Thank you very much!! That is exactly what I needed. -Eric.
On Dec 21, 8:42 am, Diego Mijelshon <[email protected]> wrote: > The easiest Criteria query would be: > > var peopleWithFords = session.CreateCriteria<Person>() > .CreateCriteria("Cars") > .Add(Restrictions.Eq("Make", "Ford")) > .SetResultTransformer(Transformers.DistinctRootEntity) > .List<Person>(); > > However, that'll issue an additional select to get people's cars (it's > transparent to the code, but you have created a SELECT N+1 problem). > > This query will do exactly what you want: > > var peopleWithFordsIds = DetachedCriteria.For<Person>() > .CreateAlias("Cars", "car") > .Add(Restrictions.Eq("car.Make", "Ford")) > .SetProjection(Projections.Property("Id")); > var peopleWithFords = session.CreateCriteria<Person>() > .Add(Subqueries.PropertyIn("Id", peopleWithFordsIds)) > .SetFetchMode("Cars", FetchMode.Join) > .SetResultTransformer(Transformers.DistinctRootEntity) > .List<Person>(); > > BTW, I renamed your People class to Person :-) > > Diego > > On Mon, Dec 21, 2009 at 08:27, Eric J. Peters <[email protected]> wrote: > > > > > This seems like it should be a simple query, but I just can't figure > > it out. > > > I want a criterion that represents all People who own at least 1 Ford, > > and I want the results to return all Cars those people own. > > > People { int Id, IList<Car> Cars } > > Car { int Id, string make, string model } > > > I was hoping for an Expression.Contains("Cars", carObject), or even > > better yet Expression.Contains("Cars.make", "Ford"), but clearly > > neither exist. Everything I've tried seems to either give me runtime > > errors or no results. Can somebody point me in the right direction? > > > Thanks, > > -Eric. > > > -- > > > You received this message because you are subscribed to the Google Groups > > "nhusers" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]<nhusers%[email protected]> > > . > > For more options, visit this group at > >http://groups.google.com/group/nhusers?hl=en. -- You received this message because you are subscribed to the Google Groups "nhusers" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nhusers?hl=en.
