereArgs: [id],
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);
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});
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/// 彻底删除摘抄
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Future<void> permanentDeleteExcerpt(String id) => _wrap('permanentDeleteExcerpt', () async {
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final db = await _dbHelper.database;
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await db.delete(
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'book_excerpts',
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where: 'id = ?',
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whereArgs: [id],
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);
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});
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/// 获取摘抄数量
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Future<int> getExcerptCount(String bookId) => _wrap('getExcerptCount', () async {
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final db = await _dbHelper.database;
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final result = await db.rawQuery(
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'SELECT COUNT(*) as count FROM book_excerpts WHERE book_id = ? AND is_deleted = 0',
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[bookId],
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);
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return result.first['count'] as int? ?? 0;
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});
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/// 获取所有已删除的摘抄
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Future<List<BookExcerpt>> getDeletedExcerpts() => _wrap('getDeletedExcerpts', () async {
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final db = await _dbHelper.database;
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final maps = await db.query(
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'book_excerpts',
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where: 'is_deleted = 1',
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orderBy: 'updated_at DESC',
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);
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return maps.map((map) => BookExcerpt.fromJson(map)).toList();
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});
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/// 恢复已删除的摘抄
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Future<void> restoreExcerpt(String id) => _wrap('restoreExcerpt', () async {
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final db = await _dbHelper.database;
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await db.update(
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'book_excerpts',
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{'is_deleted': 0},
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where: 'id = ?',
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whereArgs: [id],
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);
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});
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}
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117
lib/data/book/book_review_dao.dart
Normal file
117
lib/data/book/book_review_dao.dart
Normal file
@@ -0,0 +1,117 @@
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import 'package:flutter/foundation.dart';
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import 'package:sqflite/sqflite.dart';
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import '../../models/data_models.dart';
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import '../database_helper.dart';
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/// 书评数据访问对象
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class BookReviewDao {
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final DatabaseHelper _dbHelper = DatabaseHelper.instance;
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Future<T> _wrap<T>(String op, Future<T> Function() fn) async {
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try {
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return await fn();
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} catch (e) {
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debugPrint('[BookReviewDao] $op error: $e');
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rethrow;
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}
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}
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/// 获取书籍的所有书评
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Future<List<BookReview>> getReviewsByBookId(String bookId) => _wrap('getReviewsByBookId', () async {
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final db = await _dbHelper.database;
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final maps = await db.query(
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'book_reviews',
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where: 'book_id = ? AND is_deleted = 0',
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whereArgs: [bookId],
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orderBy: 'created_at DESC',
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);
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return maps.map((map) => BookReview.fromJson(map)).toList();
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});
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/// 根据ID获取书评
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Future<BookReview?> getReviewById(String id) => _wrap('getReviewById', () async {
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final db = await _dbHelper.database;
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final maps = await db.query(
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'book_reviews',
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where: 'id = ? AND is_deleted = 0',
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whereArgs: [id],
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);
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if (maps.isNotEmpty) return BookReview.fromJson(maps.first);
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return null;
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});
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/// 插入书评
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Future<String> insertReview(BookReview review) => _wrap('insertReview', () async {
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final db = await _dbHelper.database;
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await db.insert(
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'book_reviews',
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review.toJson(),
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conflictAlgorithm: ConflictAlgorithm.replace,
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);
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return review.id;
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});
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/// 更新书评
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Future<void> updateReview(BookReview review) => _wrap('updateReview', () async {
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final db = await _dbHelper.database;
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await db.update(
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'book_reviews',
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review.toJson(),
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where: 'id = ?',
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whereArgs: [review.id],
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);
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});
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/// 删除书评（软删除）
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Future<void> deleteReview(String id) => _wrap('deleteReview', () async {
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final db = await _dbHelper.database;
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await db.update(
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'book_reviews',
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{'is_deleted': 1, 'updated_at': DateTime.now().toUtc().toIso8601String()},
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where: 'id = ?',
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whereArgs: [id],
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);
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});
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/// 彻底删除书评
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Future<void> permanentDeleteReview(String id) => _wrap('permanentDeleteReview', () async {
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final db = await _dbHelper.database;
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await db.delete(
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'book_reviews',
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where: 'id = ?',
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whereArgs: [id],
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);
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});
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/// 获取书评数量
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Future<int> getReviewCount(String bookId) => _wrap('getReviewCount', () async {
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final db = await _dbHelper.database;
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final result = await db.rawQuery(
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'SELECT COUNT(*) as count FROM book_reviews WHERE book_id = ? AND is_deleted = 0',
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[bookId],
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);
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return result.first['count'] as int? ?? 0;
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});
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/// 获取所有已删除的书评
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Future<List<BookReview>> getDeletedReviews() => _wrap('getDeletedReviews', () async {
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final db = await _dbHelper.database;
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final maps = await db.query(
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'book_reviews',
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where: 'is_deleted = 1',
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orderBy: 'updated_at DESC',
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);
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return maps.map((map) => BookReview.fromJson(map)).toList();
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});
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/// 恢复已删除的书评
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Future<void> restoreReview(String id) => _wrap('restoreReview', () async {
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final db = await _dbHelper.database;
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await db.update(
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'book_reviews',
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{'is_deleted': 0},
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where: 'id = ?',
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whereArgs: [id],
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);
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});
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}
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