0

我正在使用VS2010,NHibernate 3.1.0.4000并且fluent Nhibernate 1.2.0.712.

我的程序包含以下类层次结构:

public abstract class Stop
{  
}

public abstract class WorkStop : Stop
{
}

public class PatientStop : WorkStop
{
}

public class DoctorStop : WorkStop
{
}

public class HubStop : Stop
{
}

我的映射覆盖如下:

 public class StopMappingOverride : IAutoMappingOverride<Stop>
{
    public void Override(AutoMapping<Stop> mapping)
    {
        mapping.DiscriminateSubClassesOnColumn("StopType");
        mapping.SubClass<HubStop>("HubStop");
        mapping.SubClass<WorkStop>("WorkStop").Abstract();
        mapping.References(x => x.Planning).Cascade.None();
    }
}

public class WorkStopMappingOverride : IAutoMappingOverride<WorkStop>
{
    public void Override(AutoMapping<WorkStop> mapping)
    {
        //mapping.Table("Stop");
        mapping.DiscriminateSubClassesOnColumn("StopType");
        mapping.SubClass<DoctorStop>("DoctorStop");
        mapping.SubClass<PatientStop>("PatientStop");
        mapping.HasMany(d => d.Tasks).KeyColumn("StopId")
            .AsSet()
            .Access.CamelCaseField(Prefix.Underscore);

        mapping.References(x => x.Doctor).Cascade.None();
    }
}

public class DoctorStopMappingOverride : IAutoMappingOverride<DoctorStop>
{
    public void Override(AutoMapping<DoctorStop> mapping)
    {
        mapping.References(x => x.Practice).Cascade.None();
        mapping.HasMany(d => d.Protocols).KeyColumn("StopId")
            .AsSet()
            .Access.CamelCaseField(Prefix.Underscore);
        mapping.HasMany(d => d.Materials).KeyColumn("StopId")
            .AsSet()
            .Access.CamelCaseField(Prefix.Underscore);
    }
}
public class PatientStopMappingOverride : IAutoMappingOverride<PatientStop>
{
    public void Override(AutoMapping<PatientStop> mapping)
    {
        mapping.References(x => x.Patient).Cascade.None();
    }
}

public class HubStopMappingOverride : IAutoMappingOverride<HubStop>
{
    public void Override(AutoMapping<HubStop> mapping)
    {
    }
}

以上用于在以前的项目中工作。除了工作台的额外抽象级别,那是新的。但是然后 hubstop 应该仍然可以工作,我将在下面说明。

何时按原样使用映射覆盖,我收到错误: System.Data.SqlClient.SqlException : Invalid object name 'WORKSTOP'

所以我想,如果我指定表名怎么办,是的,因为 WorkStop 上的映射覆盖,鉴别器被正确填写,并且医生和病人站可以被持久化。

但后来我得到了错误: System.Data.SqlClient.SqlException : Invalid object name 'HUBSTOP'

所以我再次使用了表名,但现在我收到以下错误: Cannot insert the value NULL into column 'StopType'

为什么表鉴别器首先在停止映射覆盖时不起作用?

4

1 回答 1

0

尝试覆盖

public class AutomappingConfiguration : DefaultAutomappingConfiguration
{
    public override bool IsDiscriminated(System.Type type)
    {
        var types = new System.Type[] { typeof(Stop), typeof(WorkStop) };
        return base.IsDiscriminated(type) || types.Contains(type);
    }
于 2013-07-23T07:24:01.167 回答