generated from dellevin/template
70 lines
2.1 KiB
Dart
70 lines
2.1 KiB
Dart
import 'package:flutter/foundation.dart';
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import '../../models/reader_book.dart';
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import '../database_helper.dart';
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/// 阅读器书籍 DAO
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class ReaderBookDao {
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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('[ReaderBookDao] $op error: $e');
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rethrow;
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}
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}
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Future<List<ReaderBook>> getAllReaderBooks() => _wrap('getAllReaderBooks', () 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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'reader_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) => ReaderBook.fromJson(maps[i]));
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});
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Future<ReaderBook?> getReaderBookById(String id) => _wrap('getReaderBookById', () 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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'reader_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 ReaderBook.fromJson(maps.first);
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});
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Future<void> insertReaderBook(ReaderBook book) => _wrap('insertReaderBook', () async {
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final db = await _dbHelper.database;
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await db.insert('reader_books', book.toJson());
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});
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Future<void> updateReaderBook(ReaderBook book) => _wrap('updateReaderBook', () async {
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final db = await _dbHelper.database;
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await db.update(
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'reader_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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Future<void> deleteReaderBook(String id) => _wrap('deleteReaderBook', () async {
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final db = await _dbHelper.database;
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await db.update(
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'reader_books',
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{'is_deleted': 1, '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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Future<void> permanentDeleteReaderBook(String id) => _wrap('permanentDeleteReaderBook', () async {
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final db = await _dbHelper.database;
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await db.delete('reader_books', where: 'id = ?', whereArgs: [id]);
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});
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}
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