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Re: [NHibernate-development] Strange bug when querying a circular
 graph with several joins

Will Shaver

2008-07-03

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What version of c# and nh are you using?
 
Here's an extension method that I use for these type of of problems

public static ICriteria CriteriaByLongAlias(this ICriteria criteria, string field)
{
 ICriteria byAlias = criteria.GetCriteriaByAlias(criteria.Alias + "_" + field);
 if(byAlias == null)
   byAlias = criteria.CreateCriteria(field, criteria.Alias + "_" + field);
 return byAlias;
}
Use this as follows:

ICriteria criteria = NHsession.CreateCriteria(typeof(Role));
ICriteria primaryLocationCriteria = criteria.CriteriaByLongAlias("PrimaryLocation");
ICriteria addressCriteria = primaryLocationCriteria.CriteriaByLongAlias("Address");
addressCriteria.Add(Expression.Like("Postcode", "BS%"));

 

If you review CriteriaImpl.cs you will note that while CreateAlias returns the original criteria, CreateCritieria returns the subcriteria. I've found it best to ignore CreateAlias.



 
On Thu, Jul 3, 2008 at 7:03 AM, Fabio Maulo <fabiomaulo@gmail.com> wrote:
Hi Chris,
You can start from one of the users forums http://groups.google.com.ar/group/nhusers

Our issue tracker is (only for bugs, improvement etc.) : http://jira.nhibernate.org/secure/Dashboard.jspa

Thanks
--
Fabio Maulo
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