generated from dellevin/template
v0.2.9
This commit is contained in:
DelLevin-Home
@@ -81,7 +81,7 @@ class DatabaseHelper {
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return await openDatabase(
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path,
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version: 36,
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version: 38,
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onCreate: _createDB,
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onUpgrade: _onUpgrade,
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);
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@@ -363,6 +363,44 @@ class DatabaseHelper {
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await db.execute('ALTER TABLE games ADD COLUMN release_date TEXT');
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}
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}
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if (oldVersion < 37) {
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// 创建片单表和片单条目表
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await db.execute('''
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CREATE TABLE IF NOT EXISTS playlists (
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id TEXT PRIMARY KEY,
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name TEXT NOT NULL,
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description TEXT DEFAULT '',
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type TEXT NOT NULL,
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cover_path TEXT,
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item_count INTEGER DEFAULT 0,
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created_at TEXT NOT NULL,
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updated_at TEXT NOT NULL,
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is_deleted INTEGER DEFAULT 0
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)
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''');
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await db.execute('''
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CREATE TABLE IF NOT EXISTS playlist_items (
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id TEXT PRIMARY KEY,
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playlist_id TEXT NOT NULL,
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item_id TEXT NOT NULL,
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sort_order INTEGER DEFAULT 0,
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added_at TEXT NOT NULL,
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FOREIGN KEY (playlist_id) REFERENCES playlists (id)
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)
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''');
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await db.execute(
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'CREATE INDEX IF NOT EXISTS idx_playlist_items_playlist ON playlist_items(playlist_id)',
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);
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}
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if (oldVersion < 38) {
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// 片单表添加 sort_order 字段
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final cols = await db.rawQuery('PRAGMA table_info(playlists)');
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if (!cols.any((col) => col['name'] == 'sort_order')) {
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await db.execute('ALTER TABLE playlists ADD COLUMN sort_order INTEGER DEFAULT 0');
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}
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}
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}
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Future<void> _upgradeBooksTableV26(Database db) async {
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final columns = await db.rawQuery('PRAGMA table_info(books)');
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@@ -964,6 +1002,37 @@ class DatabaseHelper {
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FOREIGN KEY (game_id) REFERENCES games (id)
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)
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''');
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// 片单表
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await db.execute('''
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CREATE TABLE playlists (
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id TEXT PRIMARY KEY,
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name TEXT NOT NULL,
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description TEXT DEFAULT '',
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type TEXT NOT NULL,
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cover_path TEXT,
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item_count INTEGER DEFAULT 0,
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sort_order INTEGER DEFAULT 0,
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created_at TEXT NOT NULL,
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updated_at TEXT NOT NULL,
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is_deleted INTEGER DEFAULT 0
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)
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''');
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// 片单条目表
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await db.execute('''
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CREATE TABLE playlist_items (
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id TEXT PRIMARY KEY,
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playlist_id TEXT NOT NULL,
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item_id TEXT NOT NULL,
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sort_order INTEGER DEFAULT 0,
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added_at TEXT NOT NULL,
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FOREIGN KEY (playlist_id) REFERENCES playlists (id)
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)
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''');
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await db.execute(
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'CREATE INDEX idx_playlist_items_playlist ON playlist_items(playlist_id)',
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);
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}
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// 关闭数据库
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167
lib/data/playlist/playlist_dao.dart
Normal file
167
lib/data/playlist/playlist_dao.dart
Normal file
@@ -0,0 +1,167 @@
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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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/// 片单数据访问对象
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class PlaylistDao {
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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('[PlaylistDao] $op error: $e');
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rethrow;
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}
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}
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// 获取所有片单（未删除）
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Future<List<Playlist>> getAllPlaylists() => _wrap('getAllPlaylists', () async {
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final db = await _dbHelper.database;
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final maps = await db.query(
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'playlists',
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where: 'is_deleted = ?',
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whereArgs: [0],
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orderBy: 'sort_order ASC, updated_at DESC',
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);
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return maps.map((m) => Playlist.fromJson(m)).toList();
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});
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// 获取单个片单
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Future<Playlist?> getPlaylistById(String id) => _wrap('getPlaylistById', () async {
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final db = await _dbHelper.database;
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final maps = await db.query(
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'playlists',
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where: 'id = ?',
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whereArgs: [id],
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);
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if (maps.isEmpty) return null;
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return Playlist.fromJson(maps.first);
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});
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// 创建片单
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Future<int> insertPlaylist(Playlist playlist) => _wrap('insertPlaylist', () async {
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final db = await _dbHelper.database;
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return await db.insert('playlists', playlist.toJson());
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});
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// 更新片单
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Future<int> updatePlaylist(Playlist playlist) => _wrap('updatePlaylist', () async {
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final db = await _dbHelper.database;
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return await db.update(
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'playlists',
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playlist.toJson(),
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where: 'id = ?',
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whereArgs: [playlist.id],
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);
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});
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// 软删除片单
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Future<int> deletePlaylist(String id) => _wrap('deletePlaylist', () async {
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final db = await _dbHelper.database;
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// 同时删除片单内条目
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await db.delete('playlist_items', where: 'playlist_id = ?', whereArgs: [id]);
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return await db.update(
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'playlists',
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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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// 获取片单内条目
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Future<List<PlaylistItem>> getPlaylistItems(String playlistId) => _wrap('getPlaylistItems', () async {
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final db = await _dbHelper.database;
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final maps = await db.query(
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'playlist_items',
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where: 'playlist_id = ?',
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whereArgs: [playlistId],
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orderBy: 'sort_order ASC, added_at DESC',
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);
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return maps.map((m) => PlaylistItem.fromJson(m)).toList();
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});
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// 添加条目到片单
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Future<int> addItem(PlaylistItem item) => _wrap('addItem', () async {
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final db = await _dbHelper.database;
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final result = await db.insert('playlist_items', item.toJson());
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await _updateItemCount(item.playlistId);
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return result;
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});
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// 从片单移除条目
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Future<int> removeItem(String itemId, String playlistId) => _wrap('removeItem', () async {
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final db = await _dbHelper.database;
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final result = await db.delete(
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'playlist_items',
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where: 'id = ?',
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whereArgs: [itemId],
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);
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await _updateItemCount(playlistId);
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return result;
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});
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// 检查条目是否已在片单中
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Future<bool> isItemInPlaylist(String playlistId, String itemId) => _wrap('isItemInPlaylist', () async {
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final db = await _dbHelper.database;
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final maps = await db.query(
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'playlist_items',
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where: 'playlist_id = ? AND item_id = ?',
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whereArgs: [playlistId, itemId],
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);
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return maps.isNotEmpty;
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});
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// 获取片单内所有条目ID
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Future<List<String>> getPlaylistItemIds(String playlistId) => _wrap('getPlaylistItemIds', () async {
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final db = await _dbHelper.database;
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final maps = await db.query(
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'playlist_items',
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columns: ['item_id'],
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where: 'playlist_id = ?',
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whereArgs: [playlistId],
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);
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return maps.map((m) => m['item_id'].toString()).toList();
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});
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// 同步 item_count
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Future<void> _updateItemCount(String playlistId) async {
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final db = await _dbHelper.database;
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final count = (await db.rawQuery(
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'SELECT COUNT(*) as cnt FROM playlist_items WHERE playlist_id = ?',
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[playlistId],
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)).first['cnt'] as int;
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await db.update(
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'playlists',
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{'item_count': count, 'updated_at': DateTime.now().toIso8601String()},
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where: 'id = ?',
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whereArgs: [playlistId],
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);
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}
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// 批量更新片单条目排序
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Future<void> updatePlaylistItemOrder(String playlistId, List<String> itemIds) => _wrap('updatePlaylistItemOrder', () async {
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final db = await _dbHelper.database;
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for (int i = 0; i < itemIds.length; i++) {
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await db.update(
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'playlist_items',
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{'sort_order': i},
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where: 'id = ?',
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whereArgs: [itemIds[i]],
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);
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}
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});
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// 批量更新片单排序
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Future<void> updatePlaylistOrder(List<String> playlistIds) => _wrap('updatePlaylistOrder', () async {
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final db = await _dbHelper.database;
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for (int i = 0; i < playlistIds.length; i++) {
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await db.update(
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'playlists',
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{'sort_order': i},
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where: 'id = ?',
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whereArgs: [playlistIds[i]],
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);
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}
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});
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}
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