收集不填充流利NHibernate

我有一个奇怪的错误，当使用流利NHibernate。如果您愿意，我有一个名为Module的实体对象，它是我的“聚合根”。我创建并测试了Module类和各种相关类的映射，并尝试创建一个Module，其所有字段都已填写并保存。这工作正常。收集不填充流利NHibernate

我的问题是当我尝试从数据库检索对象。 Module对象恢复正常，但是它包含的所有集合都是空的，即使我看到数据库表中的对象！我真的可以用这个手，我希望somone能够帮助！

编辑：在下面添加了BuildDeriveModule的代码。

这里是我的测试：

var dei1 = BuildDeriveModule(); 

var sessionSource = Injector.Resolve<ISessionSource>(); 

using (var session = sessionSource.CreateSession()) 
{ 
    using (var transaction = session.BeginTransaction()) 
    { 
     session.Save(dei1); 
     transaction.Commit(); 
    } 
} 

Module item = null; 
using (var session = sessionSource.CreateSession()) 
{ 
    item = session 
       .CreateCriteria(typeof(Module)) 
       .Add(Restrictions.Eq("ModuleId", dei1.ModuleId)) 
       .UniqueResult<Module>(); 

    Assert.Equal<Module>(dei1, item); 
    Assert.Equal<int>(4, item.Variables.Count); 
}

我模块类看起来是这样的：（注：实体来源于FluentNHibernate.Data.Entity）

public class Module : Entity, IEntity 
    { 
     public Module() 
     { 
      Variables = new HashedSet<ModuleVariable>(); 
     } 

     public virtual string ModuleId 
     { 
      get; 
      set; 
     } 

     public virtual ISet<ModuleVariable> Variables 
     { 
      get; 
      set; 
     } 

     public virtual Variable StratumVariable 
     { 
      get; 
      set; 
     } 

     public virtual Stratum DefaultStratum 
     { 
      get; 
      set; 
     } 

     public virtual ISet<Stratum> OptionalStrata 
     { 
      get; 
      set; 
     } 

     public virtual DateTime LastUpdated 
     { 
      get; 
      set; 
     } 

     #region Override Methods 

     public override string ToString() 
     { 
      return this.ModuleId; 
     } 

     public override bool Equals(object obj) 
     { 
      if (obj == null) return false; 

      var other = obj as Module; 

      if (other == null) return false; 

      if (other.ModuleId != this.ModuleId) return false; 

      return true; 
     } 

     public override int GetHashCode() 
     { 
      return ModuleId.GetHashCode(); 
     } 

     #endregion 
    }

我的映射是这样的：

public class ModuleMap : ClassMap<Module> 
{ 
    public ModuleMap() 
    { 
     Id(x => x.Id); 
     Version(x => x.LastUpdated); 
     Map(x => x.ModuleId) 
      .Unique() 
      .Not.Nullable(); 
     HasMany<ModuleVariable>(x => x.Variables) 
      .Inverse() 
      .Cascade.SaveUpdate(); 
     References<Variable>(x => x.StratumVariable) 
      .Not.Nullable() 
      .Cascade.SaveUpdate(); 
     References<Stratum>(x => x.DefaultStratum) 
      .Not.Nullable() 
      .Cascade.SaveUpdate(); 
     HasMany<Stratum>(x => x.OptionalStrata) 
      .Inverse() 
      .Cascade.SaveUpdate(); 
    } 
}

BuildDeriveModule的代码：

私人模块BuildDeriveModule（） { var pp01 = new Relation { RelationId =“PP01” };

 var hh01 = new Relation 
     { 
      RelationId = "HH01" 
     }; 

     var stdei1 = new Variable 
     { 
      VariableId = "STDEI1", 
      Relation = pp01 
     }; 

     var frameId = new Variable 
     { 
      VariableId = "FRAME_ID", 
      Relation = pp01 
     }; 

     var persno = new Variable 
     { 
      VariableId = "PERSNO", 
      Relation = pp01 
     }; 

     var hp = new Driver 
     { 
      Name = "HP", 
      Phase = 1 
     }; 

     hp.KeyVariables.Add(frameId); 
     hp.KeyVariables.Add(persno); 

     var r2p1 = new Variable 
     { 
      VariableId = "R2P1", 
      Relation = pp01 
     }; 

     var age = new Variable 
     { 
      VariableId = "AGE", 
      Relation = pp01 
     }; 

     var marst = new Variable 
     { 
      VariableId = "MARST", 
      Relation = pp01 
     }; 

     var doctp = new Variable 
     { 
      VariableId = "DOCTP", 
      Relation = hh01 
     }; 

     pp01.AddVariable(stdei1); 
     pp01.AddVariable(r2p1); 
     pp01.AddVariable(age); 
     pp01.AddVariable(marst); 
     hh01.AddVariable(doctp); 

     var defaultStratum = new Stratum 
     { 
      Number = -1, 
      Driver = hp 
     }; 

     var dei1 = new Module 
     { 
      ModuleId = "DEI1", 
      StratumVariable = stdei1, 
      DefaultStratum = defaultStratum 
     }; 

     var mv_r2p1 = new ModuleVariable 
     { 
      ModuleId = dei1, 
      VariableId = "R2P1", 
      UploadId = r2p1, 
      DownloadId = r2p1, 
      HasSubunits = true 
     }; 

     var mv_age = new ModuleVariable 
     { 
      ModuleId = dei1, 
      VariableId = "AGE", 
      UploadId = age, 
      DownloadId = age, 
      HasSubunits = true 
     }; 

     var mv_marst = new ModuleVariable 
     { 
      ModuleId = dei1, 
      VariableId = "MARST", 
      UploadId = marst, 
      DownloadId = marst, 
      HasSubunits = true 
     }; 

     var mv_doctp = new ModuleVariable 
     { 
      ModuleId = dei1, 
      VariableId = "DOCTP", 
      UploadId = doctp, 
      DownloadId = doctp, 
      HasSubunits = false 
     }; 

     dei1.AddVariable(mv_r2p1); 
     dei1.AddVariable(mv_age); 
     dei1.AddVariable(mv_marst); 
     dei1.AddVariable(mv_doctp); 

     return dei1; 
    }

来源

2009-07-01 Jeffrey Cameron

你可以为BuildDeriveModule（）添加代码吗？ – Nigel 2009-07-01 10:33:26

完成！提前致谢！ – 2009-07-01 12:20:35

OK，我想我得到它的工作。我删除了.Inverse（）从线

HasMany<ModuleVariable>(x => x.Variables) 
      .Inverse() 
      .Cascade.SaveUpdate();

在ModuleMap和单元测试工作。我不太清楚为什么，所以如果任何人都可以指出，它将不胜感激。

来源

2009-07-02 11:33:51

收集不填充流利NHibernate

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