generated from dellevin/template
70 lines
2.1 KiB
Dart
70 lines
2.1 KiB
Dart
import 'package:flutter/foundation.dart';
|
|
import '../models/reader_book.dart';
|
|
import 'database_helper.dart';
|
|
|
|
/// 阅读器书籍 DAO
|
|
class ReaderBookDao {
|
|
final DatabaseHelper _dbHelper = DatabaseHelper.instance;
|
|
|
|
Future<T> _wrap<T>(String op, Future<T> Function() fn) async {
|
|
try {
|
|
return await fn();
|
|
} catch (e) {
|
|
debugPrint('[ReaderBookDao] $op error: $e');
|
|
rethrow;
|
|
}
|
|
}
|
|
|
|
Future<List<ReaderBook>> getAllReaderBooks() => _wrap('getAllReaderBooks', () async {
|
|
final db = await _dbHelper.database;
|
|
final List<Map<String, dynamic>> maps = await db.query(
|
|
'reader_books',
|
|
where: 'is_deleted = ?',
|
|
whereArgs: [0],
|
|
orderBy: 'created_at DESC',
|
|
);
|
|
return List.generate(maps.length, (i) => ReaderBook.fromJson(maps[i]));
|
|
});
|
|
|
|
Future<ReaderBook?> getReaderBookById(String id) => _wrap('getReaderBookById', () async {
|
|
final db = await _dbHelper.database;
|
|
final List<Map<String, dynamic>> maps = await db.query(
|
|
'reader_books',
|
|
where: 'id = ? AND is_deleted = ?',
|
|
whereArgs: [id, 0],
|
|
);
|
|
if (maps.isEmpty) return null;
|
|
return ReaderBook.fromJson(maps.first);
|
|
});
|
|
|
|
Future<void> insertReaderBook(ReaderBook book) => _wrap('insertReaderBook', () async {
|
|
final db = await _dbHelper.database;
|
|
await db.insert('reader_books', book.toJson());
|
|
});
|
|
|
|
Future<void> updateReaderBook(ReaderBook book) => _wrap('updateReaderBook', () async {
|
|
final db = await _dbHelper.database;
|
|
await db.update(
|
|
'reader_books',
|
|
book.toJson(),
|
|
where: 'id = ?',
|
|
whereArgs: [book.id],
|
|
);
|
|
});
|
|
|
|
Future<void> deleteReaderBook(String id) => _wrap('deleteReaderBook', () async {
|
|
final db = await _dbHelper.database;
|
|
await db.update(
|
|
'reader_books',
|
|
{'is_deleted': 1, 'updated_at': DateTime.now().toIso8601String()},
|
|
where: 'id = ?',
|
|
whereArgs: [id],
|
|
);
|
|
});
|
|
|
|
Future<void> permanentDeleteReaderBook(String id) => _wrap('permanentDeleteReaderBook', () async {
|
|
final db = await _dbHelper.database;
|
|
await db.delete('reader_books', where: 'id = ?', whereArgs: [id]);
|
|
});
|
|
}
|