从NHibernate的分离条件选择别名属性

Question

我基本上试图在条件中创建这个SQL查询。 SQL查询很容易，但要做到这一点与标准查询我必须从分离标准中选择一个属性。任何帮助将不胜感激。

Select y0_ from 
(
    SELECT distinct TOP (1000) this_.Id as y0_, this_.InstrumentNumber as y1_ 
    FROM [SearchRecorderInstrument] this_ 
    inner join [SearchRecorderName] name1_ on this_.Id=name1_.SearchRecorderInstrument_id 
    inner join [NameType] nt4_ on name1_.NameType_id=nt4_.Id 
    inner join [SearchRecorderPropertyLegal] pl5_ on this_.Id=pl5_.SearchRecorderInstrument_id 
    inner join [DocumentType] dt2_ on this_.DocumentType_id=dt2_.Id 
    inner join [DocumentCategory] dc3_ on dt2_.DocumentCategory_id=dc3_.Id 
    WHERE name1_.FIPSCode = '26049' and name1_.LastName like 'smith%' and not (1=0) 
    ORDER BY this_.InstrumentNumber desc 
) [b] 

这是我到目前为止有：

var criteria4 = DetachedCriteria.For(typeof(SearchRecorderInstrument), "instr"); 

      criteria4.CreateCriteria("instr.Names", "name", NHibernate.SqlCommand.JoinType.InnerJoin); 

      criteria4.CreateCriteria("instr.DocumentType", "dt", NHibernate.SqlCommand.JoinType.InnerJoin); 

      criteria4.CreateCriteria("dt.DocumentCategory", "dc", NHibernate.SqlCommand.JoinType.InnerJoin); 

      criteria4.CreateCriteria("name.NameType", "nt", NHibernate.SqlCommand.JoinType.InnerJoin); 

      criteria4.CreateCriteria("instr.PropertyLegals", "pl", NHibernate.SqlCommand.JoinType.InnerJoin); 

      criteria4.Add(Expression.Eq("name.FIPSCode", fipsCode)); 

      criteria4.Add(Expression.Like("name.LastName", lastName, MatchMode.Start)); 

      if (partyIndicator != null && partyIndicator > 0) 
      { 
       criteria4.Add(Expression.Eq("name.PartyIndicator", partyIndicator)); 
      } 

      if (firstName != null && firstName != string.Empty) 
      { 
       criteria4.Add(Expression.Like("name.FirstName", firstName, MatchMode.Start)); 
      } 

      if (beginDate != null) 
      { 
       criteria4.Add(Expression.Ge("instr.RecordedDate", beginDate.Value)); 
      } 

      if (endDate != null) 
      { 
       criteria4.Add(Expression.Lt("instr.RecordedDate", endDate.Value.AddDays(1))); 
      } 

      if (consFrom != null) 
      { 
       criteria4.Add(Expression.Ge("instr.Consideration", consFrom)); 
      } 

      if (consTo != null) 
      { 
       criteria4.Add(Expression.Le("instr.Consideration", consTo)); 
      } 

      if (documentTypeIds != null && documentTypeIds.Any()) 
      { 
       disabledDocTypes = documentTypeIds.Where(x => !disabledDocTypes.Contains(x)).ToList(); 
       criteria4.Add(Expression.In("dt.Id", disabledDocTypes)); 
      } 
      else 
      { 
       criteria4.Add(Expression.Not(Expression.In("dt.Id", disabledDocTypes))); 
      } 

      foreach (var item in legalSearchCriteria) 
      { 
       var val = item.Filter.FilterType.Value; 
       switch (val) 
       { 
        case "LIKE": 
         criteria.Add(Expression.Like("pl." + item.Filter.Field, item.Value)); 
         break; 
        case ">=": 
         criteria.Add(Expression.Ge("pl." + item.Filter.Field, item.Value)); 
         break; 
        case "<=": 
         criteria.Add(Expression.Le("pl." + item.Filter.Field, item.Value)); 
         break; 
        case "=": 
         criteria.Add(Expression.Eq("pl." + item.Filter.Field, item.Value)); 
         break; 
       } 
      } 

      foreach (var item in sortDescriptors) 
      { 
       if (item.SortDescriptorDirection.ToString() == "ASC") 
       { 
        criteria4.AddOrder(Order.Asc(item.ColumnName)); 
       } 
       else 
       { 
        criteria4.AddOrder(Order.Desc(item.ColumnName)); 
       } 
      } 

      criteria4.SetProjection(
       Projections.ProjectionList() 
       .Add(Projections.Distinct(Projections.Property("instr.Id")), "InstrumentId") 
       .Add(Projections.Property("instr.InstrumentNumber"), "InstrumentNumber")); 

      criteria4.SetFirstResult(skip).SetMaxResults(rowsViewed); 

我需要从这个独立的查询只需要选择InstrumentId。因此，我想出了这样的事情，到目前为止，但我不认为这会工作：

var criteria5 = sess.CreateCriteria<SearchRecorderInstrument>("instr"); 
      criteria5.Add(Subqueries.Select(criteria4)); 

Answer 1

我假设你.CreateCriteria（“ForeignCollection”）
用别名加入可以用做加盟额外的过载.CreateCriteria（“ForeignCollection”，“aliasname”）

在Where部分中，您可以使用“aliasname”例如“aliasname.Id”（即使这是DetachedCriteria中的名称，但是您的查询doesn'看起来像它需要一个分离标准）

更新

我认为你应该考虑在分离标准中只选择仪器IDS（即，标准4）而不是仪器编号。
接下来，你可以使用criteria4一个子查询，例如：

Subqueries.PropertyEq("instr.InstrumentId", criteria4) 

其中INSTR是criteria5别名

使用criteria5中选择对应的instrumentnumbers