ORMLIte[ServiceStack] .保存引用方法不会在列表中添加项

本文关键字:列表 添加 方法 ServiceStack 保存 引用 ORMLIte | 更新日期: 2023-09-27 18:34:27

我有以下代码,我正在为我的ORMLite演示做:

[Alias("ProUser")]
public class DomainUser : IProUser
{
    public int UserType { get; set; }
    public string Id{ get; set; }
    [Reference]
    public Address HomeAddress { get; set; }
    [Reference]
    public List<Order> Orders { get; set; }
    [Ignore]
    public UserType UserTypeEnum
    {
        get { return (UserType)UserType; }
        set { UserType = (int)value; }
    }
}
public class Order
{
    [AutoIncrement]
    public int Id { get; set; }
    public string ProUserId { get; set; }
    public string Details { get; set; }
}
  1. 现在,正如您注意到的那样,"域用户"和"具有列表订单的订单"属性之间存在引用关系。
  2. 我可以调用 Db.SaveReferences(user, user.订单(,看看如果我更改了域内的任何东西,那么它运行良好。
  3. 但是,如果我在列表中添加新项目,ORMLite 不会保存它。

我下面的测试很好地证明了这个探头

DomainUser user = repository.Find("Someone.Else") as DomainUser;
user.UserTypeEnum = UserType.Domain;
user.HomeAddress.StreetName = "Some new street";
user.Orders[1].Details = "Nestle Chocolates";
user.Orders.Add(new Order
{
    Details = "Reese",
    ProUserId = user.Id
});
// This one would be OK since the user already has two orders in the DB
Assert.AreEqual(2, user.Orders.Count);  
repository.Update(user);

DomainUser retval =  repository.Find(user.Id) as DomainUser;
// However, this one would fail because no new order has been added.
Assert.AreEqual(3, user.Orders.Count); 

令人困惑的是,我看到ORMLite正在尝试添加新记录,因为我看到正在执行插入查询。我不确定为什么DB没有反映它....

以下是 Find(( 和 Update(( 方法的存储库外观:

public IProUser Find(string id)
        {
            DomainUser user = Db.LoadSingleById<DomainUser>(id);
            return user;
        }
 public IProUser Update(DomainUser user)
        {
            using(Db.OpenTransaction(IsolationLevel.ReadCommitted))
            { 
                Db.Save(user);
                Db.SaveReferences(user,user.HomeAddress);
                Db.SaveReferences(user,user.Orders);
                return Find(user.Id);
            }
        }

ORMLIte[ServiceStack] .保存引用方法不会在列表中添加项

您需要显式提交 ADO.NET 事务,即:

using(var trans = Db.OpenTransaction(IsolationLevel.ReadCommitted))
{ 
    Db.Save(user);
    Db.SaveReferences(user,user.HomeAddress);
    Db.SaveReferences(user,user.Orders);
    trans.Commit();
    return Find(user.Id);
}