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PONHibernate: Criteria - getting list of child id's
 

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  1. PONHibernate: Criteria - getting list of child id's
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    <p>I have a couple of entities in a many to many relationship. Given the parent ID, how do I, using ICriteria, retrieve a list of children?</p> <p>Code so far:</p> <pre><code>var driverList = DriverGroup.CreateCriteria() .Add(Restrictions.IdEq(groupId)) .SetFetchMode("Drivers", FetchMode.Eager) .SetResultTransformer(Transformers.DistinctRootEntity) .UniqueResult&lt;DriverGroup&gt;().Drivers.Select(x =&gt; x.Id). ToArray(); var criteria = Driver.CreateCriteria() .Add(Restrictions.In("Id", driverList)); </code></pre> <p>However, the SQL generated is:</p> <pre><code>SELECT this_.groupId as groupId5_1_, this_.name as name5_1_, this_.type as type5_1_, drivers2_.groupId as groupId3_, ... fields snipped ... drivers3_.userId as ID3, ... fields snipped ... FROM dbo.Groups this_ left outer join dbo.Object_Rel drivers2_ on this_.groupId=drivers2_.groupId left outer join dbo.vwDriverSimple driverbase3_ on drivers2_.ID=driverbase3_.userID WHERE this_.type=0 AND this_.groupId = @p0; @p0 = 443 [Type: Int32 (0)] SELECT this_.userID as userID10_1_, ... fields snipped ... FROM dbo.drivers this_ WHERE this_.userID in ( @p0, ... lots of parameters ...); </code></pre> <p>How do I get it to generate the following?</p> <pre><code>SELECT this_.userID as userID10_1_, ... fields snipped ... FROM dbo.drivers this_ WHERE this_.userID in ( SELECT drivers3_.userId as ID3 FROM dbo.Groups this_ left outer join dbo.Object_Rel drivers2_ on this_.groupId=drivers2_.groupId left outer join dbo.vwDriverSimple driverbase3_ on drivers2_.ID=driverbase3_.userID WHERE this_.type=0 AND this_.groupId = @p0; @p0 = 443 [Type: Int32 (0)] ); </code></pre>
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