流畅的NHibernate映射抛出了一个例外，“Id”未映射＆＃39;

Question

我需要Fluent Nhibernate中的自动映射帮助。这是我想在我的应用程序中使用的表格（它们中有很多，但我想从仅映射其中的几个开始）

好吧，我想使用AutoMapping功能，因为我不想为超过100个表编写映射类......

无论如何，这是创建SessionFactory时抛出的错误（代码在本文末尾）

  

实体'FilterConfig'没有映射的Id   使用Id方法映射您的标识属性。例如：Id（x =＆gt; x.Id）。

实体（我希望我正确创建）：

public partial class UserLogin
{
    public UserLogin()
    {
        this.UserMessages = new List<UserMessage>();
        this.UserMessagesReceivers = new List<UserMessagesReceiver>();
    }

    public virtual int ID { get; set; }
    public virtual int UserTypeID { get; set; }
    public virtual int? StudentID { get; set; }
    public virtual int? HeadmasterID { get; set; }
    public virtual int? ParentID { get; set; }
    public virtual string UniqueID { get; set; }
    public virtual bool ShowMyPhoneNumber { get; set; }
    public virtual bool IsBanned { get; set; }
    public virtual string Login { get; set; }
    public virtual string Password { get; set; }
    public virtual bool WasPasswordSent { get; set; }
    public virtual string Email { get; set; }
    public virtual string UserPicture { get; set; }
    public virtual IList<UserMessage> UserMessages { get; set; }
    public virtual IList<UserMessagesReceiver> UserMessagesReceivers { get; set; }
}

public partial class UserMessage
{
    public UserMessage()
    {
        this.UserMessagesReceivers = new List<UserMessagesReceiver>();
        this.UserMessagesReplies = new List<UserMessagesReply>();
    }

    public virtual int ID { get; set; }
    public virtual DateTime Date { get; set; }
    public virtual DateTime? LastCheckDate { get; set; }
    public virtual int UserLoginID { get; set; }
    public virtual string Description { get; set; }
    public virtual bool HasNonCheckedReplies { get; set; }
    public virtual UserLogin UserLogin { get; set; }
    public virtual IList<UserMessagesReceiver> UserMessagesReceivers { get; set; }
    public virtual IList<UserMessagesReply> UserMessagesReplies { get; set; }
}

public partial class UserMessagesReceiver
{
    public UserMessagesReceiver()
    {
        this.WasMessageChecked = false;
        this.UserMessagesReplies = new List<UserMessagesReply>();
    }

    public virtual int ID { get; set; }
    public virtual int UserMessagesID { get; set; }
    public virtual int ReceiverLoginID { get; set; }
    public virtual bool WasMessageChecked { get; set; }
    public virtual DateTime? LastCheckedDate { get; set; }
    public virtual UserLogin UserLogin { get; set; }
    public virtual UserMessage UserMessage { get; set; }
    public virtual IList<UserMessagesReply> UserMessagesReplies { get; set; }
}

public partial class UserMessagesReply
{
    public UserMessagesReply()
    {
    }

    public virtual int ID { get; set; }
    public virtual DateTime Date { get; set; }
    public virtual int UserMessagesID { get; set; }
    public virtual int? UserMessagesReceiverID { get; set; }
    public virtual string Description { get; set; }
    public virtual UserMessage UserMessage { get; set; }
    public virtual UserMessagesReceiver UserMessagesReceiver { get; set; }
}

配置：

    public class AutomappingConfiguration : DefaultAutomappingConfiguration
    {
        public override bool IsId(Member member)
        {
            return member.Name == member.DeclaringType.Name + "ID";
        }
    }

    private static AutoPersistenceModel CreateAutomappings()
    {
        return AutoMap.AssemblyOf<AutomappingConfiguration>(new AutomappingConfiguration());
    }

    private static ISessionFactory CreateSessionFactory()
    {
        var cfg = new AutomappingConfiguration();
        return Fluently.Configure()
                       .Database(MySQLConfiguration.Standard
                       .ConnectionString("..."))
                       .Mappings(m => m.AutoMappings
                                       .Add(AutoMap.AssemblyOf<UserLogin>(cfg))
                                       .Add(AutoMap.AssemblyOf<UserMessage>(cfg))
                                       .Add(AutoMap.AssemblyOf<UserMessagesReceiver>(cfg))
                                       .Add(AutoMap.AssemblyOf<UserMessagesReply>(cfg)))
                       .BuildSessionFactory();
    }

Answer 1

在配置中你说Ids被命名为UserLoginID，但在课堂上它们被定义为public virtual int ID { get; set; }所以改变

return member.Name == member.DeclaringType.Name + "ID";

到

return member.Name == "ID";

其他一些信息：

• 似乎没有使用CreateAutomappings（）
• AutomappingConfiguration应该至少覆盖ShouldMap（成员）来过滤命名空间（例如member.Namespace.StartsWith(typeof(UserMessage).Namespace)），否则迟早会映射实用程序类等
• AutoMap.AssemblyOf＆LT;＆GT;应该按照包含不是每种类型的类型的程序集调用