Question

我正在尝试使用SQLite.net在我的PCL中实现OneToMany关系。我有async扩展包（SQLiteNetExtensions.Async），我的代码基于https://bitbucket.org/twincoders/sqlite-net-extensions中的示例。我使用的是SQLiteAsyncConnection，但UpdateWithChildren方法似乎不可用，只能使用SQLiteConnection。

using SQLite.Net;
using SQLite.Net.Async;
using SQLite.Net.Interop;
using SQLiteNetExtensions.Extensions;

private readonly SQLiteAsyncConnection conn;
public ActivityRepository(ISQLitePlatform platform, string dbPath)
{
    var connectionFactory = new Func<SQLiteConnectionWithLock>(() => new SQLiteConnectionWithLock(platform, new SQLiteConnectionString(dbPath, storeDateTimeAsTicks: true)));
    conn = new SQLiteAsyncConnection(connectionFactory);
}
public void method(object object) {
    conn.UpdateWithChildren(object); --function not available
}

Answer 1

使用SQLiteAsyncConnection时，您必须使用async Nuget package，SQLiteNetExtensionsAsync.Extensions命名空间和所有方法的异步版本：

using SQLite.Net;
using SQLite.Net.Async;
using SQLite.Net.Interop;
using SQLiteNetExtensionsAsync.Extensions;

private readonly SQLiteAsyncConnection conn;
public ActivityRepository(ISQLitePlatform platform, string dbPath)
{
    var connectionFactory = new Func<SQLiteConnectionWithLock>(() => new SQLiteConnectionWithLock(platform, new SQLiteConnectionString(dbPath, storeDateTimeAsTicks: true)));
    conn = new SQLiteAsyncConnection(connectionFactory);
}
public Task method(object object) {
    return conn.UpdateWithChildrenAsync(object);
}

请注意，所有异步方法都会返回必须等待或返回的Task。

SQLiteAsyncConnection UpdateWithChildren不可用

1 个答案: